Improvement of lignocellulosic pretreatment efficiency by combined chemo - Mechanical pretreatment for energy consumption reduction and biofuel production

Areepak, Chitchanok; Jiradechakorn, Thitirat; Chuetor, Santi; Phalakornkule, Chantaraporn; Sriariyanun, Malinee; Raita, Marisa; Champreda, Verawat; Laosiripojana, Navadol

doi:10.1016/j.renene.2021.11.002

Cited by 45 publications

(7 citation statements)

References 38 publications

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“…Among the most abundant lignocellulosic biomass for biorefineries, cassava pulp has been one of the most studied crop wastes after rice and corn in various utilization options. The hydrolysis of cassava pulp has been reported based on various approaches, such as acid hydrolysis ( Phowan and Danvirutai, 2014 ; Kurdi and Hansawasdi, 2015 ), enzymatic hydrolysis ( Bunterngsook et al, 2017 ; Siriwong et al, 2019 ), and a combination of acid and enzymatic hydrolysis ( Thongchul et al, 2010 ; Wattanagonniyom et al, 2017 ; Efeovbokhan et al, 2019 ; Areepak et al, 2022 ). Recently, microwave-assisted hydrolysis has gained some interest as it is an express and simple method for adopting biorefineries ( Tsubaki et al, 2008 ; Hermiati et al, 2012 ; Klangpetch et al, 2022 ).…”

Section: Discussionmentioning

confidence: 99%

“…Recently, biorefinery has been adopted as a bottom line technology in biotechnological processes because it integrates white and green biotechnology by converting lignocellulosic wastes into high-value-added products to attain sustainability ( Barcelos et al, 2018 ; Areepak et al, 2022 ). Approximately 181.5 billion tons per year of lignocellulosic wastes have been significantly generated, whereas only 8.2 billion tons per year are used to produce value-added food and non-food bioproducts; however, 1.2 billion tons from agriculture residues are still leftover ( Ubando et al, 2020 ; Areepak et al, 2022 ). According to the report of the Food and Agriculture Organization (FAO) in 2019, approximately 14 per cent of the global food, which is worth $400 billion annually, was lost after it was harvested before arriving at the stores ( FAO, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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Microwave-assisted cassava pulp hydrolysis as food waste biorefinery for biodegradable polyhydroxybutyrate production

Prasertsilp

Pattaragulwanit

Kim

et al. 2023

Front. Bioeng. Biotechnol.

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Cassava pulp is one of the most abundant agricultural residues that can cause serious disposal problems. This study aimed to apply a biorefinery approach by examining the feasibility of microwave-assisted cassava pulp hydrolysis to attain sustainable management and efficient use of natural resources. Four factors, namely, the liquid-to-solid ratio (20 mL/g, 10 mL/g, 7.5 mL/g, and 5 mL/g), types of acids (H2SO4 and H3PO4), watt power (600 W, 700 W, and 800 W) and time (3, 5 and 8 min), were carefully investigated. The highest fermentable sugar content of 88.1 g/L ± 0.7 g/L (0.88 g fermentable sugars/g dry cassava pulp) was achieved when 20 mL/g cassava pulp was hydrolyzed with 2.5% (v/v) H2SO4 under microwave irradiation at 800 W for 8 min. Glucose was a major product (82.0 g/L ± 5.2 g/L). The inhibitor concentration was 5.17 g/L ± 0.01 g/L, and the levulinic acid concentration was 5.15 g/L ± 0.01 g/L. The results indicated that the liquid-to-solid ratio, diluted acid concentration, irradiation watt power and time were important factors in producing fermentable sugars from acid hydrolysis under microwave irradiation. The crude hydrolysate was used for PHB production by Cupriavidus necator strain A-04. The hydrolysate to nutrients ratio of 30:70 (v/v) yielded a cell dry weight of 7.5 g/L ± 0.1 g/L containing PHB content of 66.8% ± 0.3% (w/w), resulting in a yield YP/S (g-PHB/g-SPHB) of 0.35 g/g. This study demonstrated that the microwave-assisted cassava pulp hydrolysate developed in this study provided a high amount of glucose (88.1% conversion) and resulted in a low concentration of inhibitors without xylose; this was successfully achieved without pregelatinization, alkaline pretreatment or detoxification.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microwave-assisted cassava pulp hydrolysis as food waste biorefinery for biodegradable polyhydroxybutyrate production

Prasertsilp

Pattaragulwanit

Kim

et al. 2023

Front. Bioeng. Biotechnol.

