PHYSICOCHEMICAL PROPERTIES OF RAMBUTAN SEED FAT
Keywords:
Rambutan, Rambutan seed, Rambutan seed fatAbstract
Rambutan (Nephelium lappaceum L.) fruit is abundantly present in Malaysia. It is a seasonal
fruit that present twice a year. It has short shelf life at ambient temperature has contributed to
fruit wastage. Thus, the initiative of producing canned rambutan is an innovation that makes
rambutan fruit available throughout the year. The canned rambutan industry leaves large
amount of rambutan seed. This study focused on utililization of rambutan seed as valuable
product which is Rambutan Seed Fat (RSF). The RSF was extracted using Soxhlet Extraction
method for 8 hours. The objective of this study was to determine the physicochemical properties
of RSF: melting point (°C), Refractive Index (RI), Total Carotene Content (TCC), water activity
(Aw), acid value (AV), peroxide value (PV) and saponification value (SV). The results showed
that: 38.00±1.00 – 48.83±1.61°C melting point, 1.46±0.00 RI, 1.18±0.06 mg/kg TCC,
0.4721±0.0176 Aw, 1.2162±0.1520 mg KOH/g AV, 9.6000±0.4000 g/g PV and
146.8040±18.0182 mg KOH/g SV, respectively. According to the results, RSF showed high
industrial potential as cocoa butter replacement in chocolates and cosmetics production as the
physicochemical properties of RSF is quite similar to cocoa butter.
References
Akhter, S., McDonald, M. A. and Marriott, R. (2016). “Mangifera sylvatica (Wild Mango): A
New Cocoa Butter Alternative,” Scientific Reports, 6, 32050.
George, A. K. and Singh, R. N. (2015). “Correlation of Refractive Index and Density of Crude
Oil and Liquid Hydrocarbon,” International Journal of Chemical, Environmental and
Biological Sciences, 3, 5, 2320-4087.
Kaleem, A., Aziz, S., Iqtedar, M., Abdullah, S., Aftab, M., Rashid, F., Rauf, S. F. and Naz, S.
(2016). “Investigating Changes and Effect of Peroxide Values in Cooking Oils Subject to
Light and Heat,” FUUAST J. Biology, 5, 2, 191-196.
Lasekan, O. O. and Shabnam, M. (2013). “Effect of Traditional Fermentation as a Pre-treatment
to Decrease the Antinutritional Properties of Rambutan Seed (Nephelium lappaceum L.),”
International Conference on Food and Agricultural Sciences, 55, 67-72.
Lourith, N., Kanlayavattanakul, M., Mongkonpaibool, K., Butsaratrakool, T. and Chinmuang,
T. (2016). “Rambutan Seed as a New Promising Unconventional Source of Specialty Fat
for Cosmetics,” Industrial Crops and Products, 83, 149-154.
Mahisunt, B., Na Jom, K. and Matsukawa, S. (2016). “Solvent Fractionation of Rambutan
(Nephelium lappaceum L.) Kernel Fat for Production of Non-Hydrogenated Solid Fat:
Influence of Time and Solvent Type,” Journal of King Saud University-Sciences, 29, 1,
-46.
Michael, A., Fausat, A. and Doyinsola, T. (2014). “Extraction and Physicochemical Analysis
of Some Selected Seed Oils,” International Journal of Advanced Chemistry, 2, 2, 70-73.
Moh, M. H., Cheman, Y. B., Badlishah, B. S., Jinap, S., Saad, M. S. and Abdullah, W. J. W. (1999). “Quantitative Analysis of Palm Carotene using Fourier Transform Infrared and
Near Infrared Spectroscopy,” Journal of the American Oil Chemists' Society, 76, 249-254.
MPOB Test Method. 2004. Methods of Test for Palm Oil and Palm Oil Products, Malaysia:
Malaysian Palm Oil Board.
Nassu, R. T. and Goncalves, L. A. G. (1999). “Determination of Melting Point of Vegetable
Oils and Fats by Differential Scanning Calorimetry (DSC) Technique,” Grasas y Aceites,
, 1, 16-22.
Noor Akhmazillah, M. F. and Mohamad Roji, S. (2011). “Extraction of Heat Treated Palm Oil
and Their Stability on β-carotene during Storage,” Journal of Science and Technology, 45-
Santos, M. F. G., Alves, R. E. and Roca, M. (2015). “Carotenoid Composition in Oils obtained
from Palm Fruits from the Brazilian Amazon,” Grasas y Aceites, 66, 3.
Shabnam, M., Ola, L., Kharidah, M. and Badlishah, B. (2015). “Variability in the Fermentation
Index, Polyphenols and Amino Acids of Rambutan (Nephelium lappaceum L.) during
Fermentation,” Journal of Food Composition and Analysis, 37, 128-135.
Sirisompong, W., Wannee, J. and Klinkesorn, U. (2011). “Solvent Extraction of Rambutan
(Nephelium lappaceum L.) Kernel Fat for Production of Non-Hydrogenated Solid Fat:
Influence Time and Solvent Type),” LWT-Food Science and Technology, 44, 1946-1951.
Vaisala. (2009). “Oil Moisture Expressed as Water Activity (Aw),” Application Note.
Yanty, N.A.M, Jalaldeen, M. N. M., Kamariah, L. and Hasanah, M. G. (2013). “PhysicoChemical Characterisation of the Fat from Red Skin Rambutan (Nephelium lappaceum L.)
Seed,” Journal of Oleo Science, 62, 6, 335-343.
Yoswathana, N. (2013). “Optimization of ScCO2 Extraction of Rambutan Seed Oil using
Response Surface Methodology,” International Journal of Chemical Engineering and
Applications, 4, 4, 187-190.
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