不同保鲜剂处理对鲜切库尔勒香梨品质的影响  

Effects of Different Preservatives on the Quality of Fresh-Cut Korla Fragrant Pears

作　　者：白雪蓉 周芳艳 张绍铃[2] 耿新丽 郑贺云 蒲云峰[1] 李婕 任晓镤[1] 谢兵 王利斌 BAI Xuerong;ZHOU Fangyan;ZHANG Shaoling;GENG Xinli;ZHENG Heyun;PU Yunfeng;LI Jie;REN Xiaopu;XIE Bing;WANG Libin(College of Food Science and Engineering/Corps Key Laboratory of Deep Processing Special Agricultural Products in Southern Xinjiang,Tarim University,Alaer 843300,Xinjiang,China;College of Horticulture,Nanjing Agricultural University,Nanjing 210095,Jiangsu,China;Grape and Melon Institute of Xinjiang,Shanshan 838200,Xinjiang,China)

机构地区：[1]塔里木大学食品科学与工程学院/南疆特色农产品深加工兵团重点实验室,新疆阿拉尔843300 [2]南京农业大学园艺学院,江苏南京210095 [3]新疆维吾尔自治区葡萄瓜果研究所,新疆鄯善838200

出　　处：《食品研究与开发》2024年第10期36-43,共8页Food Research and Development

基　　金：新疆生产建设兵团第一师阿拉尔市科技计划项目(2022XX05);塔里木大学校长基金自然科学项目(TDZKBS202305);2023人才发展基金“-天池英才”引进计划青年博士项目(230000343);塔里木大学校长基金(TDZKSS202007);库尔勒香梨种质创新与提质增效兵团重点实验室2021年度开放课题项目(2020DA004-202104)。

摘　　要：为探索不同保鲜剂处理对鲜切库尔勒香梨的保鲜效果,以新疆库尔勒香梨为试材,选用不同保鲜剂(褪黑素、氯化钠、氯化钙、水杨酸)处理,通过测定其理化指标及菌落总数,分析货架期鲜切梨的保鲜效果。结果表明:4种保鲜剂对鲜切梨均具有较好保鲜效果。与对照组相比,4种保鲜剂均能够有效抑制多酚氧化酶活性,减缓鲜切梨褐变,维持鲜切梨可溶性固形物、总酸、总糖、维生素C含量。在所有处理组中,褪黑素处理组和水杨酸处理组可较好地维持鲜切梨的质量和色泽,显著抑制微生物生长,减缓品质下降,能够有效延长鲜切库尔勒香梨的货架期。Fresh-cut Korla fragrant pears were treated with different preservatives(melatonin,sodium chlo-ride,salicylic acid,and calcium chloride).The physiological and biochemical indexes and the total number of colonies were determined to evaluate the effects of different preservatives on the fresh-cut pears in shelf-life.The results showed that the four preservatives had good preservation effects on fresh-cut pears.Compared with the control group,the four preservatives inhibited the activity of polyphenol oxidase,slowed down the brown-ing,and maintained the content of soluble solids,total acids,total sugars,and vitamin C in fresh-cut pears.Among the preservatives,melatonin and salicylic acid could better maintain the weight and color of fresh-cut pears,significantly inhibit microbial growth,and slow down the quality decline,thus effectively prolonging the shelf-life of fresh-cut Korla fragrant pears.

关 键 词：褪黑素 氯化钠 氯化钙 水杨酸 保鲜 鲜切库尔勒香梨 品质 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]