PENENTUAN
KONSENTRASI LARUTAN KOH TERBAIK PADA SAPONIFIKASI STEARIN HASIL PENGOLAHAN
MINYAK SAWIT KASAR DI MINI PLANT POLITEKNIK KAMPAR
MENGHASILKAN
SABUN DAN GLISEROL
Fatmayati1
and Nur Asma Deli2
1,2Program Studi
Teknik Pengolahan Sawit
Jl. Tengku Muhammad (KM.2), Bangkinang, 28461
ABSTRACT
Politeknik Kampar
as an educational institution based palm oil industry has a mini plant processing crude palm oil plant with a
capacity of 700 kg / batch which
produces olein and stearin. Stearin until now still not processed and utilized
in order to bring economic value. The research purposes
were to examine the use of stearin to produce soap and glycerol, knowing the
best concentration of KOH solution on the process of saponification of palm oil
stearin and produces soap and glycerol in consistent with ISO related. The
preliminary research was conducted to
determine whether stearin can be saponified in order to produces soap and
glycerol. Stearin saponification
was carried out on a variation of
the reaction time is 30; 60; 90 and 120 minutes and the variation of the
concentration of KOH solution is
equal to 3, 4, 5 and 6 N at a temperature of 70 OC and the stirring rate
of 40 rpm. Procedures
analysis of soap characteristics produced in consistent with SNI 06-3532-1994
and procedures analysis of glycerol characteristic produced in consistent with
SNI 06-1564-1995. Stearin, crude palm oil processing results in mini plant
Politeknik Kampar can be used to produces soap and glycerol through the
saponification reaction.. The best concentration of KOH solution in the
saponification process palm oil stearin was at a concentration KOH solution of
3 N. Soap was produced from the reaction
of saponification palm oil sterin had
average free fatty acid of 0.2
and average water content of 2.15 in consistent with SNI 06-3532-1994. However, the characteristics of
the resulting glycerol was not all in consistent with the relevant SNI . Only
average water content of 6.59 and average ash content of 6.10 that consistent
with SNI but average glycerol levels of 10.53 not consistent with SNI
06-1564-1995.
Key words : saponification, stearin, soap, glycerol.
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