16S rRNA gene sequencing data of plant growth-promoting jute-associated endophytic and rhizobacteria from coastal-environment of Ondo State, Nigeria.

This study provides sequence datasets of endophytic and rhizobacteria of jute using 16S rRNA gene sequencing. The plant samples were first surface sterilized and DNA of the bacteria from soil and jute roots and stem was extracted using Quick-DNA™ Fungal/Bacterial Miniprep Kit. The purified DNA was amplified and subjected to polymerase chain reaction using forward and reverse primers. The PCR products were sequenced on Applied Biosystems ABI 3500XL Genetic Analyser (Applied Biosystems, ThermoFisher Scientific). The sequences were analyzed using BioEdit version 7.2.5 and then BLAST on NCBI. The identifiable bacteria include the rhizobacteria, Citrobacter fruendii RZS23 (accession number: CP024673.1), endophytic bacteria, Bacillus cereus EDR23 (accession number: LN890242.1), and Morganella morganii EDS23 (accession number: KR094121.1). The plant growth-promoting traits exhibited by these bacteria suggest their future exploration as bioinoculants.

Effects of climate warming on soil nitrogen cycles and bamboo growth in core giant panda habitat.

Climate change can pose a significant threat to terrestrial ecosystems by disrupting the circulation of soil nitrogen. However, experimental analyses on the effect of climate change on soil nitrogen cycles and the implications for the conservation of key wildlife species (i.e., the giant panda, Ailuropoda melanoleuca) remain understudied. We investigated the effects of a 1.5 °C, 3 °C, and 4.5 °C temperature increase on nitrogen distribution in different soil layers of bamboo forest via an in-situ experiment and assessed the implications for the growth and survival of arrow bamboo (Bashania faberi), a critical food resource for giant pandas. Our results showed that warming treatments generally increased soil N content, while effects differed between surface soil and subsurface soil and at different warming treatments. Particularly an increase of 1.5 °C raised the subsurface soil NO3-N content, as well as the content of N in bamboo leaves. We found a significant positive correlation between the subsurface soil NO3-N content and the N content of arrow bamboo. An increase of 3-4.5 °C raised the content of total N and NO3-N in the surface soil and led to a reduction in the total aboveground biomass and survival rate of arrow bamboo. Limited warming (e.g., the increase of 0-1.5 °C) may promote the soil N cycle, raise the N-acetylglucosaminidase (NAG) enzyme activity, increase NO3-N in subsurface soil, increase the N content of bamboo, and boost the biomass of bamboo - all of which could be beneficial to giant panda survival. However, higher warming (e.g., an increase of 3-4.5 °C) resulted in mass death of bamboo and a large reduction in aboveground biomass. Our findings provide a cautiously optimistic scenario for bamboo forest ecosystems under low levels of warming over a short period of time, but risks from higher levels of warming may be serious, especially considering the unpredictability of global climatic change.

Study on the Quality Variation and Internal Mechanisms of Frozen Oatmeal Cooked Noodles during Freeze-Thaw Cycles.

Frozen staple food, attributed to its favorable taste and convenience, has a promising development potential in the future. Frequent freezing and thawing, however, will affect its quality. This study simulated several freeze-thaw cycles (FTC) that may occur during the cold chain process of frozen oatmeal cooked noodles (FOCN) production to consumption. The quality changes and their mechanisms were elucidated using methods such as differential scanning calorimetry (DSC), low-field nuclear magnetic resonance (LF-NMR), Fourier-transform infrared spectroscopy (FTIR), confocal laser scanning microscopy (CLSM), texture analysis, and sensory evaluation. The freezable water content of the FOCN decreased because of the FTC treatment, and the relative content of total water in FOCN also decreased accordingly. The increase in ß-Turn after FTC induced disorder in the secondary structure of proteins, causing the protein microstructure to become loose and discontinuous, which in turn reduced the water-holding capacity of FOCN. Additionally, FTC reduced the chewiness and sensory score of FOCN. This research will contribute a theoretical foundation for optimizing the cold chain process.

Rice Nutraceuticals and Bioactive Compounds: Extraction, Characterization and Antioxidant Activity: A Review.

