Galactomannans and arabinans from seeds of Caesalpiniaceae

被引：34
|
作者：
Petkowicz, CLO
Sierakowski, MR
Ganter, JLMS
Reicher, F
机构：
[1] Univ Fed Parana, Dept Bioquim, BR-81531990 Curitiba, Parana, Brazil
[2] Univ Fed Parana, Dept Quim, BR-81531990 Curitiba, Parana, Brazil
来源：
PHYTOCHEMISTRY | 1998年 / 49卷 / 03期
关键词：
Schizolobium parahybae; Schizolobium amazonicum; Cassia fastuosa; Caesalpiniaceae; chemotyping; seed; polysaccharides; galactomannan; arabinan;
D O I：
10.1016/S0031-9422(98)00228-3
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Schizolobium parahybae and S. amazonicum seeds yielded galactomannans with identical 3.0:1 Man:Gal ratios and with the same D-galactose distribution along the main chain. Although the galactomannan from seeds of Cassia fastuosa showed the same Man:Gal ratio, its line structure differed significantly from that of the two Schizolobium species as shown by the analysis of cligosaccharides (DP 2 to 6) obtained by partial acid hydrolysis. Seed coats of S. parahybae and S. amazonicum furnished similar unusual neutral linear alpha-L-arabinofuranan (1-->5) linked, as determined by methylation analysis, optical rotation and C-13 NMR spectroscopy. On the other hand, C. fastuosa seed coats furnished two acidic arabinans. These results in terms of using galactomannans and arabinans in chemotyping, support the suggestion of Rizzini that S. parahybae and S. amazonicum are not different species. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：737 / 743
页数：7
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