食品与发酵工业 >

2022 , Vol. 48 >Issue 5: 219 - 226

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.028257

研究报告

PBAT/PLLA薄膜对白鳞蘑菇的保鲜效果

  • 王莉梅 ,
  • 陆浩 ,
  • 张靳 ,
  • 胡健 ,
  • 梁乌日图白音 ,
  • 董同力嘎
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  • 1(内蒙古农业大学 食品科学与工程学院,内蒙古 呼和浩特,010018)
    2(内蒙古自治区农牧业科学院,内蒙古 呼和浩特,010031)
博士研究生,助理研究员(董同力嘎教授为通信作者,E-mail:dongtlg@163.com)

网络出版日期: 2022-04-06

基金资助

内蒙古自治区自然科学面上基金项目(2019MS03062)

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Preservation effect of PBAT/PLLA film on Agaricus bernardii

  • WANG Limei ,
  • LU Hao ,
  • ZHANG Jin ,
  • HU Jian ,
  • LIANG Uritubaiyin ,
  • DONG Tungalag
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  • 1(Inner Mongolia Agricultural University,Hohhot 010018,China)
    2(Inner Mongolia Academy of Agricultural ＆ Animal Husbandry Sciences,Hohhot 010031,China)

Online published: 2022-04-06

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摘要

探讨添加不同质量分数(10%、20%、30%)左旋聚乳酸[poly(L-lactic acid),PLLA]的聚己二酸/对苯二甲酸丁二酯[poly(butylene adipate terephthalate),PBAT](PBAT/PLLA)气调薄膜对白鳞蘑菇的保鲜效果。贮藏条件为4 ℃,相对湿度90%,贮藏期间测定包装内气体组分和白鳞蘑菇相关理化指标。结果表明,PBAT/PLLA 30%共混薄膜能够使包装内形成平衡状态低O2(0.01%~0.02%)、高CO2(4.85%~5.15%)环境,能较好地保持硬度(9.00 kg/cm2),贮藏后期可溶性蛋白含量为0.35 mg/g、可溶性糖0.85%、总酚9.14 mg/g,延缓营养成分的下降速度,减缓失重率和丙二醛的上升速度,贮藏期15 d内能保持较好的感官品质和营养品质。综合各项指标表明,生物可降解PBAT/PLLA 30%气调包装处理可以维持白鳞蘑菇贮藏品质并延缓采后衰老过程。

关键词： 白鳞蘑菇; 保鲜; 聚己二酸/对苯二甲酸丁二酯; 左旋聚乳酸

本文引用格式

王莉梅 , 陆浩 , 张靳 , 胡健 , 梁乌日图白音 , 董同力嘎 . PBAT/PLLA薄膜对白鳞蘑菇的保鲜效果[J]. 食品与发酵工业, 2022 , 48(5) : 219 -226 . DOI: 10.13995/j.cnki.11-1802/ts.028257

Abstract

The aim of this study was to investigate the preservation effect of poly (butylene adipate terephthalate) /poly(L-lactic acid) (PBAT/PLLA) film added with different mass fractions of PLLA (10%, 20%, 30%) on Agaricus bernardii. The storage condition was 4 ℃ and with a 90% relative humidity. The gas composition in packaging bag and physical indexes of A.bernardii were measured during storage. The results showed that an equilibrium state of low O2 (0.01%-0.02%) and high CO2(4.85%-5.15%) levels in PBAT/PLLA 30% film could keep a high level of hardness(9.00 kg/cm2)during storage. The contents of soluble protein, soluble sugar and total phenol were 0.35 mg/g, 0.85% and 9.14 mg/g respectively, which could help to delay the decline of nutrients, and inhibit the increase of weight loss rate and malondialdehyde speed. The quality index of A.bernardii packed in PBAT/PLLA 30% film remained a good condition and kept the market value within 15 days. Comprehensive indicators showed that the biodegradable PBAT/PLLA 30% modified atmosphere packaging treatment could maintain the storage quality of A.bernardii and delay the postharvest aging process.

Key words： Agaricus bernardii; preservation; poly(butylene adipate terephthalate); poly(L-lactic acid)

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