| 查看: 151 | 回复: 1 | |||
| 当前主题已经存档。 | |||
chenyong1302金虫 (小有名气)
|
[交流]
英译汉 一段英文摘要
|
||
|
Norbergenin, which is the O-demethyl derivative of bergenin, the main component of Mallotus japonicus, has been found to show moderate antioxidant activity (IC(50) 13 microM in DPPH radical scavenging; 32 microM in superoxide anion scavenging). Modification of sugar part on norbergenin by coupling with a variety of fatty acids was employed for increasing its antioxidant activity. Selective esterification of hydroxyl groups on the sugar part enhanced greatly antioxidant activity. The most potentone is norbergenin 11-caproate, which not only exhibits stronger antioxidant activity than that of catechin but also prevents neuronal death at 10 microM on the primary culture of rat cortical neurons in DMEM supplemented with N2. лл |
回复此楼» 猜你喜欢
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有3人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有3人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有4人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有3人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有5人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有5人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有5人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有6人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有6人回复
-
售SCI一区文章，我:8 O5 51O 54,科目齐全
已经有6人回复
★ ★ ★ ★ ★ ★
chenyong1302(金币+6,VIP+0):谢谢 4-7 10:17
chenyong1302(金币+6,VIP+0):谢谢 4-7 10:17
| 鲜品含虎耳草甙是矮茶素的去甲氧基的衍生物，是日本野桐的主要成分。研究发现在清楚二苯代苦味酰自由基（鲜品含虎耳草甙含量13ppm）和超氧化物阴离子(虎耳草甙含量30ppm)鲜品含时具有一定的抗氧化活性。通过不同的脂肪酸交联与鲜品含虎耳草甙中的糖类部分改性可提高其抗氧化能力。对糖中的羟基有选择性的酯化能大大提高其抗氧化活性。其中最具药效的是鲜品含虎耳草甙11-己酸酯。它不仅比儿茶素的抗氧化能力强，而且其含量在10ppm时可以阻止在氮气氛围下的达尔伯克(氏)必需基本培养基中原始培养的老鼠皮层神经细胞死亡。 |
2楼2009-04-07 08:02:04
10