Changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua Nao during shelf-life storage
Thai traditionally fermented soybean (Thua Nao) has been suggested as a good source of available amino acids and aglycone isoflavones. The objective of this research was to investigate the changes of biochemical and nutritional qualities in aerobic- and vacuum-packed thua Nao during the storage at 4...
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th-cmuir.6653943832-480162018-04-25T08:46:42Z Changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua Nao during shelf-life storage Katekan Dajantaa Arune ApishArtsarangku Ekachai Chukeatirote Thai traditionally fermented soybean (Thua Nao) has been suggested as a good source of available amino acids and aglycone isoflavones. The objective of this research was to investigate the changes of biochemical and nutritional qualities in aerobic- and vacuum-packed thua Nao during the storage at 4 and 40°C for 60 days. Three Thua Nao samples including Bacillus subtilis TN51-fermented Thua Nao (TNB51), spontaneously fermented Thua Nao (TNMX) and commercial product (MH) were used in this study. It was found that the storage of packed Thua Nao at 4°C could prolong the product shelf-life up to 40 days. The moisture contents, pH values and colour L a* b* of these products were not different in both aerobic and vacuum-packaged products and remained stable throughout the experiment. The Thiobarbituric Acid (TBA) values of all storage Thua Nao were increased during storage; this is in particular for the aerobic packages of the TNMX and TNB51 products, indicating high oxidation of lipids. There was a slight decrease in DPPH radical scavenging effect (18%) and phenolic compounds (6%) of the vacuum-packaged product when stored at 4°C. In contrast, the great losses in total phenolic content (44%), inhibitoiy activity of DPPH radicals (83%) and total antioxidant (41%) were observed when the products were stored aerobically at 40°C. A reduction in total free amino acids was also found with the highest decrease of Arg in both aerobic- (69%) and vacuum-packages (68%). © 2013 Asian Network for Scientific Information. 2018-04-25T08:46:42Z 2018-04-25T08:46:42Z 2013-04-04 Journal 18125735 10288880 2-s2.0-84875634252 10.3923/pjbs.2013.501.509 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875634252&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/48016 |
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Thai traditionally fermented soybean (Thua Nao) has been suggested as a good source of available amino acids and aglycone isoflavones. The objective of this research was to investigate the changes of biochemical and nutritional qualities in aerobic- and vacuum-packed thua Nao during the storage at 4 and 40°C for 60 days. Three Thua Nao samples including Bacillus subtilis TN51-fermented Thua Nao (TNB51), spontaneously fermented Thua Nao (TNMX) and commercial product (MH) were used in this study. It was found that the storage of packed Thua Nao at 4°C could prolong the product shelf-life up to 40 days. The moisture contents, pH values and colour L a* b* of these products were not different in both aerobic and vacuum-packaged products and remained stable throughout the experiment. The Thiobarbituric Acid (TBA) values of all storage Thua Nao were increased during storage; this is in particular for the aerobic packages of the TNMX and TNB51 products, indicating high oxidation of lipids. There was a slight decrease in DPPH radical scavenging effect (18%) and phenolic compounds (6%) of the vacuum-packaged product when stored at 4°C. In contrast, the great losses in total phenolic content (44%), inhibitoiy activity of DPPH radicals (83%) and total antioxidant (41%) were observed when the products were stored aerobically at 40°C. A reduction in total free amino acids was also found with the highest decrease of Arg in both aerobic- (69%) and vacuum-packages (68%). © 2013 Asian Network for Scientific Information. |
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Katekan Dajantaa Arune ApishArtsarangku Ekachai Chukeatirote |
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Katekan Dajantaa Arune ApishArtsarangku Ekachai Chukeatirote Changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua Nao during shelf-life storage |
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Katekan Dajantaa Arune ApishArtsarangku Ekachai Chukeatirote |
author_sort |
Katekan Dajantaa |
title |
Changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua Nao during shelf-life storage |
title_short |
Changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua Nao during shelf-life storage |
title_full |
Changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua Nao during shelf-life storage |
title_fullStr |
Changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua Nao during shelf-life storage |
title_full_unstemmed |
Changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua Nao during shelf-life storage |
title_sort |
changes in biochemical and nutritional qualities of aerobic and vacuum-packaged thua nao during shelf-life storage |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875634252&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/48016 |
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