journal article·2025-02-01Open access

Global evolution of research on autohydrolysis (hydrothermal) pretreatment as a green technology for biorefineries: A bibliometric analysis

Yuxin Yu, Wenhui Pei, Xiaoxue Zhao, Aldo Joao Cárdenas-Oscanoa, Caoxing Huang

Abstract

Based on 6 403 research articles in the Web of Science database from 2000 to 2023, information visualization technology is employed to analyze the literature year distribution, keyword co-occurrence and research hot spots, author cooperation network, institutional and national cooperation network, published journals, and co-cited literature in the middle of hydrothermal pretreatment . Our results show that the number of applied research publications related to hydrothermal pretreatment has increased every year in the past two decades. Among these publications, China (36.5%) is the most active country in the world, followed by the United States (14.6%) and Japan (8.2%), with increasing global cooperation. The Chinese Academy of Sciences ranks first among the institutions in the light of total publication output (245 articles, accounting for 3.82%). Among 955 journals, Bioresource Technology is cited the most frequently. The study is centered on the enhancement and potential evolution of lignocellulosic biomass raw materials via hydrothermal pretreatment for subsequent bioenergy transformation. Concurrently, the domain of hydrothermal pretreatment has progressively become more cross-disciplinary, intertwining with the sectors of microbial populations and genomes.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Biofuel production and bioconversion · Biodiesel Production and Applications · Catalysis and Hydrodesulfurization Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (100+)

