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Shabbirahmed AM, Joel J, Gomez A, Patel AK, Singhania RR, Haldar D. Environment friendly emerging techniques for the treatment of waste biomass: a focus on microwave and ultrasonication processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:79706-79723. [PMID: 37336854 DOI: 10.1007/s11356-023-28271-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 06/11/2023] [Indexed: 06/21/2023]
Abstract
In the recent past, an increasing interest is mostly observed in using microwave and ultrasonic irradiation to aid the biological conversion of waste materials into value-added products. This study is focused on various individual impacts of microwaves and ultrasonic waves for the treatment of biomass before the synthesis of value-added products. Following, a comprehensive review of the mechanisms governing microwaves and ultrasonication as the treatment methods, their effects on biomass disruption, solubilization of organic matter, modification of the crystalline structure, enzymatic hydrolysis and production of reducing sugars was performed. However, based on the lab-scale experiments evaluated, microwaves and ultrasonication were studied to be economically and energetically ineffective despite their beneficial effects on the waste biomass. This article reviews some of the difficulties associated with using microwaves and ultrasonic irradiation for the efficient processing of waste biomasses and identified some potential directions for future study.
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Affiliation(s)
- Asma Musfira Shabbirahmed
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641114, India
| | - Jesse Joel
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641114, India
| | - Anbu Gomez
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641114, India
| | - Anil Kumar Patel
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
- Centre for Energy and Environmental Sustainability, Lucknow, 226029, India
| | - Reeta Rani Singhania
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Dibyajyoti Haldar
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641114, India.
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The Impact of High-Intensity Ultrasound-Assisted Extraction on the Structural and Functional Properties of Hempseed Protein Isolate (HPI). Foods 2023; 12:foods12020348. [PMID: 36673438 PMCID: PMC9858475 DOI: 10.3390/foods12020348] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Hempseed protein has become a promising candidate as a future alternative protein source due to its high nutritional value. In the current study, hempseed protein isolate (HPI) was obtained using ultrasonic-assisted extraction with the aim to improve the functionality of HPI via protein structure modification. The solubility of HPI could be improved twofold under 20 kHz ultrasound processing compared to conventional alkaline extraction-isoelectric point precipitation. The protein solubility was gradually enhanced as the ultrasonic power improved, whereas excessive ultrasound intensity would cause a decline in protein solubility. Ultrasonic processing was found to have beneficial effects on the other functionalities of the extracted HPI, such as emulsifying and foaming properties. This improvement can be ascribed to the physical effects of acoustic cavitation that changed the secondary and tertiary structures of the protein to enhance surface hydrophobicity and decrease the particle size of the extracted protein aggregates. In addition, more available thiols were observed in US-treated samples, which could be another reason for improved functionality. However, the results of this study also revealed that prolonged high-power ultrasound exposure may eventually have a detrimental impact on HPI functional properties due to protein aggregation. Overall, this study suggests that high intensity ultrasound can enhance the functionality of HPI, which may ultimately improve its value in HPI-based food products.
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Ultrasonic Processing of Food Waste to Generate Value-Added Products. Foods 2022; 11:foods11142035. [PMID: 35885279 PMCID: PMC9319240 DOI: 10.3390/foods11142035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/04/2022] [Accepted: 07/06/2022] [Indexed: 02/04/2023] Open
Abstract
Ultrasonic processing has a great potential to transform waste from the food and agriculture industry into value-added products. In this review article, we discuss the use of ultrasound for the valorisation of food and agricultural waste. Ultrasonic processing is considered a green technology as compared to the conventional chemical extraction/processing methods. The influence of ultrasound pre-treatment on the soluble chemical oxygen demand (SCOD), particle size, and cell wall content of food waste is first discussed. The use of ultrasonic processing to produce/extract bioactives such as oil, polyphenolic, polysaccharides, fatty acids, organic acids, protein, lipids, and enzymes is highlighted. Moreover, ultrasonic processing in bioenergy production from food waste such as green methane, hydrogen, biodiesel, and ethanol through anaerobic digestion is also reviewed. The conversion of waste oils into biofuels with the use of ultrasound is presented. The latest developments and future prospective on the use of ultrasound in developing energy-efficient methods to convert food and agricultural waste into value-added products are summarised.
