Pembuatan Zat Warna Alami dari Kunyit dengan Membran Ultrafiltrasi

Abstract

Too much sintetic colour essence in food can emerge negative effect in human lifebecause it has carsynogenic characteristic which can caused cancer disease. Thenatural colour essence is the one of safety essence to consume and to avoid of cancerpotential in humans body. The direction of this research is to learn about influence offlow rate fowards flux in membrane ultrafiltrate operation. This research accomplishwith pass the dissolve of extract curcuma in membrane ultrafiltrate on several flowrate : 170.5L/hours, 214.9L/hours and 265.3L/hours. The result show that the highestflux reached by 265,3L/hours, and the lowest flux reached by 170,5L/hours, there is0,125L/hours. So, more large flow rate to membrane, you can get the large flux too.Its the same, if give more the lower flow rate you only get the lower flux.

Keywords: flux, membrane ultrafiltrate, natural colour essence