PROSES EKSTRAKSI REAKTIF MINYAK JAHE DENGAN KATALIS HCL DENGAN BERBANTUKAN GELOMBANG ULTRASONIK
ABSTRACT: The increased
consumption of essential oil is mainly used in the pharmaceutical industry. One
type of the essential oil is ginger oil (Zingiber officinale). The main of
reaction to produce ginger oil is esterification reaction. The reaction takes
place relative slowly, and it doesn’t
occur perfectly so it needs many catalyzes and alcohol.This research is
expected can reduce the acid level of ginger oil and it can be obtained by the
reaction of ginger oil product assisted by ultrasonic waves. The aim of this
research is to obtain optimumconditions forginger
oilproductionprocesswithultrasonicwaveswhich includesa variabletemperature,
catalyst concentrationto the weight ofmethanol, and theweight ratio
ofmethanolbyweight ginger, to determine the most variables effect are
temperature, catalyst concentrationto the weight ofmethanol, and theweight
ratio ofmethanolbyweight ginger, toacquirethe characteristics ofginger
oilgenerated with low acid level, and to know zingerone component in ginger
oil. The research is done by ultrasonic cleaner with frequency of 40 KHz, time
for reaction is 60 minutes. In this research, the variabels include the ratio
of weight ginger with methanol 1:8, 1:10, 1:12, the catalyst of 2%
methanol(wt),3% methanol(wt), 4% methanol(wt), And the reaction of variable
temperature of 400C, 600C, 800C. The optimum variables with central composite
design are the ratio of weight ginger with methanol 1:9,72; the catalyst of 3,21 % methanol(wt), And the
reaction of variable temperature of 65,920C so it has getting an optimum yield
67,09%. highest of ginger oil conversion
obtained were 64,97%, with ginger :
metanol of 1:10, catalyst of 3% and operation temperature of 60oC.
Penulis: Dian Arofisma,
Maharani Kusumaningrum, Abdullah
Kode Jurnal: jpkimiadd130321
