Olearia

PES4S (Rhodomonas CS24) LHCII (Spinacia olearia) Chlorosome (Chi. aurantiacus)... 

Foreign. There are a number of foreign journals devoted to the field of fats and oils. Among the most important are Fette und Seifen in Germany, Oleagineaux in France, Olearia in Italy, and Masloboino Zhirovae Delo in Russia. As in America, many other technical journals carry articles of importance to the edible oil industry. 

About one hundred ursanes have been obtained from nature so far. Most important of these is ursolic acid (540), first isolated in 1854 from leaves of Arc-tostaphylos uva-ursi. It is widely distributed in nature and has been mostly obtained from leaves and fruits, but has also been isolated from the bark of certain trees - e.g., Olearia paniculata and Betula pendula (207, 228). As already mentioned, a-amyrin (539) occurs together with 8-amyrin in Manila elemi resin, a-Amyrenone (the ketone corresponding to 539) occurs in the heartwood of Diospyros ebenum (174). ll)8-Hydroxy-a-amyrin has been isolated from black dammar, the resinous exudate of Canarium strictum (198). Other important members are 8-boswellic acid (541) from the oleoresin from Boswellia spp., and asiatic acid (542) first isolated from the leaves of Centella asiatica but also present in dammar resin (109, 228). 11-Oxoasiatic acid is a component of the resin from... 

Jeffries, P.R., J.R. Knox, K.R. Price, B. Scaf Constituents of the tumor-inhibitory extract of Olearia muelleri. Aust. J. Chem. 27, 221 (1974). 

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