Abstrak: Penelitian mengenai minyak biji gambas umumnya menggunakan minyak kasar, pemurnian terhadap minyak biji gambas masih belum dilakukan. Tujuan dari penelitian ini adalah untuk menentukan efek proses degumming dan netralisasi terhadap sifat fisiko kimia dan kandungan minyak biji gambas (Luffa acutangula Linn.). Metode yang digunakan dalam memperoleh minyak biji gambas yaitu maserasi dengan pelarut heksana. Sifat fisiko-kimia minyak biji gambas sebelum dan sesudah pemurnian ditentukan berdasarkan SNI 01-3555-1998. Sesudah pemurnian minyak biji gambas mengalami perubahan warna, massa jenis, kadar air, bilangan asam, bilangan peroksida, dan bilangan penyabunan. Analisa profil asam lemak dilakukan dengan instrumen GC-MS. Adanya pemurnian tidak berpengaruh terhadap komponen utama asam lemak penyusun minyak biji gambas.
Kata kunci: degumming, GC-MS, minyak biji gambas, netralisasi, sifat fisiko kimia
Abstract: Research on ridge gourd seed oil generally uses crude oil, purification of ridge gourd seed oil is still not done. The purposes of this research were to determine the effect of degumming and neutralization process on the physicochemical properties and fatty acid profiles of ridge gourd seed oil (Luffa acutangula Linn.).The ridge gourd seed oil was obtained by using hexane maceration method, whereas physicochemical properties of the pre and post purification oil were determined based on SNI 01-3555-1998
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