Composition of corn and distillers dried grains with solubles from dry grind ethanol processing

Belyea, Ronald L.; Rausch, Kent D.; Tumbleson, M. E.

doi:10.1016/j.biortech.2004.01.001

Cited by 344 publications

(258 citation statements)

References 5 publications

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“…Kleinschmit and colleagues (2006) conclude that lower levels (0.44 to 0.52% DM) of ADIN in distillers grains with solubles may improve protein quality and allow increased absorption of essential amino acids. Results of this study reiterate the degree of variation in chemical composition associated with different corn milling coproducts produced from the same or different ethanol plants (Belyea et al, 2004).…”

Section: Discussionsupporting

confidence: 54%

Evaluation of protein fractionation and ruminal and intestinal digestibility of corn milling co-products

Kelzer

Kononoff

Tedeschi

et al. 2010

Journal of Dairy Science

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Novel corn milling co-products developed from technological advancements in ethanol production vary widely in chemical composition and nutrient availability. The objectives of this study were to characterize feed protein fractions and evaluate differences in rumen-undegradable protein (RUP) and its digestible fraction (dRUP), amino acid concentration, and in vitro gas production of 7 corn milling co-products. The crude protein (CP; % of dry matter) of co-products was 12.7 for germ, 26.9 for dried distillers grains plus solubles that had no heat exposure before fermentation (DDGS1), 45.4 for highprotein dried distillers grains (HPDDG), 12.7 for bran, 30.2 for wet distillers grains plus solubles (WDGS), 23.1 for wet corn gluten feed (WCGF), and 26.0 for dried distillers grains plus solubles that had heat exposure before fermentation (DDGS2). Two ruminally and duodenally fistulated Holstein steers weighing 663 ± 24 kg were used to determine RUP and dRUP with the in situ and mobile bag techniques. Samples of each feed were ruminally incubated for 16 h, and mobile bags were exposed to simulated abomasal digestion before insertion into the duodenum and subsequent collection in the feces. Protein fractions A, B 1 , B 2 , B 3 , and C were characterized as follows (% CP): germ = 30.0, 15.0, 38.1, 13.5, 3.4; DDGS1 = 17.0, 7.0, 67.0, 4.8, 4.2; 0.6, 82.4, 8.8, 0.8; bran = 33.5, 4.0, 54.3, 6.0, 2.2; WDGS = 18.6, 2.4, 53.1, 11.0, 14.9; WCGF = 36.6, 15.9, 33.2, 10.1, 4.1; and DDGS2 = 17.9, 2.1, 41.1, 11.1, 27.9. The proportions of RUP and dRUP were different and are reported as follows (% CP): DDGS2 = 56.3, 91.9; HPDDG = 55.2, 97.7; WDGS = 44.7, 93.1; DDGS1 = 33.2, 92.1; bran = 20.7, 65.8; germ = 16.5, 66.8; and WCGF = 11.5, 51.1. The concentrations of Lys and Met in the RUP were different and are listed as follows (% CP): germ = 2.9, 2.0; DDGS1 = 1.9, 2.0; HPDDG = 2.0, 3.2; bran = 3.2, 1.5; WDGS = 1.9, 2.3; WCGF = 3.5, 1.6; and DDGS2 = 1.9, 2.4. In vitro gas production (mL/48 h) was highest for germ (52.1) followed by bran (50.1), WDGS (40.7), DDGS2 (40.1), WCGF (39.0), DDGS1 (38.6), and HPDDG (37.5). Comparison of co-products defined differences in chemical composition, protein fractionation, ruminal availability, and microbial fermentation.

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Section: Discussionsupporting

confidence: 54%

Evaluation of protein fractionation and ruminal and intestinal digestibility of corn milling co-products

Kelzer

Kononoff

Tedeschi

et al. 2010

Journal of Dairy Science

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“…Due to lower initial investments and recent advancements in fermentation technology, dry milling industries have been growing considerably (Belyea et al, 2004;. During the dry-milling process, three types of coproducts including distillers dried grains (DDGs), distillers dried solubles (DDS), and distillers dried grains with solubles (DDGS) are produced after the starch fermentation and distillation of fermented mash.…”

Section: Introductionmentioning

confidence: 99%

“…believed that HP-DDG nutritional values are much more consistent than those of DDGS. However, the grain variety and production processing parameters such as over processing during drying can affect the variability and consistency of the nutrient characteristics of the corn ethanol coproducts (Abo-State et al, 2009;Belyea et al, 1998Belyea et al, , 2004.…”

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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“…This cereal contains over 60% of starch and is easy to handle as a material for fermentation. Corn can be converted into ethanol by either wet or dry milling method (Belyea et al, 2004; *Corresponding author: E-mail: lasik@up.poznan.pl; Tel. +48618487288; Fax: +486184387314.…”

Section: Introductionmentioning

confidence: 99%

Water and energy saving bioprocess for bioethanol production from corn grain applying stillage liquid part recirculation

Lasik¹,

Gumienna²,

Szambelan³

et al. 2013

Afr. J. Biotechnol.

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The distillery stillage is a major and arduous byproduct generated during ethanol production in distilleries. The liquid part of this stillage was proved that can be recycled in the ethanol production from corn, without disturbing the fermentation process. The corn seeds were fermented employing the conventional non-pressure method for gelatinizing as well as including a novelty: Recirculation system of distillery stillage liquid part instead of process water. The efficiency of fermentation and main chemical parameters of stillage were estimated. The liquid part of stillage was recycled 28 times. At these conditions distillery yeast Saccharomyces cerevisiae efficiently produced ethanol yielding 79.80% of the theoretical, keeping the vitality and quantity on the same level. However, recirculation of the liquid part of stillage caused protein and potassium increase in the wet cake what makes this product more attractive for fodder supplementation. It was proven that the addition of stillage liquid fraction to the mashing process instead of process water and 28 recirculation cycles in ethanol production from corn constitutes the way which could significantly reduce the water and energy consumption, what essentially reduce whole general production costs without ethanol efficiency decreasing.

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Composition of corn and distillers dried grains with solubles from dry grind ethanol processing

Cited by 344 publications

References 5 publications

Evaluation of protein fractionation and ruminal and intestinal digestibility of corn milling co-products

Evaluation of protein fractionation and ruminal and intestinal digestibility of corn milling co-products

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)

Water and energy saving bioprocess for bioethanol production from corn grain applying stillage liquid part recirculation

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