Rice (Oryza sativa L.), a cereal grass, belongs to the genus Oryza from the family Poaceae, which encompasses twenty-five species cultured in many countries of Asia, and partly in the rest of the world. From these species, two viz. Oryza sativa (O. sativa) Asian rice and Oryza glaberrima (O. glaberrima) African rice are commonly found and the most widely consumed staple food by a large part of the human population in the world, especially in Asia due to their nutritional and nutraceutical prospects. Rice, a popular source of carbohydrates, also contains a good amount of dietary fiber, minerals (Ca, Zn, Se, P, K, Mg, Fe, and Mn), protein and vitamin B along with several other medicinally important bioactives such as tocols (α-tocopherols and α-tocotrienols) (ßsitosterol) phenolic acids, flavonoids (apiginine), and oryzanol (24-Methylenecylcoartanyl transferulate). Rice bran is a byproduct of the rice polishing industry and is valuable in terms of containing 15-20% high-value oil. Because of the natural antioxidants present in rice, several medicinal benefits and biological properties can be attributed to rice consumption. The nutrient profile of rice varies based on several factors, such as grains (white, brown, red, and black/purple), the extent of polishing, and the preparation method. Considering the importance of rice as a traditional diet rich in high-value bioactives, together with the existing gap of related information, it is worthwhile to assemble a comprehensive review that focuses on the detailed profile of valuable nutrients and high-value phytochemicals and biological activities of rice to explore its functional food and nutraceutical applications. This review attempts to provide collective information on the essential rice cereal for its nutritional and antioxidant potential.

Healthy Foods in Convenience Stores: Benefits, Barriers, and Best Practices.

Accessing healthy food is a challenge for many. Healthy corner store initiatives have proven successful at promoting healthy food access nationwide. Recent data suggest that 11.8% of Clark County residents and 17.1% of Henderson, Nevada, residents experienced food insecurity. It is crucial to assess the current perceptions and practices of the community before pursuing policy change to ensure that pilot programs reflect its members' needs. This study aimed to identify which healthy foods consumers would like to see offered in convenience stores, assess purchasing behaviors, and explore barriers preventing store owners from carrying healthy foods. In doing so, this study aimed to ensure that the needs of owners and consumers are reflected in local policy changes. Project staff collected data through two approaches: (a) convenience store owner interviews (n = 2; who represented eight stores total) and (b) consumer intercept surveys (n = 88) within low-income census tracts of Henderson, Nevada. The cost of healthy foods-for storeowners and consumers-was a major factor when selecting items to stock. Storeowners also described key contextual barriers such as minimum purchasing requirements, city regulations limiting promotions, and healthy, fresh food not being in high enough demand for the many transient customers passing through. Survey respondents' most commonly reported barrier to accessing healthy food was their lack of availability in convenience stores, suggesting it would be beneficial if stores offered healthier options to increase access. The results of this study will inform the community's next steps to increase access to healthy foods, including implementing a pilot healthy corner store project and a City-sponsored marketing campaign. Our methods and lessons learned may be useful for other municipalities considering health corner and convenience store initiatives.

Associations of types of grains and lifestyle with all-cause mortality among Chinese adults aged 65 years or older: a prospective cohort study.

BACKGROUND: Little is known on the association of types of grains with mortality and the moderating effect of lifestyle on this association. This study aims to evaluate the single or joint associations of types of grains and lifestyle with all-cause mortality among Chinese older adults. METHODS: Data were derived from the Chinese Longitudinal Healthy Longevity Survey (CLHLS) from 1998 to 2018. Subjects aged ≥ 65 years were eligible. The types of grains included wheat, total rice, and coarse cereals. Lifestyle was derived using smoking, alcohol consumption, physical activity, and dietary pattern. All-cause mortality was the primary outcome. RESULTS: This study included 30275 participants with a mean age 87 ± 11 years and documented 19261 deaths during a mean follow-up of 4.8 years. Compared to wheat, in those with healthy and intermediate lifestyle, total rice was associated with a 13% (HR: 0.87, 95% CI 0.80, 0.93) and 6% (HR: 0.94, 95% CI 0.90, 1.00) lower risk of mortality, respectively, and coarse cereals were associated with a 14% (HR: 0.86, 95% CI 0.74, 1.00) and 12% (HR: 0.88, 95% CI 0.79, 0.97) lower risk of mortality, respectively. Meanwhile, an increase per SD in intakes of wheat and coarse cereals was associated with a 10% (HR: 1.10, 95% CI 1.03, 1.18) and 25% (HR: 1.25, 95% CI 1.08, 1.44) higher mortality rate in those with healthy lifestyle, and a 13% (HR: 1.13, 95% CI 1.08, 1.19) and 29% (HR: 1.29, 95% CI 1.17, 1.44) higher mortality in females but not males. In addition, a U-shaped association of intake of total grains with all- cause mortality was observed (P for non-linearity = 0.002), and a J-shaped association of intake of total rice with all- cause mortality was observed (P for non-linearity = 0.003). CONCLUSIONS: Specific types of grains and lifestyle were separately or jointly associated with all-cause mortality. Compared to wheat, total rice and coarse cereals were advanced grains for participants with a relatively healthy lifestyle. Intake of total rice was related to all-cause mortality in a dose-response manner. Therefore, a combination of intermediate intake of total rice and healthy lifestyle should be encouraged in older adults.

