지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Rice endosperm, the portion that remains after milling, is the part of the rice seed that is primarily consumed as a source of nutrients. There have been many studies on polysaccharides, such as hemicellulose, cellulose, and pectins, derived from the cell walls of various plant groups. It has been reported that the acidic polysaccharide fractions, which contain water-soluble pectins that have been shown to have pharmacological effects in vivo and in vitro, have common chemical structures that include galacturonic acid polymers, rhamnose, arabinose, and galactose. However, few studies have been conducted on the acidic polysaccharides contained in the endosperm of rice. In this study, we quantitatively compared the differences in the acidic polysaccharide contents from samples from two of the main varieties of rice consumed as staple foods, japonica and indica, using a colorimetric method. Rice samples were collected from 39 different regions in Korea, China, Thailand and Vietnam. Acidic polysaccharide fractions were obtained by precipitation of the alcohol-insoluble residue (AIR) and enzyme treatment of each sample. The total amount of carbohydrates and uronic acid in each acidic polysaccharide fraction were measured using the phenol-sulfuric acid method and the carbazole-sulfuric acid method, respectively. The differences in the total polysaccharide contents in the acidic polysaccharide fractions were not statistically significant (p = 0.07), but the uronic acid contents were significantly different between the two groups (p = 0.04).
목차
Abstract
1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
References
참고문헌 (38)
참고문헌 신청
‘Consensus Document on the Biology of Oryza Sativa (rice)’, Organisation for Economic Co-operation and Development, 1999.
D. Normile, Science, 275(5298), 309-309 (1997).
S. Muthayya, J. D. Sugimoto, S. Montgomery, and G. F. Maberly, Ann N Y Acad Sci., 1324, 7-14 (2014).
G. S. Khush, In ‘Oryza: From Molecule to Plant’, pp 25-34, T. Sasaki, and G. Moore, Eds., Springer Netherlands, Dordrecht, 1997.
O. A. Olsen, ‘Endosperm: Developmental and Molecular Biology’, Springer Berlin Heidelberg, 2007.
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UCI(KEPA) : I410-ECN-0101-2018-433-001191806