Characterization and Glyceride Composition Approximation Analysis of Oil from Nypa Fruticans (Nipa) Nuts
[1]
Camilo A. Tabinas, Palompon Institute of Technology, Palompon, Leyte.
Nipa oil is unknown to chemistry handbooks. Due to lack of study on nipa nut oil, it became the subject of this study. The study aimed to characterize and approximate the glyceride composition of the oil extracted from matured nipa nuts. Nipa oil was extracted using soxhlet apparatus. The physical and chemical characteristics of nipa oil as to melting points, refractive index, saponification value and iodine value were determined. Comparative analysis of the characteristics of nipa oil with the physical and chemical constants of coconut oil, cottonseed oil, olive oil, and soya oil was done. Discrepancies were observed between the theoretical and experimental results. These were resolved on the basis of the established relationships between the oils characteristics with their glyceride structural composition. Nipa oil was found to have specific gravity of 0.9153, refractive index of 1.4730, melting point of 23.70, saponification value of 195.22, and iodine value of 88.94. Glyceride composition and structure of nipa oil were theoretically approximated to be composed of a combination of saturated fatty acids and conjugated, unsaturated fatty acids, but its chain of unsaturation is not high enough to be classified as drying or semidrying oil. It follows that nipa oil has relatively higher proportions of saturated to unsaturated fatty acid contents.
Fats and Oils, Fatty Acids, Kernel Oil, Iodine Number, Soxhlet Extraction, Conjugated Linoleic Acid (CLA)
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