摘要
在甜瓜幼果期、膨大期、网纹形成期及采收前48 h的4个时期,分别用浓度为0.05、0.5、5.0 g/L的壳寡糖溶液对甜瓜进行喷施处理,探讨采前喷施不同浓度壳寡糖对其贮藏品质的影响。采后的甜瓜在(7±1)℃,85%RH条件下贮藏,定期测定甜瓜的失重率、果实硬度、可溶性固形物、可滴定酸含量、抗坏血酸含量、发病率和病情指数。结果表明,0.5 g/L壳寡糖处理能较好的抑制甜瓜果实硬度的下降,失重率的上升;能明显的抑制甜瓜可溶性固形物、可滴定酸、VC含量的下降;有效抑制甜瓜果实的发病率和病情指数的增加。
Plants of muskmelon were sprayed with 0.05,0.5,5.0 g/L of oligochitosan at four times of plant melon： young fruit period,fruit enlarging period,netting period and 48h before picking,respectively.The impact of different concentration of oligochitosan treatment on the storage quality of muskmelon was studied.The post-harvest muskmelon were storage at（7±1）℃,85 %RH.The weight-loss of rate,firmness,soluble solids,titratable acid,ascorbic acid content,incidence of disease and disease index of muskmelon fruits were measured regularly.The results showed that the declining of firmness and the increasing rate of weight loss of muskmelon fruit were inhibited by 0.5 g/L of oligochitosan treatment.Besides,the degradation of soluble solids,titratable acid,ascorbic acid content,the incidence of disease and the disease index were efficiently inhibited by 0.5 g/L of oligochitosan treatment.
出处
《食品研究与开发》
CAS
北大核心
2013年第9期103-106,136,共5页
Food Research and Development
基金
科技部
国际科技合作项目.哈密瓜采后生理病及贮运技术(供销链研究)(编号:2009 DFA32160)
关键词
壳寡糖
甜瓜
贮藏品质
oligochitosan
muskmelon
storage quality