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Soltaninejad A, Jazini M, Karimi K. Sustainable bioconversion of potato peel wastes into ethanol and biogas using organosolv pretreatment. CHEMOSPHERE 2022; 291:133003. [PMID: 34808197 DOI: 10.1016/j.chemosphere.2021.133003] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/01/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Potato processing industries generate considerable amounts of residues, i.e., potato peel wastes (PPW). Valorization of PPW for bioethanol and biogas production via a biorefining process was investigated in this study. Organosolv pretreatment was performed on the PPW using 50-75% (v/v) ethanol solution at 120-180 °C with/without the presence of 1% (w/w) H2SO4 (as a catalyst). After the pretreatment, the solvent, i.e., ethanol, was recovered by distillation. Catalyzed organosolv pretreatment using 50% (v/v) ethanol at 120 °C followed by enzymatic hydrolysis resulted in a high hydrolysate yield of 539.8 g glucose/kg dry PPW that was successfully fermented to 224.2 g ethanol/kg dry PPW. To recover more energy, the liquid fraction of the pretreatment remained after solvent recovery and the unhydrolyzed solids that remained from the enzymatic hydrolysis were anaerobically digested. From each kg of dry PPW, the anaerobic digestion produced 57.9 L biomethane. Thus, the biorefinery comprising ethanolic organosolv pretreatment, solvent recovery, enzymatic hydrolysis, ethanolic fermentation, and anaerobic digestion of residues was produced 8112 kJ energy per kg of dry PPW.
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Affiliation(s)
- Ali Soltaninejad
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Mohammadhadi Jazini
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Department of Chemical Engineering, Vrije Universiteit Brussel, 1050, Brussels, Belgium.
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Culaba AB, Mayol AP, San Juan JLG, Vinoya CL, Concepcion RS, Bandala AA, Vicerra RRP, Ubando AT, Chen WH, Chang JS. Smart sustainable biorefineries for lignocellulosic biomass. BIORESOURCE TECHNOLOGY 2022; 344:126215. [PMID: 34728355 DOI: 10.1016/j.biortech.2021.126215] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/18/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Lignocellulosic biomass (LCB) is considered as a sustainable feedstock for a biorefinery to generate biofuels and other bio-chemicals. However, commercialization is one of the challenges that limits cost-effective operation of conventional LCB biorefinery. This article highlights some studies on the sustainability of LCB in terms of cost-competitiveness and environmental impact reduction. In addition, the development of computational intelligence methods such as Artificial Intelligence (AI) as a tool to aid the improvement of LCB biorefinery in terms of optimization, prediction, classification, and decision support systems. Lastly, this review examines the possible research gaps on the production and valorization in a smart sustainable biorefinery towards circular economy.
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Affiliation(s)
- Alvin B Culaba
- Department of Mechanical Engineering, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; Center for Engineering Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines.
| | - Andres Philip Mayol
- Center for Engineering Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; Department of Manufacturing Engineering and Management, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines
| | - Jayne Lois G San Juan
- Center for Engineering Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; Department of Industrial and Systems Engineering, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines
| | - Carlo L Vinoya
- Department of Mechanical Engineering, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; School of Sciences and Engineering, University of Asia and the Pacific, Pearl Dr, Ortigas Center, Pasig, 1605 Metro Manila, Philippines
| | - Ronnie S Concepcion
- Center for Engineering Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; Department of Manufacturing Engineering and Management, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines
| | - Argel A Bandala
- Center for Engineering Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; Department of Electronics and Computer Engineering, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines
| | - Ryan Rhay P Vicerra
- Center for Engineering Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; Department of Manufacturing Engineering and Management, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines
| | - Aristotle T Ubando
- Department of Mechanical Engineering, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; Center for Engineering Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines; Thermomechanical Analysis Laboratory, De La Salle University, Laguna Campus, LTI Spine Road, Laguna Blvd, Biñan, Laguna 4024, Philippines
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
| | - Jo-Shu Chang
- Department of Chemical and Materials Engineering, Tunghai University, Taichung 407, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan
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Hamdy A, Abd Elhafez S, Hamad H, Ali R. The Interplay of Autoclaving with Oxalate as Pretreatment Technique in the View of Bioethanol Production Based on Corn Stover. Polymers (Basel) 2021; 13:3762. [PMID: 34771319 PMCID: PMC8587947 DOI: 10.3390/polym13213762] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/17/2021] [Accepted: 10/19/2021] [Indexed: 11/24/2022] Open
Abstract
Bio-based treatment technologies are gaining great interest worldwide, and significant efforts are being afforded to develop technology for the use of lignocellulosic biomass. The potential of corn stover (CS) as a feedstock for bioethanol production was investigated by creating an optimal pretreatment condition to maximize glucose production. The current study undertook the impact of novel physico-chemical pretreatment methods of CS, i.e., autoclave-assisted oxalate (CSOA) and ultrasound-assisted oxalate (CSOU), on the chemical composition of CS and subsequent saccharification and fermentation for bioethanol production. The delignification was monitored by physicochemical characterizations such as SEM, XRD, FTIR, CHNs, and TGA. The results evidenced that delignification and enzymatic saccharification of the CS pretreated by CSOA was higher than CSOU. The optimum enzymatic saccharification operating conditions were 1:30 g solid substrate/mL sodium acetate buffer at 50 °C, shaking speed 100 rpm, and 0.4 g enzyme dosage. This condition was applied to produce glucose from CS, followed by bioethanol production by S. cerevisiae using an anaerobic fermentation process after 72 h. S. cerevisiae showed high conversion efficiency by producing a 360 mg/dL bioethanol yield, which is considered 94.11% of the theoretical ethanol yield. Furthermore, this research provides a potential path for waste material beneficiation, such as through utilizing CS.
