EKSTRAKSI LILIN DAUN PINUS DENGAN TEKNOLOGI SUPERKRITIKALFLUIDA CO2

Bambang Wiyono

Sari


The objectives of this research is to study the influence of flushing activities on crude waxes yield, and to study the extraction of waxes from pine needles by using supercritical fluid C02 technology. The extraction was carried out at an 400C extraction temperature and at various extraction pressures. consisting of  9,14,24 and 30 MPa. Crude waxes were precipitated in the first cold trap at  6-7 MPa intermediate pressure and 00C, and the rest of  it was precipitated in the second cold trap at an 0,1 MPa with a similar temperature. After extraction, it was always followed by flushing activities  through two steps to get waxes which still remained in the valves and or in the line on the system. First flushing was performed with supercritical fluid extraction without any  sample  in  the  extraction  cell. The second flushing  was  conducted  with a chloroform solvent.  Pure waxes of were purified  and analysed by using High Performance Liquid Chromatography (HPLC).

Results indicated that the flushing activities with supercritical fluid extraction without any sample in the extraction cell followed by a chloroform solvent had agreat effect on crude waxes yield. At a 30 MPa extraction pressure and at an 40°C extraction temperature, supercritical fluid extraction with flushing gave crude wax yield four time greater than the cude waxes yield obtained by supercritical fluid extraction without any flushing, even to the crude waxes yield from  the chlorofrom solvent extraction.  The increase in extraction pressure caused an increase in crude waxes, both  obtained from the first and  the second  cold  traps. Moreover,  HPLC analysis of pure waxes revealed  that the elution of pure waxes took 3.70 - 3.90 minutes. lt was also shown that an increase in extraction pressure led to an increase in pure waxes.


Teks Lengkap:

PDF

Referensi


Braun, G. and H Sclunidt, 1984. High Pressure Extraction of Crude Montan Wax.

Physical Chemistry, (88) : 891-894.

Franich, R.A, L.G. Wells, and P.T. Holland. 1978. Epicuticular wax of Pinus radiata

needles. Phytochemistry, 17: 1617-1623.

Hills. J.W. and H.H. Hills. 1993. Carbon Dioxide SFE with a Reactive Solvent Modifier for

Determination of Polycyclic Aromatic Hydrocarbon. J. Chrom. Scs., 31 :6-12.

Knez, Z. and R. Steiner. 1992. Solubility of Capsaicin in Dense C02. The Journal of

Supercritical Fluid, (5):251 - 255.

Revichon, E., P. Russo, and A Stassi, 1993. Solublities of Solid Octacosane and Triocosane

In Supercritical Carbon Dioxide. J. Chem. Eng. Data, 38: 458 - 460.

Riekkola, M.L. and P. Manninen. 1993. Supercritical Fluid Extraction as An Alternative Sample

Preparation Method. Trends in Analytical Chemistry, 12 (3) : 109-114.

Stahl. E.K .W. Quirin. and D. Gerald. 1988 Dense Gases for Extraction and

Subra, P.,R. Tufeu,Y. Garrabos and P. Boissinot. 1991. Supercritical Fluids Extraction from a

Mediterranean Brown Alga. The Journal of Supercritical Fluids, (4) : 244-249

Synder. J.L., R.L. Grob, M.E. Mc Nally and T.S. Oostdyk, 1993. The effect of Instrumental

Parameters and Soil Matrix of the Recovery of Organoclorine and Organophosphate Pesticides from Soils Using SFE. J. Chrom. Scs., 31:183-189.

Tulloch, AP. 1980. Composition of Epicuticular Waxes from 28 Genera of Gramminae:

Differences bertween subfamilies. Can J. Bot., 59 : 1213-J 221.

Wiyono, B., 1995. Ekstraksi Lilin Daun Pinus dengan Pelarut Organik.

Jurnal Penelitian Hasil Hutan, 13 (2) : .52-.59.

--------; dan P.J. Jodan, 1994. effect Supercritical C02 Extraction Temperature on the Yield

of Waxes from Radiata Pine (Pinus radiata D. Don) Needles.

Jumal Penelitian Hasil Hutan, 12 (.5):175-179.

--------. 1994. Pemumian Lilin Kasar yang Diperoleh dari Beberapa Tingkat Suhu Ekstraksi

Superkritikal dengan Metode Kromatografi Cairan Kinerja Tinggi. Jumal Penelitian dan Pengembangan Kehutanan, 9(3): 11-14.




DOI: https://doi.org/10.20886/jphh.1995.13.7.283-292

Refbacks

  • Saat ini tidak ada refbacks.


JURNAL PENELITIAN HASIL HUTAN TERINDEKS DI:

Lebih banyak...


Copyright © 2015 | Jurnal Penelitian Hasil Hutan (JPHH, Journal of Forest Products Research)
eISSN : 2442-8957, pISSN : 0216-4329
JPHH is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.