Ethanol production from hazelnut shells through enzymatic saccharification and fermentation by low-temperature alkali pretreatment

Hoşgün, Emir Zafer; Berikten, Derya; Kıvanç, Merih; Bozan, Berrin

doi:10.1016/j.fuel.2017.01.114

Cited by 59 publications

(26 citation statements)

References 27 publications

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“…Significant variations in the chemical contents were observed among the peels from the two durian cultivars in this study ( Table 1). The glucan contents of the monthong and chanee peel biomass studied are higher than that observed in other agro-residues, including hazelnut shells (16.67 ± 0.76%) [25], almond shells (32.17 ± 1.32%) [26], corn stover (30.70 ± 0.90%) [27] and orange peel (16.37 ± 0.77%) [28]. The presence of the high glucan content in the durian peel biomass makes it a promising feedstock for the bioprocess industry.…”

Section: Discussioncontrasting

confidence: 59%

Fermentable Sugar Production from the Peels of Two Durian (Durio zibethinus Murr.) Cultivars by Phosphoric Acid Pretreatment

Obeng

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2018

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The potential of durian (Durio zibethinus Murr.) peel as feedstock for the production of fermentable sugars was evaluated. Durian peel biomass from two cultivars, monthong (Durio zibethinus Murr. cv. Monthong) and chanee (Durio zibethinus Murr. cv. Chanee), were pretreated with different concentrations (70%, 75%, 80%, and 85%) of phosphoric acid (H3PO4) at a moderate temperature of 60 °C for 60 min. The H3PO4-pretreated durian peel biomass was then subjected to enzymatic hydrolysis. Significantly higher glucan (44.74 ± 0.21%) content was observed in the monthong peel compared to the chanee peel (42.06 ± 0.28%). Phosphoric acid pretreatment caused the significant solubilization of the xylan and acid soluble lignin (ASL) contents. This enhanced the enzymatic hydrolysis process causing a significant increase in the hydrolysis efficiency and glucose concentration. The highest hydrolysis efficiency and glucose concentration were obtained after 72 h from the 75% H3PO4-pretreated peel biomass for both the monthong (90.33 ± 0.42% and 9.55 ± 0.11 g/L, respectively) and chanee (90.06 ± 0.40% and 8.56 ± 0.13 g/L, respectively) peels. Biomass to glucose recovery for monthong and chanee were improved by approximately 7- and 6-fold, respectively. The scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis showed destruction of the peel biomass structure and changes in the cellulose crystallinity index (CrIs).

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Section: Discussioncontrasting

confidence: 59%

Fermentable Sugar Production from the Peels of Two Durian (Durio zibethinus Murr.) Cultivars by Phosphoric Acid Pretreatment

Obeng

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2018

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“…24,25 On the other hand, KOH pretreatment could be implemented under relatively mild conditions due to the strong basicity of KOH. 26 Therefore, KOH pretreatment has a high potential feasibility.…”

Section: Introductionmentioning

confidence: 99%

A clean and effective potassium hydroxide pretreatment of corncob residue for the enhancement of enzymatic hydrolysis at high solids loading

Chi

Liu

et al. 2019

RSC Adv.

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“…Alkaline pretreatment on the other hand breaks the intermolecular bonds between lignin and hemicelluloses and reduces cellulose crystallinity [33]. During alkaline pretreatment, biomass is treated with alkali chemicals such as sodium, calcium, ammonium, and potassium hydroxides at varying temperatures with or without pressure [5]. Alkaline pretreatment enhances accessibility of enzymes to cellulose by mainly solubilizing lignin contents of biomass.…”

Section: Chemical Pretreatmentmentioning

confidence: 99%

“…Bioethanol is currently the most widely used liquid biofuel [4]. It is an eco-friendly and renewable fuel produced from plant-based starches and sugars [5]. Global production of bioethanol is mainly from food-related crops such as corn, cassava, sugarcane, rice, and sweet potatoes [3].…”

Section: Introductionmentioning

confidence: 99%

Potential of Weed Biomass for Bioethanol Production

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2019

Fuel Ethanol Production From Sugarcane

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Lignocellulosic biomass from weedy plants represents a potential alternative feedstock for economic production of bioethanol. Large numbers of weedy plant species are growing all over the world. Characteristics such as high dry matter yield, low water and nutrient requirements for growth, and cellulose contents make weedy plants very attractive as feedstock for bioethanol production. However, like other lignocellulosic feedstock, the complex structure presents resistance and recalcitrance to processes of conversion to bioethanol. Several weedy plants have been studied to determine their physical characteristics and suitability for bioethanol production. Different conversion techniques have been employed to increase monomer sugars and hence bioethanol yield. This chapter discusses processes and current research activities in bioconversion of weed biomass to bioethanol.

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Ethanol production from hazelnut shells through enzymatic saccharification and fermentation by low-temperature alkali pretreatment

Cited by 59 publications

References 27 publications

Fermentable Sugar Production from the Peels of Two Durian (Durio zibethinus Murr.) Cultivars by Phosphoric Acid Pretreatment

Fermentable Sugar Production from the Peels of Two Durian (Durio zibethinus Murr.) Cultivars by Phosphoric Acid Pretreatment

A clean and effective potassium hydroxide pretreatment of corncob residue for the enhancement of enzymatic hydrolysis at high solids loading

Potential of Weed Biomass for Bioethanol Production

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