Comparison of Modified Dry‐Grind Corn Processes for Fermentation Characteristics and DDGS Composition

Singh, Vijay; Johnston, David B.; Naidu, Kalpana; Rausch, Kent D.; Belyea, Ronald L.; Tumbleson, Mike E

doi:10.1094/cc-82-0187

Cited by 119 publications

(92 citation statements)

References 11 publications

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“…Proteases increase the hydrolysis of the proteins present in the corn mash. Proteolytic enzymes have been shown to improve ethanol yield in the dry grind process 10 , in the E-Mill process 21 , and also to increase the amount of FAN in a maize hydrolysate 18 .…”

Section: Acetic Acid % (W/v) Lactic Acid % (W/v) Glycerol % (W/v)mentioning

confidence: 99%

Improving Bioethanol Yield: The Use of Solid-State Fermentation Products Grown on DDGS

Hoskins

Lyons

2009

Journal of the Institute of Brewing

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In a climate of uncertain prices for grain and fuel, conservation and efficiency are more important than ever. Many agro-industrial residues are excellent substrates for solid-state fermentation (SSF). Dried distillers grains with solubles (DDGS) are an important co-product of the ethanol industry and have potential as a substrate for solid-state fermentation. SSF products were produced using DDGS from a distillery and DDGS from a fuel ethanol plant as the fungal growth substrate. The spent grains were inoculated with GRAS (Generally Regarded As Safe) organisms Aspergillus orzyae and Rhizopus oligosporus. After growth, the resultant SSF product was dried and used as an enzyme complex supplement that was added to laboratory scale standard fuel ethanol corn mash fermentations. Improved ethanol yields were consistently observed. The use of solid-state fermentation to produce unique enzyme complexes on DDGS offers a novel way to increase the value of the DDGS and to enhance bioethanol fermentation.

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Section: Acetic Acid % (W/v) Lactic Acid % (W/v) Glycerol % (W/v)mentioning

confidence: 99%

Improving Bioethanol Yield: The Use of Solid-State Fermentation Products Grown on DDGS

Hoskins

Lyons

2009

Journal of the Institute of Brewing

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“…Only the endosperm fraction (rich in starch) is fermented to produce ethanol with a residual co-product, which is often called high protein corn distillers' dried grains (HP-cDDG). This process eliminates the non-fermentable fractions, which are the germ and the bran (Singh et al 2005).…”

mentioning

confidence: 99%

Evaluation of high protein distillers’ dried grains as a feed ingredient for broiler chickens

Jung¹,

Batal²

2010

Can. J. Anim. Sci.

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. 2010. Evaluation of high protein distillers' dried grains as a feed ingredient for broiler chickens. Can. J. Anim. Sci. 90: 505Á512. Two experiments were conducted to evaluate the feeding value of high-protein corn distillers' dried grains (HP-cDDG), from a plant using a front-end fractionation process, on broiler performance in batteries (0 to 20 d of age: exp. 1) and floor pens (0 to 33 d of age: exp. 2). In exp. 1, 1-d-old male broiler chicks were placed in batteries in an environmentally controlled room. Six experimental diets were formulated to contain 0, 3, 6, 9, 12, or 16% HP-cDDG and to be isocaloric and isonitrogeneous. The mash diets were fed to eight replicates of six chicks per replicate from 0 to 20 d of age. Overall (0 to 20 d of age) the inclusion of 6% HP-cDDG or greater in the diets negatively impacted body weight (BW) gain and feed conversion ratio as compared with the control or the 3% HP-cDDG diet. The negative effect was likely due to a marginal lysine deficiency in the diets as the level of HP-cDDG increased. In exp. 2, 1-d-old male broiler chicks were housed in floor pens equipped with hanging tube feeders, a nipple watering system and pine wood shavings in an environmentally controlled room. Six experimental diets were formulated to contain 0, 3, 6, 9, 12, or 16% HP-cDDG and to be isocaloric. The crumble (0 to 15 d of age) and pellet diets (16 to 33 d of age) were fed to eight replications per treatment containing 40 chicks per replication. There was no effect of up to 16% HP-cDDG inclusion on broiler performance during the starter period (0 to 15 d of age). However, any inclusion of HP-cDDG in the diets during the grower period (16 to 33 d of age) significantly decreased BW gain as compared with the control diet. Also, the inclusion of 9% HP-cDDG or greater to the diets negatively impacted feed conversion ratio. The reason for the depression in performance was also likely due to a lysine deficiency. In conclusion, HP-cDDG could be an acceptable feed ingredient for broilers, but special attention must be paid to the amino acid levels (especially lysine) in order to prevent deficiencies.Key words: Body weight, broiler, feed conversion ratio, and high protein corn distillers' dried grains (HP-cDDG) Jung, B. et Batal, A. B. 2010. É valuation des dreˆches se`ches de distillerie riches en prote´ines pour l'alimentation des poulets de chair. Can. J. Anim. Sci. 90: 505Á512. Les auteurs ont effectue´deux expe´riences afin d'e´valuer l'utilite´des dreˆches se`ches de distillerie de maı¨s a`forte teneur en prote´ines (HP-cDDG) pour le rendement des poulets a`griller engraisse´s en batteries (1 re expe´rience, de 0 a`20 jours) ou en parquet (2 e expe´rience, de 0 a`33 jours). Les dreˆches venaient d'une usine recourant aù n proce´de´de fractionnement initial. Lors de la premie`re expe´rience, des poussins maˆles d'un jour ont e´te´place´s en batterie dans une pie`ce a`milieu controˆle´. Six rations expe´rimentales ont e´te´pre´pare´es de fac¸on a`contenir 0, 3, 6, 9, 12 ou 16% de HP-cDDG. Il s'agi...

