Abstract
The carbohydrates in the petal of Hydrangea macrophylla SERINGL var. Otakusa MAKINO hydrangea, were investigated (see Table 2).
The following results were obtained.
Fructose, glucose, sucrose, maltose, raffinose and stachyose were detected as free sugars, and their contents are shown in Table 4.
Glucose, galactose, xylose, arabinose, rhamnose, fructose, galacturonic acid, ribose and desoxyribose were the component sugars of glycosides.
Glucose, galactose, xylose, arabinose, galacturonic acid, rhamnose, ribose, desoxyribose and fructose were detected as the component sugars of the hot 50% ethanol-soluble polysaccharides.
Glucose, xylose, arabinose, galacturonic acid, mannuronic acid (?) and ribose were found as the components of the cold water-soluble polysaccharides, and, in addition, glucose, arabinose and galacturonic acid as those of hot water-soluble polysaccharides.
Galactose, arabinose galacturonic acid and small amounts of glucose and mannose were found as the components of the protopectin fraction.
As the components of hemicellulose, glucose, mannose, xylose, rhamnose, fructose and ribose were detectable.
Cellulose and a small amount of lignin were detected also.
