摘要
本文报告了在模拟人胃液条件下，头（ＡｌｌｉｕｍｃｈｉｎｅｎｓｉｓＧ．Ｄｏｎ．）和苦瓜（ＭｏｍｏｒｄｉｅａｃｈａｒａｎｔｉａＬｉｎｎ．）对Ｎ－二甲基亚硝胺（ＮＤＭＡ）和Ｎ－二乙基亚硝胺（ＮＤＥＡ）体外合成的阻断作用。结果表明：鲜头汁能明显地阻断ＮＤＭＡ和ＮＤＥＡ的化学合成，而鲜苦瓜汁对ＮＤＭＡ和ＮＤＥＡ的化学合成仅有一定的阻断作用；头经煮沸２０ｍｉｎ和盐腌两周后，其阻断作用大大降低，而同样处理对苦瓜的影响却较小；鲜头升和鲜苦瓜汁的剂量与ＮＤＭＡ和ＮＤＥＡ的合成量呈显著的负相关关系；头阻断亚硝胺合成的主要有效成分并不是抗坏血酸，而苦瓜中抗坏血酸的阻断作用却较大；
he juice of fresh Chinese
onion could obviously inhibit the chemicalsynthesis of N-nitrosodimethylamine(NDMA)and
N-nitrosodiethylamine(NDEA) in vitro,while fresh balsam pear juice only to some
extent.Afterboiled for 20 minutes and pickled for two weeks in a jar,the inhibitingeffect of
Chinese onion was greatly reduced. but balsam Dear was less affec-ted.The dose of the juices
and the amounts of NDMA and NDEA synthe-sized were ndgatively correlated.The active
component of Chinese onionwas not ascorbic acid, but the inhibiting effect of ascorbic acid in
balsampcar was fairly good.
出处
《营养学报》
CAS
CSCD
北大核心
1995年第4期409-411,共3页
Acta Nutrimenta Sinica