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Affiliation(s)
- Ali Hamdy
- Environmental Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technology Application (SRTA-City), New Borg El-Arab City P.O. Box 21934, Alexandria, Egypt;
| | - Sara Abd Elhafez
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Application (SRTA-City), New Borg El-Arab City P.O. Box 21934, Alexandria, Egypt;
| | - Hesham Hamad
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Application (SRTA-City), New Borg El-Arab City P.O. Box 21934, Alexandria, Egypt;
| | - Rehab Ali
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Application (SRTA-City), New Borg El-Arab City P.O. Box 21934, Alexandria, Egypt;
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7
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Hoang AT, Nizetic S, Ong HC, Chong CT, Atabani AE, Pham VV. Acid-based lignocellulosic biomass biorefinery for bioenergy production: Advantages, application constraints, and perspectives. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 296:113194. [PMID: 34243094 DOI: 10.1016/j.jenvman.2021.113194] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 06/14/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
The production of chemicals and fuels from renewable biomass with the primary aim of reducing carbon footprints has recently become one of the central points of interest. The use of lignocellulosic biomass for energy production is believed to meet the main criteria of maximizing the available global energy source and minimizing pollutant emissions. However, before usage in bioenergy production, lignocellulosic biomass needs to undergo several processes, among which biomass pretreatment plays an important role in the yield, productivity, and quality of the products. Acid-based pretreatment, one of the existing methods applied for lignocellulosic biomass pretreatment, has several advantages, such as short operating time and high efficiency. A thorough analysis of the characteristics of acid-based biomass pretreatment is presented in this review. The environmental concerns and future challenges involved in using acid pretreatment methods are discussed in detail to achieve clean and sustainable bioenergy production. The application of acid to biomass pretreatment is considered an effective process for biorefineries that aim to optimize the production of desired products while minimizing the by-products.
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Affiliation(s)
- Anh Tuan Hoang
- Institute of Engineering, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Viet Nam.
| | - Sandro Nizetic
- University of Split, FESB, Rudjera Boskovica 32, 21000, Split, Croatia
| | - Hwai Chyuan Ong
- Centre for Green Technology, Faculty of Engineering and IT, University of Technology Sydney, NSW, 2007, Australia.
| | - Cheng Tung Chong
- China-UK Low Carbon College, Shanghai Jiao Tong University, Lingang, Shanghai, 201306, China
| | - A E Atabani
- Alternative Fuels Research Laboratroy (AFRL), Energy Division, Department of Mechanical Engineering, Faculty of Engineering, Erciyes University, 38039, Kayseri, Turkey
| | - Van Viet Pham
- Institute of Maritime, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam.
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Zhou ZY, Yang ST, Moore CD, Zhang QH, Peng SY, Li HG. Acetone, butanol, and ethanol production from puerariae slag hydrolysate through ultrasound-assisted dilute acid by Clostridium beijerinckii YBS3. BIORESOURCE TECHNOLOGY 2020; 316:123899. [PMID: 32739577 DOI: 10.1016/j.biortech.2020.123899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/19/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
In this study, puerariae slag (PS) was evaluated as a renewable raw material for acetone-butanol-ethanol (ABE) fermentation. To accelerate the hydrolysis of PS, the method of ultrasound-assisted dilute acid hydrolysis (UAAH) was used. With this effort, 0.69 g reducing sugar was obtained from 1 g raw material under the optimal pretreatment condition. Subsequently, the butanol and total solvent production of 8.79 ± 0.16 g/L and 12.32 ± 0.26 g/L were obtained from the non-detoxified diluted hydrolysate, and the yield and productivity of butanol were 0.19 g/g and 0.12 g/L/h, respectively. Additionally, the changes in the structure of PS after different pretreatment methods were observed using SEM and FT-IR. UAAH resulted in more severe and distinct damage to the dense structure of PS. This study suggests that the UAAH is an attainable but effective pretreatment method, thereby is a promising technique for lignocellulose hydrolysis and improve butanol production.
