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食品研究与开发:2016,37(1):45-47
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苜蓿中维生素C含量测定及变化规律
华晶忠1,刘笑笑2,武巍2,魏春雁2,*
(1. 吉林省经济管理干部学院,吉林 长春 130033; 2. 吉林省农业科学院 农业质量标准与检测技术研究 所,农业部农产品质量安全风险评估实验室(长春),吉林 长春 130033)
Determination of Vitamin C and Its Content Changes in Clover
HUA Jing-zhong1, LIU Xiao-xiao2, WU Wei2, WEI Chun-yan2,*
(1. Jilin Academy of Economic Management Cadre, Changchun 130033, Jilin, China; 2. Agricultural Products Quality and Safety Risk Assessment, Ministry of Agriculture, Institute of Agricultural Quality Standards and Testing Technology, Jilin Academy of Agricultural Sciences, Changchun 130033, Jilin, China)
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投稿时间:2015-08-05    
中文摘要: 在国家标准 GB 6195-86《水果、蔬菜维生素 C 含量测定法(2,6-二氯靛酚滴定法)》方法的基础上,探讨不同制 样方法对苜蓿中维生素 C 含量的影响以及不同部位、热烫时间、贮藏时间等条件下苜蓿中维生素 C 含量的变化规律。 结果表明,手工研磨法制样测得维生素 C 含量高于组织捣碎法,但差异不显著(P>0.05),且直接加浸提剂制成匀浆要显 著高于匀浆后加浸提剂(P<0.05);不同部位测定结果为叶片>嫩茎;贮藏时间愈长,热烫时间愈长,维生素 C 含量损失愈 多,因此,建议采摘后立即食用,若不能及时食用,低温贮藏 2 d 为宜;热烫时间最好能控制在 3 min 以内。
Abstract:On the basis of the national standard GB 6195-86 methods, sample preparation methods to explore different variation of clover under the influence of vitamin C content as well as different parts of the blanching time, storage time and other conditions of clover vitamin C content. The results showed that hand -grinding method like vitamin C content was higher than the measured tissue mashed law, but the difference was not significant (P > 0.05), and added directly homogenized extraction agent to be significantly higher than the homogenate after extraction agent (P <0.05); measurement results in different parts of the blade> spear; longer storage time, blanching the longer, the more vitamin C content was lost, therefore, it is recommended to eat immediately after picking, if not timely consumption, low temperature storage 2 d appropriate ; blanching time is preferably controlled within 3min.
文章编号:201601012     中图分类号:    文献标志码:A
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