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壳聚糖涂膜对鲜切苹果品质的影响
引用本文:邓菡菲,唐慧,田沛霖,杨鑫,贾彩凤.壳聚糖涂膜对鲜切苹果品质的影响[J].食品工业科技,2010(4).
作者姓名:邓菡菲  唐慧  田沛霖  杨鑫  贾彩凤
作者单位:华东师范大学生命科学学院,上海,200241
基金项目:华东师范大学2008年度大夏大学生科研基金项目(121)
摘    要:以山东红富士苹果为原材料,研究了不同浓度复合的壳聚糖、抗坏血酸及柠檬酸对鲜切苹果的外观和内部品质的影响。采用L9(34)正交实验设计,测定了贮藏过程中各组鲜切苹果的腐烂率、色泽、pH、可滴定酸、还原性糖等指标的变化情况。根据模糊权重法对贮藏4d的鲜切苹果外观和内部品质进行了综合评定。结果表明:选用2.0%柠檬酸、1.0%壳聚糖配制涂膜液和0.5%抗坏血酸溶液作为护色液,对鲜切苹果具有良好的保鲜效果。

关 键 词:鲜切  壳聚糖  涂膜保鲜  正交实验  

Effect of chitosan coating on quality of fresh-cut apples
DENG Han-fei,TANG Hui,TIAN Pei-lin,YANG Xin,JIA Cai-feng.Effect of chitosan coating on quality of fresh-cut apples[J].Science and Technology of Food Industry,2010(4).
Authors:DENG Han-fei  TANG Hui  TIAN Pei-lin  YANG Xin  JIA Cai-feng
Affiliation:DENG Han-fei,TANG Hui,TIAN Pei-lin,YANG Xin,JIA Cai-feng(School of Life Science,East China Normal University,Shanghai 200241,China)
Abstract:Using Shandong Red Fuji Apple as material,the effects of chitosan, ascorbic acid and citric acid on quality of fresh-cut apples were studied in the paper.The factors and levels were designed by L_9(3~4) orthogonal test, and the characteristics of fungal decay,color, pH,titratable acidity and reducing sugar content of apple slices were measured regularly.Assessment indicators of apple slices after 4 days' storage were determined by the fuzzy weight analytical method.The results showed that the optimum treatment was respectively as follows: 1.0% chitosan dissolved in 2.0% citric acid sulotion as preservative and 0.5% ascorbic acid solution as color fixative.
Keywords:fresh-cut  chitosan  coating storage  orthogonal test  
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