不同产区红枣天然苯甲酸含量调查与分析  

Investigation and Analysis of Natural Benzoic Acid Content of Jujube in Different Production Areas

作　　者：周晓明[1] 苏敏[2] 汤永东 巩志国[2] 宋姣[2] 樊丁宇[1] 朱靖蓉 伍新宇[1] 

机构地区：[1]新疆农业科学院园艺作物研究所,乌鲁木齐830091 [2]新疆出入境检验检疫局,乌鲁木齐830063 [3]天山红林果业农民专业合作社,新疆温宿843100 [4]新疆农业科学院农业质量标准与检测技术研究所,乌鲁木齐830091

出　　处：《新疆农业科学》2017年第9期1707-1712,共6页Xinjiang Agricultural Sciences

基　　金：国家质量监督检验检疫总局科技计划项目"红枣中天然苯甲酸的溯源分析及本底调查"(2015IK288);自治区科研机构创新发展专项资金"新疆红枣营养;功能特征评价与品质分级标准研究"(2016D04016)~~

摘　　要：【目的】研究红枣中天然苯甲酸的含量分布及来源。【方法】采用高效液相色谱法,对全国三个主产区共122批干制红枣采收成熟样品的苯甲酸进行检测分析,同时对红枣果实发育期及贮藏期苯甲酸的变化进行研究。【结果】以干基计算的红枣果实苯甲酸含量普遍低于150 mg/kg,整体在40~50 mg/kg的范围分布较为集中。品种间苯甲酸含量差异较大,骏枣及赞皇大枣明显高于其他品种。骏枣果实成熟过程苯甲酸持续积累,在完熟期达到顶峰。红枣贮藏过程苯甲酸的变化因初始含量的不同有所差异,初始含量较高的贮藏过程变化较大。【结论】初步阐明了红枣果实中天然苯甲酸含量的分布范围,为制订或修订红枣苯甲酸含量的相关标准提供了重要依据。【Objective】In order to find out the distribution and source of natural benzoic acid in jujube.【Method】High performance liquid chromatography（ HPLC） was used to detect and analyze benzoic acid in 122 batches of dry red dates harvested from three major producing areas of China and at the same time,the change of benzoic acid during the fruit development and storage period was studied. 【Result】The content of benzoic acid in jujube fruit calculated by dry basis is generally lower than 150 mg/kg,and the overall distribution in the range of 40-50 mg/kg is more concentrated. The contents of benzoic acid in different varieties were different,and the jujube and Zanhuang jujube were significantly higher than other varieties. Jun-jujube fruit ripening process continued accumulation of benzoic acid,reaching its peak in the end stage. The content of benzoic acid in the storage process varied with the initial content,and the storage process with higher initial content varied greatly.【Conclusion】The distribution range of natural benzoic acid in jujube fruit was preliminarily elucidated. The results have provided an important basis for the formulation or revision of the standard of benzoic acid content in jujube.

关 键 词：红枣 苯甲酸 品种 分布 

分 类 号：S665.1[农业科学—果树学]