Pengaruh Proses Degumming dan Netralisasi Terhadap Sifat Fisiko Kimia dan Profil Asam Lemak Penyusun Minyak Biji Gambas (Luffa acutangula Linn.)

Abstract

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

Effects of Refining on the Characteristics of Suri Cucumber (Cucumis melo L. var. reticulatus Naudin) Seed Oil

“…The decrease of acid value was due to the addition of sodium hydroxide at the neutralization stage as soap. The free fatty acids was bound to sodium hydroxide and removed after saponification [1]. Similarly, the peroxide value was also decrease after refining process.…”

“…After the refining process, the cucumber seed oil peroxide value decreased. This is because free fatty acids and peroxide compounds react with sodium hydroxide at the neutralization stage [1]. The reaction can be seen in Figure 3.…”

“…Vegetable oil is an material that has a wide range of uses in the food industry, such as flavorings, frying and cooking. Also in the cosmetics industry, vegetable oil can be used as a raw material for making soap [1]. Vegetable oil obtained from extraction of certain plants is called Crude Oil.…”

Synthesis of Methyl Ester Nitrate from Mahogany Seed Oil (Swietenia mahagoni Linn)

“…Synthesis of ethyl esters is carried out through pressing, degumming, esterification, and transesterification step. Degumming is a process of separating mucus or sap in oil and reducing free fatty acids in oil (Meilano, Soetjipto, & Cahyanti, 2017). The esterification reaction is a reaction between carboxylic acids and alcohols to form esters (Aziz, Nurbayti, & Ulum, 2012).…”

Profil Fisiko-Kimia Minyak Kulit Batang Pulosari (Alyxia reinwardtii Bl.) dan Aktivitas Antioksidannya

“…Franciska Alvina Desi Setiawan, dkk., Akta Kimia Indonesia 8(1), 2023,[12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] …”