The extensive prospects of polysaccharides in medicine and pharmaceuticals have elicited much interest. Ligusticum chuanxiong polysaccharides, previously extracted as neutral polysaccharides, exhibit antioxidant, anticancer, andantibacterial capacities in vitro. Here we show one pectic polysaccharide extracted from rhizome of L. chuanxiong(LCP-II-I). Structural analysis indicated its long homogalacturonan region is interrupted by rhamnogalacturonan type I, with arabinan and arabinogalactan type I as side chains. Intake of the LCP-II-I significantly promoted the expression of antioxidant enzymes and their master regulator PGC-1α, resulting in higher antioxidant capacity in jejunum and cecum of aged mice. Consistently, treatment with LCP-II-I promotes antioxidant enzymes expression, and protects SW480 cells against HO induced oxidative stress. Our work isolates and identifies a pectic polysaccharide, LCP-II-I, and reveals its potential application in antioxidant defense, which will be important for oxidative stress related disorders treatment in aging intestine.
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http://dx.doi.org/10.1016/j.carbpol.2017.06.122 | DOI Listing |
Plants (Basel)
December 2024
Área de Fisiología Vegetal, Facultad de Ciencias Biológicas y Ambientales, Universidad de León, 24007 León, Spain.
Cell walls play essential roles in cell recognition, tissue adhesion, and wound response. In particular, pectins as cell-adhesive agents are expected to play a key role in the early stages of grafting. To test this premise, this study focused on examining the dynamics of the accumulation and degree of methyl-esterification of pectic polysaccharides at the graft junctions using tomato autografts as an experimental model.
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January 2025
College of Food Science and Engineering, Guiyang University, Guiyang, Guizhou 550005, PR China; Engineering Technology Research Center for Processing and Comprehensive Utilization of Idesia polycarpa, National Forestry and Grassland Administration of the People's Republic of China, Guiyang, Guizhou 550005, PR China. Electronic address:
Idesia polycarpa Maxim (IPM) cake meal, a major by-product of oil extraction, is often discarded in large quantities, resulting in considerable waste. This study explored the extraction of IPM polysaccharides (IPMPs) from cake meal using the innovative ultrasonic-assisted three-phase partitioning (UTPP) method, in comparison with conventional techniques, including acid, medium-temperature alkali, chelating agent, and enzyme extraction methods. The IPMP-UT prepared via UTPP method achieved superior extraction efficiency (10.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, 9 Bankowa St., 40-007 Katowice, Poland.
The (bladderworts) species are carnivorous plants that prey mainly on invertebrates using traps (bladders) of leaf origin. On the outer surfaces of the trap, there are dome-shaped glands (capitate trichomes). Each such trichome consists of a basal cell, a pedestal cell, and a terminal cell.
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November 2024
U.S. Horticultural Research Laboratory, Agricultural Research Service, United States Department of Agriculture, Fort Pierce, FL 34945, USA.
Steam explosion (STEX) of peel from commercially juice-extracted oranges was used to convert peel pectin into pectic oligosaccharides (POSs). Surprisingly uniform populations, based on the polydispersity index (PDI; weight-average molecular weight (M)/number-average molecular weight (M)) of POSs, were obtained from the Hamlin and Valencia varieties of . The POSs from Hamlin and Valencia peel had PDI values of (1.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China. Electronic address:
Ulcerative colitis (UC) is a relapsing disease with an increasing morbidity and prevalence. Dietary polysaccharides have recently become a research hotspot because of their therapeutic effects and safety on UC. Our previous research elucidated that pectic polysaccharide from Phyllanthus emblica L.
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