摘要
以半乳甘露聚糖和黄原胶为涂膜基质,山梨酸、CaCl2、甘油为成膜助剂,配制成复合涂膜保鲜剂,研究了常温(28~32℃,相对湿度68%~86%)下该复合涂膜保鲜剂对杨梅贮藏后3种关键酶POD、PPO、PAL酶活性变化的影响。结果表明:常温下多糖复合涂膜保鲜剂涂膜贮藏的杨梅与对照组相比,使PPO、POD、PAL酶活性处于较低的水平,延缓了果实的衰老,从而延长了货架期。
The effects of compound coating antistaling agent of polysaccharide treatment in storage on POD、PPO and PAL enzymatic activity of Chinese bayberry under 28~32℃ and 68%~86% relative humidity conditions were investigated.The antistaling agent was composed of galactomannan and xanthan gum for the coating matrix,glycerin and sorbic acid and CaCl2 as film-forming additives.The results showed that compared with the control group at room temperature,the three kinds of key enzyme PPO,POD and PAL enzyme activity were maintained at a relatively low level,and the senescence process is restrained during the storage,the storage period of Chinese bayberry at room temperature and the shelf life was extended.
出处
《包装与食品机械》
CAS
2012年第2期10-16,共7页
Packaging and Food Machinery
基金
国家星火计划(2006EA780088)
广东省科技厅计划项目(2007B080701046)
冻土工程国家重点实验室自主基金(SKLFSE-ZY-05)
关键词
半乳甘露聚糖
复合涂膜保鲜剂
杨梅
贮藏
POD、PPO和PAL
galactomannan
compound coating antistaling agent
Chinese bayberry
storage
POD
PPOand PAL enzyme activity