Antioxidant properties and total phenolics of Thua Nao (a Thai fermented soybean) as affected by Bacillus-fermentation

The present study aims to investigate antioxidant activity and phenolic contents of Thai thua nao. Methanolic extracts of cooked non-fermented soybeans (CNF) and thua nao-fermented soybeans prepared by naturally occurring bacteria (TNMX) and Bacillus subtilis TN51 (TNB51) were prepared and used to d...

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Main Authors: Katekan Dajanta, Arunee Apichartsrangkoon, Ekachai Chukeatirote
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/49664
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-496642018-09-04T04:13:19Z Antioxidant properties and total phenolics of Thua Nao (a Thai fermented soybean) as affected by Bacillus-fermentation Katekan Dajanta Arunee Apichartsrangkoon Ekachai Chukeatirote Biochemistry, Genetics and Molecular Biology Immunology and Microbiology The present study aims to investigate antioxidant activity and phenolic contents of Thai thua nao. Methanolic extracts of cooked non-fermented soybeans (CNF) and thua nao-fermented soybeans prepared by naturally occurring bacteria (TNMX) and Bacillus subtilis TN51 (TNB51) were prepared and used to determine antioxidant activities by β-carotene-linoleic acid system and DPPH-radical scavenging assay. Total phenolic contents of thua nao samples (both TNMX and TNB51) were significantly higher than those of the CNF samples (with an increase around 21 and 35%, respectively). A correlation between larger amount of total phenolics and higher antioxidant activity as determined by the β-carotene-linoleic acid model was observed in these extracts. All these results indicate that production process and bacterial fermentation are responsible for improvement of total phenolics and antioxidant activity. The potential use of B. subtilis TN51 appears to be a suitable fermenting strain to promote antioxidant property in cooked soybean. © 2011 Dajanta K, et al. 2018-09-04T04:05:09Z 2018-09-04T04:05:09Z 2011-12-06 Journal 19485948 2-s2.0-82555187394 10.4172/1948-5948.1000056 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=82555187394&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/49664
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Biochemistry, Genetics and Molecular Biology
Immunology and Microbiology
spellingShingle Biochemistry, Genetics and Molecular Biology
Immunology and Microbiology
Katekan Dajanta
Arunee Apichartsrangkoon
Ekachai Chukeatirote
Antioxidant properties and total phenolics of Thua Nao (a Thai fermented soybean) as affected by Bacillus-fermentation
description The present study aims to investigate antioxidant activity and phenolic contents of Thai thua nao. Methanolic extracts of cooked non-fermented soybeans (CNF) and thua nao-fermented soybeans prepared by naturally occurring bacteria (TNMX) and Bacillus subtilis TN51 (TNB51) were prepared and used to determine antioxidant activities by β-carotene-linoleic acid system and DPPH-radical scavenging assay. Total phenolic contents of thua nao samples (both TNMX and TNB51) were significantly higher than those of the CNF samples (with an increase around 21 and 35%, respectively). A correlation between larger amount of total phenolics and higher antioxidant activity as determined by the β-carotene-linoleic acid model was observed in these extracts. All these results indicate that production process and bacterial fermentation are responsible for improvement of total phenolics and antioxidant activity. The potential use of B. subtilis TN51 appears to be a suitable fermenting strain to promote antioxidant property in cooked soybean. © 2011 Dajanta K, et al.
format Journal
author Katekan Dajanta
Arunee Apichartsrangkoon
Ekachai Chukeatirote
author_facet Katekan Dajanta
Arunee Apichartsrangkoon
Ekachai Chukeatirote
author_sort Katekan Dajanta
title Antioxidant properties and total phenolics of Thua Nao (a Thai fermented soybean) as affected by Bacillus-fermentation
title_short Antioxidant properties and total phenolics of Thua Nao (a Thai fermented soybean) as affected by Bacillus-fermentation
title_full Antioxidant properties and total phenolics of Thua Nao (a Thai fermented soybean) as affected by Bacillus-fermentation
title_fullStr Antioxidant properties and total phenolics of Thua Nao (a Thai fermented soybean) as affected by Bacillus-fermentation
title_full_unstemmed Antioxidant properties and total phenolics of Thua Nao (a Thai fermented soybean) as affected by Bacillus-fermentation
title_sort antioxidant properties and total phenolics of thua nao (a thai fermented soybean) as affected by bacillus-fermentation
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=82555187394&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/49664
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