Individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar UV radiation and genotype

© 2017 Elsevier Ltd Sorghum is becoming more widely recognised around the world as a valuable crop for its polyphenol antioxidant health-promoting properties and adaptation to harsh environments. The antioxidant capacity of diverse polyphenols in sorghum grain can vary with climatic conditions and g...

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Main Authors: Wu, G., Bornman, Janet, Bennett, Sarita, Clarke, M., Fang, Z., Johnson, Stuart
Format: Journal Article
Published: 2017
Online Access:http://hdl.handle.net/20.500.11937/55884
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author Wu, G.
Bornman, Janet
Bennett, Sarita
Clarke, M.
Fang, Z.
Johnson, Stuart
author_facet Wu, G.
Bornman, Janet
Bennett, Sarita
Clarke, M.
Fang, Z.
Johnson, Stuart
author_sort Wu, G.
building Curtin Institutional Repository
collection Online Access
description © 2017 Elsevier Ltd Sorghum is becoming more widely recognised around the world as a valuable crop for its polyphenol antioxidant health-promoting properties and adaptation to harsh environments. The antioxidant capacity of diverse polyphenols in sorghum grain can vary with climatic conditions and genotype. To explore this further, the potential role of UV radiation on the profile and concentration of polyphenols was investigated in six diverse sorghum genotypes in a controlled environment facility using natural UV and visible radiation under either UV-transmitting or UV-blocking treatments. The polyphenol content and antioxidant activity were significantly reduced under the UV-blocking treatment, with contents of individual polyphenols differing among the genotypes. This information is valuable for sorghum breeders enabling them to select genotypes and UV growth conditions to produce sorghum grain with target levels of polyphenols and antioxidant capacity for human foods to meet the nutritional and health needs of different consumers.
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spelling curtin-20.500.11937-558842017-09-13T16:10:52Z Individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar UV radiation and genotype Wu, G. Bornman, Janet Bennett, Sarita Clarke, M. Fang, Z. Johnson, Stuart © 2017 Elsevier Ltd Sorghum is becoming more widely recognised around the world as a valuable crop for its polyphenol antioxidant health-promoting properties and adaptation to harsh environments. The antioxidant capacity of diverse polyphenols in sorghum grain can vary with climatic conditions and genotype. To explore this further, the potential role of UV radiation on the profile and concentration of polyphenols was investigated in six diverse sorghum genotypes in a controlled environment facility using natural UV and visible radiation under either UV-transmitting or UV-blocking treatments. The polyphenol content and antioxidant activity were significantly reduced under the UV-blocking treatment, with contents of individual polyphenols differing among the genotypes. This information is valuable for sorghum breeders enabling them to select genotypes and UV growth conditions to produce sorghum grain with target levels of polyphenols and antioxidant capacity for human foods to meet the nutritional and health needs of different consumers. 2017 Journal Article http://hdl.handle.net/20.500.11937/55884 10.1016/j.jcs.2017.07.014 restricted
spellingShingle Wu, G.
Bornman, Janet
Bennett, Sarita
Clarke, M.
Fang, Z.
Johnson, Stuart
Individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar UV radiation and genotype
title Individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar UV radiation and genotype
title_full Individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar UV radiation and genotype
title_fullStr Individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar UV radiation and genotype
title_full_unstemmed Individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar UV radiation and genotype
title_short Individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar UV radiation and genotype
title_sort individual polyphenolic profiles and antioxidant activity in sorghum grains are influenced by very low and high solar uv radiation and genotype
url http://hdl.handle.net/20.500.11937/55884