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Xu P, Shu L, Li Y, Zhou S, Zhang G, Wu Y, Yang Z. Pretreatment and composting technology of agricultural organic waste for sustainable agricultural development. Heliyon 2023; 9:e16311. [PMID: 37305492 PMCID: PMC10256924 DOI: 10.1016/j.heliyon.2023.e16311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 04/16/2023] [Accepted: 05/12/2023] [Indexed: 06/13/2023] Open
Abstract
With the continuous development of agriculture, Agricultural organic waste (AOW) has become the most abundant renewable energy on earth, and it is a hot spot of research in recent years to realize the recycling of AOW to achieve sustainable development of agricultural production. However, lignocellulose, which is difficult to degrade in AOW, greenhouse gas emissions, and pile pathogenic fungi and insect eggs are the biggest obstacles to its return to land use. In response to the above problems researchers promote organic waste recycling by pretreating AOW, controlling composting conditions and adding other substances to achieve green return of AOW to the field and promote the development of agricultural production. This review summarizes the ways of organic waste treatment, factors affecting composting and problems in composting by researchers in recent years, with a view to providing research ideas for future related studies.
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Affiliation(s)
- Peng Xu
- College of Horticulture, Northwest Agriculture and Forestry University of Science and Technology, Yangling, Shaanxi Province, 712100, China
| | - Luolin Shu
- College of Horticulture, Northwest Agriculture and Forestry University of Science and Technology, Yangling, Shaanxi Province, 712100, China
| | - Yang Li
- College of Horticulture, Northwest Agriculture and Forestry University of Science and Technology, Yangling, Shaanxi Province, 712100, China
| | - Shun Zhou
- College of Horticulture, Northwest Agriculture and Forestry University of Science and Technology, Yangling, Shaanxi Province, 712100, China
| | - Guanzhi Zhang
- College of Horticulture, Northwest Agriculture and Forestry University of Science and Technology, Yangling, Shaanxi Province, 712100, China
| | - Yongjun Wu
- College of Life Sciences, Northwest Agriculture and Forestry University of Science and Technology, Yangling, Shaanxi Province, 712100, China
| | - Zhenchao Yang
- College of Horticulture, Northwest Agriculture and Forestry University of Science and Technology, Yangling, Shaanxi Province, 712100, China
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Yang L, Jiang G, Chen J, Xu Z, Yang Y, Zheng B, Yang Y, Huang H, Tian Y. Production of 1,3-propanediol using enzymatic hydrolysate derived from pretreated distillers' grains. BIORESOURCE TECHNOLOGY 2023; 374:128773. [PMID: 36828224 DOI: 10.1016/j.biortech.2023.128773] [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: 01/07/2023] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
To minimize environmental pollution and waste of resources, distillers' grains (DG) was used to produce 1,3-propanediol. Biological, physical, and chemical methods were used for pretreatment. The correlation between features of pretreated samples and enzymatic digestibility was analyzed. The results showed that the glucan and xylan conversion of dilute sulfuric acid pretreated DG increased by 69.59% and 413.68%, respectively. The glucan conversion of microwave pretreated and xylan conversion of laccase pretreated DG increased by 14.22% and 34.19%, respectively. Pretreatment enhanced enzymatic digestibility through changing the dense structure and features of DG making them conductive to enzymatic hydrolysis. The production of 1,3-propanediol using enzymatic hydrolysate of pretreated DG and glycerol in shake-flask was 17 g/L. The utilization of DG not only provides plentiful raw materials replacing fossil fuels to produce biofuels and other chemicals but efficiently reduces environmental waste.
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Affiliation(s)
- Li Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Guangyang Jiang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Jia Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Zhe Xu
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Yichen Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Bijun Zheng
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - Yi Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Yongqiang Tian
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China; Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, Chengdu, Sichuan 610065, China.
