Ozone treatment of spent medium from Auricularia polytricha cultivation for enzymatic saccharification and subsequent ethanol production

Irawati, Denny; Takashima, Yuya; Ueda, Chisato; Sutapa, Johanes Pramana Gentur; Marsoem, Sri Nugroho; Ishiguri, Futoshi; Iizuka, Kazuya; Yoshizawa, Nobuo; Yokota, Shinso

doi:10.1007/s10086-013-1356-0

Cited by 8 publications

(5 citation statements)

References 22 publications

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“…The amount of holocellulose, α-cellulose, and hemicellulose of Oyster mushroom cultivation SM are 49.3-55.0%, 24.6-28.0%, dan 24.7-27.0%, respectively (Table 1). Compared to the contents of holocellulose, α-cellulose, and hemicellulose of Sengon wood from previous research, which are 80.8 and 45.3% [5], respectively; the contents in this research are lower. This is probably due to the degradation activities and carbohydrate adsorption (both α-cellulose and hemicellulose) by the mushroom during its growth period.…”

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confidence: 87%

“…The utilization of mushroom cultivation SM as bioethanol raw material has several advantages, including abundant quantities, high glucan, and xylan content, and lower lignin content compared to fresh wood so that it can shorten the bioethanol manufacturing process because it does not require pretreatment [2]. The previous studies showed a decrease in lignin content in Sengon sawdust, which was used as a medium for cultured ear mushrooms for 130 days, the results showed a decrease in lignin content of 71.7% of the control [5]. The lignocellulose structure of fungal media waste becomes more accessible to enzymes because some of the lignin content has been degraded by fungi [6].…”

Section: Introductionmentioning

confidence: 98%

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Effect of Simultaneous Saccharification and Fermentation (SSF) Time on Ethanol Production from Spent Medium of Oyster Mushroom (Pleurotus ostreatus)

Irawati

Pradipta

Umar

2020

KEM

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Bioethanol is considered as the most promising prospective renewable energy source. One of the most potential lignocellulose material for bioethanol feedstock is spent media (SM) of edible mushroom. Pleurotus ostreatus is more selective to degrade lignin than holocellulose component, therefore the SM is very compatible as a bioethanol feedstock. This study was observed the influence of variation of cultivation time of oyster mushroom (P.ostreatus) into the SM chemical content and its ethanol production yield by using simultaneous saccharification and fermentation method. The results showed that the difference of cultivation time did not show the significant result on SM chemical content, except the hot water soluble extractive content. The highest hot water soluble extractive content was found in SM with 110 days of cultivation time (27.68%). The highest hydrolysis rate was found at 90 days of cultivation time (15.65%) and 48 and 72 hours saccharification time (14.77% and 14.78%). The highest reducing sugar content was found at 110 days of cultivation time (4.89 g/L). The highest ethanol content was found in SM with a combination of 90 days cultivation time and 48 hours saccharification time (1.696 g/L). The 90 days cultivation time was enough to produce SM that can be used as raw material for bio-ethanol production.

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confidence: 87%

Section: Introductionmentioning

confidence: 98%

Effect of Simultaneous Saccharification and Fermentation (SSF) Time on Ethanol Production from Spent Medium of Oyster Mushroom (Pleurotus ostreatus)

Irawati

Pradipta

Umar

2020

KEM

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“…Ozone has been applied as a pretreatment method for enzymatic saccharification of lignocellulosic biomass, such as herbaceous plants, wood, and SCM [15][16][17][18]. Sugimoto et al [17] treated Japanese cedar (Cryptomeria japonica) sawdust with ozone, resulting in an increase in sugar yield by enzymatic saccharification associated with an increase in lignin degradation by the ozone pretreatment.…”

Section: Introductionmentioning

confidence: 98%

Ozone oxidation pretreatment for enzymatic saccharification of spent culture media after Lentinula edodes cultivation

et al. 2014

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Ozone oxidation pretreatment was carried out on spent culture media (SCMs) after Lentinula edodes cultivation to improve fermentable sugar production by enzymatic saccharification. SCM samples treated with ozone for different treatment time under various moisture contents (MCs) were enzymatically saccharified, and hydrolysis weight decrease, reducing sugar yield, and monosaccharide yields were determined. Klason lignin content in SCM samples with 20 and 40 % MC was greatly decreased by ozone pretreatment for all ozone treatment time. In addition, in the ozone-treated sample at 40 % MC, the highest hydrolysis weight decrease after saccharification was obtained in the SCM sample treated for 1 h. After saccharification, glucose yield from the ozone-treated sample for 1 h was higher than that treated for 2 h. These results indicate that ozone treatment is effective to improve fermentable sugar production by enzymatic saccharification for the SCMs of L. edodes.

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“…Before chemical analysis, the samples were ground and then sieved to collect samples in 40-60 mesh size. The amounts of ethanol-toluene extracts, hot water extracts, hollocellulose, α-cellulose, hemicellulose, Klason lignin, and acid-soluble lignin of the sample were determined by previous methods [6].…”

Section: Methodsmentioning

confidence: 99%

Utilization of Casuarina montana Pruning Waste Biomass as Chemical or Energy Resources

Irawati

Usman

Pradipta

2020

KEM

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In Indonesia, Casuarina montana usually planted as a road shading tree or in the home garden. This tree will be pruned periodically to reduce the amount of the canopy and maintain the beauty of its shape. Pruning biomass usually consists of the tip of the stem, branches, twigs, and leaves. The biomass has potency for energy or chemicals sources. This study aims to know about energy potential of various types of C. montana biomass and charcoal properties in different carbonization temperature. Six types of biomass from pruning waste of C. montana were used as samples. Branch has high potency as α-cellulose source, while bark including twig bark, branch bark, or stem bark have high potency as lignin source. When it is used as direct fuel (firewood), all biomass of C. montana possess quite high calorific value. When it is converted to be charcoal, temperature of 300°C is good for carbonizing the biomass twig, twig bark, branch bark, and stem bark, while biomass branch and stem need temperature of 400°C.

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Ozone treatment of spent medium from Auricularia polytricha cultivation for enzymatic saccharification and subsequent ethanol production

Cited by 8 publications

References 22 publications

Effect of Simultaneous Saccharification and Fermentation (SSF) Time on Ethanol Production from Spent Medium of Oyster Mushroom (<i>Pleurotus ostreatus</i>)

Effect of Simultaneous Saccharification and Fermentation (SSF) Time on Ethanol Production from Spent Medium of Oyster Mushroom (<i>Pleurotus ostreatus</i>)

Ozone oxidation pretreatment for enzymatic saccharification of spent culture media after Lentinula edodes cultivation

Utilization of <i>Casuarina montana</i> Pruning Waste Biomass as Chemical or Energy Resources

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