Food price volatility and socio-economic inequalities in poor food consumption status during coronavirus disease-2019 lockdown among slum and non-slum households in urban Nansana municipality, Uganda.

BACKGROUND: This study assessed staple food price volatility, household food consumption scores (FCS), poor household food consumption status and its association with socio-economic inequalities during enforcing and partial lifting of coronavirus disease-2019 (COVID-19) lockdown restrictions in slum and non-slum households (HHs) of Nansana municipality, Uganda. METHODS: Repeated cross-sectional surveys were conducted during enforcing and partial lifting of COVID-19 lockdown restrictions. A total of 205 slum and 200 non-slum HHs were selected for the study. Telephone based interviews with HH heads were used to collect data on socio-economic factors. Data for FCS was collected using the World Food Programme FCS method. Prices for staple foods were collected by face-to-face interviews with food vendors from the local market. Mean staple food price differences before COVID-19 lockdown, during enforcing, and partial lifting of lockdown was tested by Analysis of variance with repeated measures. Multivariate logistic regression analysis was used to assess the association between socio-economic variables and poor food consumption status. A statistical test was considered significant at p < 0.05. RESULTS: Mean staple food prices were significantly higher during enforcing COVID-19 total lockdown restrictions compared to either 1 week before lockdown or partial lifting of lockdown (p < 0.05). Mean FCS for staple cereals and legumes were significantly higher in slum HHs during COVID-19 lockdown compared to when the lockdown was partially lifted (p < 0.05). In slum HHs, the prevalence of poor food consumption status was significantly higher during partial lifting (55.1%) compared to total lockdown of COVID-19 (15.1%), p < 0.05. Among slum HHs during lockdown restrictions, food aid distribution was negatively associated with poor food consumption status (AOR: 0.4, 95% CI: 0.1-0.6), whilst being a daily wage earner was positively associated with poor food consumption status (AOR: 0.5, 95% CI: 0.1-0.6). During partial lifting of COVID-19 lockdown in slum HHs, poor food consumption status was positively associated with female headed HHs (AOR: 1.2, 95%CI: 1.1-1.6), daily wage earners (AOR: 3.2, 95% CI: 2.6-3.8), unemployment (AOR: 1.9, 95% CI: 1.5-2.1) and tenants (AOR: 2.4, 95% CI: 1.8-3.5). Female headed HHs, daily wage earners and tenants were positively associated with poor food consumption status either during enforcing or partial lifting of COVID-19 lockdown restrictions in non-slum HHs. CONCLUSION: Staple food prices increased during enforcing either the COVID-19 lockdown or partial lifting of the lockdown compared to before the lockdown. During the lockdown, food consumption improved in slum HHs that received food aid compared to those slum HHs that did not receive it. Household heads who were females, daily wage earners, unemployed, and tenants were at risk of poor food consumption status either in slum or non-slum, and therefore needed some form of food assistance either during enforcing or partial lifting of the lockdown.

[Carbon footprint of major grain crops in the middle and lower reaches of the Yangtze River during 2011-2020]. / 2011­2020年长江中下游地区主要粮食作物生产碳足迹.

