Detection of Inulin, a Prebiotic Polysaccharide, in Maple Syrup.
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 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.
Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island , Kingston, Rhode Island 02881, United States.
Jiadong
J
Sun
Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island , Kingston, Rhode Island 02881, United States.
Hang
H
Ma
Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island , Kingston, Rhode Island 02881, United States.
Navindra P
NP
Seeram
Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island , Kingston, Rhode Island 02881, United States.
David C
DC
Rowley
D031002:Acer / Q000737:chemistry*; D005685:Galactans / Q000032:analysis; D007444:Inulin / Q000032:analysis*; D008970:Molecular Weight; D064427:Nutritive Sweeteners / Q000032:analysis; D010368:Pectins / Q000032:analysis; D056692:Prebiotics / Q000032:analysis*
D005685:Galactans; D064427:Nutritive Sweeteners; D056692:Prebiotics; C042491:rhamnogalacturonan I; D010368:Pectins; D007444:Inulin; C005653:arabinogalactan
arabinogalactan; inulin; maple syrup; polysaccharide