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GEOREF RECORD

Study of the Maillard reaction products formed by glycine and D-glucose on different mineral substrates

M. Bosetto, P. Arfaioli and O. L. Pantani
Study of the Maillard reaction products formed by glycine and D-glucose on different mineral substrates
Clay Minerals (March 2002) 37 (1): 195-204

Abstract

This work deals with the formation of humic-like compounds, products of the Maillard reaction between glycine and D-glucose, on clay (K (super +) , Ca (super 2+) and Al (super 3+) -saturated montmorillonite and kaolinite) and quartz systems in the presence of the same cations. Natural quartz was used as the control while the effect of cation type, mineral substrate and CEC was evaluated. All the systems form humic-like substances that are probably responsible for the decrease in the pH (H (sub 2) O) after 30 d. The type of cation does not influence the overall production of humic substances, while the amount of cations controls the formation of humic-like material especially in the presence of clays. A mineral surface is necessary to synthesize molecules with this high degree of complexity. Fulvic-like compounds are produced in great amounts on natural quartz and their formation is hampered by the presence of "free" cations, regardless of their amount. Humic substances do not penetrate the interlayer of montmorillonite.


ISSN: 0009-8558
EISSN: 1471-8030
Coden: CLMIAF
Serial Title: Clay Minerals
Serial Volume: 37
Serial Issue: 1
Title: Study of the Maillard reaction products formed by glycine and D-glucose on different mineral substrates
Affiliation: Universita di Firenze, Dipartimento di Scienza del Suolo e Nutrizione della Pianta, Firenze, Italy
Pages: 195-204
Published: 200203
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
References: 43
Accession Number: 2002-064431
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables
Secondary Affiliation: CNR, ITA, Italy
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 200220
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