Gel-forming semisynthetic polygalactan metallic oxide complex

Details Gel-forming semisynthetic polygalactan metallic oxide complex Gel-forming semisynthetic polygalactan metallic oxide complex

1984-02-22

1987-05-26

Brown, Johnnie R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 11, 536114, 536123, 435243, 435262, C12P 1906, C07H 2300

Patent

active

046687793

ABSTRACT:
A flake-powder preparation of a polygalactan having randomly interlaced chains of alternating D and L forms and bonded to fine grain aluminum oxide, silicon oxide and titanium oxide disposed throughout the powder and chemically bonded to the chains to form chemical complexes therewith, is used as a substitute for agar-agar as a culture medium. The powder is soluble in water upon heating to a temperature of 80.degree. C. and forms a reversible gel upon cooling.

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Young et al., Enzymatic Hydrolysis of Agar and Properties of Bacterial Agarases, Proc. 7th. International Seaw. Symp., Sapparo, Japan, 1971, pp. 469-472, Tokyo Press 1972.

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