Fractionation of valuable compounds from citrus essential oil using supercritical CO2 - Terada, Akihiro; Tanaka, Masahiro; Kitajima, Nahoko; Machmudarh, Siti; Hoshino, Munehiro; Sasaki, Mitsuru; Goto, Motonobu (Journal of bioscience and bioengineering, 2009)