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“…Figure 2. The effect of pretreatment on the lignocellulosic biomass structure Agricultural waste and other lignocellulosic biomass are pretreated primarily to lower the amount of energy required for conversion, lower the cost, and produce sugars directly from the biomass (Areepak et al, 2022;Zhang et al, 2021). Physical, chemical, biological, physicochemical, and green solventbased processes are some of the typical pretreatment methods (Awogbemi and Von Kallon, 2022).…”

Section: "1st International Symposium On Biotechnology" Proceedings 2023mentioning

confidence: 99%

Novel Trends in Application and Pretreatment of Lignocellulosic Agricultural Waste

Nikolić¹,

Žilić²,

Milovanović³

et al. 2023

1st INTERNATIONAL SYMPOSIUM ON BIOTECHNOLOGY : Proceedings

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Lignocellulosic biomass represents the most abundant renewable material in the world, whereas agricultural residues, including those from maize cultivation, comprise a significant fraction of the total plant waste that can be repurposed for various applications. Lignocellulosic feedstocks are non-edible and consist mainly of: cellulose, hemicellulose, and lignin, along with extractive compounds. Pretreatment is required to separate the lignocellulosic biomass into its constituents for efficient utilization. Even after extensive research and development of numerous techniques, pretreatment remains one of the most expensive phases in converting lignocellulosic biomass into biobased products.

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“…However, these pretreatment technologies possess drawbacks such as high energy consumption, undesired waste generation, high installation costs, and long duration. The pretreatment process basically counts for 40% of the total capital cost of lignocellulosic valorization because of the high energy consumption, high chemical usage, and undesired waste generation [2,13]. Even though the existing pretreatment technologies lead to the enhanced utilization of lignocellulosic material, the single pretreatment process is inadequate to cover all of the biorefinery processes in terms of the technological, economic, and environmental considerations.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement

et al. 2022

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Pretreatment is a crucial process in a lignocellulosic biorefinery. Corncob is typically considered as a natural renewable carbon source to produce various bio-based products. This study aimed to evaluate the performance of the hydrothermal-mechanical pretreatment of corncob for biofuels and biochemical production. Corncob was first pretreated by liquid hot water (LHW) at different temperatures (140–180 °C) and duration (30, 60 min) and then subjected to centrifugal milling to produce bio-powders. To evaluate the performance of this combined pretreatment, the energy efficiency and waste generation were investigated. The results indicated that the maximum fermentable sugars (FS) were 0.488 g/g biomass obtained by LHW at 180 °C, 30 min. In order to evaluate the performance of this combined pretreatment, the energy efficiency and waste generation were 28.3 g of FS/kWh and 7.21 kg of waste/kg FS, respectively. These obtained results indicate that the combined hydrothermal-mechanical pretreatment was an effective pretreatment process to provide high energy efficiency and low waste generation to produce biofuels. In addition, the energy efficiency and waste generation will be useful indicators for process scaling-up into the industrial scale. This combined pretreatment could be a promising pretreatment technology for the production of biofuels and biochemicals from lignocellulosic valorization.

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Improvement of lignocellulosic pretreatment efficiency by combined chemo - Mechanical pretreatment for energy consumption reduction and biofuel production

Cited by 45 publications

References 38 publications

Microwave-assisted cassava pulp hydrolysis as food waste biorefinery for biodegradable polyhydroxybutyrate production

Microwave-assisted cassava pulp hydrolysis as food waste biorefinery for biodegradable polyhydroxybutyrate production

Novel Trends in Application and Pretreatment of Lignocellulosic Agricultural Waste

Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement

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