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Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production

High sugary corn genotypes (HSGs; Zea mays L.) have shown the potential to produce higher amounts of ethanol consuming lower quantity of enzymes during dry-grind (DG) ethanol production compared with those of parent field corn lines (PFCs). Dried distiller's grains with solubles (DDGS) is an im...

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Main Authors: Zabed, H., Boyce, A.N., Sahu, J.N., Faruq, G.
Format: Article
Published: Elsevier 2017
Subjects:
Q Science (General)
QH Natural history
Online Access:http://eprints.um.edu.my/18868/
http://dx.doi.org/10.1016/j.jclepro.2016.11.180
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spelling my.um.eprints.188682018-06-12T06:04:38Z http://eprints.um.edu.my/18868/ Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production Zabed, H. Boyce, A.N. Sahu, J.N. Faruq, G. Q Science (General) QH Natural history High sugary corn genotypes (HSGs; Zea mays L.) have shown the potential to produce higher amounts of ethanol consuming lower quantity of enzymes during dry-grind (DG) ethanol production compared with those of parent field corn lines (PFCs). Dried distiller's grains with solubles (DDGS) is an important co-product for a DG plant, where the market value of DDGS is affected by its quality, particularly the physicochemical composition. In the present work, DDGS samples were studied for both HSGs and PFCs in a conventional and a non-cooking DG ethanol method under two enzymatic conditions to evaluate DDGS composition of the corn genotypes. Irrespective of the enzymatic conditions, the average yield of DDGS among the corn genotypes ranged from 25.07% to 32.44% for the conventional and 26.97%–31.69% for the non-cooking method. Compared to the DDGS of HSGs, significantly higher amounts of starch were recorded in the DDGS of PFCs in both methods when enzyme load was the lowest. Protein content in DDGS samples did not differ significantly between the two enzyme loads and the DG methods individually, but the combined effects of genotypes and DG methods had significant effects on the protein content. All the biochemical components of corn kernels significantly correlated with the respective components in DDGS under all conditions. In conclusion, HSGs produced DDGS with higher amounts of protein and ash, but lower amount of starch than those of PFCs. Elsevier 2017 Article PeerReviewed Zabed, H. and Boyce, A.N. and Sahu, J.N. and Faruq, G. (2017) Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production. Journal of Cleaner Production, 142. pp. 4282-4293. ISSN 0959-6526 http://dx.doi.org/10.1016/j.jclepro.2016.11.180 doi:10.1016/j.jclepro.2016.11.180
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QH Natural history
spellingShingle Q Science (General)
QH Natural history
Zabed, H.
Boyce, A.N.
Sahu, J.N.
Faruq, G.
Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production
description High sugary corn genotypes (HSGs; Zea mays L.) have shown the potential to produce higher amounts of ethanol consuming lower quantity of enzymes during dry-grind (DG) ethanol production compared with those of parent field corn lines (PFCs). Dried distiller's grains with solubles (DDGS) is an important co-product for a DG plant, where the market value of DDGS is affected by its quality, particularly the physicochemical composition. In the present work, DDGS samples were studied for both HSGs and PFCs in a conventional and a non-cooking DG ethanol method under two enzymatic conditions to evaluate DDGS composition of the corn genotypes. Irrespective of the enzymatic conditions, the average yield of DDGS among the corn genotypes ranged from 25.07% to 32.44% for the conventional and 26.97%–31.69% for the non-cooking method. Compared to the DDGS of HSGs, significantly higher amounts of starch were recorded in the DDGS of PFCs in both methods when enzyme load was the lowest. Protein content in DDGS samples did not differ significantly between the two enzyme loads and the DG methods individually, but the combined effects of genotypes and DG methods had significant effects on the protein content. All the biochemical components of corn kernels significantly correlated with the respective components in DDGS under all conditions. In conclusion, HSGs produced DDGS with higher amounts of protein and ash, but lower amount of starch than those of PFCs.
format Article
author Zabed, H.
Boyce, A.N.
Sahu, J.N.
Faruq, G.
author_facet Zabed, H.
Boyce, A.N.
Sahu, J.N.
Faruq, G.
author_sort Zabed, H.
title Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production
title_short Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production
title_full Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production
title_fullStr Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production
title_full_unstemmed Evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production
title_sort evaluation of the quality of dried distiller's grains with solubles for normal and high sugary corn genotypes during dry–grind ethanol production
publisher Elsevier
publishDate 2017
url http://eprints.um.edu.my/18868/
http://dx.doi.org/10.1016/j.jclepro.2016.11.180
_version_ 1643690819660546048
score 13.211869

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