| Literature DB >> 27612524 |
Jiadong Sun1, Hang Ma1, Navindra P Seeram1, David C Rowley1.
Abstract
Maple syrup is a widely consumed plant-derived natural sweetener produced by concentrating xylem sap collected from certain maple (Acer) species. During thermal evaporation of <span class="Chemical">water, natural phytochemical components are concentrated in maple syrup. The polymeric components from maple syrup were isolated by ethanol precipitation, dialysis, and anion exchange chromatography and structurally characterized by glycosyl composition analysis, glycosyl linkage analysis, and nuclear magnetic resonance spectroscopy. Among the maple syrup polysaccharides, one neutral polysaccharide was characterized as inulin with a broad molecular weight distribution, representing the first isolation of this prebiotic carbohydrate from a xylem sap. In addition, two acidic polysaccharides with structural similarity were identified as arabinogalactans derived from rhamnogalacturonan type I pectic polysaccharides.Entities:
Keywords: arabinogalactan; inulin; maple syrup; polysaccharide
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Year: 2016 PMID: 27612524 PMCID: PMC5819732 DOI: 10.1021/acs.jafc.6b03139
Source DB: PubMed Journal: J Agric Food Chem ISSN: 0021-8561 Impact factor: 5.279