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Zhang R, Gao H, Wang Y, He B, Lu J, Zhu W, Peng L, Wang Y. Challenges and perspectives of green-like lignocellulose pretreatments selectable for low-cost biofuels and high-value bioproduction. BIORESOURCE TECHNOLOGY 2023; 369:128315. [PMID: 36414143 DOI: 10.1016/j.biortech.2022.128315] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Lignocellulose represents the most abundant carbon-capturing substance that is convertible for biofuels and bioproduction. Although biomass pretreatments have been broadly applied to reduce lignocellulose recalcitrance for enhanced enzymatic saccharification, they mostly require strong conditions with potential secondary waste release. By classifying all major types of pretreatments that have been recently conducted with different sources of lignocellulose substrates, this study sorted out their distinct roles for wall polymer extraction and destruction, leading to the optimal pretreatments evaluated for cost-effective biomass enzymatic saccharification to maximize biofuel production. Notably, all undigestible lignocellulose residues are also aimed for effective conversion into value-added bioproduction. Meanwhile, desired pretreatments were proposed for the generation of highly-valuable nanomaterials such as cellulose nanocrystals, lignin nanoparticles, functional wood, carbon dots, porous and graphitic nanocarbons. Therefore, this article has proposed a novel strategy that integrates cost-effective and green-like pretreatments with desirable lignocellulose substrates for a full lignocellulose utilization with zero-biomass-waste liberation.
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Affiliation(s)
- Ran Zhang
- Biomass & Bioenergy Research Centre, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Laboratory of Biomass Engineering & Nanomaterial Application in Automobiles, College of Food Science & Chemical Engineering, Hubei University of Arts & Science, Xiangyang 441003, China; Key Laboratory of Fermentation Engineering, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, China
| | - Hairong Gao
- Biomass & Bioenergy Research Centre, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Laboratory of Biomass Engineering & Nanomaterial Application in Automobiles, College of Food Science & Chemical Engineering, Hubei University of Arts & Science, Xiangyang 441003, China
| | - Yongtai Wang
- Biomass & Bioenergy Research Centre, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Laboratory of Biomass Engineering & Nanomaterial Application in Automobiles, College of Food Science & Chemical Engineering, Hubei University of Arts & Science, Xiangyang 441003, China
| | - Boyang He
- Biomass & Bioenergy Research Centre, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Laboratory of Biomass Engineering & Nanomaterial Application in Automobiles, College of Food Science & Chemical Engineering, Hubei University of Arts & Science, Xiangyang 441003, China
| | - Jun Lu
- Laboratory of Biomass Engineering & Nanomaterial Application in Automobiles, College of Food Science & Chemical Engineering, Hubei University of Arts & Science, Xiangyang 441003, China
| | - Wanbin Zhu
- Center of Biomass Engineering, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China
| | - Liangcai Peng
- Biomass & Bioenergy Research Centre, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Laboratory of Biomass Engineering & Nanomaterial Application in Automobiles, College of Food Science & Chemical Engineering, Hubei University of Arts & Science, Xiangyang 441003, China; Key Laboratory of Fermentation Engineering, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, China
| | - Yanting Wang
- Biomass & Bioenergy Research Centre, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Laboratory of Biomass Engineering & Nanomaterial Application in Automobiles, College of Food Science & Chemical Engineering, Hubei University of Arts & Science, Xiangyang 441003, China.
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Singh A, Tsai ML, Chen CW, Rani Singhania R, Kumar Patel A, Tambat V, Dong CD. Role of hydrothermal pretreatment towards sustainable biorefinery. BIORESOURCE TECHNOLOGY 2023; 367:128271. [PMID: 36351534 DOI: 10.1016/j.biortech.2022.128271] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/26/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
Recently, the world is experiencing a shift from petroleum refineries to biorefineries due to fossil fuel depletion and environmental concerns. To achieve sustainable development of biorefineries and other components of the biofuel production process, eco-friendly and cost-effective approaches are necessary. Therefore, lignocellulosic biomass (LCB) must be exploited in biorefineries for the generation of a broad spectrum of products. The complex structure of LCB prevents its direct saccharification by enzymatic means, so pretreatment is necessary. There are several pretreatment technologies for disrupting the lignocellulosic structure, but hydrothermal pretreatment is the leading pretreatment technology for recovering hemicellulose fraction with a low number of inhibitors and an increased amount of cellulose. The severity of hydrothermal pretreatment plays a principal role in affecting cellulose, hemicellulose, and lignin structure. A detailed account of microwave-assisted hydrothermal pretreatment technologies and the cost-effectiveness, eco-friendliness, and upcoming challenges of this technology for commercialization with the probable solution is presented.
