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Microbial facilitated release of phe...

University of Arkansas.

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Microbial facilitated release of phenolics from heat-stabilized defatted rice bran and antioxidant activity of fermented supernatants.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Microbial facilitated release of phenolics from heat-stabilized defatted rice bran and antioxidant activity of fermented supernatants./
Author:	Webber, Daniel Morgan.
Description:	93 p.
Notes:	Adviser: Navam Hettlarachchy.
Contained By:	Masters Abstracts International46-01.
Subject:	Agriculture, Food Science and Technology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=1445644
ISBN:	9780549143147

Microbial facilitated release of phenolics from heat-stabilized defatted rice bran and antioxidant activity of fermented supernatants.
Webber, Daniel Morgan.

Microbial facilitated release of phenolics from heat-stabilized defatted rice bran and antioxidant activity of fermented supernatants. - 93 p.

Adviser: Navam Hettlarachchy.

Thesis (M.S.)--University of Arkansas, 2006.

Bacillus subtilis subspecies subtilis was selected from among 8 tested organisms based upon its ability to release phenolic compounds from heat-stabilized, defatted rice bran (HDRB). Response surface methodology (RSM) was used to maximize the phenolic yield from fermentation. RSM predicted an optimum phenolic content of 28.6 mg ferulic acid equivalents/g rice bran at 168 h, 0.01% inoculation level, and 100 mg HDRB/mL water. The radical scavenging activity of extracts from optimized fermentation was 2-fold higher than the non-inoculated control. Oxidative stability determination in soy and tallow systems demonstrated that fermented extract containing 17.9% phenolics was less effective at 1000ppm than 200 ppm of synthetic TBHQ. However, fermented extract was more effective than TBHQ when evaluated in the lard lipid system. The affordability of rice bran and the effectiveness of fermented extract in lard systems demonstrate fermented rice bran's potential as an effective, cost effective antioxidant.

ISBN: 9780549143147Subjects--Topical Terms:

1017813
Agriculture, Food Science and Technology.

Microbial facilitated release of phenolics from heat-stabilized defatted rice bran and antioxidant activity of fermented supernatants.
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020 $a 9780549143147
035 $a (UMI)AAI1445644
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100 1 $a Webber, Daniel Morgan. $3 1029944
245 1 0 $a Microbial facilitated release of phenolics from heat-stabilized defatted rice bran and antioxidant activity of fermented supernatants.
300 $a 93 p.
500 $a Adviser: Navam Hettlarachchy.
500 $a Source: Masters Abstracts International, Volume: 46-01, page: 0220.
502 $a Thesis (M.S.)--University of Arkansas, 2006.
520 $a Bacillus subtilis subspecies subtilis was selected from among 8 tested organisms based upon its ability to release phenolic compounds from heat-stabilized, defatted rice bran (HDRB). Response surface methodology (RSM) was used to maximize the phenolic yield from fermentation. RSM predicted an optimum phenolic content of 28.6 mg ferulic acid equivalents/g rice bran at 168 h, 0.01% inoculation level, and 100 mg HDRB/mL water. The radical scavenging activity of extracts from optimized fermentation was 2-fold higher than the non-inoculated control. Oxidative stability determination in soy and tallow systems demonstrated that fermented extract containing 17.9% phenolics was less effective at 1000ppm than 200 ppm of synthetic TBHQ. However, fermented extract was more effective than TBHQ when evaluated in the lard lipid system. The affordability of rice bran and the effectiveness of fermented extract in lard systems demonstrate fermented rice bran's potential as an effective, cost effective antioxidant.
590 $a School code: 0011.
650 4 $a Agriculture, Food Science and Technology. $3 1017813
690 $a 0359
710 2 $a University of Arkansas. $3 1017562
773 0 $t Masters Abstracts International $g 46-01.
790 $a 0011
790 1 0 $a Hettlarachchy, Navam, $e advisor
791 $a M.S.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=1445644