Stabilitas Fisik dan Kimia Minyak Biji Ketapang (Terminalia catappa L.) Selama Penyimpanan

Abstract

Ketapang (Terminalia catappa L.) is each one potentialy to producting of nabati oil. The research is purposes to determine effect of storage period on room and extreme temperature of ketapang seeds oil’s physical and chemical stability. Ketapang seeds oil was getted from ketapang seeds extraction by n-hexana with soxhletasi method. Ketapang seeds oil stability evaluation on room temperature 27 â€“ 30 °C as long as 50 days and extreme temperature 65 Â°C as long as 10 days. Physical stability that color, aroma, and flavor use organolepticly, pH use pH-meter, density use piknometer, and viscosity use Oswald viscometer. Chemical stability that acid value, peroxide value, and soap value by titration method, and amount of tocopherol compound by spectrometry method. The result data was analyzed with linier regretion. The analyzed result of aroma, flavor, pH, density, soap value, and tocopherol compound showed descend linier, viscosity, acid value, and peroxide value showed ascend linier, and color of ketapang seeds oil is stabil as long as storage on room and extreme temperature. Storage period on extreme temperature more significant than room temperature to effect evaluation result of ketapang seeds oil’s physical and chemical parameters.