Effects of Different Preservatives on the Quality of Centennial Seedless Grapes under Cold Storage

Journal of Chuxiong Normal University ›› 2020, Vol. 35 ›› Issue (3): 101-105.

• Chemistry • Previous Articles Next Articles

Effects of Different Preservatives on the Quality of Centennial Seedless Grapes under Cold Storage

LI Yang, WANG Yanjun, YANG Junmei, LI Yashan, NAN Lijun, MA Xiuhong, CUI Changwei

School of Chemistry and Life Sciences,Chuxiong Normal University,Chuxiong,Yunnan Province 675000

Received:2019-10-23 Online:2020-05-20 Published:2020-12-28

Abstract

Abstract: The Centennial seedless grape was used as the experimental material to study and screen out the preservatives suitable for the cryogenic storage of centennial seedless grapes.Chitosan,calcium chloride,and sodium metabisulfite were made up into the corresponding concentration solution to dispose the grapes,which were then stored in the refrigerator (5-8 °C).The control group was handled with distilled water.The soluble solids,total acid,reducing sugar,vitamin C,rot rate,the rate of healthy fruit and polyphenol oxidase activity index were measured every two days.The results showed that 2% sodium metabisulfite was more suitable for the preservation of centennial seedless grapes under refrigerated conditions.Under the preservative,the decreasing rate of acid content and reducing sugar content slowed down,which reduced the rot rate of centennial seedless grapes effectively,increased the rate of healthy fruit of centennial seedless grapes,and delayed the aging of the fruit.

Key words: Centennial Seedless grape, chitosan, sodium metabisulfite, calcium chloride, preservation

CLC Number:

S663.1

LI Yang, WANG Yanjun, YANG Junmei, LI Yashan, NAN Lijun, MA Xiuhong, CUI Changwei. Effects of Different Preservatives on the Quality of Centennial Seedless Grapes under Cold Storage[J]. Journal of Chuxiong Normal University, 2020, 35(3): 101-105.

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Effects of Different Preservatives on the Quality of Centennial Seedless Grapes under Cold Storage

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