摘要
为延长杏鲍菇贮藏期,以杏鲍菇为原料,采用不同方式贮藏杏鲍菇(2℃+PE贮藏为对照组;苹果多酚壳聚糖复合膜+2℃+PE贮藏为处理组A;3.6 kJ/m^2紫外照射+苹果多酚壳聚糖复合膜+2℃+PE贮藏为处理组B).研究表明,与对照组相比,处理组A、处理组B可有效抑制杏鲍菇呼吸强度、失重率、多酚氧化酶(poly-phenol oxidase,PPO)活性、丙二醛(malondialdehyde,MDA)含量升高,同时显著减缓其Vc含量、超氧化物歧化酶(superoxide dismutase,SOD)活性、可溶性蛋白含量降低(P<0.05);贮藏第15天,处理组B呼吸强度、失重率、PPO活性、MDA含量较对照组分别下降了70.07%、62.52%、40.89%、23.85%,而其Vc含量、SOD活性、可溶性蛋白含量分别为对照组的1.93、1.28、1.64倍;7个指标可简化为2个主成分,第1主成分反映杏鲍菇营养成分及抗氧化能力变化程度,第2主成分反映其呼吸作用程度,其方差总贡献率为96.225%,为杏鲍菇低温贮藏提供数据支持.
In order to prolong the storage period of Pleurotus eryngii ,fresh Pleurotus eryngii was stored in different ways (2 ℃+ PE storage as control,apple polyphenol chitosan composite membrane + PE storage at 2 ℃ as treatment group A,and 3.6 kJ/m^2 UV irradiation + apple polyphenol chitosan composite membrane + PE storage at 2 ℃ as treatment group B). The results showed that compared with the control group,treatment group A and group B could effectively inhibit the increases in respiratory intensity,weight loss rate,PPO activity,and MDA content of Pleurotus eryngii ,and significantly inhibited the reductions in V C content,SOD activity and soluble protein content ( P <0.05). On the 15 th day of storage,the respiratory intensity,weight loss rate,PPO activity and MDA content of treatment group B decreased by 70.07%,62.52%,40.89% and 23.85%,respectively,while the V C content,SOD activity and soluble protein content were 1.93,1.28 and 1.64 times of the control,respectively. Overall,these results provide a good theoretical basis for low temperature storage of Pleurotus eryngii .
作者
刘蒙佳
周强
张宝善
LIU Mengjia;ZHOU Qiang;ZHANG Baoshan(College of Life Science and Chemistry,Fujian Normal University Minnan Science and Technology Institute,Quanzhou 362332,China;College of Food Engineering and Nutritional Science,Shaanxi Normal University,Xi’an 710119,China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2019年第16期195-200,共6页
Food and Fermentation Industries
基金
福建省高等学校服务产业特色专业食品科学与工程(SJZY-2016-03)
泉州市高等学校中青年学科(专业)带头人培养计划(泉教高(2018)1号)
关键词
苹果多酚
壳聚糖
短波紫外线
低温贮藏
杏鲍菇
品质
主成分分析
apple polyphenol
chitosan
short-wave UV irradiation
low temperature storage
Pleurotus eryngii
quality
principal component analysis
