Abstrak: The study
on extraction of
oleoresin from ginger
by using ultrasonic
was carried out in
order to obtain the optimum condition of extraction process. The effect of
ratio of ginger to solvent
(ethanol, X1), extraction
temperature (X2), and
extraction duration (X3)
are studied on the yield of oleoresin. Response surface design method
with Central Composite Design (CCD) was
used to obtain a mathematical model
which describes the relationship between the
yield of ginger
oleoresin and influencing
variables. The experimental
results indicate that the optimum condition of extraction which yield of
oleoresin of 11.026% was found at ratio of ginger to ethanol (X1) of 1:4.68
gr.ml-1, extraction
temperature (X2) of 420OC, and extraction duration (X3) of 79
minutes.
Keywords: extraction, response
surface method, ginger oleoresin, ultrasonic
Penulis: Sri Hartuti, M. Dani
Supardan
Kode Jurnal: jpkimiadd120035
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