[1]罗淑芬,胡花丽,周宏胜,等.不同温度条件下薄膜包装对西兰花采后品质的影响[J].江苏农业学报,2019,(02):420-428.[doi:doi:10.3969/j.issn.1000-4440.2019.02.024]
　LUO Shu-fen,HU Hua-li,ZHOU Hong-sheng,et al.Effects of packaging films on postharvest quality of broccoli at different temperatures[J].,2019,(02):420-428.[doi:doi:10.3969/j.issn.1000-4440.2019.02.024]
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不同温度条件下薄膜包装对西兰花采后品质的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年02期
页码:
420-428
栏目:
加工贮藏·质量安全
出版日期:
2019-04-30

文章信息/Info

Title:
Effects of packaging films on postharvest quality of broccoli at different temperatures
作者:
罗淑芬1; 胡花丽1; 周宏胜1; 张雷刚1; 李鹏霞1; 2
(1.江苏省农业科学院农产品加工研究所，江苏南京210014；2.江苏省高效园艺作物遗传改良重点实验室，江苏南京210014)
Author(s):
LUO Shu-fen1; HU Hua-li1; ZHOU Hong-sheng1; ZHANG Lei-gang1; LI Peng-xia1; 2
(1.Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;2.Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing 210014, China)
关键词:
西兰花; 薄膜包装; 贮藏; 品质
Keywords:
broccoli; packaging films; storage; quality
分类号:
TS255.3
DOI:
doi:10.3969/j.issn.1000-4440.2019.02.024
文献标志码:
A
摘要:
为探讨不同温度条件下薄膜包装对西兰花采后品质的影响，以品种优秀西兰花为研究对象，通过在（20±1） ℃和 80%～90%相对湿度下，采用5种薄膜[聚偏二氯乙烯(P1)、高密度聚乙烯（P2）、聚乙烯（P3）、聚氯乙烯（P4）、纳米银薄膜（P5）]对西兰花进行包装，以感官评价为指标筛选出最适宜西兰花包装的薄膜；再以此最适薄膜材料于（10±1） ℃、（15±1） ℃、（20±1） ℃温度下分别对西兰花进行包装，研究不同温度条件下薄膜包装对西兰花品质、营养成分、抗氧化酶活性及采后菌落总数的影响。结果表明：以感官评价为指标筛选出的最适宜西兰花包装的薄膜为P5；与对照组相比，纳米银薄膜袋在（10±1） ℃,（15±1） ℃,（20±1） ℃条件下，皆可有效降低西兰花的呼吸速率，延缓失水及叶绿素降解，维持其组织较高的VC和可溶性蛋白质含量，并有效抑制其细胞膜透性及丙二醛含量的增加，同时不同程度地保持西兰花组织较高的二苯基苦基苯肼（DPPH）、·OH、O2·-等的清除率和超氧化物歧化酶（SOD）、过氧化氢酶（CAT）活性；此外纳米银薄膜袋有效抑制了西兰花组织过氧化物酶（POD）活性，并通过抑制其表面菌落生长以减少组织亚硝酸盐的生成，从而防止西兰花的腐烂。因此，纳米银薄膜袋有利于不同温度下西兰花采后品质的保持。
Abstract:
To investigate the effects of different packaging films on postharvest quality of broccoli at different storage temperature, the Youxiu broccolis were selected as experimental materials. The fresh broccolis were packaged with five packaging films, including polyvinylidene chloride(P1), high density polyethylene(P2), polyethylene(P3), polyvinyl chloride(P4), films containing nano-Ag(P5) at (20±1) ℃ and the relative humidity of 80%-90%. The packaging of P5 showed the best effect on keeping the freshness of broccoli by evaluating the sensor quality of the sample. Then, the broccolis were packaged with P5 at different temperatures, including (10±1) ℃, (15±1) ℃ and (20±1) ℃, and the effects of packaging films on quality, nutrient composition, antioxidant enzyme activity and postharvest colony count of broccoli were studied. Compared with control, the nano-Ag packaging film could significantly inhibit the respiration rate, degradation of chlorophyll and weight loss, and keep the contents of vitamin C and soluble protein at different temperatures. In addition, the nano-Ag packaging film delayed the increase of cell membrane permeability and malondialdehyde content in broccoli, and maintained the scavenging rates of diphenylpicryl phenylhydrazine (DPPH), ·OH and O2·-, as well as the activities of superoxide dismutase (SOD) and catalase (CAT) at different temperatures. What’s more, the peroxidase (POD) activity was increased and the growth rate of bacterial colonies at the surface of broccoli was inhibited by the nano-Ag packaging film, thus, resulted in less production of nitrite and alleviated decay of broccolis. Therefore, the nano-Ag packaging film can effectively maintain the postharvest quality of broccolis at different temperatures.

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备注/Memo

备注/Memo:
收稿日期：2018-06-01 基金项目：江苏省农业科技自主创新基金项目[CX（18）2028] ；苏北科技发展计划——科技富民强县项目（SZ-XZ2017001） 作者简介：罗淑芬（1988-），女，江西宜春人，硕士，助理研究员，主要从事果蔬采后生理生化研究。(E-mail)luoshufen666@126.com 通讯作者：李鹏霞，(E-mail)pengxiali@126.com
更新日期/Last Update: 2019-05-05