摘要
以软溶质型桃"雨花三号"和硬溶质型桃"加纳岩"果实为试材,采用高效液相色谱法测定细胞壁多糖组分分子质量分布变化。结果表明:CDTA、Na2CO3和KOH组分多糖的分子质量在两种桃果实成熟软化过程中都发生下降,说明细胞壁多糖在桃果实成熟过程中发生了解聚,高分子质量物质向低分子质量物质转变。但两种溶质型桃在多糖组分分子质量的大小、各分子质量组分含量及出现解聚的时间都明显不同,说明多糖组分的解聚方式对桃果实软化过程有一定影响。
In this study,cell wall polysaccharides from peach cultivars ‘Yuhua No.3’ and ‘Jianayan’ were measured by HPLC to investigate changes in molecular weight distribution during fruit ripening and softening.Both cultivars exhibited a declining trend in the molecular weights of CDTA,Na2CO3 and KOH polysaccharide fractions during fruit ripening and softening,indicating the depolymerization of cell wall polysaccharides and the generation of low molecular weight materials.However,apparent differences in the molecular weights,amounts and time of occurrence of depolymerization were found for the two peach cultivars,suggesting that peach softening can be affected by the pattern of depolymerization of polysaccharides.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2013年第5期10-16,共7页
Food Science
基金
国家自然科学基金项目(31101586)
江苏省自然科学基金项目(BK2010310)
江苏省高校自然科学研究基金项目(10KJB550004)
江苏省政府留学基金项目
关键词
桃
成熟软化
细胞壁多糖
分子质量
peach
ripening and softening
cell wall polysaccharides
molecular weight
作者简介
阚娟（1980-），女，讲师，博士，研究方向为果蔬采后生理与分子生物学。E—mml：kanjuan@yzu．edu．cn
通信作者：金昌海（1963-），男，教授，研究方向为果蔬采后生理与分子生物学。E-mail：chjin@yzu．edu．cn
