Arabinoxylan chains contain a large number of 1,4-linked xylose units. Their backbones are composed of β-D-xylopyranosyl units substituted with single α-L-arabinofuranosyl units.[3] Many xylose units are substituted with 2, 3 or 2,3-linked arabinose residues.[4]
Arabinoxylans are one of the main components of soluble and insoluble dietary fibers which are shown to exert various health benefits.[6] In addition, arabinoxylans, owing to their bound phenolic acids, are shown to have antioxidant activity.[7] Their ion exchange capacity and viscosity are also partly responsible for their beneficial metabolic effects.[8]
Referencesedit
^. uga.edu. University of Georgia. Archived from the original on April 16, 2021. Retrieved April 1, 2020.
^McCartney, L; et al. (2005). "Monoclonal Antibodies to Plant Cell Wall Xylans and Arabinoxylans". Journal of Histochemistry and Cytochemistry. 53 (4): 543–546. doi:10.1369/jhc.4b6578.2005. PMID 15805428.
^Marcotuli, Ilaria; Hsieh, Yves S.-Y.; Lahnstein, Jelle; Yap, Kuok; Burton, Rachel Anita; Blanco, Antonio; Fincher, Geoffrey Bruce; Gadaleta, Agata (13 April 2016). "Structural Variation and Content of Arabinoxylans in Endosperm and Bran of Durum Wheat ( Triticum turgidum L.)". Journal of Agricultural and Food Chemistry. 64 (14): 2883–2892. doi:10.1021/acs.jafc.6b00103. hdl:11586/173594. ISSN 0021-8561. Retrieved 5 February 2023.
^Dervilly-Pinel, G; et al. (2004). "Investigation of the distribution of arabinose residues on the xylan backbone of water-soluble arabinoxylans from wheat flour". Carbohydrate Polymers. 55 (2): 171–177. doi:10.1016/j.carbpol.2003.09.004.
^Wakabayashi K, et al (2005). Physiologia Plantarum. 125:127–134
^Izydorczyk, MS; Dexter, JE (2008). "Barley β-glucans and arabinoxylans: Molecular structure, physicochemical properties, and uses in food products–a Review". Food Research International. 41 (9): 850–868. doi:10.1016/j.foodres.2008.04.001.
^Rao, RS; Muralikrishna, G (2006). "Water soluble feruloyl arabinoxylans from rice and ragi: changes upon malting and their consequence on antioxidant activity". Phytochemistry. 67 (1): 91–9. doi:10.1016/j.phytochem.2005.09.036. PMID 16289622.
^Guillon, F; Champ, M (2000). "Structural and physical properties of dietary fibres, and consequences of processing on human physiology". Food Research International. 33 (3–4): 233–245. doi:10.1016/s0963-9969(00)00038-7.
December 15, 2023
arabinoxylan, hemicellulose, found, both, primary, secondary, cell, walls, plants, including, woods, cereal, grains, consisting, copolymers, pentose, sugars, arabinose, xylose, structure, edit, chains, contain, large, number, linked, xylose, units, their, back. Arabinoxylan is a hemicellulose 1 found in both the primary and secondary cell walls of plants including woods and cereal grains 2 consisting of copolymers of two pentose sugars arabinose and xylose Structure editArabinoxylan chains contain a large number of 1 4 linked xylose units Their backbones are composed of b D xylopyranosyl units substituted with single a L arabinofuranosyl units 3 Many xylose units are substituted with 2 3 or 2 3 linked arabinose residues 4 Functions editArabinoxylans chiefly serve a structural role in the plant cells 5 They are also the reservoirs of large amounts of ferulic acid and other phenolic acids which are covalently linked to them Phenolic acids may also be involved in defense including protection against fungal pathogens Arabinoxylans are one of the main components of soluble and insoluble dietary fibers which are shown to exert various health benefits 6 In addition arabinoxylans owing to their bound phenolic acids are shown to have antioxidant activity 7 Their ion exchange capacity and viscosity are also partly responsible for their beneficial metabolic effects 8 References edit Hemicellulosic Polysaccharides uga edu University of Georgia Archived from the original on April 16 2021 Retrieved April 1 2020 McCartney L et al 2005 Monoclonal Antibodies to Plant Cell Wall Xylans and Arabinoxylans Journal of Histochemistry and Cytochemistry 53 4 543 546 doi 10 1369 jhc 4b6578 2005 PMID 15805428 Marcotuli Ilaria Hsieh Yves S Y Lahnstein Jelle Yap Kuok Burton Rachel Anita Blanco Antonio Fincher Geoffrey Bruce Gadaleta Agata 13 April 2016 Structural Variation and Content of Arabinoxylans in Endosperm and Bran of Durum Wheat Triticum turgidum L Journal of Agricultural and Food Chemistry 64 14 2883 2892 doi 10 1021 acs jafc 6b00103 hdl 11586 173594 ISSN 0021 8561 Retrieved 5 February 2023 Dervilly Pinel G et al 2004 Investigation of the distribution of arabinose residues on the xylan backbone of water soluble arabinoxylans from wheat flour Carbohydrate Polymers 55 2 171 177 doi 10 1016 j carbpol 2003 09 004 Wakabayashi K et al 2005 Physiologia Plantarum 125 127 134 Izydorczyk MS Dexter JE 2008 Barley b glucans and arabinoxylans Molecular structure physicochemical properties and uses in food products a Review Food Research International 41 9 850 868 doi 10 1016 j foodres 2008 04 001 Rao RS Muralikrishna G 2006 Water soluble feruloyl arabinoxylans from rice and ragi changes upon malting and their consequence on antioxidant activity Phytochemistry 67 1 91 9 doi 10 1016 j phytochem 2005 09 036 PMID 16289622 Guillon F Champ M 2000 Structural and physical properties of dietary fibres and consequences of processing on human physiology Food Research International 33 3 4 233 245 doi 10 1016 s0963 9969 00 00038 7 Retrieved from https en wikipedia org w index php title Arabinoxylan amp oldid 1174027364, wikipedia, wiki, book, books, library,
