hemicellulose

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Related to hemicelluloses: Pectins

hemicellulose

[¦he·mē′sel·yə‚lōs]
(biochemistry)
(C6H10O5)n A type of polysaccharide found in plant cell walls in association with cellulose and lignin; it is soluble in and extractable by dilute alkaline solutions. Also known as hexosan.
References in periodicals archive ?
Hemicellulose content was determined according to procedure of Van Soest and Robertson (1985).
fibre, the first stage of thermal degradation is occurred between 40-1000C due to the release of moisture content from the fibre, between 200-2600C the second stage of thermal degradation is occurred which was associated to the degradation of hemicelluloses and lignin of the fibre, and the third stage of thermal degradation was occurred between the temperature range of 320-3800C which was due to the degradation of a-cellulose from the fibre.
The total carbohydrate fraction termed holocellulose (cellulose plus hemicellulose), involves the cellulose fraction; whereas, other sugars (xylans, galactans, mannans and arabinans) represent the hemicellulose fraction (KLOCK et al.
Apart from that, the pyrolysis and crystallization in the xylan and mannosan of the hemicelluloses may also play effective roles in the change in the degree of crystallinity (Akgul et al.
The Proximate and chemical analysis of rice straw and corn stover samples were carried out for volatile matter, fixed carbon, ash contents, crude fiber, ether extract, protein contents, cellulose, hemicelluloses and lignin contents by using method reported by AOAC (1980) and Hames et al.
After centrifugation for 12 minutes at 2,000 g, the supernatants were discarded, and the hemicelluloses were washed successively with ethanol, acetone and ether, then dried at 70[degrees]C.
Dietary fibre includes cellulose, hemicelluloses, gums, pectins and also lignin.
Sago fibres are associated with lignocellulosic components such as cellulose, hemicelluloses, and lignin.
Therefore, it was possible to assess the weight fraction of cellulose, hemicelluloses, and lignin.