Ozone assisted autohydrolysis of wheat bran enhances xylooligosaccharide production with low generation of inhibitor compounds: A comparative study

Rutuja, Murlidhar Sonkar and Pravin, Savata Gade and Vijay, Bokade and Sandeep, N. Mudliar and Praveena, Bhatt (2021) Ozone assisted autohydrolysis of wheat bran enhances xylooligosaccharide production with low generation of inhibitor compounds: A comparative study. Bioresource Technology, 338. p. 125559. ISSN 0960-8524

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Abstract

In the present study, ozone assisted autohydrolysis (OAAH) was evaluated for enhanced generation of xylooligosaccharide (XOS) from wheat bran. The total XOS yield with optimum ozone dose of 3% (OAAH-3) was found to be 8.9% (w/w biomass) at 110 ◦C in comparison to 7.96% at 170 ◦C by autohydrolysis (AH) alone. Although, there was no significant difference in oligomeric composition (DP 2–6), significant decrease in degradation products namely furfural (2.78-fold), HMF (3.15-fold), acrylamide (nil) and acetic acid (1.06-fold), was observed with OAAH-3 as a pretreatment option. There was 1-fold higher xylan to XOS conversion and OAAH-hydrolysate had higher DPPH radical scavenging activity than AH. PCA plots indicated clear enhancement in XOS production and lower generation of inhibitors with decrease in treatment temperature. Results of the study therefore suggest OAAH can be an effective pretreatment option that can further be integrated with downstream processing for concentration and purification of XOS.

Item Type:	Article
Uncontrolled Keywords:	Xylooligosaccharide Ozonolysis Hydrothermal treatment Advanced oxidation Agro-industry waste
Subjects:	600 Technology > 05 Chemical engineering > 03 Enzyme Biotechnology and Engineering 600 Technology > 08 Food technology > 16 Nutritive value > 07 Waste utilization 600 Technology > 08 Food technology > 21 Cereals > 04 Wheat
Divisions:	Food Microbiology Plant Cell Biotechnology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	29 Mar 2022 08:17
Last Modified:	29 Mar 2022 08:17
URI:	http://ir.cftri.res.in/id/eprint/15151

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