当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Preparation of low digestible and viscoelastic tigernut (Cyperus esculentus) starch by Bacillus acidopullulyticus pullulanase.

Preparation of low digestible and viscoelastic tigernut (Cyperus esculentus) starch by Bacillus acidopullulyticus pullulanase.

Abstract：

:Tigernut starch is an underutilized food resource. In this study, pullulanase (PUL) hydrolysis was used to change its physiochemical properties for different food applications. The content of low digestible fractions, resistant starch and slow digestible starch, in PUL modified tigernut starch significantly increased from 2.03% to 25.08% (P<0.05) using 100U/g starch of PUL in the debranching reaction. The paste or dispersion of PUL modified tigernut starch had a significantly decreased viscoelasticity (P<0.05), but the paste still exhibited a typical property of pseudoplasticity. Molecular weight, amylopectin A B2 and B3 chain of PUL modified starch were lower, while amylose content, amylopectin B1 chain were higher than those of natural tigernut starch. The low digestible and viscous tigernut starch is highly valued as a component in some functional foods.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Li X,Fu J,Wang Y,Ma F,Li D

doi

10.1016/j.ijbiomac.2017.04.068

subject

Has Abstract

pub_date

2017-09-01 00:00:00

pages

651-657

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(17)30724-9

journal_volume

102

pub_type

杂志文章

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