摘要
以红柿"早红"为试材,使用不同体积分数的二氧化碳和乙醇对果实进行脱涩处理,结果表明:室温条件下,30%乙醇处理、40%乙醇处理和80%二氧化碳处理可使柿果中可溶性单宁含量在96 h内降到阀值之下,且乙醇处理较二氧化碳处理能更有效地降低果实中的可溶性单宁含量;同时,在此过程中,柿果中的乙醇脱氢酶ADH酶活性先上升后下降,而多酚氧化酶PPO活性则始终保持上升的趋势.
Fruits of persimmon cv.＇Zaohong＇ were treated with different concentrations of carbon dioxide and alcohol to remove their astringency.It was found that the treatments with 30% alcohol,40% alcohol or 80% carbon dioxide at room temperature reduced astringency to a level below the threshold limit value in 96 hours.The alcohol treatments reduced soluble tannin content more effectively than the carbon dioxide treatment.ADH （alcohol dehydrogenase） activity increased to its peak level and then decreased,while PPO （polyphenol oxidase） activity steadily increased in the treatments.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第12期32-36,共5页
Journal of Southwest University(Natural Science Edition)
基金
福建省科技厅重点项目早熟红柿品种选育与产业化关键技术研究(2008S0054)基金资助
关键词
红柿
脱涩
单宁
乙醇脱氢酶
多酚氧化酶
persimmon
de-astringency
tannin
alcohol dehydrogenase
polyphenol oxidase
