Biochemical Studies on Carbohydrates

CII. On the Jelly of Toad and Frog Eggs. First Report

Abstract

1. Glycidamins were prepared from the jelly of toad (Bufo vulgaris formosus Boulenger) and frog (Rana japonica Guenther) eggs.
2. The toad mucinogen and mucin involved hexosamine and galac-tose in the molecular ratio of 2:3 and the frog mucinogen in the corres-ponding ratio of 1:2. Methylpentose was detected but was small. 3. Galactose of the toad mucinogen hydrochloride was identified as the methylphenylhydrazone.
4. The preparations from the toad jelly were found A group-active, but those from the frog jelly not.
We are indebted to the Grant Committee for Scientific Researches. of the Education Department for a grant which covered the expenses of this work.