The middle and lower reaches of the Yangtze River is one of main grain production areas in China, which is of great significance to food security. Understanding the carbon footprint of major grain crop production is helpful to develop high-yield and low-carbon agriculture. Based on the data of yield, sown area and farmland production input of main grain crops (rice, wheat and maize) in six provinces (Jiangsu, Anhui, Jiangxi, Hubei, Hunan, and Zhejiang) in the middle and lower reaches of the Yangtze River from 2011 to 2020, we estimated carbon footprint in the production of the three grain crops. The results showed that from 2011 to 2020, yield per unit area, planting area, and total yield of rice, wheat and maize were the highest in Jiangsu Province. In terms of area-scaled carbon footprint, rice in the middle and lower reaches of the Yangtze River had the highest area-scaled carbon footprint, with an average of 2.0 t CE·hm-2, followed by wheat and maize. The area-scaled carbon footprint of the three staple crops was increasing. In terms of yield-scaled carbon footprint, rice was the highest, with an average of 0.8 kg CE·kg-1, followed by wheat and maize. In terms of carbon input structure, irrigation electricity, chemical fertilizers and pesticides accounted for a relatively high proportion. Irrigation electricity accounted for 35.0%, 36.3%, and 33.2% of the total carbon input of rice, wheat and maize, respectively. Chemical fertilizers accounted for 28.8%, 32.5%, and 32.5%, respectively, while pesticides accounted for 24.2%, 13.3% and 11.5%, respectively. In terms of carbon efficiency, maize had the highest (3.9 kg·kg-1 CE), followed by rice and wheat. With the green development of agriculture, carbon emission in the production of major grain crops in the middle and lower reaches of the Yangtze River could be reduced by improving irrigation efficiency, fertilizer utilization efficiency, pesticide utilization efficiency and mechanized operation efficiency, as well as diversification of straw returning, cultivation of new varieties and policy leverage.

Giant pandas' staple food bamboo phyllosphere fungal community and its influencing factors.

Giant pandas have developed a series of foraging strategies to adapt to their special bamboo diets. Although bamboo is an important food resource for giant pandas in Liziping National Nature Reserve (Liziping NR), China, there are relatively few studies on their phyllosphere fungal community and its influencing factors. Herein, we used ITS1 amplification and metagenomic sequencing to analyze the phyllosphere fungi diversity and functions (KEGG, CAZyme, and antibiotic resistance gene) and explore the influencing factors for the three giant pandas foraging bamboo species (Arundinaria spanostachya, AS; Yushania lineolate, YL; and Fargesia ferax, FF) over different seasons (spring vs. autumn) in Liziping NR, China. We found that Ascomycota and Basidiomycota were the most dominant phyla in the bamboo phyllosphere. The alpha diversity (e.g., the Sobs index and Shannon index) was relatively higher in autumn samples than in spring samples, and the community structure differed significantly between the three bamboo species in spring and autumn. Some biotic and abiotic variables (e.g., the elevation and mean base diameter of bamboo) significantly influenced the abundance, diversity, and community structure of the bamboo phyllosphere fungal community. Moreover, the functional analysis showed the differences in the glycoside hydrolase community and antibiotic resistance gene (ARG) profile between spring and autumn samples. Co-occurrence network modeling suggested that AS phyllosphere fungal communities in autumn employed a much more complex network than that in spring, and the abundance of multidrug, tetracycline, and glycopeptide resistance genes was high and closely correlated with other ARGs. These results indicate that fungal community's abundance, diversity, and community structure are mainly affected by the season, host species, and elevation. The season and host species are major factors affecting the biological functions (KEGG and CAZyme), ARGs, and interactions between sympatric bacterial and fungal communities in bamboo phyllosphere. This integrated study can provide a reference basis for the seasonal management of bamboo resources foraged by wild giant pandas, and predict the risk of antibiotic resistance in bamboo phyllosphere fungal flora in Liziping NR (Xiaoxiangling mountains), China.

Individual and combinatorial effects of SNP and NaHS on morpho-physio-biochemical attributes and phytoextraction of chromium through Cr-stressed spinach (Spinacia oleracea L.).

