The degradation and utilization of structural polysaccharides of sorghum straw by defined ruminal bacteria

Ben‐Ghedalia, D.; Miron, J.; Solomon, R.

doi:10.1016/0377-8401(93)90105-s

Cited by 4 publications

(4 citation statements)

References 21 publications

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“…The surface morphology of all the samples performed by SEM indicate that steam explosion may damage cellulose, degrade hemicellulose, and reduce crystalline and amorphous cellulose, thereby favoring the adhesion of bacteria to the feed (Akin 1989;Benghedalia et al 1993). Steam explosion could potentially promote the digestion and absorption of feedstuff in the rumen, thereby improving its nutritional value.…”

Section: Discussionmentioning

confidence: 99%

Effect of steam explosion of oil palm frond and empty fruit bunch on nutrient composition and ruminal fermentation characteristics

Zhou

Yang

et al. 2019

Trop Anim Health Prod

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In this study, we evaluated the effect of steam explosion of oil palm frond (OPF) and oil palm empty fruit bunch (EFB) on nutrient composition and ruminal fermentation characteristics in vitro. The results showed that steam explosion decreased NDF (P < 0.01), ADF (P < 0.01), and hemicellulose content (P < 0.01) in OPF and EFB. Steam explosion improved the effective energy value of OPF and EFB. In vitro fermentation results revealed that 72-h gas production capacity of OPF and EFB increased by 12.60and 85.06% (P < 0.01), respectively, after steam explosion. Steam explosion had a tendency to improve the concentration of total volatile fatty acids (TVFA) (P = 0.082). In conclusion, steam explosion of OPF and EFB reduced NDF, ADF, and hemicellulose content and increased gas production and TVFA concentration.

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Section: Discussionmentioning

confidence: 99%

Effect of steam explosion of oil palm frond and empty fruit bunch on nutrient composition and ruminal fermentation characteristics

Zhou

Yang

et al. 2019

Trop Anim Health Prod

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“…Several cellulase genes from R. albus have been cloned and characterized (Ohmiya et al 1988;Poole et al 1990;Karita et al 1993;Takenaka et al 1993;Ohara et al 2000), and R. albus has been shown to have high hemicellulolytic activity (Ben-Ghedalia et al 1993). Several cellulase genes from R. albus have been cloned and characterized (Ohmiya et al 1988;Poole et al 1990;Karita et al 1993;Takenaka et al 1993;Ohara et al 2000), and R. albus has been shown to have high hemicellulolytic activity (Ben-Ghedalia et al 1993).…”

Section: Introductionmentioning

confidence: 99%

“…Ruminococcus albus is found at high density in the rumen and appears to be an active fiber degrader in a wide range of diets. Several cellulase genes from R. albus have been cloned and characterized (Ohmiya et al 1988;Poole et al 1990;Karita et al 1993;Takenaka et al 1993;Ohara et al 2000), and R. albus has been shown to have high hemicellulolytic activity (Ben-Ghedalia et al 1993). A better understanding of the xylanase gene of R. albus would provide useful information not only on hemicellulose digestion but also cell wall digestion in the rumen.…”

Section: Introductionmentioning

confidence: 99%

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Molecular cloning, nucleotide sequence and characteristics of a xylanase gene (xynA) from Ruminococcus albus 7

Nakamura¹,

Nagamine²,

Takénaka

et al. 2002

Animal Science Journal

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A 2.6-kb DNA fragment encoding a xylanase gene (xynA) was cloned from the rumen hemicellulolytic bacterium Ruminococcus albus 7. The deduced primary structure of the protein (XynA) was divided into a signal peptide region and 3 domains. Domain A was identified as a family 11 (G) catalytic domain, but one amino acid residue was replaced by another in an active site signature 1 of family 11. Domain B is a stabilizing domain for the catalytic domains of families 10 and 11. Deletion of domain B reduced stability of the xylanase at high temperature and at high and low pH. Domain B may be useful for protein engineering of xylanase. Domain C has sequence similarity to deacetylases and NodB proteins.

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Butyrivibrio

Willems¹,

Collins²

2015

Bergey's Manual of Systematics of Archaea and Bacteria

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Bu.ty.ri.vib'ri.o. N.L. adj. butyricus butyric; L. v. vibro to vibrate; N.L. n. Vibrio that which vibrates, a bacterial genus name; N.L. masc. n. Butyrivibrio a butyric vibrio. Firmicutes / “Clostridia” / Clostridiales / “Lachnospiraceae” / Butyrivibrio Gram‐stain‐negative , but structurally Gram‐positive , non‐sporeforming , strictly anaerobic straight to curved rods , 0.3–0.8 × 1.0–5.0 µm, occurring singly or in chains or filaments that may be helical. Motile by monotrichous or lophotrichous , polar or subpolar flagella or nonmotile . Chemo‐organotrophic , fermentative metabolism with carbohydrates as the main substrates. Glucose or maltose are fermented with butyrate as a major end product . Under some conditions some strains may produce large amounts of lactate and little butyrate. On the basis of 16S rRNA gene sequences, Butyrivibrio belongs to cluster XIVa of the Clostridium subphylum of the Gram‐positive bacteria. It is not monophyletic: Butyrivibrio fibrisolvens strains form two distinct subgroups which correspond to different genera and Butyrivibrio crossotus occupies a separate position (Willems et al., 1996). Butyrivibrio hungatei belongs to the Butyrivibrio fibrisolvens subgroup that also comprises the type strain of Butyrivibrio fibrisolvens (Kopečný et al., 2003). According to the 16S rRNA phylogenetic analysis presented in the roadmap to this volume (Figure 1), the genus Butyrivibrio is a member of the family Lachnospiraceae , order Clostridiales , class Clostridia in the phylum Firmicutes . Isolated from the rumen of ruminants and in human, rabbit, and horse feces. DNA G + C content ( mol %): 36–45 mol% ( T m and HPLC). Type species : Butyrivibrio fibrisolvens Bryant and Small 1956b, 19 AL .

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The degradation and utilization of structural polysaccharides of sorghum straw by defined ruminal bacteria

Cited by 4 publications

References 21 publications

Effect of steam explosion of oil palm frond and empty fruit bunch on nutrient composition and ruminal fermentation characteristics

Effect of steam explosion of oil palm frond and empty fruit bunch on nutrient composition and ruminal fermentation characteristics

Molecular cloning, nucleotide sequence and characteristics of a xylanase gene (xynA) from Ruminococcus albus 7

Butyrivibrio

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