Protein enrichment of corn cob heteroxylan waste slurry by thermophilic aerobic digestion using Bacillusstearothermophilus

Ugwuanyi, J. Obeta; Harvey, Linda M.; McNeil, Brian

doi:10.1016/j.biortech.2008.01.025

Cited by 19 publications

(15 citation statements)

References 38 publications

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“…Nonetheless, a decrease in hemicellulose content (37.71 %) similar to the one used in the present study was evidenced with the fermentation of corn cob by Bacillus stearothermophilus (UGWUANYI et al, 2008). …”

Section: Resultssupporting

confidence: 69%

“…Ugwuanyi et al (2008) have reported the same effect. As reported by Hu et al (2012), the supplementation with 2.5% of nitrogen source is necessary to increase the protein content from 5-6 % to 16-20%.…”

Section: Resultssupporting

confidence: 52%

“…Amongst the various studied nitrogen sources, ammonium sulphate (0.6% w/w) has contributed to the maximum enrichment of protein (24.30%) when compared to in natura bran (RUDRAVARAM et al, 2006). The protein enrichment of corn cob was from 5.69% to 18.96 %, an increase of 258 % using Bacillus stearothermophilus was maximum at 55°C, pH 7.0, aeration rate of 1.0 vvm (volume of air per volume of the medium per minute), 5% inoculum (v/v), and supplementation with vitamin and mineral mixture (UGWUANYI et al, 2008).…”

Section: Resultsmentioning

confidence: 94%

“…The climatic conditions resulting from periodic droughts lead to scarce, and irregularity rainfall associated and high temperatures, affecting the availability and quality of fodder for livestock. Reduced milk production or the need for increasing the supply of commercial feed concentrates for animals so as to meet their nutritional requirements decreases the profitability of the sector (WANDERLEY et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Solid State Fermentation on Nutritional Content and Evaluation of Degradability in Cactus Pear

Santos¹,

Diniz²,

Brito³

et al. 2015

Rev. Caatinga

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-The process of protein enrichment of cactus pear (Nopalea cochenillifera (L.) Salm Dyck) by solid state fermentation with the use of Aspergillus niger and Rhyzopus sp. was studied for improving the nutritional value of this cactus species for use as animal feed. The experiments were conducted in the Agroindustrial Waste Laboratory of State University of Southwest Bahia (Brazil). To this end, we have evaluated the effects of biotransformation on the levels of protein, cellulose, hemicellulose, and lignin, as well as the potential degradability. Bioconversion was carried out using cactus pear as the only substrate, without supplementation with nitrogen, mineral and vitamin sources. The fermentation with Aspergillus niger promoted a 78% increase in/of protein content and reductions of cellulose, hemicellulose, and lignin of 40%, 36%, and 28%, respectively. Degradability, in turn, was observed to have increased by 66 % after 240 h. On the other hand, the fermentation with Rhyzopus sp. was less efficient, with a 69% increase in protein content, and reductions in cellulose, hemicellulose, and lignin contents of 30%, 28%, and 18%. In turn, degradability was seen to have increased by 51%. The fermentation of cactus pear by Aspergillus niger and Rhyzopus sp. exhibited the protein enrichment and increased protein degradability of this Cactaceae. Moreover, this is the most ever efficient micro-organism used in bioconversion. Based on the results, bioconversion of cactus is an excellent alternative to ruminant feeding in arid or semi-arid land. . O efeito da fermentação em estado sólido sobre a palma forrageira foi avaliado comparando os teores de proteína, celulose, hemicelulose e lignina, além da degradabilidade potencial, com os valores in natura. A bioconversão foi realizada utilizando como único substrato a palma forrageira e água, sem a suplementação de fontes alternativas de nitrogênio, minerais ou vitaminas. O fungo Aspergillus niger elevou os teores proteicos em aproximadamente 78% e promoveu a redução nos teores de celulose, hemicelulose e lignina em aproximadamente 40%, 36% e 28%, respectivamente. Por sua vez essa biotransformação elevou a degradabilidade potencial em 66% após 240 h. Enquanto que o fungo Rhyzopus sp. demonstrou ser menos eficiência no enriquecimento proteico, com um aumento de aproximadamente 69 %, e a redução no teores de celulose, hemicelulose e lignina de 30%, 28% e 18%. Ainda para este fungo a degradabilidade potencial teve uma elevação de aproximadamente 51%. Portanto a fermentação da palma forrageira com auxílio dos fungos filamentosos Aspergillus niger e Rhyzopus sp. promoveram um enriquecimento nos teores proteicos desta cactacea além de elevar a sua degradabilidade potencial. Com base nesses resultados, a bioconversão da palma forrageira empregando o método de fermentação em estado sólido pode ser uma excelente alternativa na alimentação de ruminantes em terras áridas ou semiáridas.

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Section: Resultssupporting

confidence: 69%

Section: Resultssupporting

confidence: 52%

Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Effect of Solid State Fermentation on Nutritional Content and Evaluation of Degradability in Cactus Pear

Santos¹,

Diniz²,

Brito³

et al. 2015

Rev. Caatinga

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“…Among the various AA, the enhancement of digestibility was observed for Met, Cys, Arg, Asp, Glu, and Ser. The observed protein quality might be due to the secretion of enzymes such as cellulase, phytase, and xylanase during the growth of microbes to convert the fibre materials for monosaccharide (Ugwuanyi et al, 2008 (Mugula et al, 2003). Pranoto et al (2013) reported that, during fermentation, proteolysis could produce more peptides and AA and therefore increase digestible and soluble protein portion.…”

Section: Resultsmentioning

confidence: 99%

Effect of Solid State Fermentation on Nutrient Content and Ileal Amino Acids Digestibility of Canola Meal in Broiler Chickens

Ahmed¹,

Zulkifli²,

Farjam³

et al. 2014

Italian Journal of Animal Science

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The aim of the current study was to investigate the potential of Lactobacillus salivarius solid state fermentation for reduction of glucosinolate content in canola meal (CM) as well as the improvement of its nutrient digestibility for broiler chickens. Canola meal was treated with the L. salivarius in solid state fermentation for 30 days. Nutrients ileal digestibility was tested using 42-day-old broilers fed by either CM or fermented CM (FCM) as the sole source of energy and protein. The results showed that fermentation of CM using L. salivarius reduced glucosinolate content of CM by 38%. The digestibility coefficient was improved significantly for crude protein, Met, Cys, Arg, Asp, Glu, and Ser in FCM compared to CM. However, apparent metabolisable energy of CM was not affected by fermentation. It appears that fermentation treatment of CM using L. salivarius may improve the overall nutritive value of CM for broiler chickens, reducing its total glucosinolate and crude fibre content by 38 and 16%, respectively.

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Production of Protein-Enriched Feed Using Agro-Industrial Residues as Substrates

Ugwuanyi

McNeil

Harvey

2009

Biotechnology for Agro-Industrial Residues Utilisation

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Protein enrichment of corn cob heteroxylan waste slurry by thermophilic aerobic digestion using Bacillusstearothermophilus

Cited by 19 publications

References 38 publications

Effect of Solid State Fermentation on Nutritional Content and Evaluation of Degradability in Cactus Pear

Effect of Solid State Fermentation on Nutritional Content and Evaluation of Degradability in Cactus Pear

Effect of Solid State Fermentation on Nutrient Content and Ileal Amino Acids Digestibility of Canola Meal in Broiler Chickens

Production of Protein-Enriched Feed Using Agro-Industrial Residues as Substrates

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