붉나무열매의 성분연구(제1보) 유기산에 대하여

• 영문명: Studies on the constituents of the fruits of Rhas javanica L.
• 발행기관: 대한약학회
• 저자명: 한구동(Koo Dong Han) 김영수(Young Soo Kim)
• 간행물 정보: 『약학회지』제1권 제1호 (1948년), 4~6쪽, 전체 3쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1948.03.30

영문 초록

The fruits of Rhus javanica L. distributed widely in Korea were extracted with cold water, the filtered clear liquid was evaporated and from the residue large colorless columes, M.P. about 180o, were obtained by recrystallisation from hot water. On being incinerated it left a considerable amount of solid residue consisting of calcium. Its aqueous solution which had a strong acid reaction was acidified with sulfuric acid, the precipitate, CaSO4, was filtered off, the filtrate was evaporated and from the residue colorless needles, M.P. 98-100o, were obtained by treating with alcohol. It was identified to be malic acid by determining the mixed melting points of itself and its p-bromphenacylester with authentic specimens. Thus the original substance was proved to be a kind of Ca-salt of malic acid. The results of analysis agreed with the formula of an acid salt.