黄连、连翘提取物对鲜切莴苣保鲜效果的研究  

Research on the Preservation Effect of Coptis chinensis and Forsythia suspensa on Fresh-cut Lettuce

作　　者：陈洲[1] 王婷婷[1] 姚颖斐[1] 李盈盈[1] 刘洪霞[1] 李大鹏[1] 

机构地区：[1]山东农业大学食品科学与工程学院,泰安271018

出　　处：《食品工业》2013年第11期180-183,共4页The Food Industry

基　　金：国家科技支撑计划资助项目(2012BAK17B05)

摘　　要：分析黄连、连翘提取物在鲜切莴苣保鲜中的作用机理，为复方型植物源保鲜剂的开发提供理论依据。研究了黄连、连翘及其配伍药对提取液对鲜切莴苣的保鲜效果，通过测定褐变度、PPO活性、PODSg性、纤维素酶活性、纤维素含量、木质素含量等指标并结合感官评定判断中药提取液对鲜切莴苣的保鲜效果。结果表明，中药处理抵制PPO、POD活性的上升，减少了纤维素、木质素的合成，维持了鲜切莴苣的原有品质，使其货架期延长4-d6。黄连、连翘提取液对鲜切莴苣的保鲜作用主要是通过抑制PPO、POD和纤维素酶活性减缓褐变和降低木质化现象。Analyze the mechanism of Coptis perforatum extract in the preservation of flesh-cut lettuce in order to provide a theoretical basis for the development of the compound type of plant origin preservative. The preservation effect of the extracts of Coptis chinensis, Forsythia suspensa and their prescriptions on flesh-cut lettuce was evaluated by degree of browning, PPO activity, POD activity, cellulase activity, cellulose content, lignin content as well as sensory evaluation. The results showed that the traditional Chinese medicine treatment inhibited the increase of PPO and POD activity. It reduced the generation of cellulose and lignin, the treatment helped maintain the original quality of flesh-cut lettuce, and extended the shelf life for 4-6 d. The extracts of flesh-cut Coptis chinensis, Forsythia suspensa and their prescriptions preserve flesh-cut lettuce mainly by inhibiting PPO, POD and cellulase activity, slowing browning and reducing lignifications.

关 键 词：黄连 连翘 鲜切莴苣 保鲜 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]