当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Pectin-non-starch nanofibers biocomposites as novel gastrointestinal-resistant prebiotics.

Pectin-non-starch nanofibers biocomposites as novel gastrointestinal-resistant prebiotics.

Abstract：

:Incorporation of nanofibers of chitin (NC), lignocellulose (NLC) and bacterial cellulose (BNC) in pectin was studied to improve prebiotic activity and gastrointestinal resistance of the pectin-nanofibers biocomposites for protection of probiotics under simulated gastrointestinal conditions. The biocomposites were prepared using various compositions of pectin and nanofibers, which were designed using D-optimal mixture method. The incorporation of the nanofibers in pectin led to a slow degradation of the pectin-nanofibers biocomposites in contrast to their rapid swelling. AFM analysis indicated the homogenous distribution of interconnected nanofibers network structure in the pectin-nanofibers biocomposite. FTIR spectra demonstrated fabrication of the biocomposites based on the inter- and intra-molecular hydrogen bonding and ionic interaction of pectin-Ca2+. XRD patterns revealed the amorphous structures of the biocomposites as compared to the crystalline structures of the nanofibers. Among the compositions, the optimal compositions were as follows: 60% pectin+40% NC, 50% pectin+50% NLC and 60% pectin+40% BNC, where the prebiotic score, probiotic survival under simulated gastric and intestinal conditions were optimum. The optimal biocomposite pectin-NC exhibited the highest survival of the entrapped probiotic bacteria under simulated gastric (97.7%) and intestinal (95.8%) conditions when compared with the corresponding to free cells (76.2 and 73.4%).

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Khorasani AC,Shojaosadati SA

doi

10.1016/j.ijbiomac.2016.10.011

subject

Has Abstract

pub_date

2017-01-01 00:00:00

pages

131-144

issue

Pt A

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(16)31066-2

journal_volume

94

pub_type

杂志文章

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