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Affiliation(s)
- Anusuiya Singh
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Mei-Ling Tsai
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, India
| | - Reeta Rani Singhania
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, India
| | - Anil Kumar Patel
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, India; Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Vaibhav Tambat
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
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Zeng H, He H, Ma J, Cao R, Zeng X, Xin B, Wang Y, Qiao J, Zhou S, Dong T, Li A, Yin X. The effects of various enzymatic saccharifications and microwave pretreatment durations on sugar yield and its property alterations of Chinese spirits distillers residues. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2022.2154096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Huawei Zeng
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
- Department of Bioengineering, College of Life Science, Huaibei Normal University, Huaibei, People’s Republic of China
| | - Hongkui He
- Anhui Gujing Tribute Wine Co., Ltd, Bozhou, People’s Republic of China
| | - Jingtong Ma
- Anhui Gujing Tribute Wine Co., Ltd, Bozhou, People’s Republic of China
| | - Runjie Cao
- Anhui Gujing Tribute Wine Co., Ltd, Bozhou, People’s Republic of China
| | - Xin Zeng
- Department of Bioengineering, College of Life Science, Huaibei Normal University, Huaibei, People’s Republic of China
| | - Bingyue Xin
- Department of Bioengineering, College of Life Science, Huaibei Normal University, Huaibei, People’s Republic of China
| | - Yanwen Wang
- Department of Bioengineering, College of Life Science, Huaibei Normal University, Huaibei, People’s Republic of China
| | - Jie Qiao
- Department of Bioengineering, College of Life Science, Huaibei Normal University, Huaibei, People’s Republic of China
| | - Shen Zhou
- Department of Bioengineering, College of Life Science, Huaibei Normal University, Huaibei, People’s Republic of China
| | - Tingting Dong
- Department of Bioengineering, College of Life Science, Huaibei Normal University, Huaibei, People’s Republic of China
| | - Anjun Li
- Anhui Gujing Tribute Wine Co., Ltd, Bozhou, People’s Republic of China
| | - Xian Yin
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
- College of Light Industry Science and Technology, Beijing Technology and Business University, Beijing, People’s Republic of China
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Syazwani Athirah Sazuan N, Irwan Zubairi S, Hanisah Mohd N, Daik R. Synthesising Injectable Molecular Self-Curing Polymer from Monomer Derived from Lignocellulosic Oil Palm Empty Fruit Bunch Biomass: A Review on Treating Osteoarthritis. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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High-Pressure Water Jet System Treatment of Argan Nut Shell and Enzymatic Hydrolysis for Bioethanol Production. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8110627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Argan nut shell represents the most generated by-product during the process of the extraction of argan oil. For the first time, argan nut shell was characterized and assessed as a new potential feedstock for bioethanol production using a combination of mechanical and enzymatic pretreatment. Argan shell samples were first disintegrated using the Star Burst system, which involves a high-pressure water jet system. Then, the pretreated argan nut shell was subjected to enzymatic hydrolysis using Viscozyme L (30 FBGU/g). Afterwards, the fermentation of the hydrolysate by Saccharomyces cerevisiae was investigated. Argan nut shell, as a feedstock plentiful in carbohydrates, conferred a high yield of saccharification (90%) and an optimal ethanol bioconversion (45.25%) using Viscozyme L (30 FBGU/g) at 2%w/v of argan feedstock.
