Effects of Plant Cell-Wall-Degrading Enzymes and Lactic Acid Bacteria on Silage Fermentation and Composition

Kung, L.; Tung, Rosalind; Maciorowski, K.G.; Buffum, K.; Knutsen, K.; Aimutis, William R.

doi:10.3168/jds.s0022-0302(91)78623-2

Cited by 64 publications

(43 citation statements)

References 18 publications

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“…However, the LA concentration recorded in our study was lower than 160 g LA/kg DM reported in sweet sorghum silage (Xing et al, 2009) but consistent with that reported by Podkowka & Podkowka (2011). It has been reported that homofermentative LAB or LAB+enzyme inoculation has positive effects on the silage fermentation by increasing LA compared with the control (Kung et al, 1991, Chen et al, 1994. As expected, inoculation increased (P <0.05) the concentration of LA compared with the control.…”

Section: Resultssupporting

confidence: 33%

“…Consequently, the addition of enzymes to forage at ensiling has been reported to degrade silage cell wall and increase the availability of WSC that serve as substrate for LAB (McDonald et al, 1991;Spoelstra et al, 1992;Selmer-Olsen et al, 1993;Sheperd & Kung, 1996). Therefore, when LAB is combined with enzymes during ensiling, a stronger effect should be expected because more fermentable sugars will be released to produce more lactic acid in comparison with other fermentation products (Kung et al, 1991, Chen et al, 1994. In contrast, Stokes (1992) reported reduced enzyme activity in the presence of a LAB inoculant.…”

Section: Introductionmentioning

confidence: 99%

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Effects of bacterial inoculants and an enzyme on the fermentation quality and aerobic stability of ensiled whole-crop sweet sorghum

Nkosi¹,

Vadlani²,

Brijwani³

et al. 2012

SA J. An. Sci.

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________________________________________________________________________________ AbstractA study was conducted to evaluate the effects of bacterial inoculation and cellulase on the fermentation quality of ensiled whole-crop sweet sorghum (WCSS, Sorghum bicolor L. Moench). The WCSS (323 g dry matter (DM)/kg, 251 g water soluble carbohydrates (WSC)/kg DM, 43 g crude protein (CP)/kg DM and 439 g neutral detergent fibre (NDF)/kg DM) was ensiled with i) no additive (control); ii) Lactobacillus buchneri (LB); iii) Lactobacillus plantarum (LP); and iv) LB+E, a combination of LB and enzyme. These treatments were ensiled in 1 L anaerobic jars for 25 days. The jars were opened on days 3, 7 and 15 to determine pH, while those of day 25 were sampled to determine nutrient composition, fermentation characteristics and aerobic stability. Inoculation reduced pH, butyric acid and ammonia-N and increased lactic acid content in sweet sorghum silage compared with the control. The aerobic stability of WCSS was improved with LB, while it was reduced with the homofermentative LP treatment compared with the control. The LB+E reduced the fibre, but increased residual WSC of silage. The aerobic stability of LB+E silage was lower than LB treated silage. Using enzymes to increase the WSC content of crops that already have high levels of WSC may result in reduced aerobic stability of silage. Further work is needed to evaluate these effects on silage produced on farm scale and on animal production performance. ________________________________________________________________________________

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Section: Resultssupporting

confidence: 33%

Section: Introductionmentioning

confidence: 99%

Effects of bacterial inoculants and an enzyme on the fermentation quality and aerobic stability of ensiled whole-crop sweet sorghum

Nkosi¹,

Vadlani²,

Brijwani³

et al. 2012

SA J. An. Sci.

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“…Os dados obtidos neste estudo discordam dos observados por Kung et al (1991) e Cai et al (1999, que observaram aumentos significativos nas concentrações do ácido lático com o uso de inoculantes. Entretanto, Bolsen et al (1992) demonstraram somente efeitos positivos sobre este parâmetro quando combinaram inoculante mais glicose, mas não quando utilizaram inoculante microbiano (L. plantarum e P. cerevisiae) ou glicose (2% da MS) separadamente.…”

Section: Resultsunclassified

Efeitos da adição de inoculantes microbianos sobre o perfil fermentativo da silagem de alfafa adicionada de polpa cítrica

Rodrigues

Almeida²,

Lucci

et al. 2004

R. Bras. Zootec.

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RESUMO -A cultura de alfafa (19% de MS), cortada com 10% dos perfilhos floridos, foi armazenada em 32 silos experimentais confeccionados a partir de baldes plásticos portando válvulas. A alfafa picada foi homogeneizada e submetida a quatro tratamentos com ou sem a adição de 12% de polpa cítrica peletizada: controle, Sil-All (S. Effects of Microbial Inoculants on Chemical Composition and Fermentation Characteristics of Alfalfa Silage Added with Citrus PulpABSTRACT -Alfalfa crop (19.0% DM) was harvested at 35 days and ensiled in 32 plastic experimental silos, consisting of four treatments with or without 12% of citrus pulp: control, Sil-All (S. faecium, P. acidilactici, L. plantarum, amylase, hemicellulase, and cellulase), Silobac (L. plantarum, S. faecium, and Lactobacillus sp.) and Pioneer 1174 (S. faecium and L. plantarum). Silos were opened 133 days after ensiling and sampled to proceed chemical analyses. Only in citrus pulp-free silage, all inoculants increased ethanol concentration; Pioneer increased pH, and Silobac decreased acetic acid concentration, compared to control. Independently of citrus pulp, all inoculants decreased DM losses; Silobac and Pioneer decreased IVDDM, and Pioneer increased NH 3 -N. Inoculants did not influence lactic, propionic and butyric acids concentrations and neither aerobic stability. Citrus pulp improved chemical composition and fermentation characteristics, but worsened DM losses and aerobic stability.

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“…For example, early work on silage microflora suggested that cellulases and hemicellulases are produced (195), whereas more recent work indicated that combinations of Lactobacillus plantarum and Pediococcus cerevisiae (Pediococcus damnosus) had negligible ability to degrade plant cell walls (147). Pectin methylesterase and polygalacturonate lyase activities have been detected in the spontaneous fermentation of cassava roots, but the study neither confirmed nor discounted the involvement of the LAB present in the fermentation (28).…”

Section: Polysaccharide-degrading Enzymesmentioning

confidence: 98%

Lactic Acid Bacteria as a Potential Source of Enzymes for Use in Vinification

Matthews

Grimaldi

Walker

et al. 2004

Appl Environ Microbiol

155

101

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Effects of Plant Cell-Wall-Degrading Enzymes and Lactic Acid Bacteria on Silage Fermentation and Composition

Cited by 64 publications

References 18 publications

Effects of bacterial inoculants and an enzyme on the fermentation quality and aerobic stability of ensiled whole-crop sweet sorghum

Effects of bacterial inoculants and an enzyme on the fermentation quality and aerobic stability of ensiled whole-crop sweet sorghum

Efeitos da adição de inoculantes microbianos sobre o perfil fermentativo da silagem de alfafa adicionada de polpa cítrica

Lactic Acid Bacteria as a Potential Source of Enzymes for Use in Vinification

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