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作 者:徐丽珊[1] 林颖[1] 张姚杰 施恩琪 王利枝[1] 王慧敏[1]
机构地区:[1]浙江师范大学化学与生命科学学院,浙江金华321004
出 处:《浙江师范大学学报(自然科学版)》2017年第2期196-200,共5页Journal of Zhejiang Normal University:Natural Sciences
基 金:浙江省公益技术应用项目(2010C34002)
摘 要:通过测定32种无毒植物提取液的抗氧化和抑制多酚氧化酶的活性,从中筛选到高活性植物材料分别为一年蓬(Erigeron annuus)和湿地松(Pinus elliottii)松针,提取得到一年蓬提取物(EAE)和湿地松松针提取物(PEE).通过对EAE和PEE不同配比的活性测试,制备了分别针对鲜切苹果和马铃薯的2种植物源防褐变剂(防褐变剂Ⅰ和Ⅱ),其配比m_(PEE)∶m_(EAE)分别为3∶1和1∶2.经验证,2种植物源防褐变剂对鲜切苹果和马铃薯具有良好的防褐变效果.The market for fresh-cut fruits and vegetables grew rapidly in and vegetables deteriorated fast due to cut-surface browning. Polyphenol recent decades. However, fresh fruits oxidase ( PPO ) and oxidative deterioration are responsible for the enzymatic browning of many fruits and vegetables. On the other hand, increased needs of ecological safe natural compounds had motived many studies on the browning inhibition. Therefore, it was aimed to assess antioxidant activity and PPO inhibition of the plant extract from 32 different species. The Erigeron annuus extract (EAE) and Pinus elliottii extract (PEE) possesses the highest antioxidant effect and PPO inhibition activity, respectively. Different mass ratio of EAE to PEE ( g : g ) were obtained to evaluate the biological activities of above-mentioned contents. The data indicated that ropeE : mEaE = 3 : 1 , named anti- browning agent I , and ropeE : mEAE = 1 : 2, named antibrowning agent Ⅱ, were the most suitable mass ratio for apple and potato on inhibiting enzymatic browning. These results suggested that EAE and PEE could be used as new natural resource for antibrowning agents.
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