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
Gorilla Glue Gorilla Glue Gorilla Glue is an American brand of polyurethane adhesives. They are known for their original Gorilla Glue, which was first sold to consumers in 1999. The company has since branched out to make a line of similar products, including tapes, epoxies, and other adhesives. The company is based in Cincinnati, Ohio. Polyurethane glues had been popular outside the United States for some time, and were widely used in the woodworking industry. The product was "discovered" by Mark Singer in 1994 being used in Indonesia to make teak furniture. The product was imported to the US and originally sold