Current time in Korea 23:36 Oct 29 (Thu) Year 2020 KCS KCS Publications
KCS Publications
My Journal  Log In  Register
HOME > Search > Browsing(JKCS) > Archives

Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 54, Number 1
JKCSEZ 54(1)
February 20, 2010 

 
Title
Isolation of Alkaloids with Immune Stimulating Activity from Oryza sativa cv. Heugnambyeo

흑남벼 함유 Alkaloid 분리 및 면역효능 연구
Author
Min Ju Ryu, Ha Sook Chung*

유민주, 정하숙*
Keywords
흑남벼, 유색미, Alkaloid, 면역증진효능, 기능성 쌀 , Oryza sativa cv. Heugnambyeo, Purple rice, Alkaloid, Immune stimulatory effect, Health-enhancing rice
Abstract
유색미인 흑남벼(Oryza sativa cv. Heugnambyeo) 미강의 ethylacetate 가용성 용매분획물로부터 NO 생성을 저해시키는 단일화합물을 순수 분리한 후, HREI-MS 및 2D-NMR 분석을 통해 화학구조를 4-carboethoxy-6-methoxy-2-quinolone (1)과 4-carboethoxy-6-hydroxy-2-quinolone (2)으로 명명하였다.

We describe the immune stimulatory effects of compounds determined by means of activity-monitored extraction and isolation techniques. As a result, 4-carboethoxy-6-methoxy-2-quinolone (1) and 4-carboethoxy-6-hydroxy-2-quinolone (2) were isolated from the ethyl acetate-soluble fraction of the Oryza sativa cv. Heugnambyeo bran, and were determined to exert significant inhibitory effects in macrophage cell line (murine RAW 264.7) and murine splenocytes. The structures were elucidated on the basis of spectroscopic evidence, particularly the results obtained via hetero nuclear multiple-bond connectivity and high-resolution MS spectroscopy. Up to date, compound (1) was isolated as natural sources for the first time.

Page
65 - 70
Full Text
PDF