Antibacterial soap containing catalpa bungei composition and preparation method

• Main Authors: CHEN XIANFEI, LI WENDAN, WANG LING, DU SHU, DENG ZHANGSHUANG, WU CHENTING, LIU SHAN
• Format: Patent
• Language: Chinese; English
• Published: 05.05.2023
• Subjects: AGRICULTURE; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CANDLES; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; FATTY ACIDS THEREFROM; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; METALLURGY; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; TRAPPING; USE OF SINGLE SUBSTANCES AS DETERGENTS

The invention relates to a catalpa bungei antibacterial composition, and the catalpa bungei antibacterial composition comprises a mixture formed by catalpa lactone and 4, 9-dihydroxy-alpha-lapamoquinone. The mass fraction of the catalpa lactone is 50 to 65 percent, and the mass fraction of the 4, 9-dihydroxy-alpha-lapachone is 20 to 30 percent. The method for separating and extracting the catalpa bungei by taking the catalpa bungei as the raw material comprises the following steps of: placing catalpa bungei heartwood powder in a dichloromethane solvent for cold soaking at normal temperature, and evaporating the solvent in the obtained extracting solution under reduced pressure to dryness to obtain dark brown extract; and performing chromatographic separation on the obtained dark brown extract by using a silica gel column, leaching by using a mixed solvent of dichloromethane and methanol, eluting by using pure methanol after the elution is finished, collecting methanol eluent, and performing vacuum concentrati