Fungal treated lignocellulosic biomass as ruminant feed ingredient: A review

Kuijk, Sandra van; Sonnenberg, A.S.M.; Baars, J.J.P.; Hendriks, W.H.; Cone, J.W.

doi:10.1016/j.biotechadv.2014.10.014

Cited by 197 publications

(176 citation statements)

References 124 publications

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“…To enhance it by choosing the most efficient strain and culture conditions can make the method more effective by decreasing the treatment time and carbohydrate loss [63]. Important process factors affecting biological pre-treatment comprise the nature, component of biomass, and other factors such as variety of organisms engaged in incubation time and temperature, acidity (pH), inoculums concentration, moisture content and aeration rate [64].…”

Section: Factors Influencing Biological Pre-treatmentmentioning

confidence: 99%

“…Initial moisture content is essential for the establishment of microbial growth in the biomass. Initial moisture content critically affects the fungal growth and enzyme production and significantly affects lignin degradation [63]. The production and pH of lignolytic enzymes mainly affected by aeration.…”

Section: Factors Influencing Biological Pre-treatmentmentioning

confidence: 99%

“…Spores are the commonly used inoculum. Larger quantity of inoculum leads to shorter time for colonization of the substrate [63].…”

Section: Factors Influencing Biological Pre-treatmentmentioning

confidence: 99%

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Lignin Degradation by Fungal Pretreatment: A Review

Madadi¹,

Abbas²

2017

J Plant Pathol Microbiol

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Lignin is regarded as the most plentiful aromatic polymer contains both non-phenolic and phenolic structures. It makes the integral part of secondary wall and plays a significant role in water conduction in vascular plants. Many fungi, bacteria and insects have ability to decrease this lignin by producing enzymes. Among these fungi are the major player in degradation of lignin. These fungi produce enzymes such as lignin peroxidases and laccases. The well-known fungi which degrades lignin are white, brown, soft-rot fungi, and deuteromycetes. Currently these fungi are utilized to reduce lignin to produce ecofriendly bioenergy. The primary aim of this paper is to describe the lignin degradation by biological pre-treatment using fungi (white-, brown-soft-rot fungi and molds), as well as biochemical application. Besides, Molecular methods and enzymes regulation engaged in fungal pre-treatment and some of the factors affecting pretreatment will also be briefly discussed.

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Section: Factors Influencing Biological Pre-treatmentmentioning

confidence: 99%

Section: Factors Influencing Biological Pre-treatmentmentioning

confidence: 99%

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Lignin Degradation by Fungal Pretreatment: A Review

Madadi¹,

Abbas²

2017

J Plant Pathol Microbiol

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“…In recent studies, white-rot fungi inducing lignin degradation has been used to increase the digestibility of lignocellulose by ruminants [10][11][12]. It is possible, however, that ruminal digestion of woody lignocellulose is accelerated by exposing woody celluloses.…”

Section: Introductionmentioning

confidence: 99%

In vitro and in vivo ruminal fermentation of micronised wood powder for volatile fatty acid production in beef cattle

Hamano¹,

Takahashi²,

Agematu³

2017

Anim Husb Dairy Vet Sci

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The aim of the present study was to evaluate in vitro and in vivo ruminal fermentation of micronised wood powder in beef cattle. Micronised wood powder was prepared by pulverizing sapwood of Japanese cedar to a mean particle size of 52 µm. Ruminal fluid from four beef cows was anaerobically incubated with different amounts of micronised wood powder (50, 100, 200, or 400 mg per 30 ml rumen fluid) for 24 hours at 39°C. In the in vivo experiment, four cows were fed micronised wood powder for four weeks in a crossover design. During the initial feeding period of seven days, micronised wood powder was gradually increased to the equivalent to 0.3% of body weight, and then animals were fed micronised wood powder for three weeks at this level. In batch fermentation, total concentrations of volatile fatty acid were increased by micronised wood powder supplementation except at 50 mg. This response was mainly attributable to increased concentrations of the major volatile fatty acids of acetate, propionate, and butyrate. However, volatile fatty acid production from micronised wood powder by in vitro ruminal fermentation was low and limited, even when the supplemented levels were increased to 400 mg. The ruminal fermentability of micronised wood powder was shown by the lack of change in the volatile fatty acid profile during in vivo ruminal fermentation. Therefore, the present study found that ruminal microorganisms enable fermentation and digestion of lignocelluloses in micronised wood powder directly for volatile fatty acid production. However, further consideration of micronised wood powder, such as improvement in particle size or lignin, is needed to accelerate the fermentation kinetics of micronised wood powder in the rumen.