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Affiliation(s)
- Zhi-You Zhou
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Nanchang, Jiangxi 330045, China
| | - Shang-Tian Yang
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Curtis D Moore
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Qing-Hua Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Nanchang, Jiangxi 330045, China
| | - Shuai-Ying Peng
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Nanchang, Jiangxi 330045, China
| | - Han-Guang Li
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Nanchang, Jiangxi 330045, China.
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9
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Zhao J, Xu Y, Wang W, Griffin J, Wang D. Conversion of liquid hot water, acid and alkali pretreated industrial hemp biomasses to bioethanol. BIORESOURCE TECHNOLOGY 2020; 309:123383. [PMID: 32330804 DOI: 10.1016/j.biortech.2020.123383] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/11/2020] [Accepted: 04/13/2020] [Indexed: 05/25/2023]
Abstract
In this work, four varieties of hemp biomasses (Helena, SS Beta, Tygra, and Elleta Campana) pretreated with liquid hot water (LHW), H2SO4, and NaOH were investigated for ethanol production. Physicochemical and morphological properties of the pretreated hemp biomass were characterized. LHW achieved high glucan (85-98%) and xylan (67-71%) recoveries. H2SO4 induced significant glucan decomposition (5.9-10.6 g/L) and inhibitor formation (4.5-7.4 g/L of HMF and 2.8-4.5 g/L of furfural) in resulting slurries. Both LHW and H2SO4 pretreatments resulted in low glucose and ethanol yields due to recondensed lignin units. NaOH pretreatment achieved high glucose and ethanol yields due to efficient lignin removal (58.6-75.3%). There was no significant variation in ethanol yield among the four hemp varieties pretreated by NaOH. H2SO4 and NaOH pretreated biomasses showed apparent terraced-field structures and microporous protuberances. Changes in crystallinity indexes and intensities of FTIR peaks were consistent with enhanced cellulose and decreased amorphous hemicellulose.
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Affiliation(s)
- Jikai Zhao
- Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, USA
| | - Youjie Xu
- Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, USA
| | - Weiqun Wang
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, KS 66506, USA
| | - Jason Griffin
- John C. Pair Horticultural Center, Department of Horticulture & Natural Resources, Kansas State University, Haysville, KS 67060, USA
| | - Donghai Wang
- Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, USA.
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10
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Intrinsic molecular insights to enhancement of biogas production from kitchen refuse using alkaline-microwave pretreatment. Sci Rep 2019; 9:5968. [PMID: 30979920 PMCID: PMC6461693 DOI: 10.1038/s41598-019-42471-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 04/01/2019] [Indexed: 12/13/2022] Open
Abstract
The current study analyzed and optimized the concentration of NaOH for alkaline pretreatment of kitchen refuse for biogas production. Also, the benefits of microwave assistance in enhanced biogasification of kitchen refuse were evaluated. The TS, VS and structural changes were compared using standard experimental techniques. Molecular dynamics was investigated for the molecular level changes leading to higher biogasification in NaOHmicrowave combined pretreatment. The methane and biogas yields were calculated to validate the benefits of microwave assistance in efficient biogasification. The NaOH-microwave combined pretreatment showed higher VS production. Microwave treatment degraded and removed lignin more efficiently. Molecular dynamics studies revealed the induction of configurational instability in lignin and cellulose molecules with variable temperatures. The methane and biogas production increased with 6% NaOH concentration, and decreased at higher NaOH concentration till 10%. Microwave assistance declined the required NaOH concentration further to 4%. Thus, as compared to 6% NaOH concentration required for an efficient pretreatment, the kitchen refuse was efficiently pretreated with 4% NaOH concentration when combined with a 30 min duration microwaving. The experimental and computational data provided a detailed analysis proposing an optimized, novel and promising method to pretreat kitchen refuse for efficient and enhanced biogas production.
