摘要
在双孢菇贮藏的第0天,第4天,第8天,用浓度400μL/L的乙醇对其熏蒸处理以研究乙醇不同处理时间对其品质的影响。结果表明,贮藏前期处理组(第4天)虽然在抑制苯丙氨酸解氨酶(phenylalamine ammonia-lyase,PAL)活性和维持硬度方面效果不如入库前处理(第0天)(P<0.05),但在降低呼吸强度方面效果显著,且在相对电导率、总酚含量、菌落总数、多酚氧化酶(polyphenol oxidase,PPO)、过氧化物酶(peroxidase,POD)活性,维持较高白度值和感官评价等方面则与入库前处理效果相当(P>0.05)。而贮藏后期乙醇处理(第8天)虽能减弱PPO酶活,但是不能有效抑制呼吸强度的加剧,与感官评价有关的白度、硬度,贮藏后期处理组也不能有效维持。因此,如果双孢菇无法进行入库前乙醇处理,贮藏前期处理(第4天)是一种有效的补救措施,但是不建议在贮藏后期才进行处理。
The effect of ethanol fumigation treatment on the quality of Agaricus bisporus after harvest was studied by fumigation treatment on the 0 th,4 th and 8 th day of the storage with an ethanol concentration of 400μL/L.The results showed that compared with pre-storage treatment(day 0),Agaricus bisporus which were treated at early stage of storage(day 4)had a significant effect in reducing respiratory intensity while it is slightly less effective in inhibiting phenylalamine ammonia-lyase(PAL)activity and maintaining hardness in the later storage period(P<0.05).As for relative conductivity,total phenolic content,total number of colonies,polyphenol oxidase(PPO)activity,peroxidase(POD)activity,whiteness and sensory evaluation,there was no significant difference between the two groups.The later storage treatment group(day 8)could not effectively inhibit the increase of respiratory intensity even though it could reduce the PPO enzyme activity.In addition,whiteness and hardness,which connected with sensory evaluation,were not effectively maintained in the later storage treatment group.Therefore,if Agaricus bisporus cannot be used for ethanol fumigation before storage,treatment at an early stage of storage is an effective remedy for preservation,but it is not recommended to treat it at the later stage of storage.
作者
刘锦
李云云
程圣
何欣遥
张敏
LIU Jin;LI Yunyun;CHENG Sheng;HE Xinyao;ZHANG Min(College of Food Science,Food Storage and Logistics Research Center,Southwest University,Laboratory of Quality&Safety Risk Assessment for Argo-products on Storage and Preservation(Chongqing),Mimnistry of Agriculture,Chongqing 400715,China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2020年第4期227-233,共7页
Food and Fermentation Industries
基金
重庆市科委社会事业与民生保障科技创新专项(cstc2015shms-ztzx80010)
关键词
双孢菇
乙醇熏蒸
入库前处理
贮藏前期处理
贮藏后期处理
Agaricus bisporus
ethanol fumigation
pre-storage treatment
early storage treatment
later storage treatment
