Phenolic profile and content of sorghum grains under different irrigation managements

Sorghum grain is widely consumed in Sub-Saharan Africa and Asia, as a staple food due to its adaptation to harsh environments. The impact of irrigation regime: full irrigation (100%); deficit irrigation (50%); and severe deficit irrigation (25%) on phenolic profile and content of six sorghum grain g...

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Main Authors: Wu, G., Bennett, Sarita, Bornman, J., Clarke, M., Fang, Z., Johnson, Stuart
Format: Journal Article
Published: Elsevier 2017
Online Access:http://hdl.handle.net/20.500.11937/53661
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author Wu, G.
Bennett, Sarita
Bornman, J.
Clarke, M.
Fang, Z.
Johnson, Stuart
author_facet Wu, G.
Bennett, Sarita
Bornman, J.
Clarke, M.
Fang, Z.
Johnson, Stuart
author_sort Wu, G.
building Curtin Institutional Repository
collection Online Access
description Sorghum grain is widely consumed in Sub-Saharan Africa and Asia, as a staple food due to its adaptation to harsh environments. The impact of irrigation regime: full irrigation (100%); deficit irrigation (50%); and severe deficit irrigation (25%) on phenolic profile and content of six sorghum grain genotypes was investigated by high performance liquid chromatography coupled with diode array detection and electrospray ionization mass spectrometry (HPLC-DAD-ESI-MS). A total of 25 individual polyphenols were unequivocally or tentatively identified. Compared to the colored-grain genotypes, the white grained sorghum var. Liberty had a simpler polyphenol profile. The concentrations of the sorghum-specific 3-deoxyanthocyanidins luteolinidin and apigeninidin, were higher under deficit irrigation compared to the other two regimes in all genotypes. These findings will be valuable for the selection of sorghum genotypes for grain production as human food under water deficit conditions, since polyphenol levels can affect the grain's nutritional value and health properties.
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spelling curtin-20.500.11937-536612018-05-09T01:41:42Z Phenolic profile and content of sorghum grains under different irrigation managements Wu, G. Bennett, Sarita Bornman, J. Clarke, M. Fang, Z. Johnson, Stuart Sorghum grain is widely consumed in Sub-Saharan Africa and Asia, as a staple food due to its adaptation to harsh environments. The impact of irrigation regime: full irrigation (100%); deficit irrigation (50%); and severe deficit irrigation (25%) on phenolic profile and content of six sorghum grain genotypes was investigated by high performance liquid chromatography coupled with diode array detection and electrospray ionization mass spectrometry (HPLC-DAD-ESI-MS). A total of 25 individual polyphenols were unequivocally or tentatively identified. Compared to the colored-grain genotypes, the white grained sorghum var. Liberty had a simpler polyphenol profile. The concentrations of the sorghum-specific 3-deoxyanthocyanidins luteolinidin and apigeninidin, were higher under deficit irrigation compared to the other two regimes in all genotypes. These findings will be valuable for the selection of sorghum genotypes for grain production as human food under water deficit conditions, since polyphenol levels can affect the grain's nutritional value and health properties. 2017 Journal Article http://hdl.handle.net/20.500.11937/53661 10.1016/j.foodres.2017.04.030 Elsevier fulltext
spellingShingle Wu, G.
Bennett, Sarita
Bornman, J.
Clarke, M.
Fang, Z.
Johnson, Stuart
Phenolic profile and content of sorghum grains under different irrigation managements
title Phenolic profile and content of sorghum grains under different irrigation managements
title_full Phenolic profile and content of sorghum grains under different irrigation managements
title_fullStr Phenolic profile and content of sorghum grains under different irrigation managements
title_full_unstemmed Phenolic profile and content of sorghum grains under different irrigation managements
title_short Phenolic profile and content of sorghum grains under different irrigation managements
title_sort phenolic profile and content of sorghum grains under different irrigation managements
url http://hdl.handle.net/20.500.11937/53661