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Cellulosic Ethanol Production Using Waste Wheat Stillage after Microwave-Assisted Hydrotropic Pretreatment. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27186097. [PMID: 36144825 PMCID: PMC9506164 DOI: 10.3390/molecules27186097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022]
Abstract
One of the key elements influencing the efficiency of cellulosic ethanol production is the effective pretreatment of lignocellulosic biomass. The aim of the study was to evaluate the effect of microwave-assisted pretreatment of wheat stillage in the presence of sodium cumene sulphonate (NaCS) hydrotrope used for the production of second-generation bioethanol. As a result of microwave pretreatment, the composition of the wheat stillage biomass changed significantly when compared with the raw material used, before treatment. Microwave-assisted pretreatment with NaCS effectively reduced the lignin content and hemicellulose, making cellulose the dominant component of biomass, which accounted for 42.91 ± 0.10%. In post pretreatment, changes in biomass composition were also visible on FTIR spectra. The peaks of functional groups and bonds characteristic of lignins (C-O vibration in the syringyl ring, asymmetric bending in CH3, and aromatic skeleton C-C stretching) decreased. The pretreatment of the analyzed lignocellulosic raw material with NaCS resulted in the complete conversion of glucose to ethanol after 48 h of the process, with yield (in relation to the theoretical one) of above 91%. The highest observed concentration of ethanol, 23.57 ± 0.10 g/L, indicated the high effectiveness of the method used for the pretreatment of wheat stillage that did not require additional nutrient supplementation.
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Dev B, Bakshi A, Paramasivan B. Prospects of utilizing seawater as a reaction medium for pretreatment and saccharification of rice straw. CHEMOSPHERE 2022; 293:133528. [PMID: 34995624 DOI: 10.1016/j.chemosphere.2022.133528] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 12/30/2021] [Accepted: 01/02/2022] [Indexed: 06/14/2023]
Abstract
The transition towards a bio-based economy has led to an unprecedented surge in fresh water consumption that renders biofuel a high water footprint product. The depleting fresh water resources have exacerbated the situation which necessitates the exploration of non-potable water for biorefinery purposes. In the current study, seawater is used as a plausible alternative reaction medium for pretreatment and saccharification of rice straw. Response Surface Methodology (RSM) based on Box-Behnken Design (BBD) was employed to model, predict and validate cellulose release and reducing sugar yield from rice straw subjected to microwave-NaOH pretreatment. The optimized pretreatment conditions were determined to be 8.54% substrate loading, 1.94% NaOH and 4.09 min which resulted in the maximum cellulose release of 65.43% and reducing sugar yield of 0.554 g/g. Several physico-chemical studies of the raw and pretreated biomass were carried out using bomb calorimetry, scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, Brunauer-Emmett-Teller (BET) analysis and thermal gravimetric analysis (TGA) to examine the efficacy of pretreatment. Evidences of an apparent delignification was substantiated by the increase in surface area from 7.719 to 44.188 m2 g-1and pore volume from 0.039 to 0.071 mlg-1 which was consistent with the decrease in energy density and distorted surface morphology of the pretreated biomass. Further, the FTIR revealed a reduced peak in the absorption spectral bands at 1636 cm-1 which confirmed the pretreatment mediated degradation of lignin and hemicellulose. This finding provides evidence on the prospects of utilizing abundantly available seawater resource as a reaction medium for sustainable biofuel production.
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Affiliation(s)
- Binita Dev
- Department of Life Science, National Institute of Technology Rourkela, Odisha, 769008, India
| | - Arindam Bakshi
- Department of Food Science and Human Nutrition, Iowa State University, Iowa, 50011, USA
| | - Balasubramanian Paramasivan
- Department of Biotechnology & Medical Engineering, National Institute of Technology Rourkela, 769008, Odisha, India.
