摘要
以山竹果为材料,研究了采后涂膜处理常温贮藏(1%壳聚糖和1%海藻酸钠)对山竹果壳细胞代谢物及果肉品质的影响。结果表明:采后涂膜处理常温贮藏中山竹果壳中超氧阴离子、膜脂过氧化产物丙二醛(MDA)、过氧化氢的含量随着贮藏时间呈上升趋势,贮藏15d时,常温、1%壳聚糖、1%海藻酸钠涂膜处理的丙二醛含量比初期分别增加了94.4%、67.0%和38.9%。果壳代谢物可溶性糖和总酚含量均先上升后下降,2种涂膜处理均能有效延缓果壳细胞代谢物的增加。其中1%壳聚糖涂膜处理能够显著延缓果肉VC和总糖含量的下降,减慢营养物质的消耗,抑制果实的腐烂。
The effect of different postharvest treatments on mangosteen fruit at room temperature （1% sodium alg- inate and 1% chitosan coating） on cell metabolites and lignification substrate of mangosteen shell was studied. The re- sults show that superoxide anion, malondialdehyde （MDA） and hydrogen peroxide content of mangosteen shell in- creased during storage. At the 15 days of storage, malondialdehyde content increased by 94.4% , 67.0% and38.9% after the treatment of 1% sodium alginate and 1% chitosan coating treatment. Soluble sugar and total phenolic content were first increased and then dropped. The coating treatment can significantly reduce the cell metabolites of mango- steen shell. It also reduced Vc and total sugar content, slow down nutrient consumption and inhibit the decay of fruit.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2013年第2期213-217,共5页
Food and Fermentation Industries
基金
广东省自然科学基金项目(10451022501005679)
关键词
山竹果
采后处理
细胞代谢物
果肉品质
mangosteen fruit, harvest treatment, cell metabolites, pulp quality
