Chemical and thermal characteristics of soluble polysaccharides from fruit pericarps of the Algerian Argania spinosa-Reference-Cited by-同舟云学术

Chemical and thermal characteristics of soluble polysaccharides from fruit pericarps of the Algerian Argania spinosa

Published:2020-11-26 Issue:4 Volume:22 Page:17-21
ISSN:1899-4741
Container-title:Polish Journal of Chemical Technology
language:en
Short-container-title:

Author:

Hachem Kadda¹²,Boudraa Kamel Eddine³²,Kaid-Harche Meriem¹

Affiliation:

1. Laboratoire des Productions, Valorisations Végétales et Microbiennes, Département de Biotechnologie , Université des Sciences et de la Technologie d’Oran – Mohamed Boudiaf , , Oran , Algeria

2. Département de Biologie , Université de Saida – Dr. Moulay Tahar , Saida , Algeria

3. Laboratoire de Recherche sur les Macromolécules , Département de Physique, Faculté des Sciences , Université Abou Bakr Belkaïd , , Tlemcen , Algeria

Abstract

Abstract Soluble polysaccharides were isolated from fruit pericarps of the Algerian Argania spinosa. The cell wall fraction was subjected to sequential extractions with H2O (2 × 2 h at 100°C), EDTA (1%, 6 h at 80°C) and KOH (1 and 4 M, 14 h at 25°C). The structures of the obtained polysaccharide fractions were characterized using gas chromatography (GC), infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The presence of arabinose, galactose and rhamnose in the pectin fractions suggests the presence of rhamnogalacturonan, while the abundance of xylose in the hemicellulosic fractions indicates the presence of xylan. The DSC data revealed the endothermal behavior of all the soluble polysaccharides and only two thermal transitions, the glass transition (Tg) and the fusion transition (Tf) have been recorded.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry,Biotechnology

Link

https://www.sciendo.com/pdf/10.2478/pjct-2020-0033

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