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

Navarro, Marta, Sonni, Francesca, Chaliha, Mridusmita, Netzel, Gabi, Stanley, Roger and Sultanbawa, Yasmina (2016) Physicochemical assessment and bioactive properties of condensed distillers solubles, a by-product from the sorghum bio-fuel industry. Journal of Cereal Science, 72 10-15. doi:10.1016/j.jcs.2016.09.008


Author Navarro, Marta
Sonni, Francesca
Chaliha, Mridusmita
Netzel, Gabi
Stanley, Roger
Sultanbawa, Yasmina
Title Physicochemical assessment and bioactive properties of condensed distillers solubles, a by-product from the sorghum bio-fuel industry
Journal name Journal of Cereal Science   Check publisher's open access policy
ISSN 1095-9963
0733-5210
Publication date 2016-11-01
Sub-type Article (original research)
DOI 10.1016/j.jcs.2016.09.008
Open Access Status Not yet assessed
Volume 72
Start page 10
End page 15
Total pages 6
Place of publication London, United Kingdom
Publisher Academic Press
Language eng
Formatted 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 μM 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 μM Trolox/g respectively), followed by ethanol and acetone extractions (7.5 and 6.6 mg GAE/g; 337 and 346 μM 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.
Keyword Bioactive properties
Cereal by-products
Condensed distillers solubles
Phytochemicals
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Queensland Alliance for Agriculture and Food Innovation
 
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