ABSTRACT
Objective:To analyze the surveillance results of iodine deficiency disorders in Fuzhou City, Jiangxi Province, so as to master the iodine nutrition level of key population and evaluate the prevention and treatment effect of iodine deficiency disorders in the city.Methods:From 2017 to 2019, counties (districts) under the jurisdiction of Fuzhou City in Jiangxi Province were divided into five sampling areas (east, west, south, north, and central). A township was selected in each area, and a primary school was selected in each township. Forty children aged 8 to 10 were elected in each primary school. At the same time, 20 pregnant women were selected from each area. Home salt samples and urine samples of children and pregnant women were collected to determine the contents of salt iodine and urinary iodine, and the thyroid of children was examined by B-mode ultrasonography.Results:A total of 6 001 salt samples from children's homes were tested. The median iodine content of children's home salt samples was 24.60 mg/kg, the coverage rate of iodized salt reached 99.77% (5 987/6 001), and the edible rate of qualified iodized salt was 96.20% (5 773/6 001). A total of 3 000 salt samples from pregnant women's homes were tested. The median iodine content of pregnant women's home salt samples was 24.81 mg/kg, the coverage rate of iodized salt reached 99.97% (2 999/3 000), and the edible rate of qualified iodized salt was 96.97% (2 909/3 000). A total of 6 001 children's urine samples were tested, and the median urinary iodine was 172.23 μg/L. A total of 3 000 pregnant women's urine samples were tested, and the median urinary iodine was 178.35 μg/L. The rate of goiter in children was 1.00% (8/800) in 2017, 1.33% (8/600) in 2018, and 1.12% (9/800) in 2019.Conclusion:The iodine nutrition level of children and pregnant women in Fuzhou City of Jiangxi Province is suitable and meets the requirements of iodine deficiency disorders elimination standard.
ABSTRACT
Research teams work together to solve the technical bottleneck in the Panax notoginseng industry.These research directions mainly focus on breeding of new variety,alleviating the continuous cropping obstacles,building standard system and so on.We used methods such as biotechnology,information technology and so on,to realize digitization,network and intellectualization in the process of selection of producing areas,field management,harvest storage,solved key issues of the precise selection of producing areas,variety breeding,soil improvement,fertilization management,and realized the precision and optimization of ginseng cultivation.We built the composite technology system of pollution-free notoginseng.This technology system mainly contained the breeding of new cultivar,the composite technology of soil improvement,the cultivation system of pollution-free notoginseng and quality traceability system.A new disease-resistant cultivar of notoginseng was bred,which offered feasibility for the notoginseng continuous cropping.We first presented composite improvement technology of notoginseng continuous cropping soil.This improvement technology has been used in the field.This technology system of soil restoration and improvement guaranteed notoginseng continuous cropping.A first standard system of pollution-free notoginseng was issued.It established standard of high-quality notoginseng materials.Finally,quality traceability system of notoginseng was finished,which safeguarded the controllable quality.This composite technology system offers references for the cultivation of other Chinese herbal medicines.
ABSTRACT
Panax notoginseng (BurK.) F.H.Chen is a traditional Chinese medicinal material with a time-honored history of cultivation.There are a series of problems,such as high pesticide residues,serious disease and pest,and continuous cropping obstacles in the process of the cultivation of notoginseng.Pollution-free cultivation is an effective strategy for the sustainable development of notoginseng industry.We herein summarized three points of the pollution-free cultivation of notoginseng in this review.The standard of lands suitable for the cultivation of notoginseng was established on the basis of the analysis of medicinal plants around global producing areas.The integrated measures of soil improvement were put forward by cfficient rotation and soil disinfection with new varieties breeding combined with the management of water,light and fertilization,and the safe and low-toxic methods of disease and pest control.Additionally,the mode of wild tending should be carried out when the marker-assisted breeding of new varieties was developed,and the platform of comprehensive disease and pest control was founded.Above-mentioned points can effectively perfect and optimize the pollution-free cultivation of notoginseng and promote sustainable development of notoginseng industry.
ABSTRACT
This study analyzed the pesticide residue and heavy metal contents in Panaxnotoginseng (Burk.) F.H.Chen to provide the basis for the quality criterion of pollution-freemedicinal materials and slices of notoginseng.We randomly collected 100 samples of notoginseng from farmer's markets,producing areas of notoginseng and internet markets.We entrusted the third-party authoritative testing institutions to detect 203 items of the pesticide residues and 4 items of heavy metals.According to relative standards of Japan,Korea,the United States and the European Union,we analyzed and summarized the data in this study.We confirmed the 25 species of pesticides with high operating frequency and detection rate and the limited amount index of 4 heavy metals.In conclusion,these results enriched the limited amount index of the pesticide residues and heavy metal contents based on the previous notoginseng standard system serving as the quality criterion of pollution-free notoginseng,which was applicative and operable.