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Biorefinery strategies for upgrading Distillers’ Dried Grains with Solubles (DDGS)

Chatzifragkou, A. ORCID:, Kosik, O., Prabhakumari, P. C., Lovegrove, A., Frazier, R. ORCID:, Shewry, P. R. and Charalampopoulos, D. ORCID: (2015) Biorefinery strategies for upgrading Distillers’ Dried Grains with Solubles (DDGS). Process Biochemistry, 50 (12). pp. 2194-2207. ISSN 0032-9592

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To link to this item DOI: 10.1016/j.procbio.2015.09.005


Distillers’ Dried Grains with Solubles (DDGS) is the major by-product of bioethanol and distillery plants. Due to its high content of proteins, water-soluble vitamins and minerals, DDGS has been long marketed as animal feed for livestock. EU legislation on liquid biofuels could raise the demand on bioethanol production in Europe, with a resulting increase in DDGS availability. DDGS contains a spectrum of complex organic macromolecules, particularly polysaccharides, in addition to proteins and vitamins, and its use as a starting raw material within a biomass-based biorefining strategy could lead to the development of multi-stream processes for the production of commodities, platform molecules or speciality chemicals, with concomitant economic benefits and waste reduction for bioethanol plants. The present review aims to outline the compositional characteristics of DDGS and evaluate its potential utilisation as a starting material for the production of added-value products. Parameters of influence on the chemical and physical characteristics of DDGS are discussed. Moreover, various pre-treatment strategies are outlined in terms of efficient DDGS fractionation into several added value streams. Additional processing steps for the production of medium and high added value compounds from DDGS are evaluated and their potential applications in the food and chemical industry sector are identified.

Item Type:Article
Divisions:Life Sciences > School of Agriculture, Policy and Development > Department of Crop Science
Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Food Research Group
ID Code:42472


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