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Physicochemical assessment and bioactive properties of condensed distillers solubles, a by-product from the sorghum bio-fuel industry

Citation

Navarro, M and Sonni, F and Chaliha, M and Netzel, G and Stanley, R and Sultanbawa, Y, Physicochemical assessment and bioactive properties of condensed distillers solubles, a by-product from the sorghum bio-fuel industry, Journal of Cereal Science, 72 pp. 10-15. ISSN 0733-5210 (2016) [Refereed Article]

Copyright Statement

Copyright 2016 Elsevier Ltd.

DOI: doi:10.1016/j.jcs.2016.09.008

Abstract

Large volumes of condensed distillers solubles (CDS) are generated as by-products, from the sorghum bioethanol industry. The objective was to assess the physico-chemical and bioactive properties of CDS. The unfractionated CDS showed the highest content of phenolic compounds (16 mg GAE/g), antioxidant (522 mM Trolox/g) and antimicrobial activity (MIC 1%(w/v) against Campylobacter spp.) compared to its extracts. The water and methanol extracts also showed high levels of phenolic compounds and antioxidant activity (11.6 and 9.2 mg GAE/g and 349 and 409 mM Trolox/g respectively), followed by ethanol and acetone extractions (7.5 and 6.6 mg GAE/g; 337 and 346 mM Trolox/g respectively). A positive correlation was revealed between total phenol and antioxidant activity. The main phenolic compounds found in the extracts were protocatechuic acid, 4-hydroxybenzoic acid, taxifolin, ferulic acid, cinnamic acid and p-coumaric acid. This study indicates the potential of using CDS as a functional ingredient for other food and feed applications.

Item Details

Item Type:Refereed Article
Keywords:sorghum, condensed distillers solubles, cereal by-products, phytochemicals, bioactive properties, bio-fuel
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Biomass and Bioproducts
Objective Division:Plant Production and Plant Primary Products
Objective Group:Summer Grains and Oilseeds
Objective Field:Sorghum
Author:Stanley, R (Dr Roger Stanley)
ID Code:115173
Year Published:2016
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2017-03-08
Last Modified:2017-11-06
Downloads:0

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