Fractionation and characterisation of pectin-rich extracts from garlic biomass.

Autor: Sunanta P; Research unit for Innovation in responsible Food production for consumption of the Future (RIFF), Multidisciplinary Research Institute, Chiang Mai University, Chiang Mai, Thailand; Plant Bioactive Compound Laboratory (BAC), Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand., Rose Sommano S; Plant Bioactive Compound Laboratory (BAC), Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand., Luiten CA; The Ferrier Research Institute, Victoria University of Wellington, 69 Gracefield Road, Lower Hutt 5010, New Zealand., Ghofrani M; The Ferrier Research Institute, Victoria University of Wellington, 69 Gracefield Road, Lower Hutt 5010, New Zealand., Sims IM; The Ferrier Research Institute, Victoria University of Wellington, 69 Gracefield Road, Lower Hutt 5010, New Zealand., Bell TJ; The Ferrier Research Institute, Victoria University of Wellington, 69 Gracefield Road, Lower Hutt 5010, New Zealand., Carnachan SM; The Ferrier Research Institute, Victoria University of Wellington, 69 Gracefield Road, Lower Hutt 5010, New Zealand., Hinkley SFR; The Ferrier Research Institute, Victoria University of Wellington, 69 Gracefield Road, Lower Hutt 5010, New Zealand., Kontogiorgos V; Food, Nutrition and Health, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, Canada. Electronic address: v.kontogiorgos@ubc.ca.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2024 Mar 15; Vol. 436, pp. 137697. Date of Electronic Publication: 2023 Oct 09.
DOI: 10.1016/j.foodchem.2023.137697
Abstrakt: Polysaccharides from garlic waste leaf and skin biomass have been isolated using a sequential extraction protocol and characterised using constituent sugar composition and linkage analysis, spectroscopy, chromatography and dilute solution viscometry. The results revealed that the isolated polysaccharides were predominantly pectins. The predominant monosaccharide in all samples was galacturonic acid (>61 %), followed by galactose and rhamnose. The pectins extracted from skin biomass were mainly homogalacturonan (83-91 %), whereas those extracted from leaf biomass comprised both homogalacturonan (62-65 %) and rhamnogalacturonan-I (35-38 %). The degree of methyl esterification of uronic acids in all samples was 44-56 %. The peak molecular weight of the main polysaccharide population in each sample was ∼ 350 x10 3 g/mol, with leaf extracts and the skin acidic extract containing a second, lower molecular weight peak. Overall, waste garlic biomass is a potential resource for commercial pectin extraction for use in food or pharmaceutical industries.
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.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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