Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations

The paper focuses on the chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast, natural fermentations and unfermented rice bran. Protein content of yeast-fermented rice bran protein concentrate (YFRBPC), naturally fermented rice bran protein concentrate (NFRBPC)...

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Main Authors: Chinma, Chiemela Enyinnaya, Ilowefah, Muna, Shammugasamy, Balakrishnan, Ramakrishnan, Yogeshini, Syed Muhammad, Sharifah Kharidah
Format: Article
Language:English
Published: Institute of Food Science and Technology 2014
Online Access:http://psasir.upm.edu.my/id/eprint/36775/1/Assessment%20of%20children%E2%80%99s%20health%20and%20indoor%20air%20contaminants%20of%20day%20care%20centre%20in%20industrial%20area.pdf
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author Chinma, Chiemela Enyinnaya
Ilowefah, Muna
Shammugasamy, Balakrishnan
Ramakrishnan, Yogeshini
Syed Muhammad, Sharifah Kharidah
author_facet Chinma, Chiemela Enyinnaya
Ilowefah, Muna
Shammugasamy, Balakrishnan
Ramakrishnan, Yogeshini
Syed Muhammad, Sharifah Kharidah
author_sort Chinma, Chiemela Enyinnaya
collection UPM
description The paper focuses on the chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast, natural fermentations and unfermented rice bran. Protein content of yeast-fermented rice bran protein concentrate (YFRBPC), naturally fermented rice bran protein concentrate (NFRBPC) and unfermented rice protein concentrate (UFRBPC) were 72.50%, 68.92% and 65.73%, respectively, while ash content were 4.72%, 4.61% and 3.04%, respectively. The total amino acids of YFRBPC, NFRBPC and UFRBPC were 123.16, 118.45 and 99.39, respectively. DPPH radical inhibition of YFRBPC, NFRBPC and UFRBPC were 58.62%, 55.29% and 47.14%, respectively, while ferric reducing ability power were 0.73, 0.58 and 0.41 mmol TE per gram, respectively. The highest foam capacity of UFRBPC (57.56%), NFRBPC (64.15%) and YFRBPC (76.00%) was observed at pH 9.0. YFRBPC and NFRBPC were lighter in colour than UFRBPC. YFRBPC had higher denaturation temperature and enthalpy value than NFRBPC and UFRBPC. The β-sheets structures were more in YFRBPC and NFRBPC than UNFBPC.
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spelling upm.eprints-367752015-08-21T01:53:14Z http://psasir.upm.edu.my/id/eprint/36775/ Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations Chinma, Chiemela Enyinnaya Ilowefah, Muna Shammugasamy, Balakrishnan Ramakrishnan, Yogeshini Syed Muhammad, Sharifah Kharidah The paper focuses on the chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast, natural fermentations and unfermented rice bran. Protein content of yeast-fermented rice bran protein concentrate (YFRBPC), naturally fermented rice bran protein concentrate (NFRBPC) and unfermented rice protein concentrate (UFRBPC) were 72.50%, 68.92% and 65.73%, respectively, while ash content were 4.72%, 4.61% and 3.04%, respectively. The total amino acids of YFRBPC, NFRBPC and UFRBPC were 123.16, 118.45 and 99.39, respectively. DPPH radical inhibition of YFRBPC, NFRBPC and UFRBPC were 58.62%, 55.29% and 47.14%, respectively, while ferric reducing ability power were 0.73, 0.58 and 0.41 mmol TE per gram, respectively. The highest foam capacity of UFRBPC (57.56%), NFRBPC (64.15%) and YFRBPC (76.00%) was observed at pH 9.0. YFRBPC and NFRBPC were lighter in colour than UFRBPC. YFRBPC had higher denaturation temperature and enthalpy value than NFRBPC and UFRBPC. The β-sheets structures were more in YFRBPC and NFRBPC than UNFBPC. Institute of Food Science and Technology 2014-10 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36775/1/Assessment%20of%20children%E2%80%99s%20health%20and%20indoor%20air%20contaminants%20of%20day%20care%20centre%20in%20industrial%20area.pdf Chinma, Chiemela Enyinnaya and Ilowefah, Muna and Shammugasamy, Balakrishnan and Ramakrishnan, Yogeshini and Syed Muhammad, Sharifah Kharidah (2014) Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations. International Journal of Food Science & Technology, 49 (10). pp. 2204-2213. ISSN 0950-5423; ESSN: 1365-2621 10.1111/ijfs.12533
spellingShingle Chinma, Chiemela Enyinnaya
Ilowefah, Muna
Shammugasamy, Balakrishnan
Ramakrishnan, Yogeshini
Syed Muhammad, Sharifah Kharidah
Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations
title Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations
title_full Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations
title_fullStr Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations
title_full_unstemmed Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations
title_short Chemical, antioxidant, functional and thermal properties of rice bran proteins after yeast and natural fermentations
title_sort chemical antioxidant functional and thermal properties of rice bran proteins after yeast and natural fermentations
url http://psasir.upm.edu.my/id/eprint/36775/1/Assessment%20of%20children%E2%80%99s%20health%20and%20indoor%20air%20contaminants%20of%20day%20care%20centre%20in%20industrial%20area.pdf
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AT shammugasamybalakrishnan chemicalantioxidantfunctionalandthermalpropertiesofricebranproteinsafteryeastandnaturalfermentations
AT ramakrishnanyogeshini chemicalantioxidantfunctionalandthermalpropertiesofricebranproteinsafteryeastandnaturalfermentations
AT syedmuhammadsharifahkharidah chemicalantioxidantfunctionalandthermalpropertiesofricebranproteinsafteryeastandnaturalfermentations