Fungal solid-state fermentation and various methods of enhancement in cellulase production

Yoon, Li Wan; Ang, Teck Nam; Ngoh, Gek Cheng; Chua, Adeline Seak May

doi:10.1016/j.biombioe.2014.05.013

Cited by 197 publications

(137 citation statements)

References 110 publications

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“…7 Hence, a suitable operating condition during SSF must be optimized carefully. Yoon et al 8 reveals that fermentation medium used by most of the researchers for cellulase production consists of carbon source, nitrogen source, phosphorus source, trace element solution and other minerals and finds a general trend whereby peptone is the potential nitrogen source that stimulates the production of all the components in a complete cellulase system. Elisashvili et al 9 showed that the enhancement of endoglucanase production from 20 U·cm -3 to a range of 28 On the other hand, the moisture content during SSF is another important parameter for bioenergy production.…”

Section: Introductionmentioning

confidence: 98%

Biohydrogen Production from Mushroom Cultivation Waste by Anaerobic Solid‐state Fermentation

Lin

Lay

Chen

et al. 2015

J Chinese Chemical Soc

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Mushroom cultivation waste (MCW) is a polypropylene bag stuffed with wood flour and nutrients for growing mushroom, which is a feasible feedstock for anaerobic biohydrogen production owing to its abundant availability, high organic and nutrient content. This study optimized the seed inoculum from various waste sludges (sewage sludge, cow dung and pig slurry), nutrient addition and operation conditions (moisture content and MCW powder particle size) for maximal biohydrogen production by solid-state fermentation (SSF). SSF batch test was operated at a MCW 3 g total volatile solid (TVS)/L, temperature 55°Cand rotation speed of 15 rpm with a vertical rotative shaker. The peak hydrogen production performance of hydrogen production rate (HPR) 9.50 mol H 2 /kg-d and hydrogen yield (HY) 0.29 mmol H 2 /g TVS) are obtained using sewage sludge 2 seed inoculum, nutrients addition, moisture content 70% and particle size of 1.190~0.590 mm. The results show that the MCW has the potential for hydrogen production by anaerobic mixed microflora using solid-state fermentation. The bioenergy of 1842 kWh while using SSF to conver MCW to produce biohydrogen and it could reduce CO 2 emission of 114-178 kg per year comparing using fossil fuel such as coal, fuel oil and natural gas.

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Section: Introductionmentioning

confidence: 98%

Biohydrogen Production from Mushroom Cultivation Waste by Anaerobic Solid‐state Fermentation

Lin

Lay

Chen

et al. 2015

J Chinese Chemical Soc

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“…The effect mentioned above implies a decrease of porosity of the solid material, creates problems with the oxygen diffusion, and therefore inhibits fungal development (Zhang et al 2013;Veerabhadrappa et al 2014). Additionally, an excessively humid environment could be a factor for creating the culture conditions for unwanted microorganisms, increasing the risk of contamination (Yoon et al 2014;Farinas 2015).…”

Section: Optimization For Spore Production Via Bbmmentioning

confidence: 99%

“…No fungal growth was observed at the lower moisture level (40%), which may have been due to the lack of nutrient diffusion. Low nutrient diffusion is a limiting factor for fungal development and desired products, such as biomass, enzymes, and secondary metabolites, among others (Yoon et al 2014;Farinas 2015). Low water content also affects the degree of swelling and produces higher water tension (Veerabhadrappa et al 2014).…”

Section: Optimization For Spore Production Via Bbmmentioning

confidence: 99%

Utilization of Lignocellulose-based Orange Peel Waste for Induced Sporulation of Trichoderma asperellum via Box-Behnken Matrix Design

Quiroz¹,

Carrillo-Nieves²,

Aguilar‐Zárate³

et al. 2018

BioResources

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The feasibility of using orange peel residues as a substrate for induced sporulation of Trichoderma asperellum was evaluated. The Box-Behnken matrix (BBM) design was used to screen the effects of several parameters, including the effect of pH, inoculum, and moisture under solid-state fermentation culture conditions. The study was performed in two experimental steps (screening and optimization). Moisture content and pH were determined to be the most influential parameters on spore production during the screening stage. A Box-Behnken design was used to optimize and to define the interaction of the selected parameters. The moisture content was determined as the most significant parameter affecting spore production. An inoculum of 1 × 10 6 spores g -1 , pH 6.07, and moisture content of 69.0% was the combination of conditions observed to achieve the maximum production of 2.04 × 10 9 spores g -1 . The experimental value of 2.16 × 10 9 spores g -1 (from the experimental model) showed a good fit to the regressed model, with a standard error of 5%. Based on this work, a high yield of spores was obtained at 144 h of cultivation time, indicating that it is a feasible approach to use orange peel as a substrate for biomass and spore production.

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“…Particle size of the material affects the success of solid state fermentation process, partly because it determines the porosity and the specific area of the media (Yoon et al, 2014). Size reducing of the cassava stalk into 50 mesh can support better growth of Aspergillus niger FNCC 6114, because: 1).…”

Section: Sem Micrograph After Fermentationmentioning

confidence: 99%

Effect of Lime Pretreatment on Microstructure of Cassava Stalk Fibers and Growth of Aspergillus niger

et al. 2018

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Cassava stalk can be converted into sugar-based product by using microorganism. Unfortunately, lignin act as a barrier of optimal bioconversion. Cassava stalk needs pretreatment process for removing this barrier. The effect of lime pretreatment on microstructure of cassava stalk fibers and the growth of Aspergillus niger FNCC 6114 were observed in this research. The cassava stalks were reduced into 0.147-0.297 mm size and pretreated with 1 % Ca(OH)2. Lime pretreated and unpretreated cassava stalk was used as solid medium for Aspegillus niger FNCC 6114. The effect of pretreatment method on fibers microstructure of cassava stalk was evaluated through SEM micrograph. The growth and metabolism activities of Aspergillus niger FNCC 6114 were monitored through SEM micrograph of media after fermentation. The other parameters examined were changes in glucosamine, reducing sugar levels, and spores' quantity. Lime pretreatment altered microstructure of cassava stalk fibers. However, cassava stalk without lime pretreatment gave better growth of Aspergillus niger FNCC 6144 based on metabolism activities parameters. Cassava stalks is suitable as media for Aspergillus niger FNCC 6144 through solid state fermentation. For better growth of Aspergillus niger FNCC 6144 fine-sized cassava stalk should not be lime pretreated. The results of this study provide information about the pretreatment of cassava stems which was effective in supporting the growth of Aspergillus niger. Enhancements the utilization of cassava stems by using fungi, for example Aspergillus niger can overcome the accumulation of organic waste that can interfere with environmental sustainability.

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Fungal solid-state fermentation and various methods of enhancement in cellulase production

Cited by 197 publications

References 110 publications

Biohydrogen Production from Mushroom Cultivation Waste by Anaerobic Solid‐state Fermentation

Biohydrogen Production from Mushroom Cultivation Waste by Anaerobic Solid‐state Fermentation

Utilization of Lignocellulose-based Orange Peel Waste for Induced Sporulation of Trichoderma asperellum via Box-Behnken Matrix Design

Effect of Lime Pretreatment on Microstructure of Cassava Stalk Fibers and Growth of Aspergillus niger

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