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“…The soluble portion of the residual coproduct is evaporated and condensed distillers solubles (CDS) are produced. The solid portion of the remaining fermentation residue and condensed distillers solubles are both subjected to drying and produce either distillers dried grains (DDG) or distillers dried solubles (DDS) (Singh et al, 2005;University of Minnesota, 2008). When these two coproducts are mixed and dried, distillers dried grains with solubles (DDGS) is produced.…”

Section: Introductionmentioning

confidence: 99%

“…Endosperm fraction is subjected to fermentation and ethanol recovery. Indeed, pre-removal of the nonfermentable fraction of corn is the main reason for the ethanol yield increase (Singh et al, 2005). The coproduct of this process is DDG, which is high in protein but low in fat.…”

Section: Introductionmentioning

confidence: 99%

Twin-Screw Extrusion Processing of Rainbow trout (Oncorhynchus mykiss) Feeds Using Graded Levels of High Protein Corn-Based Distillers Dried Grains (HP-DDG) and Conventional Distillers Dried Grains with Solubles (DDGS)

Fallahi¹,

Rosentrater²,

Muthukumarappan³

et al. 2013

JFR

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Twin-screw extrusion cooking trials were performed to investigate the differential effects of conventional DDGS (DDGS) and HP-DDG inclusion, as fishmeal replacers, on physical properties (moisture content, water activity, thermal properties, expansion ratio, unit density, bulk density, water absorption, solubility and pellet durability indices, and color) of Rainbow trout (Oncorhynchus mykiss) feed. Four ingredient blends were formulated with 20 and 40% C-DDGS, and 20 and 40% HP-DDG, along with other required dietary ingredients. Each diet was extruded using two replications; a fishmeal based diet acted as the control diet. The highest and the lowest extrudate moisture content and water activity were observed for the diets containing 20% DDGS and 40% HP-DDG, respectively. Compared to the control diet, increasing HP-DDG content from 20 to 40% had no effect on the bulk density of the products, while increasing DDGS content from 20-40% led to a considerable rise in bulk density of the extrudates by 14.2 and 6%, respectively. Also, extrudates with the lowest brightness, greenness, and yellowness values were obtained from the diet containing 20% DDGS, whereas the most color intensity values were observed for the diets containing 40% DDGS and 20% HP-DDG. Increasing DDGS and HP-DDG from 0-40% caused a remarkable increase in water absorption index, by 72 and 30%, respectively. Likewise, the water solubility index increased, but in a considerably lesser order of magnitude. High pellet durability index of more than 99% was achieved with inclusion of either DDGS or HP-DDG. None of the diets impacted the thermal properties of the extrudates. Inclusion of 20 and 40% DDGS resulted in the extrudates with the largest and the smallest unit density values of nearly 887 and 750 kg/m 3 , respectively. As was expected, expansion ratio decreased with increasing unit density. Increasing inclusion levels of HP-DDG did not show any effect on unit density or expansion ratio of the products. Future research should concentrate on investigating the effects of both extrusion processing and graded levels of different types of DDGS on Rainbow trout feeds.

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Comparison of Modified Dry‐Grind Corn Processes for Fermentation Characteristics and DDGS Composition

Cited by 119 publications

References 11 publications

Improving Bioethanol Yield: The Use of Solid-State Fermentation Products Grown on DDGS

Improving Bioethanol Yield: The Use of Solid-State Fermentation Products Grown on DDGS

Evaluation of high protein distillers’ dried grains as a feed ingredient for broiler chickens

Twin-Screw Extrusion Processing of Rainbow trout (Oncorhynchus mykiss) Feeds Using Graded Levels of High Protein Corn-Based Distillers Dried Grains (HP-DDG) and Conventional Distillers Dried Grains with Solubles (DDGS)

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