鲜棗中抗坏血酸的含量及其利用

被引:34
作者
王淮洲
陈志远
李志媛
汪荣桂
周启源
机构
[1] 中央卫生研究院营养学系
[2] 中央卫生研究院营养学系 北京
[3] 北京
关键词
抗坏血酸; 程度; 雨天; 硬变; 滴定法; 化学法; 排出量; 摄入量;
D O I
10.13325/j.cnki.acta.nutr.sin.1956.01.003
中图分类号
学科分类号
摘要
鲜棗的抗坏血酸含量极高,为一般水果与蔬菜之冠。品种之间的差异很大。在本试验里所分析的16种鲜棗,一般含量都在每百克300毫克以上,多数在400—600毫克之间,最高者则超过1,000毫克。含量随成熟程度而降低;当棗由硬变软时,还原抗坏血酸之量大减,脱氢抗坏血酸之量相应地增高,而总抗坏血酸之量则无大改变。在冷藏 坏血酸的利用率为纯抗坏血酸的72.6—100.5%,平均为86.3%,这样的差异是不大的。
引用
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页码:15 / 24
页数:10
相关论文
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