Propolis recently been isolated from red propolis, and prenylated acids such as 4-hydroxy-3,5-diprenyl cinnamic acid have been documented. An analysis of propolis from Henan, China found sinapinic acid, isoferulic acid, caffeic acid, and chrysin, with the first three compounds demonstrating antibacterial properties. Also, Brazilian red propolis, largely derived from "Dalbergia ecastaphyllum" plant resin, has high relative percentages of the isoflavonoids 3-hydroxy-8,9-dimethoxypterocarpan and medicarpin. Other flavonoids commonly present include galangin and pinocembrin. Caffeic acid phenethyl ester (CAPE) is also a component of some varieties of propolis from New Zealand. Occasionally, worker bees will even gather various caulking compounds of human manufacture, when
Substance abuse prevention It has grown to be a unifying symbol of family and community dedication to preventing the use of alcohol, tobacco, and illicit drugs among youth. Substance abuse prevention Substance Abuse Prevention, also known as drug abuse prevention, is a process that attempts to prevent the onset of substance use or limit the development of problems associated with using psychoactive's substances. Prevention efforts may focus on the individual or their surroundings. A concept known as "environmental prevention" focuses on changing community conditions or policies so that the availability of substances is reduced as well as the demand. Substance abuse prevention efforts