壳聚糖丁香精油生物涂膜保鲜剂对圣女果品质的影响

摘要

将壳聚糖丁香精油涂膜保鲜剂用于圣女果贮藏保鲜，果实在8℃条件下贮藏12 d，对照组果实失重率、腐烂率、可滴定酸含量、Vc含量、PPO活性和感官评价分别为6．45％、17．3％、0．33％、4．36 mg/100g、9．87 U/g和3．80分，而经壳聚糖丁香精油涂膜保鲜剂处理的样品分别为3．12％、4．7％、0．53％、5．93mg/100g、14．87U/g 和6．7分。结果表明，壳聚糖丁香生物保鲜剂可有效抑制鲜圣女果果实的腐烂，较好地保持果实品质，一定程度上可延长货架期。%The application of chitosan coating enriched clove oil in the quality of cherry tomato was investigated .After stored at 8° C for 15 days, the weight loss ratio, decay ratio, vitamin C content, tritatable acidity content, PPO activity and sensory acceptability scores for control samples were 36.45%、17.3%、0.33%,4.36mg/100g、9.87U/g and 3.80 scores,respectively, which were 3.12%, 4.7%、0.53%、5.93mg/100g、14.87U/g and 6.7 scores for the samples treated by chitosan -oil coating respectively .The combined treatment of chitosan coating and clove oil showed lowest microbial growth and could keep the quality of cherry tomato .The shelf life of cherry tomato was extended .