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Mohapatra S, Mishra C, Merritt BB, Pattathil S, Thatoi H. Evaluating the Role of Ultrasonication-Assisted Alkali Pretreatment and Enzymatic Hydrolysis on Cellwall Polysaccharides of Pennisetum
Grass Varieties as Potential Biofuel Feedstock. ChemistrySelect 2019. [DOI: 10.1002/slct.201802187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sonali Mohapatra
- Department of Biotechnology; College of Engineering and Technology; Biju Pattnaik University of Technology; Bhubaneswar- 751003 India
| | - Chinmaya Mishra
- Department of Biotechnology; College of Engineering and Technology; Biju Pattnaik University of Technology; Bhubaneswar- 751003 India
| | - Brian B Merritt
- Complex Carbohydrate Research Center; University of Georgia, GA 30602 USA and BioEnergy Science Center (BESC); Oak Ridge National Laboratory; Oak Ridge, TN 37831 USA
| | - Sivakumar Pattathil
- Complex Carbohydrate Research Center; University of Georgia, GA 30602 USA and BioEnergy Science Center (BESC); Oak Ridge National Laboratory; Oak Ridge, TN 37831 USA
| | - Hrudayanath Thatoi
- Department of Biotechnology; North Orissa University; Sriram Chandra vihar, Takatpur Baripada- 757003, Odisha India
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Nosratpour MJ, Karimi K, Sadeghi M. Improvement of ethanol and biogas production from sugarcane bagasse using sodium alkaline pretreatments. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 226:329-339. [PMID: 30125812 DOI: 10.1016/j.jenvman.2018.08.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/13/2018] [Accepted: 08/13/2018] [Indexed: 06/08/2023]
Abstract
Sugarcane bagasse was pretreated with sodium carbonate, sodium sulfite, and sodium acetate in concentrations of 0.5 M and 0.25 M, as well as hydrothermal pretreatment, to break down its structural recalcitrance and improve biogas and ethanol production. The pretreatments were conducted at 100, 140, and 180 °C for 1 h. The highest biogas and ethanol production was observed for sugarcane bagasse pretreated with 0.5 M sodium carbonate solution at 140 °C, which was 239 ± 20 Nml CH4/g VS, and 7.27 ± 0.70 g/l, respectively, containing gasoline equivalents of 164.2 ± 14.3 l/ton of raw bagasse and 147.8 ± 14.2 l/ton of raw bagasse, respectively. The highest gasoline equivalent was obtained for biogas production from the substrate pretreated with 0.5 M sodium sulfite solution at 100 °C (190.2 ± 2.1 l/ton of raw bagasse). In comparison to sodium carbonate and sodium sulfite, sodium acetate had less effect on biofuel production and was comparable with hydrothermal pretreatment. In contradiction to sodium acetate pretreated bagasse, in which increased pretreatment temperature intensified biofuel production, a reduction of biofuel production was observed for sodium carbonate and sodium sulfite pretreatment when temperature was increased from 140 to 180 °C. Besides considerable amounts of biofuel production at the best conditions obtained, over 762 and 543 kilotons of equivalent CO2 can be reduced annually in Iran by biogas and ethanol production from sugarcane, respectively.
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Affiliation(s)
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Morteza Sadeghi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
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13
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Optimization and Evaluation of Alkali-Pretreated Paeonia Ostii Seed Coats as Adsorbent for the Removal of Mb From Aqueous Solution. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2018. [DOI: 10.2478/pjct-2018-0035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Abstract
A novel effi cient adsorbent, alkali-pretreated Paeonia ostii seed coats (AP-PSC), was investigated for the removal of methylene blue (MB) dye from solution. Orthogonal array design was applied to optimize the process parameters viz. alkali concentration, liquid-solid ratio (LSR) and pretreatment time. The results revealed that the optimal pretreatment conditions were at 0.8% (w/w) NaOH with LSR of 0.35 L g-1 treating for 50 min. Equilibrium and kinetic studies indicated that Langmuir isotherm and Pseudo-second-order models described the experimental data well. The maximum adsorption capability was of 368.2 mg g-1 for MB at 25oC. Thermodynamic parameters suggested that the AP-PSC adsorption process was physical, endothermic and spontaneous. Furthermore, the adsorption process was infl uenced by several interactive mechanisms, including ion-exchange, as well as Van der Waals forces and hydrogen bonds that occur concomitantly. It was concluded that AP-PSC may be potential as an effi cient adsorbent to remove MB from solution.
