Processing Technologies and Cell Wall Degrading Enzymes To Improve Nutritional Value of Dried Distillers Grain with Solubles for Animal Feed: an in Vitro Digestion Study

Vries, S. de; Pustjens, A.M.; Kabel, Mirjam A.; Salazar-Villanea, Sergio; Hendriks, W.H.; Gerrits, W.J.J.

doi:10.1021/jf4019855

Cited by 37 publications

(39 citation statements)

References 35 publications

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“…The observed correlation of DFAs to insoluble galactose is in line with previous studies describing highly complex feruloylated heteroxylan side chains containing up to two galactose residues from corn bran. 24,25 The observed greater content of DFAs in DDGS from P1 is likely related to the higher content of insoluble arabinoxylan in DDGS from P1 than from P2−P5, as reported by Pedersen et al 2 The simultaneous sampling of both corn grains and corresponding DDGS over 11 months allowed for investigating 26,27 Overall, the analysis of corn and DDGS indicated that the individual composition of DFAs and TriFAs is conserved, indicating that DFAs and TriFAs are basically not modified during ethanol fermentation and subsequent drying of DDGS. Previous characterization of NSP profiles of the samples led to the hypothesis that only arabinoxylan from corn endosperm, which comprises only a minor fraction of the total arabinoxylan, was modified during DDGS production.…”

Section: ■ Discussionmentioning

confidence: 73%

Ferulic Acid Dehydrodimer and Dehydrotrimer Profiles of Distiller’s Dried Grains with Solubles from Different Cereal Species

Pedersen

Bunzel

Schäfer

et al. 2015

J. Agric. Food Chem.

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Ferulic acid dehydrodimers (DFA) and dehydrotrimers (TriFA) ester-linked to plant cell wall polymers may cross-link not only cell wall polysaccharides but also other cell wall components including proteins and lignin, thus enhancing the rigidity and potentially affecting the enzymatic degradation of the plant cell wall. Corn, wheat, and mixed-cereal distiller's dried grains with solubles (DDGS) were investigated for composition of DFAs and TriFAs by reversed phase high-performance liquid chromatography with ultraviolet detection. Corn DDGS contained 5.3 and 5.9 times higher contents of total DFAs than wheat and mixed-cereal DDGS, respectively. Furthermore, the contents of total TriFAs were 5.7 and 6.3 times higher in corn DDGS than in wheat and mixed-cereal DDGS, respectively. In addition, both corn grains and corresponding DDGS had similar profiles of individual DFAs and TriFAs, indicating that ferulic acid cross-links in the corn cell wall are presumably not modified during fermentation and DDGS processing.

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Section: ■ Discussionmentioning

confidence: 73%

Ferulic Acid Dehydrodimer and Dehydrotrimer Profiles of Distiller’s Dried Grains with Solubles from Different Cereal Species

Pedersen

Bunzel

Schäfer

et al. 2015

J. Agric. Food Chem.

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“…Four nutritional characteristics, i. e., dry matter digestibility, protein digestibility, digestible amino‐acid content, and amino‐acid digestibility were calculated using the following equations, which were derived from Vries et al ():

Dry matter digestibility, % = \frac{Dry matter content in supernatant after italicin vitro digestion, normalg}{Dry matter content in DDGS before italicin vitro digestion, normalg} \times 100 %

Protein digestibility, % = \frac{Protein content in supernatant after italicin vitro digestion, normalg}{Protein content in DDGS before italicin vitro digestion, normalg} \times 100 %

\begin{matrix} lefttrue \\ Digestible amino - acid content, m {normalg}^{- 1} (lysine as example) = Lysine content in DDGS, m {normalg}^{- 1} \\ - \frac{Lysine content in residue after in vitro digestion, mg}{Weight of DDGS before in vitro digestion, g} \end{matrix}

Amino - acid digestibility, % ((), lysine as example) = \frac{Digestible Lysine content after italicin vitro digestion, mg}{Total Lysine content in DDGS before italicin vitro digestion, mg} \times 100 % .

…”

Section: Methodsmentioning

confidence: 99%

Effects of Addition of Hydrolyzing Enzymes during Fermentation on Characteristics of Distillers’ Dried Grains with Solubles

Fang

Lamsal

Wang

2018

J Americ Oil Chem Soc

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Various hydrolyzing enzymes are used in drygrind corn ethanol processes, mainly during liquefaction and saccharification steps, to improve yields of ethanol and/or distillers' corn oil. However, the effects of enzyme addition on characteristics of distillers' dried grains with solubles (DDGS) are not thoroughly understood. In this study, the effects of using acid-stable protease, pectinase, and cellulase enzymes during fermentation on chemical and physical characteristics of DDGS were evaluated, including in vitro digestibility using a pig digestion model. The use of a protease resulted in DDGS with a greater fiber content than the control (36% vs. 22%), as well as reduced protein digestibility (64% vs. 69%). The use of pectinase and cellulase (PC) also increased the fiber content of DDGS (29%) and significantly improved the protein content (27%) and protein digestibility (73%) compared with the other treatments. DDGS treated with hydrolyzing enzymes tended to have a darker color and lower waterholding capacity, but better amino-acid digestibility. Treatments with hydrolyzing enzymes significantly altered the composition and characteristics of DDGS, which strongly indicated that PC mix utilized is an effective combination to add during fermentation to produce high-quality DDGS without undesirable effects on ethanol production. The enzyme-treated DDGS can be an inexpensive and nutrientrich diet supply to the porcine diets; however, effects on cattle and dairy cow diets were beyond the scope of the study.

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“…Wet-milling of maize dried distillers grains with solubles increased in vitro crude protein digestibility (113) . It is possible, as suggested by these authors, that the disruption of the cell wall structure leads to increased enzyme accessibility and that the improved in vitro digestion is not linked directly to changes in protein structure, although the latter point was not measured by the authors.…”

Section: Particle Size Reduction Processingmentioning

confidence: 96%

Of proteins and processing: mechanisms of protein damage upon rapeseed processing and their effects on nutritional value

Villanea¹

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Processing Technologies and Cell Wall Degrading Enzymes To Improve Nutritional Value of Dried Distillers Grain with Solubles for Animal Feed: an in Vitro Digestion Study

Cited by 37 publications

References 35 publications

Ferulic Acid Dehydrodimer and Dehydrotrimer Profiles of Distiller’s Dried Grains with Solubles from Different Cereal Species

Ferulic Acid Dehydrodimer and Dehydrotrimer Profiles of Distiller’s Dried Grains with Solubles from Different Cereal Species

Effects of Addition of Hydrolyzing Enzymes during Fermentation on Characteristics of Distillers’ Dried Grains with Solubles

Of proteins and processing: mechanisms of protein damage upon rapeseed processing and their effects on nutritional value

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