Abstract
The carbohydrates in the pistillate petal of Humulum Lupulum L., hop, were investigated (see Table 2). The following results were obtained.
Glucose, fructose, sucrose, maltose, isomaltose, raffinose (?) and one unknown spot were detected as the free sugars.
Galactose, fructose, glucose, rhamnose, xylose and one unknown spot were detected as the components of glycosides.
Galactose, mannose, glucose, arabinose, rhamnose, fructose, ribose, desoxyribose and galacturonic acid (?) were found as the components of the hot 50% ethanol-soluble polysaccharides.
Mannuronic acid, galactose, mannose, arabinose, rhamnose, ribose and desoxyribose were detected as the components of cold water-soluble polysaccharides, and in addition, galactose, mannose, arabinose, mannuronic acid (?), xylose, rhamnose, ribose and desoxyribose as those of hot water-soluble polysaccharides.
Galactose, arabinose, galacturonic acid and glucose were contained as the components of hot 0.5% ammonium oxalate aq.-soluble polysaccharides (protopectin fraction).
Glucose, xylose and arabinose were detected as the components of hemicellulose.
Cellulose and a small amount of lignin were also detectable.
