Modified pectic polysaccharide from turmeric (Curcuma longa): A potent dietary component against gastric ulcer.

Autor: Harsha MR; Department of Biochemistry and Nutrition, CSIR-Central Food Technological Research Institute, KRS Road, Mysore, Karnataka, India., Chandra Prakash SV; Department of Biochemistry and Nutrition, CSIR-Central Food Technological Research Institute, KRS Road, Mysore, Karnataka, India., Dharmesh SM; Department of Biochemistry and Nutrition, CSIR-Central Food Technological Research Institute, KRS Road, Mysore, Karnataka, India. Electronic address: shylaja@cftri.res.in.
Jazyk: angličtina
Zdroj: Carbohydrate polymers [Carbohydr Polym] 2016 Mar 15; Vol. 138, pp. 143-55. Date of Electronic Publication: 2015 Dec 02.
DOI: 10.1016/j.carbpol.2015.11.043
Abstrakt: Native, intact (TrPP) and modified, low-molecular-weight (MTrPP) forms of pectic polysaccharides isolated from turmeric were evaluated for ulcer-preventive potentials in in vitro and in vivo models. Data indicated that MTrPP possessed significantly better ulcer-preventive property than TrPP; inhibiting ulcer scores up to 85%. Results were substantiated by effective muco-protection, H(+),K(+)-ATPase down-regulation, inhibition of H. pylori growth/adherence, higher antioxidant/cytoprotective mechanisms. Structural data indicated TrPP and MTrPP differ in their molecular weights and structural characteristics with different sugar compositions and side chain ratios. MTrPP was rich in galacturonic acid (687mg/g; TrPP-544mg/g) and galactose (52.9%; TrPP-21.7%). Results were substantiated by NMR/FTIR data indicating the presence of homogalacturonan and rhamnogalacturonam-I containing galactans. By virtue of binding to inflammatory marker (galectin-3), galactans may reduce inflammation induced ulcerations. The low molecular weight of MTrPP (155kDa; TrPP-13kDa) may increase its bioavailability than TrPP, thus MTrPP may possess higher antiulcer potential.
(Copyright © 2015 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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