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Molecules ; 26(9)2021 Apr 28.
Article in English | MEDLINE | ID: covidwho-1238920

ABSTRACT

Methanol is a natural ingredient with major occurrence in fruit spirits, such as apple, pear, plum or cherry spirits, but also in spirits made from coffee pulp. The compound is formed during fermentation and the following mash storage by enzymatic hydrolysis of naturally present pectins. Methanol is toxic above certain threshold levels and legal limits have been set in most jurisdictions. Therefore, the methanol content needs to be mitigated and its level must be controlled. This article will review the several factors that influence the methanol content including the pH value of the mash, the addition of various yeast and enzyme preparations, fermentation temperature, mash storage, and most importantly the raw material quality and hygiene. From all these mitigation possibilities, lowering the pH value and the use of cultured yeasts when mashing fruit substances is already common as best practice today. Also a controlled yeast fermentation at acidic pH facilitates not only reduced methanol formation, but ultimately also leads to quality benefits of the distillate. Special care has to be observed in the case of spirits made from coffee by-products which are prone to spoilage with very high methanol contents reported in past studies.


Subject(s)
Alcoholic Beverages/analysis , Alcoholic Beverages/standards , Fruit/chemistry , Methanol/chemistry , Fermentation , Food Quality , Hydrogen-Ion Concentration , Kinetics
3.
Annu Rev Food Sci Technol ; 12: 1-28, 2021 03 25.
Article in English | MEDLINE | ID: covidwho-991936

ABSTRACT

The modern food supply faces many challenges. The global population continues to grow and people are becoming wealthier, so the food production system must respond by creating enough high-quality food to feed everyone with minimal damage to our environment. The number of people suffering or dying from diet-related chronic diseases, such as obesity, diabetes, heart disease, stroke, and cancer, continues to rise, which is partly linked to overconsumption of highly processed foods, especially high-calorie or rapidly digestible foods. After falling for many years, the number of people suffering from starvation or malnutrition is rising, and thishas been exacerbated by the global COVID-19 pandemic. The highly integrated food supply chains that spread around the world are susceptible to disruptions due to policy changes, economic stresses, and natural disasters, as highlighted by the recent pandemic. In this perspective article, written by members of the Editorial Committee of the Annual Review of Food Science and Technology, we highlight some of the major challenges confronting the modern food supply chain as well as how innovations in policy and technology can be used to address them. Pertinent technological innovations include robotics, machine learning, artificial intelligence, advanced diagnostics, nanotechnology, biotechnology, gene editing, vertical farming, and soft matter physics. Many of these technologies are already being employed across the food chain by farmers, distributors, manufacturers, and consumers to improve the quality, nutrition, safety, and sustainability of the food supply. These innovations are required to stimulate the development and implementation of new technologies to ensure a more equitable, resilient, and efficient food production system. Where appropriate, these technologies should be carefully tested before widespread implementation so that proper risk-benefit analyses can be carried out. They can then be employed without causing unforeseen adverse consequences. Finally, it is important to actively engage all stakeholders involved in the food supply chain throughout the development and testing of these new technologies to support their adoption if proven safe and effective.


Subject(s)
Food Supply/standards , Agriculture , Artificial Intelligence , Biotechnology , COVID-19 , Food Quality , Food Safety , Humans , Nanotechnology , Pandemics , Robotics
4.
Epidemiol Serv Saude ; 29(4): e2020407, 2020.
Article in Portuguese, English | MEDLINE | ID: covidwho-911042

ABSTRACT

OBJECTIVE: To describe lifestyle changes with regard to consumption of tobacco and alcohol, food intake and physical activity, in the period of social restriction resulting from the COVID-19 pandemic. METHODS: This is a cross-sectional study conducted in Brazil with data from the ConVid online health behavior survey. The data were collected via an online questionnaire answered by the survey participants. Post-stratification procedures were used to calculate prevalence rates and 95% confidence intervals. RESULTS: 45,161 individuals aged 18 years or more participated. During the period of social restriction participants reported a decrease in practicing physical activity and an increase in time spent using computers or tablets or watching TV, intake of ultra-processed foods, number of cigarettes smoked and alcoholic beverage consumption. Differences were observed according to sex and age group. CONCLUSION: The results indicate a worsening of lifestyles and an increase in health risk behaviors.


Subject(s)
Betacoronavirus , Coronavirus Infections/epidemiology , Life Style , Pneumonia, Viral/epidemiology , Adult , Age Factors , Alcohol Drinking/epidemiology , Brazil/epidemiology , COVID-19 , Cross-Sectional Studies , Exercise , Fast Foods/statistics & numerical data , Female , Food Quality , Health Surveys/statistics & numerical data , Humans , Male , Middle Aged , Pandemics , SARS-CoV-2 , Sedentary Behavior , Sex Factors , Smoking/epidemiology , Snacks , Young Adult
5.
PLoS One ; 15(7): e0235597, 2020.
Article in English | MEDLINE | ID: covidwho-636858

ABSTRACT

Facing a growing and more affluent world population, changing climate and finite natural resources, world food systems will have to change in the future. The aim of the Agrimonde-Terra foresight study was to build global scenarios linking land use and food security, with special attention paid to overlooked aspects such as nutrition and health, in order to help explore the possible future of the global food system. In this article, we seek to highlight how the resulting set of scenarios contributes to the debate on land use and food security and enlarges the range of possible futures for the global food system. We highlight four main contributions. Combining a scenario building method based on morphological analysis and quantitative simulations with a tractable and simple biomass balance model, the proposed approach improves transparency and coherence between scenario narratives and quantitative assessment. Agrimonde-Terra's scenarios comprise a wide range of alternative diets, with contrasting underlying nutritional and health issues, which accompany contrasting urbanization and rural transformation processes, both dimensions that are lacking in other sets of global scenarios. Agrimonde-Terra's scenarios share some similarities with existing sets of global scenarios, notably the SSPs, but are usually less optimistic regarding agricultural land expansion up to 2050. Results suggest that changing global diets toward healthier patterns could also help to limit the expansion in agricultural land area. Agrimonde-Terra's scenarios enlarge the scope of possible futures by proposing two pathways that are uncommon in other sets of global scenarios. The first proposes to explore possible reconnection of the food industry and regional production within supranational regional blocs. The second means that we should consider that a 'perfect storm', induced by climate change and an ecological crisis combined with social and economic crises, is still possible. Both scenarios should be part of the debate as the current context of the COVID-19 pandemic shows.


Subject(s)
Coronavirus Infections/economics , Food Supply , Pandemics/economics , Pneumonia, Viral/economics , Agriculture , COVID-19 , Computer Simulation , Conservation of Natural Resources , Coronavirus Infections/epidemiology , Diet , Food Quality , Global Health , Humans , Pneumonia, Viral/epidemiology , Urbanization
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