| dc.description.abstract | Lycopene is a carotenoid compounds which as an antioxidants and has a red
pigment found in plant tissues such as tomatoes. Lycopene could be made
into potential compound to health of human body through processed tomato
products. Studies on the utilization of lycopene had been conducted to
determine the effect of comparison feed and solvent (F/S) and the addition
of methanol for extraction of lycopene from tomatoes using mixture solvent
of hexane:ethyl acetate (1:1) followed by crystallization antisolvent. In this
research, ripe tomatoes juice was used with volume 150 ml. Lycopene
extract was obtained through extraction method at temperature of 70 °C
and the stirring speed 7 rpm. The other method was by the addition of
methanol as antisolvent for crystallization. As for changing variable in this
study were a comparison of feed and solvent (F/S) 1:2; 1:2.5; 1:3; 1:3.5;
1:4 and 1:4,5, and the volume of methanol as antisolvent were 50 ml, 100
ml, 150 ml and 200 ml. The results of this research about influence of feed
and solvent to lycopene yield extracted obtained at the optimum condition
1:4 with a volume of 200 ml antisolvent. Whereas the influence about
addition of methanol as antisolvent as an agent of precipitation and
maximum condition occurs on volume of 200 ml. Wavelength analysis of
C=C linkage with Fourier Transform Infrared (FT-IR) detected at
wavenumber 1519,91 cm-1
, CH2 linkage detected at wavenumber 1446,61
cm-1
, R-CH=CH-R linkage detected at wavenumber 979,84 cm-1
. While,
C-C and C-CH linkage detected at wavenumber 1138 and 1373,32 cm-1
. | en_US |
