Types, properties and processing of bio-based animal feed

Burton, Emily; Scholey, Dawn; Williams, P.E.V.

doi:10.1533/9780857097385.2.771

Cited by 4 publications

(4 citation statements)

References 87 publications

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“…In particular, they may be applied to liquid fraction from other whiskey distilleries and grain bioethanol plants where thin stillage/solubles is one of the main products and typically concentrated by evaporation and added to spent grains to form dried distillers grains with solubles (DDGS). With approximately 40% of the energy use of a bioethanol plant used in producing DDGS, 58 processes that reduce the energy requirements of DDGS production or add value to the co-products are required to ensure the continued sustainability of co-product markets. 3 ■ MATERIALS AND METHODS Sample Collection and Storage.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Characterization of Pot Ale from a Scottish Malt Whisky Distillery and Potential Applications

et al. 2020

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Over 2.7 billion liters of pot ale is produced annually as a co-product of Scottish malt whisky, and apart from evaporation to pot ale syrup as a feed, it is primarily treated by anaerobic digestion or land/sea disposal. The aim of this study was to assess pot ale components and their potential applications. The insoluble solid fraction, mainly consisting of yeast, contained 55% protein, and as a protein feed ingredient, this could yield 32,400 tons of feed per annum, although the Cu content of this fraction would need to be monitored. The liquid fraction could yield 33,900 tons of protein per annum, and an SDS-PAGE profile of this fraction demonstrated that the proteins may be similar to those found in beer, which could extend their application as a food ingredient. This fraction also contained phosphorus, potassium, and polyphenols among other components, which could have added value. Overall, fractionation of pot ale could offer an alternative to evaporation to pot ale syrup while retaining the protein fraction in the food chain.

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Section: ■ Results and Discussionmentioning

confidence: 99%

“…Characterization of Yeast from Pot Ale from a Malt Whisky Distillery and Comparison to Brewer's Dried Yeast,44 Yeast Protein Concentrate (YPC), that is, Bioethanol Yeast,58 Bacterial Protein Meal,59 and Soya Bean Meal60 …”

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confidence: 99%

Characterization of Pot Ale from a Scottish Malt Whisky Distillery and Potential Applications

et al. 2020

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“…Rapeseed meal (RSM), a by-product of rapeseed oil extraction connected to the agrifood and biofuel sectors, is produced in large quantities worldwide (40 million tons in 2020) and in the EU (12.5 million tons in 2021/2022 and 13.0 million tons expected in 2022/2023) [ 13 ]. Future projections indicate a constant growth of rapeseed oil production, with proportional increments of this by-product, currently used as animal feed and for other low-value purposes [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Rapeseed Meal Protein Isolate as a Supplement to Texture-Modified Food for the Elderly

Gabriella¹,

Schwarze

Lucarini³

et al. 2023

Foods

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Rapeseed meal (RSM), a by-product of rapeseed oil extraction, is currently used for low-value purposes. With a biorefinery approach, rapeseed proteins may be extracted and recovered for high-end uses to fully exploit their nutritional and functional properties. This study reports the application of RSM protein isolate, the main output of a biorefining process aimed at recovering high-value molecules from rapeseed meal, as a supplement to texture-modified (TM) food designed for elderly people with mastication and dysphagia problems. The compositional (macronutrients by Official Methods of Analyses, and mineral and trace element profiles using Inductively Coupled Plasma Optical Emission Spectrometry ICP-OES), nutritional and sensory evaluations of TM chicken breast, carrots and bread formulated without and with RSM protein supplementation (5% w/w) are hereby reported. The results show that the texture modification of food combined with rapeseed protein isolate supplementation has a positive impact on the nutritional and sensory profile of food, meeting the special requirements of seniors. TM chicken breast and bread supplemented with RSM protein isolate showed unaltered or even improved sensory properties and a higher nutrient density, with particular regard to proteins (+20–40%) and minerals (+10–16%). Supplemented TM carrots, in spite of the high nutrient density, showed a limited acceptability, due to poor sensory properties that could be overcome with an adjustment to the formulation. This study highlights the potentialities of RSM as a sustainable novel protein source in the food sector. The application of RSM protein proposed here is in line with the major current challenges of food systems such as the responsible management of natural resources, the valorization of agri-food by-products, and healthy nutrition with focus on elderly people.

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“…With regards to bioethanol production, approximately one third of every kilogram of wheat or corn is converted into ethanol, one third into carbon dioxide and one third into DDGS (Bruynooghe et al, 2013;Chatzifragkou et al, 2015). In the USA, DDGS from bioethanol plants is corn-based (Moreau et al, 2012), whereas, in the United Kingdom, Canada, and most of European countries, it is wheat based (Burton et al, 2014). DDGS is used as animal feed and is an important source of energy, protein, water-soluble vitamins and minerals for livestock.…”

Section: Introductionmentioning

confidence: 99%

Alkaline fractionation and enzymatic saccharification of wheat dried distillers grains with solubles (DDGS)

Zaini

Chatzifragkou

Charalampopoulos

2019

Food and Bioproducts Processing

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The complete utilisation of Dried Distillers Grains with Soluble (DDGS) requires effective pretreatment strategies aiming to increase the enzymatic digestibility of cellulose and improve its conversion to fermentable sugars. To this end, the effect of different NaOH concentrations (0-5%, w/v) and temperature (30-121 o C) on the fractionation of DDGS to its main components (cellulose, hemicellulose, proteins) was evaluated. As the NaOH concentration and temperature increased, the total sugar content of the pretreated DDGS solids progressively increased to a maximum of ~88%. At 121 o C and 5% NaOH, the DDGS solid residue consisted primarily of glucose (~53%), a 5-fold increase compared to the original DDGS, reflecting the presence of cellulose, and to a lesser extent by xylose (~25%) and arabinose (~10%) reflecting the presence of hemicellulose. Approximately 83% of the initial hemicellulose and 79% of the protein contents were removed into the liquid fraction during alkaline pretreatment. The enzymatic digestibility of the pretreated DDGS solids by the Accellerase® 1500 cellulase enzyme was significantly improved, resulting in a 3.6 fold increase in glucose yield compared to untreated DDGS. Mass balance analysis demonstrated that the proposed process scheme recovers the majority of the key DDGS components (cellulose, hemicellulose, proteins) in an efficient manner with relatively low losses, and provides a viable approach for the valorisation of DDGS.

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Types, properties and processing of bio-based animal feed

Cited by 4 publications

References 87 publications

Characterization of Pot Ale from a Scottish Malt Whisky Distillery and Potential Applications

Characterization of Pot Ale from a Scottish Malt Whisky Distillery and Potential Applications

Application of Rapeseed Meal Protein Isolate as a Supplement to Texture-Modified Food for the Elderly

Alkaline fractionation and enzymatic saccharification of wheat dried distillers grains with solubles (DDGS)

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