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“…Para obtener enzimas exógenas se han buscado diferentes alternativas que sean amigables con el medio ambiente y con la economía, como la propuesta por Sánchez et al, (2015), quienes utilizaron sustrato gastado de Pleurotus ostreatus, ya que produce enzimas fibrolíticas que pueden degradar materiales lignocelulósicos, debido al complejo enzimático que forman (celulasas, xilanasas, ligninoperoxidasa (Lip), manganeso peroxidasa (MnP), lacasas y peroxidasa versátil (VP) (Sánchez et al, 2015), con la finalidad de incrementar la disponibilidad de celulosa y hemicelulosa para los microorganismos ruminales (Van Kuijk et al, 2015). El objetivo del presente estudio fue evaluar los parámetros productivos de cabras alimentadas con extracto enzimático de sustrato gastado de Pleurotus ostreatus.…”

Section: Introductionunclassified

Uso de extracto enzimático de Pleurotus ostreatus sobre los parámetros productivos de cabras

et al. 2017

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RESUMENLa utilización de enzimas fibrolíticas exógenas comerciales (celulasas y xilanasas) ha sido ampliamente empleada en producción animal, con la finalidad de complementar la actividad de las enzimas endógenas, para lograr un incremento en la respuesta de producción de leche. En esta investigación se pretende utilizar como alternativa el uso de enzimas exógenas obtenidas del sustrato gastado de Pleurotus ostreatus con el fin de evaluar los parámetros productivos de cabras. Los resultados mostraron que la inclusión en la dieta de este extracto enzimático, tuvo efecto sobre la ganancia diaria de peso, producción de leche y consumo de alimento. Lo que sugiere que el extracto enzimático obtenido del sustrato gastado de Pleurotus ostreatus, puede ser una alternativa para mejorar los parámetros productivos de las cabras. Palabras clave: leche, extracto enzimático, cabras. ABSTRACTThe use of commercial exogenous fibrolytic enzymes (cellulases and xylanases) has been widely used in animal production, in order to complement the activity of the endogenous enzymes, to achieve an increase in milk production response. In this research, we intend to utilize as an alternative the use of exogenous enzymes obtained from the spent substrate of Pleurotus ostreatus in order to evaluate the productive parameters of goats. The results showed that the inclusion in the diet of this enzymatic extract had an effect on daily weight gain, milk production, and consumption. This suggests that the enzymatic extract obtained from the spent substrate of Pleurotus ostreatus may be an alternative to improve the productive parameters of goats. Keywords: milk, extract enzymatic, goat. INTRODUCCIÓNPara obtener mejor producción en rumiantes es importante considerar el tipo de forraje que es consumido por estos, debido a que aunque cuentan con una gran variedad de enzimas fibrolíticas en el rumen (celulasas, xilanasas, ß-glucanasas, pectinasas), que se encargan de intervenir en el proceso de degradación del material alimenticio; la presencia de compuestos indigestibles como la lignina, demeritan el aprovechamiento de los forrajes y con ello la producción de estos animales (González, 2002), tal es el caso de las

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Fungal treated lignocellulosic biomass as ruminant feed ingredient: A review

Cited by 197 publications

References 124 publications

Lignin Degradation by Fungal Pretreatment: A Review

Lignin Degradation by Fungal Pretreatment: A Review

In vitro and in vivo ruminal fermentation of micronised wood powder for volatile fatty acid production in beef cattle

Uso de extracto enzimático de Pleurotus ostreatus sobre los parámetros productivos de cabras

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