Extracellular Carbohydrates and Polysaccharides of the Alga Chlorella pyrenoidosa Chick S-39

Pleiades Publishing Ltd - Tập 31 - Trang 175-181 - 2004
I. V. Maksimova1, L. B. Bratkovskaya1, S. E. Plekhanov1
1Biological Faculty, Moscow State University, Vorob’evy gory, Moscow, Russia

Tóm tắt

In the growing culture of the thermophilic alga Chlorella pyrenoidosa Chick S-39, the amount of extracellular carbohydrates in the medium reached 5–17% of their content in the cells and 20–40% of the total content of extracellular organic matter. Experiments with the enrichment and synchronous algal cultures showed that the accumulation of extracellular carbohydrates and polysaccharides in the media occurred due to their release from the cells, rather than to cell lysis, and depended on cell photosynthetic activity and reproduction. Chromatographic determination of free sugars revealed the presence of saccharose, glucose, and fructose in the culture medium. Extracellular carbohydrates in C. pyrenoidosa cultures were represented mainly by water-soluble polysaccharides containing galactose, mannose, arabinose, xylose, ribose, fucose, and rhamnose.

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Pleiades Publishing Ltd

Tập 31

175-181

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