The present study was employed the determination of total carbohydrates and monosaccharides from three green algal species are : Chlorella vulgaris, Cladophora crispata and Ulothrix cylindricum isolated from (Al-Ashar,Abul Khaseeb and Garmat –Ali) rivers in Basra.
The results revealed that carbohydrate concentrations reach about (280, 200,120) μg/g in Cl. crispata , U. cylindricum and C. vulgaris Respectively. Gas chromatography technique (GC) the identification of the monosaccharides glucose , rhaminoes, galactose, xyloes & ribose was done, which were differs in their concentration and existence together with different of the algal species. C. vulgaris contain glucose ,ribose , xyloes , rhaminoes ,& galactose in concentrations are (11.5, 8.6 , 8.7 , 8.8 , 8.6 ) % respectively , while Cl. crispata contain rhaminoes, galactose, xyloes, & ribose in concentrations (11.49, 12.3, 10.5, 13.3)% respectively , and U. cylindricum contain a galagtose , xyloes, ribose in concentrations (12.5 , 11.4, 10.5) % respectively . |