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Efficient alcoholysis of saponins to diosgenin catalyzed by sulfonated biochar from Dioscorea zingiberensis residue.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Efficient alcoholysis of saponins to diosgenin catalyzed by sulfonated biochar from Dioscorea zingiberensis residue.
Συγγραφείς: Yu W; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China., Chen L; School of Health Care Technology, Dalian Neusoft University of Information, 116023 PR China., Yin H; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China., Lu R; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China. Electronic address: lurui@dicp.ac.cn., Liu Z; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China., Lu F; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China. Electronic address: lufang@dicp.ac.cn.
Πηγή: Bioresource technology [Bioresour Technol] 2026 Aug; Vol. 453, pp. 134669. Date of Electronic Publication: 2026 Apr 20.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Elsevier Applied Science Country of Publication: England NLM ID: 9889523 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2976 (Electronic) Linking ISSN: 09608524 NLM ISO Abbreviation: Bioresour Technol Subsets: MEDLINE
Imprint Name(s): Original Publication: Barking, Essex, England : New York, N.Y. : Elsevier Applied Science ; Elsevier Science Pub. Co., 1991-
Ιατρικοί όροι (MeSH): Dioscorea*/chemistry , Saponins*/chemistry , Saponins*/metabolism , Diosgenin*/chemistry , Charcoal*/chemistry , Sulfonic Acids*/chemistry, Catalysis
Περίληψη: Diosgenin represents a key precursor in the synthesis of steroidal pharmaceuticals, yet its conventional production relies on strong acid hydrolysis, which generates substantial acidic wastewater and poses serious environmental concerns. To circumvent these issues, a sustainable strategy for precise engineering of acid site in biochar catalysts derived from Dioscorea zingiberensis residues is presented. The carbon supports were prepared by direct calcination of the biomass residues across a controlled temperature range without exogenous additives, allowing tailored specific surface parameters. Subsequent sulfonation introduced sulfonic acid groups as the primary active sites, along with carboxylic acid groups and other weak acid species. A linear correlation was identified between the specific surface area and total acid site density, enabling rational regulation of acidic properties. Alcoholysis of saponins catalyzed by C-800-SO3H (derived from calcination at 800 °C with subsequent sulfonation) enabled a diosgenin yield of 23.26% based on crude saponins, equivalent to 4.39% relative to the raw rhizome mass. Catalytic performance correlated strongly with sulfonic acid density, indicating that sulfonic acid groups dominate the catalytic conversion. The catalyst also retained considerable activity over five reuse cycles. This work establishes a rational and eco-compatible route for designing high-performance solid acid catalysts from biomass waste, demonstrating promising potential for green production of pharmaceutical intermediates.
(Copyright © 2026. Published by Elsevier Ltd.)
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Contributed Indexing: Keywords: Alcoholysis; Carbon-based solid acid; Dioscorea zingiberensis; Diosgenin; Heterogeneous catalysis
Substance Nomenclature: 0 (Saponins)
K49P2K8WLX (Diosgenin)
16291-96-6 (Charcoal)
0 (biochar)
0 (Sulfonic Acids)
Entry Date(s): Date Created: 20260422 Date Completed: 20260715 Latest Revision: 20260715
Update Code: 20260716
DOI: 10.1016/j.biortech.2026.134669
PMID: 42019688
Βάση Δεδομένων: MEDLINE
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  Data: Efficient alcoholysis of saponins to diosgenin catalyzed by sulfonated biochar from Dioscorea zingiberensis residue.
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  Data: <searchLink fieldCode="AU" term="%22Yu+W%22">Yu W</searchLink>; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.<br /><searchLink fieldCode="AU" term="%22Chen+L%22">Chen L</searchLink>; School of Health Care Technology, Dalian Neusoft University of Information, 116023 PR China.<br /><searchLink fieldCode="AU" term="%22Yin+H%22">Yin H</searchLink>; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.<br /><searchLink fieldCode="AU" term="%22Lu+R%22">Lu R</searchLink>; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China. Electronic address: lurui@dicp.ac.cn.<br /><searchLink fieldCode="AU" term="%22Liu+Z%22">Liu Z</searchLink>; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China.<br /><searchLink fieldCode="AU" term="%22Lu+F%22">Lu F</searchLink>; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116032 PR China. Electronic address: lufang@dicp.ac.cn.
