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中国精品科技期刊2020
水溶性壳聚糖稀土配合物对西红柿保鲜及农药残留降解的研究[J]. 食品工业科技, 2013, (08): 331-334. DOI: 10.13386/j.issn1002-0306.2013.08.077
引用本文: 水溶性壳聚糖稀土配合物对西红柿保鲜及农药残留降解的研究[J]. 食品工业科技, 2013, (08): 331-334. DOI: 10.13386/j.issn1002-0306.2013.08.077
Study on water-soluble chitosan RE complexes to the preservation of tomatoes and the degradation of pesticide residues[J]. Science and Technology of Food Industry, 2013, (08): 331-334. DOI: 10.13386/j.issn1002-0306.2013.08.077
Citation: Study on water-soluble chitosan RE complexes to the preservation of tomatoes and the degradation of pesticide residues[J]. Science and Technology of Food Industry, 2013, (08): 331-334. DOI: 10.13386/j.issn1002-0306.2013.08.077

水溶性壳聚糖稀土配合物对西红柿保鲜及农药残留降解的研究

Study on water-soluble chitosan RE complexes to the preservation of tomatoes and the degradation of pesticide residues

  • 摘要: 目的:探索研究水溶性壳聚糖及其稀土配合物对樱桃西红柿的保鲜和农药残留的降解作用。方法:用浓度为1%的水溶性壳聚糖、水溶性壳聚糖铈配合物和水溶性壳聚糖镧配合物水溶液为膜材料,涂膜处理樱桃西红柿,通过好果率、pH变化、失重率和对农药(氧乐果)残留降解的效果考察水溶性壳聚糖及其稀土配合物对樱桃西红柿的保鲜和农药残留的降解作用。结果:处理组各项指标均优于对照组。其中铈配合物最好,镧配合物次之,水溶性壳聚糖最低。结论:水溶性壳聚糖及其稀土配合物对樱桃西红柿有保鲜作用,壳聚糖稀土配合物可模拟降解酶,对有机磷类农药残留有一定的降解效果,其中水溶性壳聚糖铈配合物的降解效果最好,降解度可达到74.09%。 

     

    Abstract: Objective:The fresh-keeping effect and pesticide residues degradation effect of water-soluble chitosan and water-soluble chitosan-RE complexes on cherry tomatoes were studied. Methods:Cherry tomatoes were coated by water-soluble chitosan (1%) , cerium complex (1%) and lanthanum complex (1%) solution. The good fruit rate, the pH changes, the weight loss rate and the degradation effect of pesticides (omethoate) were investigated to study fresh-keeping effect and pesticide degradation effect on Cherry tomatoes. Results:Indexes of the treatment group were better than the control group. Cerium complex was the best, and water-soluble chitosan followed by lanthanide complex was the lowest. Conclusion:Soluble chitosan and its rare earth complexes could keep fresh cherry tomatoes. Chitosan lanthanide complexes could simulate degrading enzyme to degrade organophosphorus pesticide (omethoate) residues. The degree of degradation of water-soluble chitosan cerium complex could reach 74.09% which was the best.

     

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