Sei Ozaki
Research Subjects
Sei Ozaki has a total of 3 co-authors. Here are the top co-authors by number of shared publications:
Naoko Oki
Research Institute, Fuji-Sangyo Company, Ltd., Marugame, Kagawa 763-0071, Japan
1 shared publicationShiho Suzuki
Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
1 shared publication- Shinichi Kitamura
Center for Research and Development of Bioresources, Organization for Research Promotion, Osaka Prefecture University, 1-2, Gakuen-cho, Naka-ku, Sakai 599-8570, Japan
1 shared publication
Latest Publications
- 29 October 2010
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 58 (22) , 11593-11599
Structural Characterization and Hypoglycemic Effects of Arabinogalactan-Protein from the Tuberous Cortex of the White-Skinned Sweet Potato (Ipomoea batatas L.)
An arabinogalactan-protein (WSSP-AGP) was isolated from the tuberous cortex of the white-skinned sweet potato (WSSP; Ipomoea batatas L.). It consists of 95% (w/w) carbohydrate and 5% (w/w) protein with high contents of hydroxyproline, alanine, and serine. Its sugar composition is α-l-Rha:α-l-Ara:β-d-Gal:β-d-GlcA in a molar ratio of 1.0:4.1:7.6:1.3. Its weight-average molecular weight was estimated to be 126800 g/mol by high-performance size exclusion chromatography coupled with multiangle laser light scattering. Structural analysis indicated that WSSP-AGP is a (1→3)-β-d-galactan highly branched at O-6 with (1→6)-β-d-galactan, in which the branched chains are substituted at the O-3 position with α-l-Araf-(1→ and α-l-Araf-(1→5)-α-l-Araf-(1→ and at the O-6 position typically with α-l-Rhap-(1→4)-β-d-GlcAp-(1→ as terminating groups. Continuous administration of WSSP-AGP to KKAy mice significantly lowered fasting plasma glucose levels. This indicates that WSSP-AGP plays an important role in the hypoglycemic effects of WSSP.
- 29 October 2010
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 58 (22) , 11593-11599
Structural Characterization and Hypoglycemic Effects of Arabinogalactan-Protein from the Tuberous Cortex of the White-Skinned Sweet Potato (Ipomoea batatas L.)
An arabinogalactan-protein (WSSP-AGP) was isolated from the tuberous cortex of the white-skinned sweet potato (WSSP; Ipomoea batatas L.). It consists of 95% (w/w) carbohydrate and 5% (w/w) protein with high contents of hydroxyproline, alanine, and serine. Its sugar composition is α-l-Rha:α-l-Ara:β-d-Gal:β-d-GlcA in a molar ratio of 1.0:4.1:7.6:1.3. Its weight-average molecular weight was estimated to be 126800 g/mol by high-performance size exclusion chromatography coupled with multiangle laser light scattering. Structural analysis indicated that WSSP-AGP is a (1→3)-β-d-galactan highly branched at O-6 with (1→6)-β-d-galactan, in which the branched chains are substituted at the O-3 position with α-l-Araf-(1→ and α-l-Araf-(1→5)-α-l-Araf-(1→ and at the O-6 position typically with α-l-Rhap-(1→4)-β-d-GlcAp-(1→ as terminating groups. Continuous administration of WSSP-AGP to KKAy mice significantly lowered fasting plasma glucose levels. This indicates that WSSP-AGP plays an important role in the hypoglycemic effects of WSSP.