食品与发酵工业2024，Vol.50Issue(24)：123-132,10.DOI:10.13995/j.cnki.11-1802/ts.038468
紫球藻多糖涂膜处理对南湖菱的保鲜作用
Preservation effect of Porphyridium cruentum polysaccharide coating treatment on Trapa acornis Nakano
摘要
Abstract
Trapa acornis Nakano is a unique aquatic economic plant in Jiaxing city,Zhejiang province.It has a sweet and delicious taste and is nutritionally rich.However,it is highly susceptible to rot and deterioration after harvesting.To investigate the preservation effect of the coating of Porphyridium cruentum polysaccharide on Trapa acornis Nakano during storage,this study used Trapa acornis Naka-no fruits as the test material.Coating treatments with Porphyridium cruentum polysaccharide at concentrations of 5 mg/mL and 10 mg/mL were applied,and 11 quality and physiological indicators were meticulously measured and analyzed at different storage periods.Results in-dicated that the Porphyridium cruentum polysaccharide coating reduced the weight loss of Trapa acornis Nakano fruits,delayed the decline in key components such as soluble sugars,soluble proteins,total phenols,and vitamin C,maintained a higher titratable acid content,and inhibited the accumulation of malondialdehyde and antioxidant enzyme activity during fruit storage.Principal component analysis simplified various indicators into two principal components,with a cumulative variance contribution rate of 86.364％.A comprehensive evaluation model was established,which revealed a strong correlation among soluble sugar content,polyphenol oxidase activity,peroxidase activity,malondialdehyde content,and weight loss rate.The group with a 5 mg/mL polysaccharide coating showed the best comprehensive score,contributing to the preservation of Trapa acornis Nakano fruits during storage.This study provides data and theoretical support for the appli-cation of Porphyridium cruentum polysaccharide in food storage and preservation,laying the theoretical foundation for the transportation and industrialization of Trapa acornis Nakano.关键词
南湖菱/紫球藻多糖/涂膜/保鲜/主成分分析Key words
Trapa acornis Nakano/Porphyridium cruentum polysaccharide/coating/preservation/principal component analysis引用本文复制引用
杨宁,李坤,章真,陈静芸,吴世林,陈冉,姚丽萍,刘晓军,张荣庆..紫球藻多糖涂膜处理对南湖菱的保鲜作用[J].食品与发酵工业,2024,50(24):123-132,10.基金项目
浙江省基础公益研究计划项目(LGN22C190010) （LGN22C190010）
浙江清华长三角研究院青年业务骨干教育培养基金(ZJY-2020-A-NS-08) （ZJY-2020-A-NS-08）