Chromium (Cr) is a toxic heavy metal that contaminates soil and water resources after its discharge from different industries. A pot experiment was conducted to determine the effects of single and/or combined application of sodium nitroprusside (SNP) (250 µM) and sodium hydrogen sulfide (NaHS) (1 mM) on growth, photosynthetic pigments, gas exchange characteristics, oxidative stress biomarkers, antioxidant machinery (enzymatic and non-enzymatic antioxidants), ion uptake, organic acid exudation, and Cr uptake of spinach (Spinacia oleracea L.) exposed to severe Cr stress [Cr: 0 (no Cr), 150, and 300 µM]. Our results depicted that Cr addition to the soil significantly (P < 0.05) decreased plant growth and biomass, gas exchange attributes, and mineral uptake by S. oleracea when compared to the plants grown without the addition of Cr. However, Cr toxicity boosted the production of reactive oxygen species (ROS) by increasing the content of malondialdehyde (MDA), which is the indication of oxidative stress in S. oleracea, and was also manifested by hydrogen peroxide (H2O2) content and electrolyte leakage to the membrane-bound organelles. The results showed that the activities of various antioxidative enzymes, such as superoxidase dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX), and the content of non-enzymatic antioxidants, such as phenolic, flavonoid, ascorbic acid, and anthocyanin, initially increased with an increase in the Cr concentration in the soil. The results also revealed that the levels of soluble sugar, reducing sugar, and non-reducing sugar were decreased in plants grown under elevating Cr levels, but the accumulation of the metal in the roots and shoots of S. oleracea, was found to be increased, and the values of bioaccumulation factor were <1 in all the Cr treatments. The negative impacts of Cr injury were reduced by the application of SNP and NaHS (individually or combined), which increased plant growth and biomass, improved photosynthetic apparatus, antioxidant enzymes, and mineral uptake, as well as diminished the exudation of organic acids and oxidative stress indicators in roots of S. oleracea by decreasing Cr toxicity. Here, we conclude that the application of SNP and NaHS under the exposure to Cr stress significantly improved plant growth and biomass, photosynthetic pigments, and gas exchange characteristics; regulated antioxidant defense system and essential nutrient uptake; and balanced organic acid exudation pattern in S. oleracea.

The effect of steamed potato-wheat bread intake on weight, lipids, glucose, and urinary Na+/K+: A randomized controlled trial in Chinese adults.

Steamed potato bread has received much attention from nutritionists and agriculturalists since it became a staple food of China in 2015. Epidemiological studies have indicated that potatoes may cause diabetes and hypertension, but few trials have evaluated this effect. Through a clinical trial, we evaluated the effect of steamed potato bread intake on adults. In total, 49 and 30 individuals were assigned to the intervention and control groups, respectively. Potato-wheat bread (raw wheat flour and cooked potato flour in the ratio 3:7) and steamed wheat bread (100% raw wheat flour) were provided to the intervention and control groups, respectively, once a day for 4 weeks. Compared with the control group, the intervention group showed significant net changes in weight (-0.6 kg; 95% confidence interval [CI]: -1.2, -0.1; p = 0.016), body mass index (BMI, -0.2 kg/m2; 95% CI: -0.4, -0.1; p = 0.020), low-density lipoprotein cholesterol (LDL-c, -0.22 mmol/L; 95% CI: -0.49, -0.01; p = 0.035), and the urinary level of Na+/K+ (-2.4; 95% CI: -4.1, -0.7; p = 0.007). In conclusion, the steamed potato-wheat bread intake for 4 weeks resulted in decreases in weight, BMI, LDL-c, and the urinary Na+/K+ level among Chinese adults.

Changes in the Water-Energy Coupling Relationship in Grain Production: A Case Study of the North China Plain.

Water consumption and energy consumption are inevitable in grain production, but few studies have focused on the integrated assessment of these two indicators and their relationships. To address the research deficiency, taking the North China Plain (NCP) as a case study, this paper quantifies the changes in grain crop planting structure and the accompanying changes in irrigation water consumption (IWC) and energy consumption (EC) in the NCP. On this basis, the water-energy coupling index (CI) is constructed to analyze the water-energy coupling relationship in the context of grain crop planting structure change. The results revealed that the sown area of three of the four main grain crops in the NCP, namely winter wheat, summer maize, and rice, roughly increased in the south and decreased in the north, while the sown area of spring maize increased in most counties where it was planted in the NCP from 2000 to 2015. With the change of grain crop planting structure, IWC and EC of winter wheat in the NCP decreased by 19.87 × 106 m3 and 16.78 × 108 MJ, respectively, mainly distributed in the Beijing-Tianjin-Hebei region, while IWC and EC of other crops all increased. In terms of CI values, although that of spring maize increased, those of winter wheat, summer maize, and rice all decreased, and the overall CI values of grain production in the NCP decreased from 0.442 in 2000 to 0.438 in 2015, indicating that grain crop distribution has been optimized toward a less water- and energy-intensive and more sustainable layout in the NCP. This paper can add case and methodological support to the food-water-energy (FEW) nexus research and can also provide policy suggestions for regional crop optimization layout and conservation of both water and energy resources.

