| 摘要 |
PROBLEM TO BE SOLVED: To obtain bamboo leaves useful as a healthy drink, etc., containing a water-soluble chlorophylline, readily oozing a xylooligosaccharide, by heat- treating bamboo leaves of the genus Sasa of the family bamboo in an aqueous solution containing a metal salt and an alkali metal hydroxide, washing the bamboo leaves with water and drying. SOLUTION: Leaves of the genus Sasa of the family bamboo (e.g. Sasa albomarginata) are immersed in warm water, mixed with a metal salt (e.g. ferrous chloride, etc.), heated to 85 deg.C and boiled for 15 minutes and heat-treated with an aqueous solution (e.g. 25% aqueous solution of sodium hydroxide) for 25 minutes at 100 deg.C. Then the treated leaves are washed with water to pH8.5, cut and dried in a dryer at 50 deg.C until its water content reaches 5-20% to give the objective bamboo leaf tea which contains a water-soluble chlorophylline compound (e.g. iron chlorophylline sodium, etc.) and a xylooligosaccharide, readily oozes these active ingredients and is useful as a healthy drink, etc., having antiinflammatory action, anemia improving action, fatigue removing action, foul breath preventing action, appetite promoting action, intestine bettering action, etc. |
