Microwave-assisted organic acid pretreatment for enzymatic hydrolysis of rice straw

Gong, Guangbi; Liu, Danyu; Huang, Yudong

doi:10.1016/j.biosystemseng.2010.05.012

Cited by 105 publications

(52 citation statements)

References 10 publications

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“…In comparison, IL pretreated sample has no intact or fibrous structure these observations consistent with higher rate of hydrolysis consequently high yield of glucose (Fig. 4b) (Gong et al, 2010, Tiwari et al, 2018. Fourior transform infrared FTIR analysis FTIR spectra of untreated and pretreated with IL of sugarcane leaves waste are shown in Figure 5.…”

Section: Scanning Electron Microscopy Analysissupporting

confidence: 53%

“…A deep peak at 1026 cm -1 in pretreated sugarcane leaves showed the presence of β-glycisidic bond of cellulose between sugar units (Tiwari et al, 2018). Additional peaks between 1405 cm -1 to 1771 cm -1 and 3500 cm -1 to 3852 cm -1 in pretreated sample indicated the removal of lignin and structural damage in lignocellulosic biomasses (Gong et al, 2010).…”

Section: Scanning Electron Microscopy Analysismentioning

confidence: 99%

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Enhanced Saccharification in Sugarcane Leaves by Combined Pretreatment of Ionic Liquid and Aqueous Ammonia

Singh¹,

Dubey²,

Verma³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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Section: Scanning Electron Microscopy Analysissupporting

confidence: 53%

Section: Scanning Electron Microscopy Analysismentioning

confidence: 99%

Enhanced Saccharification in Sugarcane Leaves by Combined Pretreatment of Ionic Liquid and Aqueous Ammonia

Singh¹,

Dubey²,

Verma³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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“…On the other hand, insufficient pretreatment duration might prevent MI from supplying sufficient energy to excite the dipoles at the surface of the biomass (Gong et al 2010). In this study, 6-min pretreatment seemed to be sufficient to facilitate sulfuric acid hydrolysis of carbohydrates in the SW.…”

Section: Effect Of Pretreatment Durationmentioning

confidence: 77%

Transformation of Starchy Lignocellulosic Biomass to Ethanol using Ragi Tapai Synergized with Microwave Irradiation Pretreatment

Diong¹,

Ngoh²,

Chua³

2016

BioResources

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Ethanol production strategy was studied using multiple strain microbes from microwave irradiation (MI) pretreated sago waste. Sago waste (SW) was MI-pretreated for reducing sugars production using 2 heating media (water and sulfuric acid) under pretreatment conditions including MI power, pretreatment duration, and solid loading. When water was used, the pretreatment parameters were optimized using Box-Behnken Design (BBD). However, gelatinized starch and charring of SW led to an insignificant quadratic model. To mitigate the gelatinization problem while determining the best MI pretreatment conditions, water was substituted by sulfuric acid using single factor method. The highest reducing sugar yield of 261.5 mg/g SW was achieved at 7.5% solid loading, 6 min pretreatment duration, and 300 W MI power. The effectiveness of the pretreatment was ascertained by field-emission scanning electron microscopy (FESEM) and chemical-composition analysis. When fermenting MI-pretreated SW using ragi tapai, simultaneous saccharification of starch and ethanol production was evidenced from the sugar/ethanol profile. A resulted yield of 7.24 g ethanol/100 g SW confirmed the fermentability of MIpretreated SW. The ethanol production was well fitted into the modified Gompertz model.

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“…Microwave heating is direct, rapid and uniform. The technology is considered a green technology because it consumes less energy than that of conventional heating, it reduces emissions and helps protect the environment because it does not produce wastewater, waste gas or other waste products [4]. To obtain better results, microwave pretreatment is usually combined with chemical pretreatment.…”

Section: Introductionmentioning

confidence: 99%

Disruption of Oil Palm Empty Fruit Bunches by Microwave-assisted Oxalic Acid Pretreatment

Solihat

Sari

Risanto

et al. 2017

J. Math. Fund. Sci.

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Abstract. Developing an effective pretreatment for the conversion of lignocellulosic biomass to ethanol is an important effort in reducing the cost of this process. Microwave-assisted pretreatment is considered a green technology that can effectively break down lignocellulosic structures. The objective of this study was to investigate the most effective temperature for microwave-assisted oxalic acid pretreatment regarding the structural characteristic changes of oil palm empty fruit bunches (OPEFB) fibers. The fibers were subjected to microwave-assisted oxalic acid pretreatment at 160-200 °C with 2.5 minutes heating time and a liquid to solid ratio of 10. The effectiveness of the pretreatment was determined based on its delignification selectivity, morphological characteristics, and functional group changes. Microwave irradiation of OPEFB fibers at 180 ºC was effective in increasing the cellulose content by 24%. This pretreatment resulted in 1.82 delignification selectivity. More than 50% of the hemicellulose of the OPEFB was removed after this treatment, which was confirmed by a decrease of the absorption bands of functional groups at 1732 cm -1 . The increase of pretreatment temperature disrupted the morphological structure of the OPEFB and removed its hemicellulose but did not change its functional groups and lignin content.

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Microwave-assisted organic acid pretreatment for enzymatic hydrolysis of rice straw

Cited by 105 publications

References 10 publications

Enhanced Saccharification in Sugarcane Leaves by Combined Pretreatment of Ionic Liquid and Aqueous Ammonia

Enhanced Saccharification in Sugarcane Leaves by Combined Pretreatment of Ionic Liquid and Aqueous Ammonia

Transformation of Starchy Lignocellulosic Biomass to Ethanol using Ragi Tapai Synergized with Microwave Irradiation Pretreatment

Disruption of Oil Palm Empty Fruit Bunches by Microwave-assisted Oxalic Acid Pretreatment

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