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Production and in vitro evaluation of xylooligosaccharides generated from corn cobs

Paper ID Volume ID Publish Year Pages File Format Full-Text
19062 43043 2012 9 PDF Available
Title
Production and in vitro evaluation of xylooligosaccharides generated from corn cobs
Abstract

Corn cobs are major byproduct of maize processing industries. For value addition of maize byproducts, the present paper aims at extracting xylan from corn cobs and subsequent production of xylooligosaccharides (XOS). Compositional determination of corn cobs revealed 38.78% hemicellulose, 27.71% cellulose and 9.4% lignin. Recovery of xylan increased with increasing concentration of alkali during extraction. The extracted xylan was subjected to acidic hydrolysis to yield XOS. HPLC analysis of hydrolysate revealed increased production of XOS with time, but prolonged incubation resulted in higher amount of xylose. Four probiotic strains were used for undertaking in vitro evaluation of the prebiotic efficacy of XOS. XOS ensured higher growth rate for Enterococcus faecium as compared to other probionts, while fructooligosaccharides (FOS) supported higher proliferation of Lactobacillus viridiscens. This method of xylan extraction and production of XOS offers scope for value addition to the corn byproducts.

► Maximize (more than 80% of original xylan) the yield of xylan from corn cobs by 12% NaOH and steam application. ► Sulfuric acid at lower concentration produces xylooligosaccharides (XOS) comprising of xylobiose and xylotriose. ► The generated XOS exhibited prebiotic efficacy under in vitro system with selected probionts.

Keywords
Corn cobs; Xylan; Xylooligosaccharides; Prebiotic
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Production and in vitro evaluation of xylooligosaccharides generated from corn cobs
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 90, Issue 3, July 2012, Pages 466–474
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us