Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5156598 | Carbohydrate Polymers | 2017 | 47 Pages |
Abstract
Plantago notata (Plantaginaceae) is a spontaneous plant from Septentrional Algerian Sahara currently used by traditional healers to treat stomach disorders, inflammations or wound healing. A water-soluble polysaccharide, called PSPN (PolySaccharide fraction from Plantago Notata), was extracted and purified from the seeds of this semi-arid plant. The structural features of this mucilage were evaluated by colorimetric assays, Fourier transformed infrared spectroscopy (FT-IR), gas chromatography coupled to mass spectrometry (GC/MS) and 1H/13C Nuclear Magnetic Resonance (NMR) spectroscopy. PSPN is a heteroxylan with a backbone composed of β-(1,3)-d-Xylp and β-(1,4)-d-Xylp highly branched, through (O)-2 and (O)-3 positions of β-(1,4)-d-Xylp by various side chains and terminal monosaccharides such as α-l-Araf-(1,3)-β-d-Xylp, β-d-Xylp-(1,2)-β-d-Xylp, terminal Xylp or terminal Araf. The physico-chemical and rheological analysis of this polysaccharide in dilute and semi diluted regimes showed that PSPN exhibites a molecular weight of 2.3 Ã 106 g/mol and a pseudoplastic behavior.
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Authors
Fatima Benaoun, Cédric Delattre, Zakaria Boual, Alina V. Ursu, Christophe Vial, Christine Gardarin, Anne Wadouachi, Didier Le Cerf, Tony Varacavoudin, Mohamed Didi Ould El-Hadj, Philippe Michaud, Guillaume Pierre,