Galactans


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Galactans

 

(C6H10O5)n, where n≈120, higher polysaccharides, occurring in plant tissues as reserve carbohydrates and structural elements of cell walls, as well as in animal tissues. The main elementary units of galactans are pyranose residues of galactose, joined by glycoside bonds between the first through fourth, as well as first through third and first through sixth, carbon atoms. Galactan metabolism has been little studied. Galactans form the carbohydrate part of agar and are a component of pectins and many plant gums, mucilages, and so on.

References in periodicals archive ?
Galactan sulphate from Aghardhiella tenera (146) and xylomannan sulphate from Nothogenia fastigiata (147, 148) were found to be effective against human immunodeficiency virus (HIV), Herpes simplex virus (HSV) types I and II, respiratory syncytial virus (RSV) and so on.
Structure and anticoagulant activity of a sulfated galactan from the red alga, Gelidium crinale.
Clausen and Kartal (2003) discussed a similar relationship between modulus of rupture (MOR) and galactan reduction in southern pine stakes after 4 weeks exposure to Postia placenta.
Ermel FF, Follet-Gueye ML, Cibert C, Vian B, Morvan C, Catesson AN, Golberg R (2000) Differential localization of arabinan and galactan side-chains of Rhamnogalacturonan I in cambial derivatives.
Liao ML, Chiovitti A, Muro SLA, Craik DJ, Kraft GT, Basic A (1996) Sulfated galactans from Australian specimens of the red alga Phacelocarpus peperocarpos (Gigartinales, Rhodophyta).
DEGLYSOME[R], obtained from Hypnea musciformis algae and rich in galactans, protects the skin from deleterious damages caused by cellular and tissular glycation.
Galactans (galactooligosaccharide): Found in beans, lentils and soybeans, broccoli, cabbage and Brussels sprouts.
They include possibly the most significant polysaccharides when considering enzyme use: pentosans (in particular arabinoxylans) and [beta]-glucans, as well as mannans, arabinans, galactans and xyloglucans.
maximum are due to high content of rapidly fermentable carbohydrates (soluble fiber, oligosaccharides, including some fructans and galactans, and starches resistant to hydrolysis) (CERQUEIRA, 2010).
Is there a correlation between structure and anticoagulant action of sulfated galactans and sulfated fucans.