Heteropoly acid catalyzed hydrolysis of glycogen to glucose

Miri Klein; Indra Neel Pulidindi; Nina Perkas; Aharon Gedanken

doi:10.1016/j.biombioe.2015.02.036

Heteropoly acid catalyzed hydrolysis of glycogen to glucose

Miri Klein, Indra Neel Pulidindi, Nina Perkas, Aharon Gedanken

Department of Chemistry

National Cheng Kung University

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Complete conversion of glycogen to glucose is achieved by using H₃PW₁₂O₄₀·nH₂O (HPW) and H₄SiW₁₂O₄₀·nH₂O (HSiW) as catalysts for the hydrolysis under optimized hydrothermal conditions (mass fraction of catalyst 2.4%, 373K and 2h reaction time). The reusability of the catalyst (HPW) was demonstrated. In addition to carrying out the glycogen hydrolysis in an autoclave, other novel methods such as microwave irradiation and sonication have also been investigated. At higher mass fraction of the heteropoly acids (10.5%), glycogen could be completely converted to glucose under microwave irradiation. Sonication of an aqueous solution of glycogen in the presence of HPW and HSiW also yielded glucose. Thus, heteropoly acids are efficient, environmentally friendly and reusable catalysts for the conversion of glycogen to glucose.

Original language	English
Pages (from-to)	61-68
Number of pages	8
Journal	Biomass and Bioenergy
Volume	76
DOIs	https://doi.org/10.1016/j.biombioe.2015.02.036
State	Published - 1 May 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

Funding

Gedanken thanks the Israel Science Foundation for supporting the research via a grant 12/586 and also the Ministry of Science and Technology for grant number 3-9802 .

Funders	Funder number
Israel Science Foundation	12/586
Ministry of science and technology, Israel	3-9802

Keywords

Glucose
Glycogen
Heteropoly acid
Hydrothermal
Microwave irradiation
Sonication

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biombioe.2015.02.036

Cite this

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title = "Heteropoly acid catalyzed hydrolysis of glycogen to glucose",

abstract = "Complete conversion of glycogen to glucose is achieved by using H3PW12O40·nH2O (HPW) and H4SiW12O40·nH2O (HSiW) as catalysts for the hydrolysis under optimized hydrothermal conditions (mass fraction of catalyst 2.4%, 373K and 2h reaction time). The reusability of the catalyst (HPW) was demonstrated. In addition to carrying out the glycogen hydrolysis in an autoclave, other novel methods such as microwave irradiation and sonication have also been investigated. At higher mass fraction of the heteropoly acids (10.5%), glycogen could be completely converted to glucose under microwave irradiation. Sonication of an aqueous solution of glycogen in the presence of HPW and HSiW also yielded glucose. Thus, heteropoly acids are efficient, environmentally friendly and reusable catalysts for the conversion of glycogen to glucose.",

keywords = "Glucose, Glycogen, Heteropoly acid, Hydrothermal, Microwave irradiation, Sonication",

author = "Miri Klein and Pulidindi, {Indra Neel} and Nina Perkas and Aharon Gedanken",

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T1 - Heteropoly acid catalyzed hydrolysis of glycogen to glucose

AU - Klein, Miri

AU - Pulidindi, Indra Neel

AU - Perkas, Nina

AU - Gedanken, Aharon

PY - 2015/5/1

Y1 - 2015/5/1

N2 - Complete conversion of glycogen to glucose is achieved by using H3PW12O40·nH2O (HPW) and H4SiW12O40·nH2O (HSiW) as catalysts for the hydrolysis under optimized hydrothermal conditions (mass fraction of catalyst 2.4%, 373K and 2h reaction time). The reusability of the catalyst (HPW) was demonstrated. In addition to carrying out the glycogen hydrolysis in an autoclave, other novel methods such as microwave irradiation and sonication have also been investigated. At higher mass fraction of the heteropoly acids (10.5%), glycogen could be completely converted to glucose under microwave irradiation. Sonication of an aqueous solution of glycogen in the presence of HPW and HSiW also yielded glucose. Thus, heteropoly acids are efficient, environmentally friendly and reusable catalysts for the conversion of glycogen to glucose.

AB - Complete conversion of glycogen to glucose is achieved by using H3PW12O40·nH2O (HPW) and H4SiW12O40·nH2O (HSiW) as catalysts for the hydrolysis under optimized hydrothermal conditions (mass fraction of catalyst 2.4%, 373K and 2h reaction time). The reusability of the catalyst (HPW) was demonstrated. In addition to carrying out the glycogen hydrolysis in an autoclave, other novel methods such as microwave irradiation and sonication have also been investigated. At higher mass fraction of the heteropoly acids (10.5%), glycogen could be completely converted to glucose under microwave irradiation. Sonication of an aqueous solution of glycogen in the presence of HPW and HSiW also yielded glucose. Thus, heteropoly acids are efficient, environmentally friendly and reusable catalysts for the conversion of glycogen to glucose.

KW - Glucose

KW - Glycogen

KW - Heteropoly acid

KW - Hydrothermal

KW - Microwave irradiation

KW - Sonication

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JO - Biomass and Bioenergy

JF - Biomass and Bioenergy

ER -

Heteropoly acid catalyzed hydrolysis of glycogen to glucose

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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