Effects of Sodium Alginate and Chitosan on Lotus Roots Quality and Preservation Effect
LIU Xiao-jing1，2，HUANG Ai-zheng1，3，KANG Yun-yan1，ZHANG Wen-cheng4，CHAI Xi-rong1，YANG Xian1*
1College of Horticulture， South China Agricultural University， Guangzhou 510642， Guangdong， China； 2Jiangmen Plant Protection Co. Ltd.， Jiangmen 529000， Guangdong， China； 3Institute of Agriculture Science of Jiangmen City， Jiangmen 529060， Guangdong， China； 4Zhaoqing City Institute of Agricultural Sciences， Zhaoqing 526070，Guangdong， China
Abstract：This paper is to study the effects of different film coating antistaling agent〔sodium alginate（SA）and chitosan（CTS）〕on physiological metabolism and quality of lotus roots（Nelumbo nucifera Gaertn.） during postharvest storage at room temperature（25 ℃）．The results showed that 2 kinds of film coating antistaling agent（SA，CTS） treatments could effectively prevent lotus root surface browning，reduce weight loss，and significantly inhibit contents of VC and soluble sugar decrease，and also cell membrane permeability increase. Among all treatments，1.0% SA had the best performance，
1.25% CTS and 1.5% CTS performed better in inhibiting decrease of VC and soluble sugar contents of lotus root.
