当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Characterization and comparative studies of galactomannans from Bauhinia vahlii, Delonix elata, and Peltophorum pterocarpum.

Characterization and comparative studies of galactomannans from Bauhinia vahlii, Delonix elata, and Peltophorum pterocarpum.

Abstract：

:The present investigation determines the extraction and characterization of seed galactomannans from the Leguminosae taxa of Bauhinia vahlii, Delonix elata, and Peltophorum pterocarpum. The seed galactomannans presented a total yield of 30.82, 24.01 and 25.25% with a Man/Gal ratios of 4.21:1, 2.55:1 and 3.03:1 for B. vahlii, D. elata, and P. pterocarpum, respectively exhibiting 1-4 mannose linkages with galactose side chains at C6 position. The galactomannans presented an efficient water holding capacity, solubility and emulsion properties. Intrinsic viscosity from combined Huggins and Kraemer extrapolations are 3.807, 3.424 and 3.331 dl g-1 and the viscosity average molecular weight by Mark-Houwink relationship are 5.29 × 105, 5.29 × 105 and 4.95 × 105 for B. vahlii, D. elata, and P. pterocarpum, respectively. TEM analysis of the polysaccharide showed an aggregated amorphous smooth particles, oval or tubular in shape, branched with compact surfaces. SEM micrographs of the powdered galactomannan indicate well defined amorphous material with pores and cervices on the rough surface. The thermal property studied by DSC and TG-DTA suggests good thermal stability. These findings demonstrate that the seed galactomannan of B. vahlii, D. elata, and P. pterocarpum could be explored as an effective alternative to commercial galactomannans for industrial applications.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Jamir K,Badithi N,Venumadhav K,Seshagirirao K

doi

10.1016/j.ijbiomac.2019.05.080

subject

Has Abstract

pub_date

2019-08-01 00:00:00

pages

498-506

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(19)32426-2

journal_volume

134

pub_type

杂志文章

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