Show source-provided references
1. Utilization of cellulose to its full potential: a review on cellulose dissolution, regeneration, and applications10.3390/polym13244344 ↗
2. Biomass pretreatment: fundamentals toward application10.1016/j.biotechadv.2011.05.005 ↗
3. Hydrothermal processing of biomass for anaerobic digestion–A review10.1016/j.rser.2018.09.008 ↗
4. Hydrothermal carbonization coupled with fast pyrolysis of almond shells: valorization and production of valuable chemicals10.1016/j.wasman.2023.07.004 ↗
5. Simultaneous production of biogas and volatile fatty acids through anaerobic digestion using cereal straw as substrate10.1016/j.eti.2023.103215 ↗
6. Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: a review10.1016/j.biortech.2009.11.093 ↗
7. Bibliometrix: an R-tool for comprehensive science mapping analysis10.1016/j.joi.2017.08.007 ↗
8. Sustainable biofuel and bioenergy production from biomass waste residues using microwave-assisted heating: a comprehensive review10.1016/j.cej.2020.126233 ↗
9. Enrichment of bio-oil after hydrothermal liquefaction (HTL) of microalgae C. vulgaris grown in wastewater: bio-char and post HTL wastewater utilization studies10.1016/j.biortech.2018.04.029 ↗
10. Advancements in lignocellulosic biomass: a critical appraisal of fourth-generation biofuels and value-added bioproduct10.1016/j.fuel.2023.130751 ↗
11. Synergistic effect of adsorption and photocatalytic degradation of oilfield-produced water by electrospun photocatalytic fibers of Polystyrene/Nanorod-Graphitic carbon nitride10.1016/j.jes.2023.05.041 ↗
12. A review on physico-chemical delignification as a pretreatment of lignocellulosic biomass for enhanced bioconversion10.1016/j.biortech.2021.126591 ↗
13. Effect of severity factor on the hydrothermal pretreatment of sugarcane straw10.1016/j.biortech.2018.12.073 ↗
14. Insight into progress in pre-treatment of lignocellulosic biomass10.1016/j.energy.2017.01.005 ↗
15. Scientometrics in a changing research landscape: bibliometrics has become an integral part of research quality evaluation and has been changing the practice of research10.15252/embr.201439608 ↗
16. Toward a definition of “bibliometrics”10.1007/BF02016680 ↗
17. Hydrothermal/liquid hot water pretreatment (autohydrolysis)
18. Highway planning trends: a bibliometric analysis10.3390/su14095544 ↗
19. Enhanced enzymatic digestibility of water lettuce by liquid hot water pretreatment
20. CiteSpace II: detecting and visualizing emerging trends and transient patterns in scientific literature10.1002/asi.20317 ↗
21. Patterns of connections and movements in dual-map overlays: a new method of publication portfolio analysis10.1002/asi.22968 ↗
22. Liquid hot water as sustainable biomass pretreatment technique for bioenergy production: a review10.1016/j.biortech.2021.126207 ↗
23. Cheng · 2018
24. Biofuels an alternative to traditional fossil fuels: a comprehensive review
25. An empirical investigation of the associations among usage, scientific collaboration and citation impact10.1007/s11192-017-2356-4 ↗
26. An approach for detecting, quantifying, and visualizing the evolution of a research field: a practical application to the fuzzy sets theory field10.1016/j.joi.2010.10.002 ↗
27. Influence of hydrothermal pretreatment conditions, typology of anaerobic digestion system, and microbial profile in the production of volatile fatty acids from olive mill solid waste10.1016/j.jece.2021.105055 ↗
28. The bibliometrics assessment of opportunistic network protocols & simulation tools
29. A comprehensive review of characterization, pretreatment and its applications on different lignocellulosic biomass for bioethanol production10.1007/s13399-021-01294-3 ↗
30. Assessment of suitability of vine shoots for hemicellulosic oligosaccharides production through aqueous processing10.1016/j.biortech.2016.03.153 ↗
31. Biohydrogen production using xylose or xylooligosaccharides derived from sugarcane bagasse obtained by hydrothermal and acid pretreatments10.1016/j.renene.2019.08.089 ↗
32. How to conduct a bibliometric analysis: an overview and guidelines10.1016/j.jbusres.2021.04.070 ↗
33. Preparation of versatile lignin-based adsorbent for the removal of organic dyes and its application in wound healing10.1016/j.molliq.2023.121566 ↗
34. Egghe · 1990
35. Hydrothermal liquefaction of biomass: developments from batch to continuous process10.1016/j.biortech.2014.09.132 ↗
36. Comparative studies of hydrochars and biochars produced from lignocellulosic biomass via hydrothermal carbonization, torrefaction and pyrolysis10.1016/j.joei.2023.101298 ↗
37. Recent insight into anaerobic digestion of lignocellulosic biomass for cost effective bioenergy generation
38. Hydrothermal pretreatment of lignocellulosic biomass
39. Hydrothermal liquefaction of sewage sludge for biofuel application: a review on fundamentals, current challenges and strategies10.1016/j.biombioe.2022.106570 ↗
40. Co-production of xylooligosaccharides and glucose from birch sawdust by hot water pretreatment and enzymatic hydrolysis10.1016/j.biortech.2022.126795 ↗
41. Climate change and tourism: a scientometric analysis using10.1080/09669582.2017.1329310 ↗
42. Integrating anaerobic digestion with hydrothermal pretreatment for bioenergy production: waste valorization of plastic containing food waste and rice husk10.1016/j.bej.2022.108546 ↗
43. Anti-inflammatory potential of ulvan10.1016/j.ijbiomac.2023.126936 ↗
44. Second-generation bioethanol production from corncob–A comprehensive review on pretreatment and bioconversion strategies, including techno-economic and lifecycle perspective10.1016/j.indcrop.2022.115245 ↗
45. Lignin triggers irreversible cellulase loss during pretreated lignocellulosic biomass saccharification10.1186/s13068-014-0175-x ↗
46. Hydrothermal gasification of xylose: effects of reaction temperature, pressure, and K2CO3 as a catalyst on product distribution10.1016/j.biombioe.2016.04.013 ↗
47. A review on hydrothermal liquefaction of biomass10.1016/j.rser.2017.05.178 ↗
48. Tuning hydrothermal pretreatment severity of wheat straw to match energy application scenarios10.1016/j.indcrop.2021.114326 ↗
49. An index to quantify an individual's scientific research output10.1073/pnas.0507655102 ↗
50. Steam explosion as sustainable biomass pretreatment technique for biofuel production: characteristics and challenges10.1016/j.biortech.2023.129398 ↗
