摘要
为探究黄果柑果实发育过程中抗坏血酸、谷胱甘肽和有机酸的积累特性及相关性,采用高效液相色谱法测定黄果柑果实有机酸和抗坏血酸的含量。结果表明:黄果柑果实发育过程中抗坏血酸的积累主要以As A为主,含量为21.11~33.73 mg·100g-1;谷胱甘肽的积累以GSH为主,含量为58.99~186.37μmol·L-1;果实中检测出7种有机酸,其中柠檬酸含量最高,为641.10~4 192.85 mg·100g-1,总体呈"降—升—降"趋势。T-As A含量与As A/DHA、GSH/GSSG呈极显著相关,说明As A/DHA和GSH/GSSG氧化还原能力对TAs A的积累和维持有重要作用;T-GSH含量与有机酸组分呈极显著正相关,表明有机酸和T-GSH之间呈相互促进的关系;果实中T-As A和As A含量对主成分的影响程度相对较大;通径分析表明,柠檬酸和草酸与TGSH的直接通径系数最大,说明柠檬酸和草酸对T-GSH的积累作用显著。
To study the accumulation characteristics and correlation of ascorbic acid,glutathione and organic acids in Huangguogan fruit during fruit development,contents of ascorbic acid,glutathione and organic acids in Huangguogan fruit were measured. The results showed that As A was the the main component of ascorbic acid and GSH was the main component of glutathione during the fruit development,their contents were 21. 11-33. 73 and 58. 99-186. 37μmol·L-1,respectively. Seven kinds of organic acids were detected in fruit,among which citric acid content was the highest,in the range of 641. 10-4 192. 85 mg·100 g-1 with the trend of＂down-up-down＂. The results of correlation analysis showed that the correlations of T-As A content to As A/DHA and GSH/GSSG were significant at P 0. 01 level,indicating that the redox capacity of As A/DHA and GSH/GSSG played an important role in the accumulation and maintenance of T-As A. There was a significant positive correlation between the organic acids and organic acids,indicating a mutually reinforcing relationship between these two indicators. Principal component analysis showed that the scores of T-As A and As A were the highest,with a value of 0. 534,indicating that the effects of T-As A and As A onthe principal components were relatively largest. Path analysis showed that the direct path coefficients with citric acid and oxalic acid to T-GSH were maximum and positive,indicating that citric acid and oxalic acid had a significant effect on the accumulation of T-GSH.
作者
代琳
徐媛媛
熊博
黄胜佳
孙国超
汪志辉
DAI Lin;XU Yuanyuan;XIONG Bo;HUANG Shengjia;SUN Guochao;WANG Zhihui(College of Horticulture,Sichuan Agricultural University,Chengdu 611130,China;lnstitute of Pomology and Olericulture,Sichuan Agricultural University,Chengdu 611130,China)
出处
《浙江农业学报》
CSCD
北大核心
2018年第8期1341-1348,共8页
Acta Agriculturae Zhejiangensis
基金
四川省科技厅项目(16NZ0056)
四川省教育厅项目(14CZ0002)
关键词
黄果柑
有机酸
抗坏血酸
谷胱甘肽
主成分分析
通径分析
Huangguogan
organic acid
ascorbic acid
glutathione
principal component analysis
path analysis
