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Comparison of Nitrosation Inhibition Activities and Total Flavonoid Contents in Different Parts of Sweet Potato
Author(s): 
Pages: 8-11
Year: Issue:  3
Journal: FOOD AND FERMENTATION INDUSTRIES

Keyword:  红薯提取物阻断清除总黄酮相关性;
Abstract: 测定了红薯不同部位提取物对N-亚硝胺(NDMA)合成阻断、对亚硝酸盐的清除能力及其黄酮类化合物的含量,并比较了它们之间的相关性.结果表明:在体外模拟人体胃液的条件下,红薯各部位提取物均有抑制亚硝化反应的作用,其中红薯叶对N-亚硝胺(NDMA)合成阻断及对亚硝酸盐的清除最佳,依次为红薯茎、红薯梗;其阻断和清除率随提取物浓度增加而增加;不同部位提取液对N-亚硝胺(NDMA)合成阻断作用、对亚硝酸盐的清除作用与总黄酮含量相关,相关系数分别为0.987 4、0.960 3.
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