Dietary Patterns and Their Associations with Intermediate Age-Related Macular Degeneration in a Japanese Population.

This population-based cross-sectional study investigated the influence of dietary patterns on age-related macular degeneration (AMD) in a Japanese population. The Tsuruoka Metabolomics Cohort Study enrolled a general population aged 35-74 years from among participants in annual health check-up programs in Tsuruoka City, Japan. Eating habits were assessed using a food frequency questionnaire. Principal component analysis was used to identify dietary patterns among food items. The association between quartiles of scores for each dietary pattern and intermediate AMD was assessed using multivariate logistic regression models. Of 3433 participants, 415 had intermediate AMD. We identified four principal components comprising the Vegetable-rich pattern, Varied staple food pattern, Animal-rich pattern, and Seafood-rich pattern. After adjusting for potential confounders, higher Varied staple food diet scores were associated with a lower prevalence of intermediate AMD (fourth vs. first quartile) (OR, 0.63; 95% confidence interval [CI], 0.46-0.86). A significant trend of decreasing ORs for intermediate AMD associated with increasing Varied staple food diet scores was noted (p for trend = 0.002). There was no significant association between the other dietary patterns and intermediate AMD. In a Japanese population, individuals with a dietary pattern score high in the Varied staple food pattern had a lower prevalence of intermediate AMD.

Understanding the drivers of food security among agriculture-based households in Gurué District, Central Mozambique.

BACKGROUND: The prevalence of food insecurity in Mozambique is alarming, despite progress made during the 2010s. Several studies apply different proxy indicators of food security (FS) to assess the FS situation. However, these studies overlook the factors affecting FS, using only a single data point that results in an incomplete picture of FS. Food security is expected to fluctuate, being better and worse than what studies suggest. Using a sample of 296 households to assess FS, key drivers conditioning households' capacity to achieve FS in Gurué District, Central Mozambique, are identified. Data were collected in the pre-harvest period and during the harvest period to capture relevant interseasonal variation of FS. Household FS is assessed using three standard indicators: Household Dietary Diversity Score (HDDS), Household Food Consumption Score (HFCS), and Months of Adequate Household Food Provisioning (MAHFP). RESULTS: Each household was classified into a specific FS status depending on the indicator applied. Generally, most households were classified as being severely or moderately food insecure during the pre-harvest season, while during the harvest season, medium and high levels of FS predominated. Nevertheless, varying outcomes were found depending on the indicator used to assess FS. MAHFP and HDDS are more related to the consumption of farm-sourced food, while HFCS responds more strongly to purchased food. Gender and age of the household head, geographic location, size and quality of land, staples production (especially cassava), livestock and crop diversity, as well as cash crops had a statistically significant effect on FS indicators. CONCLUSIONS: The study concludes that the decision whether farmers should rely on staple foods production for increasing their FS status or specialize on cash crops production to generate income and buy food depends on the indicator used to assess FS, since each indicator captures a specific domain of food security. Thus, one central recommendation derived from our results is that policy makers should promote a balance between market-oriented agriculture and subsistence production to achieve FS. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s40066-021-00344-3.

Effect of iron-fortified rice on the hemoglobin level of the individuals aged more than six months: A meta-analysis of controlled trials.

Fortification of staple food items with iron is a potential strategy to address anemia for a larger population. We reviewed studies to assess the impact of iron-fortified rice (IFR) on hemoglobin levels of individuals more than six months of age. We included studies assessing the effectiveness of IFR (with or without other micronutrients) conducted in any part of the world available in PubMed, Embase, Web of Science, Cochrane Library, Google Scholar, clinicaltrials.gov, International database of prospectively registered systematic reviews in health and social care (PROSPERO), unicef.org, and who.int databases and published from January 1, 1990 to April 1, 2019 (PROSPERO registration number: RD42020139895). We extracted the changes in hemoglobin, serum ferritin, and serum transferrin levels among the participants. Finally, data from 15 trials and their 21 subsets were analyzed. Mean difference in hemoglobin was 0.53 g/dl (95% CI: 0.26, 0.80, P < 0.001, I2 = 84%) in the IFR group compared to the control group. In the subgroup analysis after removing studies with small sample size and high risk for bias, a mean difference of 0.44 g/dl (95% CI: 0.20, 0.69, P < 0.001, I2 = 82%) was observed. No significant effect on serum ferritin or transferrin levels was observed. From this review it can be concluded that fortification of rice with iron can be adopted as an intervention to improve hemoglobin levels, especially in countries where rice is the major part food of staple diet. Research is needed on an optimal iron compound for fortification and the acceptance of IFR.

