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【答案】应助回帖
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tian901219: 金币+30, 翻译EPI+1, ★★★★★最佳答案 2013-01-10 20:14:21
The title indicates four research contents but only two parts are studied，manely chemical composition and antioxidant activity. As phytochemical constituents and phenolic contents are almost the same and the former includes the latter，the title is not accurate. From the abstract it can see that metal ion content ,total phenolic, flavonoid and tannin contents from A and B are studied but the keyword does not reflect them and DPPH and antioxidant activities overlap .Leek, as a matter of fact，has been used as vegetable everywhere around the world and provides nutrition and antioxidantion. But the seeds are not used for its quantity. As a result the meaning of this paper is not marked. At the same time the choice of hexane and Petroleum ether with similar but weak polarity as extraction solvent and the choice of methanol and ethanol with high polarity make the content rich but overlap. As a result it has no obvious discrepancy and the method is defective. Nutrition and antioxidantion of leek are reported in some papers（Food Chemistry 134 (2012) 669–677 Antioxidant capacity, total phenolic and ascorbate content as a function of the genetic diversity of leek (Allium ampeloprasum var. porrum) ） so the difference of component and antioxidant activity of leek from Egypt and other places is compared in the discussion by comparing these papers. The conclusion is absent in this paper and the language is not standard so it should be checked before another comment.
有几个词我没找到，AB代替。翻译的不好，见笑了。 |
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