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Yue P, Hu Y, Tian R, Bian J, Peng F. Hydrothermal pretreatment for the production of oligosaccharides: A review. BIORESOURCE TECHNOLOGY 2022; 343:126075. [PMID: 34606922 DOI: 10.1016/j.biortech.2021.126075] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Oligosaccharides are low-molecular-weight carbohydrates with crucial physical, chemical, and physiological properties, which are increasingly important in the fields of food, pharmaceuticals, cosmetics, and biomedicine. Pretreating biomass in a cost-effective way is a significant challenge for oligosaccharides research. Hydrothermal pretreatment is a potentially eco-friendly technology to obtain oligosaccharides by deconstructing biomass. In this work, we compared the differences between hydrothermal pretreatment and the traditional pretreatment method. The fundamentals and classification of hydrothermal pretreatment, as well as the latest studies on hydrothermal preparation of oligosaccharides, were further reviewed and evaluated to provide a theoretical basis for the production and application of oligosaccharides. Some challenges and future trends to develop green and large-scale hydrothermal pretreatment were proposed for the production of oligosaccharides.
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Affiliation(s)
- Panpan Yue
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China
| | - Yajie Hu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China
| | - Rui Tian
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China
| | - Jing Bian
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China
| | - Feng Peng
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.
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Chai CY, Tan IS, Foo HCY, Lam MK, Tong KTX, Lee KT. Sustainable and green pretreatment strategy of Eucheuma denticulatum residues for third-generation l-lactic acid production. BIORESOURCE TECHNOLOGY 2021; 330:124930. [PMID: 33735730 DOI: 10.1016/j.biortech.2021.124930] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 02/27/2021] [Accepted: 02/27/2021] [Indexed: 06/12/2023]
Abstract
Managing plastic waste remains an urgent environmental concern and switching to biodegradable plastics can reduce the dependence on depleting fossil fuels. This study emphasises the efficacy of macroalgae wastes, Eucheuma denticulatum residues (EDRs), as potential alternate feedstock to produce l-lactic acid (l-LA), the monomer of polylactic acid, through fermentation. An innovative environmental friendly strategy was explored in this study to develop a glucose platform from EDRs: pretreatment with microwave-assisted autohydrolysis (MAA) applied to enhance enzymatic hydrolysis of EDRs. The results indicate that MAA pretreatment significantly increased the digestibility of EDRs during the enzymatic hydrolysis process. The optimum pretreatment conditions were 120 °C and 50 min, resulting in 96.5% of enzymatic digestibility after 48 h. The high l-LA yield of 98.6% was obtained using pretreated EDRs and supplemented with yeast extract. The energy analysis implies that MAA pretreatment could further improve the overall energy efficiency of the process.
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Affiliation(s)
- Choi Yan Chai
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak, Malaysia
| | - Inn Shi Tan
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak, Malaysia.
| | - Henry Chee Yew Foo
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak, Malaysia
| | - Man Kee Lam
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia; HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Kevin Tian Xiang Tong
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak, Malaysia
| | - Keat Teong Lee
- School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
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Wei X, Peng P, Peng F, Dong J. Natural Polymer Eucommia Ulmoides Rubber: A Novel Material. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3797-3821. [PMID: 33761246 DOI: 10.1021/acs.jafc.0c07560] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
As the second natural rubber resource, Eucommia ulmoides rubber (EUR) from Eucommia ulmoides Oliver is mainly composed of trans-1,4-polyisoprene, which is the isomer of natural rubber cis-1,4-polyisoprene from Hevea brasiliensis. In the past few years, the great potential application of EUR has received increasing attention, and there is a growing awareness that the natural polymer EUR could become an emerging research topic in field of the novel materials due to its unique and excellent duality of both rubber and plastic. To gain insight into its further development, in this review, the extraction, structure, physicochemical properties, and modification of EUR are discussed in detail. More emphasis on the potential applications in the fields of the environment, agriculture, engineering, and biomedical engineering is summarized. Finally, some insights into the challenges and perspectives of EUR are also suggested.
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Affiliation(s)
- Xingneng Wei
- College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Pai Peng
- College of Forestry, Northwest A&F University, Yangling 712100, China
| | - Feng Peng
- College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Juane Dong
- College of Life Sciences, Northwest A&F University, Yangling 712100, China
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