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14
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Mohapatra S, Padhy S, Das Mohapatra PK, Thatoi HN. Enhanced reducing sugar production by saccharification of lignocellulosic biomass, Pennisetum species through cellulase from a newly isolated Aspergillus fumigatus. BIORESOURCE TECHNOLOGY 2018; 253:262-272. [PMID: 29353755 DOI: 10.1016/j.biortech.2018.01.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 01/04/2018] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
A cellulose degrading fungus Aspergillus fumigatus (CWSF-7) isolated from decomposed lignocellulosic waste containing soil was found to produce high titer of cellulases. The optimum activity of CMCase and FPase were 1.9 U/mL and 0.9 U/mL respectively while the highest protein concentration was found to be 1.2 mg/mL. Saccharification of two Pennisetum grass varieties [dennanath (DG) and hybrid napier grass (HNG)] were optimized using partially purified CMCase and FPase in equal concentration, i.e. a ratios of 1:1 and further with addition of commercial xylanase using response surface methodology (RSM). The production of total reducing sugar (TRS) using isolated cellulase were 396.6 and 355.8 (mg/g), whereas further addition of xylanase had higher TRS titers of 478.7 and 483.3 (mg/g) for DG and HNG respectively as evident from HPLC analysis. Further, characterization of the enzyme saccharified DG and HNG by SEM and ATR-FTIR revealed efficient hydrolysis of cellulose and partially hydrolysis of hemicellulose.
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Affiliation(s)
- Sonali Mohapatra
- Department of Biotechnology, College of Engineering and Technology, Biju Pattnaik University of Technology, Bhubaneswar 751003, India
| | - Sameer Padhy
- Department of Biotechnology, College of Engineering and Technology, Biju Pattnaik University of Technology, Bhubaneswar 751003, India
| | | | - H N Thatoi
- Department of Biotechnology, North Orissa University, Sriram Chandra vihar, Takatpur, Baripada 757003, Odisha, India
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15
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Bundhoo ZMA, Mohee R. Ultrasound-assisted biological conversion of biomass and waste materials to biofuels: A review. ULTRASONICS SONOCHEMISTRY 2018; 40:298-313. [PMID: 28946428 DOI: 10.1016/j.ultsonch.2017.07.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 07/16/2017] [Accepted: 07/17/2017] [Indexed: 05/25/2023]
Abstract
Ultrasound irradiation has been gaining increasing interests over the years to assist biological conversion of lignocellulosic biomass and waste materials to biofuels. As such, this study reviewed the different effects of sonication on pre-treatment of lignocellulosic biomass and waste materials prior to biofuel production. The mechanisms of ultrasound irradiation as a pre-treatment technique were initially described and the impacts of sonication on disruption of lignocellulosic materials, alteration of the crystalline lattice structure of cellulose molecules, solubilisation of organic matter, reducing sugar production and enzymatic hydrolysis were then reviewed. Subsequently, the influences of ultrasound irradiation on bio-methane, bio-hydrogen and bio-ethanol production were re-evaluated, with most studies reporting enhanced biofuel production from anaerobic digestion or fermentation processes. Nonetheless, despite its positive impacts on biofuel production, sonication was found to be energetically inefficient based on the lab-scale studies reviewed. To conclude, this study reviewed some of the challenges of ultrasound irradiation for enhanced biofuel production while outlining some areas for further research.
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Affiliation(s)
- Zumar M A Bundhoo
- Department of Chemical & Environmental Engineering, Faculty of Engineering, University of Mauritius, Réduit, Mauritius.
| | - Romeela Mohee
- Department of Chemical & Environmental Engineering, Faculty of Engineering, University of Mauritius, Réduit, Mauritius
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16
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Momayez F, Karimi K, Karimi S, Horváth IS. Efficient hydrolysis and ethanol production from rice straw by pretreatment with organic acids and effluent of biogas plant. RSC Adv 2017. [DOI: 10.1039/c7ra10063a] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Effects of biogas effluent and its organic ingredients, i.e., acetic, butyric, lactic, and propionic acid, for the pretreatment of rice straw on enzymatic hydrolysis and ethanol production was studied.
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Affiliation(s)
- Forough Momayez
- Department of Chemical Engineering
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
- Swedish Centre for Resource Recovery
| | - Keikhosro Karimi
- Department of Chemical Engineering
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
- Industrial Biotechnology Group
| | - Shiva Karimi
- Department of Chemical Engineering
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
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