Process for preparing L-rhamnose

Details Process for preparing L-rhamnose Process for preparing L-rhamnose

1986-12-22

1988-07-19

Sneed, Helen M. S.

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 43, 127 44, 127 461, 127 34, 127 53, 127 55, 127 56, 127 58, 536128, C13K 100, C13D 100, C13D 114, C13J 106

Patent

active

047582839

ABSTRACT:
This invention relates to a process for readily and efficiently preparing L-rhamnose with the use of a marine alga belonging to the family Monostromaceae, Ulvales.
According to the process of the present invention, rhamnan sulfate is extracted from a marine alga belonging to the family Monostromaceae such as Monostroma nitidium Wittrock and the obtained extract is hydrolyzed by adding acid(s) thereto followed by heating or treating thereof with a cation exchange resin followed by heating to thereby give a solution containing free L-rhamnose.
Since the solution thus obtained contains a large amount of salts, the removal of these salts is significantly important in the preparation of L-rhamnose. In the present invention, an effective process therefor is combined with a conventional method by using an ion exchange resin to thereby establish an efficient desalting process.
Further it is effective to elevate the purity of L-rhamnose by adding baker's yeast, which selectively ferments various sugars, to the solution containing L-rhamnose.

REFERENCES:
patent: 3240755 (1966-03-01), Schweiger
patent: 3856569 (1974-12-01), Strong
W. Pigman et al., The Carbohydrates, vol. IIB, 2nd ed., 1970, pp. 561-563.
Chemical Abstracts, vol. 90, 1979, p. 274, Abstract No. 100140x.
Chemical Abstracts, vol. 51, No. 4, 1957, Abstract No. 2955i.
Chemical Abstracts, vol. 95, 1981, p. 320, Abstract No. 192055c.

Affiliated with

Also associated with

Rating

Process for preparing L-rhamnose does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing L-rhamnose, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing L-rhamnose will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-595391