51. The h-index, h-core citation rate and the bibliometric profile of the Web of Science database in three configurations10.1108/14684521111176525 ↗
52. Pretreatment of lignocellulose: formation of inhibitory by-products and strategies for minimizing their effects10.1016/j.biortech.2015.10.009 ↗
53. A review on the current status of various hydrothermal technologies on biomass feedstock10.1016/j.rser.2017.05.270 ↗
54. Biochar symbiosis in anaerobic digestion to enhance biogas production: a comprehensive review10.1016/j.jenvman.2023.118743 ↗
55. Hydrothermal carbonization and Liquefaction: differences, progress, challenges, and opportunities10.1016/j.biortech.2021.126084 ↗
56. Techno-economic analysis of producing xylo-oligosaccharides and cellulose microfibers from lignocellulosic biomass10.1016/j.biortech.2021.125726 ↗
57. Improvement of hydrochar/biochar pellets prepared from cotton stalk by hydrothermal pretreatment process10.1016/j.jaap.2023.106263 ↗
58. Laser · 2001
59. Recover energy and materials from agricultural waste via thermochemical conversion10.1016/j.oneear.2022.10.010 ↗
60. Characterization and application of bio-chars from liquefaction of microalgae, lignocellulosic biomass and sewage sludge10.1016/j.fuproc.2014.08.016 ↗
61. Progress and prospects of gene therapy in ophthalmology from 2000 to 2022: a bibliometric analysis10.1016/j.heliyon.2023.e18228 ↗
62. Investigation on the evolution of hydrothermal biochar10.1016/j.chemosphere.2022.135774 ↗
63. Visualized analysis of global green buildings: development, barriers and future directions10.1016/j.jclepro.2019.118775 ↗
64. Visualizing the intellectual landscape and evolution of transportation system resilience: a bibliometric analysis in CiteSpace
65. Bibliometric analysis of articles published in journal of dental sciences from 2009 to 202010.1016/j.jds.2021.08.002 ↗
66. Applications of lignin molecules in energy storage devices
67. Full-text citation analysis: a new method to enhance scholarly networks10.1002/asi.22883 ↗
68. Investigation of the strengthening process for liquid hot water pretreatments
69. Optimization of hydrothermal pretreatment for co-utilization of xylose and glucose of cassava anaerobic residue for producing ethanol10.1016/j.cjche.2018.08.025 ↗
70. Substance bioconversion, hydrolases activity, and metagenomic analysis to unravel the enhanced biomethanation of corn stover with urea-hydrothermal pretreatment10.1016/j.jenvman.2023.117466 ↗
71. A bibliometric analysis of literature on bibliometrics in recent half-century10.1177/01655515231191233 ↗
72. Comparison of single-stage and two-stage hydrothermal pretreatments for improving hemicellulose separation from bamboo chips10.1007/s00226-020-01165-6 ↗
73. Chemical composition and structural features of cellolignin from steam explosion followed by enzymatic hydrolysis of Eucalyptus globulus bark10.1016/j.indcrop.2024.118217 ↗
74. Hydrothermal processing as pretreatment for efficient production of ethanol and biogas from municipal solid waste10.1016/j.biortech.2018.03.115 ↗
75. A review on the hydrothermal processing of microalgal biomass to bio-oil - Knowledge gaps and recent advances10.1016/j.jclepro.2019.01.129 ↗
76. Modeling a biorefinery: converting pineapple waste to bioproducts and biofuel10.1021/acs.jchemed.1c00020 ↗
77. Hydrothermal treatments of walnut shells: a potential pretreatment for subsequent product obtaining10.1016/j.scitotenv.2020.142800 ↗
78. Features of promising technologies for pretreatment of lignocellulosic biomass10.1016/j.biortech.2004.06.025 ↗
79. Bibliometrics: methods for studying academic publishing10.1007/S40037-021-00695-4 ↗
80. Optimization of hydrothermal pretreatment of lignocellulosic biomass in the bioethanol production process10.1002/cssc.201200546 ↗
81. Chemistry and specialty industrial applications of lignocellulosic biomass10.1007/s12649-020-01123-0 ↗
82. Co-word-based science maps of chemical engineering. part I: representations by direct multidimensional scaling10.1016/0048-7333(93)90031-C ↗
83. Sub- and supercritical water hydrolysis of agricultural and food industry residues for the production of fermentable sugars: a review10.1016/j.fbp.2015.11.004 ↗
84. Novel keyword co-occurrence network-based methods to foster systematic reviews of scientific literature
85. Regionalization of rainfall over the Peruvian Pacific slope and coast10.1002/joc.4693 ↗
86. A comprehensive review on lignocellulosic biomass biorefinery for sustainable biofuel production10.1016/j.ijhydene.2021.10.122 ↗
87. Current concepts on bibliometrics: a brief review about impact factor, Eigenfactor score, CiteScore, SCImago Journal Rank, Source-Normalised Impact per Paper, H-index, and alternative metrics10.1007/s11845-018-1936-5 ↗
88. Engineering aspects of hydrothermal pretreatment: from batch to continuous operation, scale-up and pilot reactor under biorefinery concept10.1016/j.biortech.2019.122685 ↗
89. Hydrothermal processing, as an alternative for upgrading agriculture residues and marine biomass according to the biorefinery concept: a review10.1016/j.rser.2012.11.069 ↗
90. Hemicellulose bioconversion10.1007/s10295-003-0049-x ↗
91. Biomethane production as a green energy source from anaerobic digestion of municipal solid waste: a state-of-the-art review10.1016/j.bcab.2023.102866 ↗
92. Hydrothermal pretreatment technologies for lignocellulosic biomass: a review of steam explosion and subcritical water hydrolysis10.1016/j.chemosphere.2021.131372 ↗
93. The production of carbon materials by hydrothermal carbonization of cellulose10.1016/j.carbon.2009.04.026 ↗
94. Pretreatment of lignocellulosic biomass from sugar bagasse under microwave assisted dilute acid hydrolysis for biobutanol production10.1016/j.biortech.2022.127724 ↗
95. Recent advances in understanding the pseudo-lignin formation in a lignocellulosic biorefinery10.1039/C8GC00353J ↗
96. Definition and use of bibliometrics in research10.1016/j.soin.2013.10.002 ↗
97. Role of hydrothermal pretreatment towards sustainable biorefinery10.1016/j.biortech.2022.128271 ↗
98. Effect of physical and thermal pretreatment of lignocellulosic biomass on biohydrogen production by thermochemical route: a critical review10.1016/j.biortech.2022.128458 ↗
99. Lignocellulosic biomass: hurdles and challenges in its valorization10.1007/s00253-019-10212-7 ↗
100. Effects of hydrothermal pretreatment on the dissolution and structural evolution of hemicelluloses and lignin: a review10.1016/j.carbpol.2021.119050 ↗