Selection of Fungal Isolates for Biopulping of Rice Straw

El-Din, Said M. Badr; Kheiralla, Zeinab H.; Malek, Saad M. Abdel; Aziz, Douaa H. Abdel

doi:10.15376/biores.8.4.4969-4980

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…Other studies also showed that ramie biopulping (Boehmeria nivea) by Marasmius sp. reduced 8 points of Kappa Numbers from the control treatment during 7 days of incubation [22], and biopulping rice straw with Pleurotus ostreatus which Kappa Numbers reduced from 8.6 points to 7.8 points in 5 days incubation time [23]. Biodelignification of ramie chips using Penicillium sp.…”

Section: Ramie Pulpmentioning

confidence: 94%

Optimization of Laccase Production from Penicillium sp. LX/08 for Biodelignification of Ramie (Boehmeria nivea L. Gaud)

Wulandari

Illiyyin

Risdianto

2020

AMM

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Ramie solid waste as chips can be used as raw material for pulp. Ligninolytic enzymes of laccase widely used for pretreatment of the pulping process of ramie chips by biodelignification using laccase produced by Penicillium sp. LX/08 has been done. This study aims to obtain optimal concentrations of lignin and CuSO4 as enzyme inducers to increase laccase production from Penicillium sp. LX/08 during biodelignification process and its effect on the quality of ramie pulp. The biodelignification process of ramie chips was carried out by solid state fermentation (SSF) method with six days incubation time. Two inducer type treatment factors (CuSO4 and lignin), and variations in the concentration of each lignin (0.25 g/L, 0.5 g/L, 0.75 g/L) and CuSO4 (0.25 mM, 0.5 mM, 0.75 mM) were investigated in this study. The pulping process was carried out by the soda process in a digester under conditions: 12% active alkaline, temperature of 165°C for 3.5 hours. The results showed that 0.75 mM and 0.5 g/L of lignin were the optimal concentrations which could increase the laccase activity of Penicillium sp. LX/08 by 343 U/L and 25,8 U/L, respectively. The quality of ramie pulp showed a decrease in Kappa Number of 9,34% with an increase in pulp yield to 55,43%. Based on these results, the pretreatment method using laccase produced by Penicillium sp. LX/08 can assist the pulping process of ramie.

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Section: Ramie Pulpmentioning

confidence: 94%

Optimization of Laccase Production from Penicillium sp. LX/08 for Biodelignification of Ramie (Boehmeria nivea L. Gaud)

Wulandari

Illiyyin

Risdianto

2020

AMM

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“…With regard to production and utilization of wood, decay is generally harmful and adverse, resulting in the decline of material properties. Decay is an inevitable process and it is not always disadvantageous to production; such as biopulping can be regarded as a decay under control for some microbial species only lead to lignin degradation in such a "decay" process (Badr El-Din et al 2013). Natural decay always happens.…”

Section: Introductionmentioning

confidence: 99%

Variation of Chemical Constituents of Qinghai Spruce in Natural Decay Process, Including Furfural Production

Song

Sun

2017

BioResources

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Chemical constituents of naturally decayed Qinghai spruce branches were analyzed in terms of holocellulose, lignin, and pentosan. The holocellulose content declined from 57.98% to 35.29% in one year. The rate of change may be related to weather conditions, i.e., the rate of variation was higher when the temperature was high and rainfall was abundant. The changes in lignin and pentosan relative content were completely different from holocellulose; they increased first and then decreased during the decay period. Compared with fresh raw materials, pentosan content (from 14.44% to 25.9%) was increased by 79.4% after four months decay. The highest yield of furfural (10.2%) prepared by a two-stage method from decayed Qinghai spruce branches was similar to the reported yield from corncobs.

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“…In addition to wood, white rot fungi grows on a wide range of lignocellulose materials originating from agricultural waste that would otherwise present problems in disposal, and by means of the fungi these materials can be turned into useful products such as biofuels, animal feeds, or paper, or further biorefined into potentially valuable products (Sánchez 2009;Menon and Rao 2012). The growth of different types of white rot fungi has been examined on corn stover (Shrestha et al 2008), wheat straw (Hatakka 1983;Moyson and Verachtert 1991;Wan and Li 2010;Arora et al 2011;Shrivastava et al 2011), rice straw (El-Din et al 2013), ula grass (Carex meyeriana) (Mao et al 2013), and Bermuda grass (Gamble et al 1994).…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of Different Genotypes of Miscanthus by Wood Rot Fungi

Baker¹,

Winters²,

Hale³

2016

BioResources

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a Miscanthus, which is comprised of several different genotypes, is an important high-biomass crop with applications in the biofuel industry and in the formation of biocomposite materials. The overall composition of Miscanthus can be altered via degradation with wood rot fungi. The starting composition revealed that the cellulose content of Miscanthus x giganteus was higher than that in Miscanthus sacchariflorus and that the lignin contents were similar in both genotypes. Of the wood rot fungi, only Lentinus edodes appeared to have completely colonized M. sacchariflorus and showed significant degradation. In contrast, all of the brown rot fungi showed partial colonization of both Miscanthus genotypes and had little effect on the fibrous composition. Cellulose degradation by some white rot fungi increased with cellulose content whereas cellulose degradation by other fungi was independent of cellulose content. All of the white rot fungi showed similar rates of lignin degradation, except for Pleurotus ostreatus, which was higher on M. sacchariflorus. The effect of the moisture contents of Miscanthus on cellulose and lignin decomposition by Phlebiopsis gigantea SPLog6 and Coniophora puteana 11E was also investigated. These results revealed subtle differences in the growth of white rot fungi on different Miscanthus genotypes.

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Selection of Fungal Isolates for Biopulping of Rice Straw

Cited by 4 publications

References 28 publications

Optimization of Laccase Production from <i>Penicillium</i> sp. LX/08 for Biodelignification of Ramie (<i>Boehmeria nivea</i> L. Gaud)

Optimization of Laccase Production from <i>Penicillium</i> sp. LX/08 for Biodelignification of Ramie (<i>Boehmeria nivea</i> L. Gaud)

Variation of Chemical Constituents of Qinghai Spruce in Natural Decay Process, Including Furfural Production

Biodegradation of Different Genotypes of Miscanthus by Wood Rot Fungi

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