Is there an official translation for oleogustus, yet? io9


  There are five acknowledged tastes: sweet, sour, bitter, salty, and (slightly more controversially) umami. For awhile now, researchers have suggested the existence of a sixth taste: fat. Now, a new study has researchers saying they may have finally isolated it—and they’ve given it a name: oleogustus.


oleogustus in Chinese news media is usually written in English with a parenthetically explanation something along the lines of:


  oleogustus(在拉丁语中意思是脂肪味)



is there an official translation yet?


Although I'm only expecting it to be something like 脂味.
I think it's translated as:

脂肪味

Sources:

http://news.sciencenet.cn/htmlnews/2015/7/323886.shtm
http://politics.people.com.cn/n/2015/0729/c70731-27376218.html

Baike has an article on it too, but that seems to be related to an earlier US finding related to the gene CD36.
Interestingly, your suggestion of 脂味 appears to be the preferred Japanese translation.