研究了从中草药元宝草中提取金丝桃蒽酮素的工艺方法。
The method of preparation of hypericin from Chinese herb is studied.
不同的溶剂及配比、不同的提取时间对金丝桃蒽酮素的产率有着显著的影响，其在元宝草的根，茎，叶，果实中的含量也各不相同。
There is great effect on the yield of hypericin by the solvent, proportion of solvent and time, and the content in root, stem, leaf and fruit is different.
红系特异的5-氨基酮戊酸合成酶（ALAS2）是血红素生物合成的限速酶。
Erythroid-specific 5-aminolevulinate synthase (ALAS2) catalyzes the rate-limiting step in heme biosynthesis.
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