Chitosan acetate as an active coating material and its effects on the storing of Prunus avium L.
In this article, chitosan acetate (CA) was prepared by the method of solid-liquid reaction. CA was a stable faint yellow powder with water solubility. CA kept the same backbone in the chemical structure as the raw material of chitosan, and it also had the similar antibacterial properties with chitosan. CA could form a coating film on the outside surface of the sweet cherries, could effectively retard the loss of the water, titratable acidity, and ascorbic acid of sweet cherries, and could induce a significant increase in the peroxidase and catalase activities in the fruit. The CA coating could also increase the ratio of the total soluble solids and titratable acidity in the fruit. The application of CA effectively maintained quality attributes and extended postharvest life of the sweet cherries. The results revealed that the CA salts had potential application in active edible coating materials in the storage of fresh fruit.
Dang
Qi Feng
QF
College of Marine Life Science, Ocean Univ. of China, Qingdao 266003, P.R. China.
Yan
Jing Quan
JQ
Li
Yan
Y
Cheng
Xiao Jie
XJ
Liu
Cheng Sheng
CS
Chen
Xi Guang
XG
D000085:Acetates / Q000032:analysis*; D000328:Adult; D001205:Ascorbic Acid / Q000378:metabolism; D002374:Catalase / Q000378:metabolism; D004156:Catechol Oxidase / Q000378:metabolism; D048271:Chitosan / Q000032:analysis*; D005260:Female; D005511:Food Handling / Q000379:methods; D005519:Food Preservation / Q000379:methods*; D006801:Humans; D008297:Male; D009195:Peroxidase / Q000378:metabolism; D010650:Phenylalanine Ammonia-Lyase / Q000378:metabolism; D027861:Prunus / Q000737:chemistry / Q000201:enzymology* / Q000378:metabolism*; D012677:Sensation
D000085:Acetates; D048271:Chitosan; D004156:Catechol Oxidase; D002374:Catalase; D009195:Peroxidase; D010650:Phenylalanine Ammonia-Lyase; D001205:Ascorbic Acid