Three decades of household food availability according to NOVA - Brazil, 1987-2018 / Três décadas da disponibilidade domiciliar de alimentos segundo a NOVA - Brasil, 1987-2018

ABSTRACT OBJECTIVE To evaluate the trend of household food acquisition according to the NOVA classification in Brazil between 1987-1988 and 2017-2018. METHODS We used household food acquisition data from five editions of the Pesquisas de Orçamentos Familiares (Household Budget Surveys), conducted by the Instituto Brasileiro de Geografia e Estatística (Brazilian Institute of Geography and Statistics), in the years 1987-1988, 1995-1996, 2002-2003, 2008-2009, and 2017-2018. All reported foods were categorized according to the NOVA classification. The household availability of food groups and subgroups was expressed through their share (%) in total calories, for all Brazilian families, by household situation (urban or rural), for each of the five geographic regions of the country, by fifths of the household income per capita distribution (2002-2003, 2008-2009 and 2017-2018 surveys), and for the 11 main urban regions of the country (1987-1988, 1995-1996, 2002-2003, 2008-2009 and 2017-2018 surveys). Linear regression models were used to assess the trend of increasing or decreasing food purchases. RESULTS The diet of the Brazilian population is still composed predominantly of foods in natura or minimally processed and processed culinary ingredients. However, our findings point to trends of increasing share of ultra-processed foods in the diet. This increase of 0.4 percentage points per year between 2002 and 2009 slowed down to 0.2 percentage points between 2008 and 2018. The consumption of ultra-processed food was higher among households with higher income, in the South and Southeast regions, in urban areas, and in metropolitan regions. CONCLUSION Our results indicate an increase in the share of ultra-processed foods in the diet of Brazilians. This is a worrisome scenario, since the consumption of such foods is associated with the development of diseases and the loss of nutritional quality of the diet.

RESUMO OBJETIVO Avaliar a tendência da aquisição domiciliar de alimentos de acordo com a classificação NOVA no Brasil entre 1987-1988 e 2017-2018. MÉTODOS Foram utilizados dados de aquisição domiciliar de alimentos provenientes de cinco edições da Pesquisas de Orçamentos Familiares, realizada pelo Instituto Brasileiro de Geografia e Estatística, nos anos 1987-1988, 1995-1996, 2002-2003, 2008-2009 e 2017-2018. Todos os alimentos reportados foram categorizados segundo a classificação NOVA. A disponibilidade domiciliar dos grupos e subgrupos de alimentos foi expressa por meio de sua participação (%) nas calorias totais, para o conjunto das famílias brasileiras, por situação do domicílio (urbana ou rural), para cada uma das cinco regiões geográficas do país, por quintos da distribuição de renda domiciliar per capita (inquéritos de 2002-2003, 2008-2009 e 2017-2018); e para as 11 principais regiões urbanas do país (inquéritos de 1987-1988, 1995-1996, 2002-2003, 2008-2009 e 2017-2018). Modelos de regressão linear foram utilizados para avaliar a tendência de aumento ou diminuição na aquisição dos alimentos. RESULTADOS A dieta da população brasileira ainda é composta predominantemente por alimentos in natura e minimamente processados e ingredientes culinários processados. No entanto, nossos achados apontam tendências de aumento da participação de alimentos ultraprocessados na dieta. Esse aumento que foi de 0,4 pontos percentuais ao ano na primeira porção do período estudado, entre 2002 e 2009, e desacelerou para 0,2 pontos percentuais entre 2008 e 2018. O consumo de alimentos ultraprocessados foi maior entres os domicílios de maior renda, nas regiões Sul e Sudeste, na área urbana, e nas regiões metropolitanas. CONCLUSÃO Os resultados do presente estudo apontam um aumento na participação de alimentos ultraprocessados na dieta dos brasileiros. Cenário preocupante, uma vez que o consumo de tais alimentos está associado ao desenvolvimento de doenças e à perda da qualidade nutricional da dieta.

