A procedure for the determination of the degree of methyl esterification of pectin in virtually any sample is described. Samples were dissolved or suspended in 1 M imidazole buffer, pH 7.0, cooled on ice, and reduced with sodium borohydride. Quantitative reduction of samples was accomplished after 1
The acetylation of O-3 of galacturonic acid in the rhamnose-rich portion of pectins
β Scribed by Padmini Komalavilas; Andrew J. Mort
- Book ID
- 102990108
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 795 KB
- Volume
- 189
- Category
- Article
- ISSN
- 0008-6215
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The effect of the presence of chromatographic grade AI20 ~ on the acetylation of a series of unsymmetrical 1,5--diols was investigated. For diols containing both a primary and a secondary hydroxyl group, it was observed that higher yields of the more hindered secondary acelates were formed in the pr
Phase Equilibria in the Fe-Rich Portion of the Fe-Ni-Si System. -The phase equilibria between the Ξ±,Ξ³,Ο and liquid phases and the critical phase boundaries between the Ξ±,Ξ±' and Ξ±" phases in the Fe-rich portion of the Fe-Ni-Si system in the temperature interval 800-1200 β’ C are determined using X-ray