Sequential dilute acid and alkali pretreatment of corn stover: Sugar recovery efficiency and structural characterization

Lee, Jae Won; Kim, Ji Young; Jang, Hyun Min; Lee, Min Woo; Park, Jong

doi:10.1016/j.biortech.2015.01.116

Cited by 102 publications

(45 citation statements)

References 31 publications

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“…15 Bands show that symmetrical and asymmetrical C-H stretching linked to -CH 2 group, derived from ali- It is considered that toxic components such as furaldehyde, acetate and hydroxymethylfuraldehyde may occur due to the effect of acid pre-treatment, and they inhibit the fermentation. 17 Decrease in bioethanol yield in high acid concentrations of pre-treatment was observed. In the study of pre-treatment of Sargassum spp.…”

Section: Growth Of C Minutissima Microalgaementioning

confidence: 93%

Effect of Chemical Pre-treatments on Bioethanol Production from Chlorella minutissima

Sert

İnan

Özçimen

2018

ACSi

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In recent years, algal bioethanol production comes into prominence as a trend towards sustainable development. Due to being sustainable energy source and environmental friendly, bioethanol production from algae is becoming increasingly popular all over the world. However, yield of bioethanol production from algae is lower than first generation feedstock's currently, and needs to be improved. In order to increase bioethanol yield, pre-treatments should be performed as cell disruption process on algal biomass. For this reason, researchers investigate the most appropriate pre-treatment method and its parameters for high yield bioethanol production from algae. In this study, cultivated Chlorella minutissima was utilized for bioethanol production. Effects of pre-treatment method (dilute acid and alkaline), chemical concentration, pre-treatment temperature and pre-treatment time on bioethanol yield were investigated. It was found that, the highest bioethanol yield was obtained as 18.52% with acid pre-treatment at pre-treatment temperature of 100 °C and pre-treatment time of 60 minutes.

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Section: Growth Of C Minutissima Microalgaementioning

confidence: 93%

Effect of Chemical Pre-treatments on Bioethanol Production from Chlorella minutissima

Sert

İnan

Özçimen

2018

ACSi

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“…In this study, the peaks at 1423 cm -1 and 902 cm -1 were more pronounced with increasing temperature, even though the LOI values of the untreated and the treated OPEFB were not different (Table 3). Structural changes in lignin and loss of aromatic units due to chemical bond disruption effects of the MAOxAc pretreatment can be observed by the increasing intensity in signals related to the lignin structure (1633, 1600, 1506, 1456 and 1255 cm -1 ) [27,31,33,34]. In the spectrum of the untreated OPEFB (Figure 4), the aforementioned peaks could be observed, even though they did not appear clearly.…”

Section: Effect Of Pretreatment On the Functional Groups Of Opefb Fibersmentioning

confidence: 98%

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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“…Chen et al (2015) have pretreated corn stover using dilute sulfuric acid solution (0.6 M) at 120 • C for hydrolysis, and high xylan removal (87.21%) was obtained. In Lee et al (2015) study, sequential dilute acid (H 2 SO 4 ) and alkali pretreatment (NaOH) on corn stover showed that 74.6-77.3% of xylan and 85.9-89.4% of lignin were solubilized, respectively. Using 2% NaOH at 121 • C for 60 min, Yang et al (2015) found the highest delignification and sugar yield of sawtooth oak (Quercus acutissima) were 39.34% and 426.36 mg/g, respectively.…”

Section: Figmentioning

confidence: 99%

Physico-chemical pretreatment technologies of bioconversion efficiency of Paulownia tomentosa (Thunb.) Steud.

Zhang

Chen

et al. 2016

Industrial Crops and Products

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Sequential dilute acid and alkali pretreatment of corn stover: Sugar recovery efficiency and structural characterization

Cited by 102 publications

References 31 publications

Effect of Chemical Pre-treatments on Bioethanol Production from Chlorella minutissima

Effect of Chemical Pre-treatments on Bioethanol Production from Chlorella minutissima

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

Physico-chemical pretreatment technologies of bioconversion efficiency of Paulownia tomentosa (Thunb.) Steud.

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