Earticle

초록

영어

The chemical reduction of Pseudomonas syringae subsp. phaseolicola alginates produces neutral polymers of D-mannose and L-gulose in source specific ratios. L-Gulose was highly sensitive to degradation by 1N HCl at 100℃. As hydrolysis time increased, gulose recovery decreased to 22% after 4 hr, whereas 98% of the D-mannose was recovered under the same conditions. Thin layer chromatography showed the formation of a second product upon L-gulose acid hydrolysis. This new product had a rate of flow (Rf) value of 0.58, identical to that of 1,6 anhydro-B-D-mannopyranose and very close to that of 1,6 anhydro-B-D-glucopyranose (Rf=0.60). Because of the difference in acid sensitivity between L-gulose and D-mannose, normal acid hydrolytic techniques applied to reduced alginates produces erroneous mannuronic acid (M): guluronic acid (G) ratio's unless one accounts for the differential rates of destruction of each sugar.

목차

Abstract
 Introduction
 Materials and Methods
 Results and Discussion
 References

키워드

저자

• Ashby, Richard D. [ Audubon Sugar Institute, Louisiana State University Agricultural Experiment Station ]
• Day, Donal F. [ Audubon Sugar Institute, Louisiana State University Agricultural Experiment Station ]
• Kim, Du-Woon [ Department of Food and Nutrition, Chonnam National University ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Food Science and Biotechnology

• 간기

  격월간

• pISSN

  1226-7708

• 수록기간

  1992~2009

• 십진분류

  KDC 574 DDC 664