摘要
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。
The capabilities for disconnecting nitrosodimethylamin（NDMA） synthesis and scavenging sodium nitrite as well as the total flavonols contents in different parts of sweet potato were compared. The relationship between activity and content was discussed. The resuhs showed that the extracts from different parts all had the ability of disconnecting NDMA synthesis and scavenging sodium nitrite. The extract from the leaf had better resuh than that from the stem and the stalk. With the increasing concentration of the extract, the capabilities of disconnecting NDMA synthesis and scavenging sodium nitrite became stronger. The optimal capabilities of disconnecting NDMA synthesis and scavenging sodium nitrite was also related to the flavonoid content of extraction from different parts of sweet potato, and the relativity coefficient are 0. 9874 and 0. 9603, respectively.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2007年第3期8-11,共4页
Food and Fermentation Industries
基金
浙江省教育厅科研资助项目(No.205113)
关键词
红薯提取物
阻断
清除
总黄酮
相关性
the extract of sweet potato, disconnecting, scavenging, flavonoid, relativity