Pesquisa de orçamentos familiares: tendência do consumo de alimentos tradicionais, 2002-2018 / Brazilian household survey: trend in traditional foods consumption, 2002-2018

Descrever a evolução de consumo de alimentos tradicionais e da cesta básica brasileira entre 2002 e 2018. Série temporal do consumo de alimentos tradicionais e da cesta básica brasileira com base nos dados das três últimas Pesquisas de Orçamentos Familiares. A tendência da aquisição alimentar domiciliar per capita anual dos alimentos foi analisada segundo os períodos estudados e as regiões brasileiras. Houve diminuição da aquisição alimentar domiciliar de todos os itens da cesta básica, exceto a manteiga (8,3%). As maiores reduções observadas foram: farinha de mandioca (-69,9%), farinha de trigo (-56,1%) e feijão (-52,3%). Na região Sul ocorreu a maior queda percentual de aquisição de feijão (-56,1%), e o Norte se destacou pela redução acentuada do consumo de carnes (-32,1%) e leites (-57,2%). A diminuição observada no consumo de alimentos tradicionais pode sinalizar possíveis prejuízos à saúde dos indivíduos e perda da identidade cultural alimentar brasileira.

The evolution of consumption of traditional foods and Brazilian basic food basket between 2002 and 2018 is described through a time series of consumption of traditional food and Brazilian basic food basket based on data from Brazilian household surveys. Trend of annual per capita household food acquisition of food was analyzed according to the studied periods and regions in Brazil. Results reveal there was a decrease in household food acquisition of all items in the basic food basket, except butter (8.3%). Greatest reduction rates comprised cassava flour (-69.9%), wheat flour (-56.1%) and beans (-52.3%). In the southern region highest percentage decrease rate comprised the acquisition of beans (-56.1%), whilst in the northern region a sharp reduction in meat (-32.1%) and milk consumption (-57.2%) may be underscored. Decrease in the consumption of traditional foods by the population may detect possible damage to the health of individuals and loss of the Brazilian food culture.

Development of a System Dynamics Model to Guide Retail Food Store Policies in Baltimore City.

Policy interventions to improve food access and address the obesity epidemic among disadvantaged populations are becoming more common throughout the United States. In Baltimore MD, corner stores are a frequently used source of food for low-income populations, but these stores often do not provide a range of affordable healthy foods. This research study aimed to assist city policy makers as they considered implementing a Staple Food Ordinance (SFO) that would require small stores to provide a range and depth of stock of healthy foods. A System Dynamics (SD) model was built to simulate the complex Baltimore food environment and produce optimal values for key decision variables in SFO planning. A web-based application was created for users to access this model to optimize future SFOs, and to test out different options. Four versions of potential SFOs were simulated using this application and the advantages and drawbacks of each SFO are discussed based on the simulation results. These simulations show that a well-designed SFO has the potential to reduce staple food costs, increase corner store profits, reduce food waste, and expand the market for heathy staple foods.

Importance of subterranean fungi in the diet of bonobos in Kokolopori.

Nonstaple food is a food resource which sole consumption does not allow the maintenance of regular physiological functions, thus constituting a minor portion of an individual's diet. Many primates consume nonstaple food such as meat, insects, and fungi. Hypotheses on the dietary importance of nonstaple food include its role as fallback food and as source of specific nutrients. We tested these two hypotheses by investigating mycophagy (i.e., the consumption of fungi) in a population of wild bonobos in the Kokolopori Bonobo Reserve, DRC. Specifically, we examined the relationship between fungus consumption and various factors relevant to bonobo feeding ecology (i.e., fruit abundance and the consumption of other food types). Additionally, we measured the deviation from linear travel when bonobos searched for fungi to evaluate the nature of fungus consumption (e.g., opportunistic or targeted). Lastly, we examined the nutritional content of the major fungus species consumed (Hysterangium bonobo) to test whether this food item was potentially consumed as source of specific nutrients. We found that bonobos spent a higher proportion of their time feeding on fungi when fruit abundance was higher, indicating that fungi were not consumed as a fallback food. Moreover, bonobos deviated from linear travel when visiting fungus patches more than observed when visiting fruit patches, suggesting that they actively sought out fungi. Lastly, initial analyses suggest that H. bonobo samples contained high concentration of sodium. Collectively, these results suggest that subterranean fungi appear to be attractive food source to Kokolopori bonobos, and that mycophagy may serve to supplement nutrients, like sodium, in bonobo diet.