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  Data: <searchLink fieldCode="MM" term="%22Dioscorea%22">Dioscorea*</searchLink>/<searchLink fieldCode="MM" term="%22Dioscorea+chemistry%22">chemistry</searchLink> <br /><searchLink fieldCode="MM" term="%22Saponins%22">Saponins*</searchLink>/<searchLink fieldCode="MM" term="%22Saponins+chemistry%22">chemistry</searchLink> <br /><searchLink fieldCode="MM" term="%22Saponins%22">Saponins*</searchLink>/<searchLink fieldCode="MM" term="%22Saponins+metabolism%22">metabolism</searchLink> <br /><searchLink fieldCode="MM" term="%22Diosgenin%22">Diosgenin*</searchLink>/<searchLink fieldCode="MM" term="%22Diosgenin+chemistry%22">chemistry</searchLink> <br /><searchLink fieldCode="MM" term="%22Charcoal%22">Charcoal*</searchLink>/<searchLink fieldCode="MM" term="%22Charcoal+chemistry%22">chemistry</searchLink> <br /><searchLink fieldCode="MM" term="%22Sulfonic+Acids%22">Sulfonic Acids*</searchLink>/<searchLink fieldCode="MM" term="%22Sulfonic+Acids+chemistry%22">chemistry</searchLink><br /><searchLink fieldCode="MH" term="%22Catalysis%22">Catalysis</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Diosgenin represents a key precursor in the synthesis of steroidal pharmaceuticals, yet its conventional production relies on strong acid hydrolysis, which generates substantial acidic wastewater and poses serious environmental concerns. To circumvent these issues, a sustainable strategy for precise engineering of acid site in biochar catalysts derived from Dioscorea zingiberensis residues is presented. The carbon supports were prepared by direct calcination of the biomass residues across a controlled temperature range without exogenous additives, allowing tailored specific surface parameters. Subsequent sulfonation introduced sulfonic acid groups as the primary active sites, along with carboxylic acid groups and other weak acid species. A linear correlation was identified between the specific surface area and total acid site density, enabling rational regulation of acidic properties. Alcoholysis of saponins catalyzed by C-800-SO<subscript>3</subscript>H (derived from calcination at 800 °C with subsequent sulfonation) enabled a diosgenin yield of 23.26% based on crude saponins, equivalent to 4.39% relative to the raw rhizome mass. Catalytic performance correlated strongly with sulfonic acid density, indicating that sulfonic acid groups dominate the catalytic conversion. The catalyst also retained considerable activity over five reuse cycles. This work establishes a rational and eco-compatible route for designing high-performance solid acid catalysts from biomass waste, demonstrating promising potential for green production of pharmaceutical intermediates.<br /> (Copyright © 2026. Published by Elsevier Ltd.)
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  Data: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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  Data: <i>Keywords: </i>Alcoholysis; Carbon-based solid acid; Dioscorea zingiberensis; Diosgenin; Heterogeneous catalysis
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  Data: 0 (Saponins)<br />K49P2K8WLX (Diosgenin)<br />16291-96-6 (Charcoal)<br />0 (biochar)<br />0 (Sulfonic Acids)
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        Text: English
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        StartPage: 134669
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      – SubjectFull: Catalysis
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      – SubjectFull: Dioscorea chemistry
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      – SubjectFull: Saponins chemistry
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      – TitleFull: Efficient alcoholysis of saponins to diosgenin catalyzed by sulfonated biochar from Dioscorea zingiberensis residue.
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              Text: 2026 Aug
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