http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
매자나무중 Berberine함량의 계절적 변화에 관한 연구
유승조(Seung Jo Yoo),이경북(Kyung Bok Lee),곽종환(Jong Hwan Kwak) 한국생약학회 1986 생약학회지 Vol.17 No.2
The determination of berberine in Berberis koreana was examined by the high performance liquid chromatography using u-Bondapak C<sub>18</sub> column and CH₃CN/phosphate buffer (pH 5.2) (60/40) as a mobile phase. The seasonal variations of berberine contents in Berberis koreana were as follows; 1) In roots, the average berberine content was 0.94% with the highest level of 1.32% in October. 2) In stems, their average berberine content was about 0.1% and in March, April, October and November, the contents were relatively high. 3) In leaves, however, the content was as low as 0 005%. According to the experimental results obtained, we found that Berberis koreana roots can serve as the useful natural plant resources for the berberine and October is the optimal season for the collection.