Rice Bran Oil Extraction as Trioxolane Raw Material

Abstract

Rice bran is a byproduct of rice processing which was generally used for animal feed. Rice bran oil could be used as raw material in the fields of pharmaceuticals, cosmetics, and food oil. The purpose of this research is to extract rice bran into oil as a raw material for Trioxolane using n-Hexane solvent and purify the oil by adsorption using bentonite. Trioxolent compounds were obtained from ozonated fatty acids. Variable extraction time 2, 3 and 4 hours and use of bentonite 2.5, 5 and 7.5 grams from 10 ml of crude rice bran oil. The results obtained an oil yield of each variable extraction time 2, 3, and 4 hours respectively - the value is 8.4, 10, 11%. The optimum operating conditions were obtained by extraction time of 4 hours and refining 75% bentonite. The characteristics of rice bran oil has a moisture content of 8%, an acidic value of 67% mg NaOH/g sample, a peroxide number of 21 mgrek/g sample, an iod number of 46 mgI2 / g sample and the results of fatty acid analysis using GCMS is 33.5 % oleic acid, 24.8% Linoleic acid, 32.6% Palmitic acid.

Pembuatan Sabun Transparan Berbasis Virgin Coconut Oil Dengan Penambahan Aditif Minyak Sereh

“…Namun, minyak hasil ekstraksi masih memiliki bilangan asam yang tinggi. Tingginya asam lemak bebas disebabkan oleh adanya reaksi hidrolisis pada minyak ataupun karena proses pengolahan yang kurang baik [18]. Proses hidrolisis tersebut menyebabkan terurainya lemak atau trigliserida oleh molekul air yang menghasilkan asam lemak bebas dan gliserol [18].…”

“…Tingginya asam lemak bebas disebabkan oleh adanya reaksi hidrolisis pada minyak ataupun karena proses pengolahan yang kurang baik [18]. Proses hidrolisis tersebut menyebabkan terurainya lemak atau trigliserida oleh molekul air yang menghasilkan asam lemak bebas dan gliserol [18]. Molekul air tersebut kemungkinan berasal dari pelarut yang digunakan, dimana pelarut yang digunakan untuk mengekstraksi minyak dedak padi kemurniannya di bawah 90%.…”

“…Molekul air tersebut kemungkinan berasal dari pelarut yang digunakan, dimana pelarut yang digunakan untuk mengekstraksi minyak dedak padi kemurniannya di bawah 90%. Asam lemak bebas terbentuk karena proses oksidasi dan hidrolisa enzim selama proses pengolahan dan penyimpanan [18]. Pada bilangan peroksida, besarnya bilangan peroksida pada minyak hasil ekstraksi dikarenakan adanya kemungkinan minyak sudah mengalami oksidasi.…”

Rice Bran Oil: Applications Food Products, Characteristics Physicochemical, Extractions, and Purifications (A Review)

“…Rice bran contains protein (13.11-17.19%), Fat (2.52-5.05%), Carbohydrate (375,91-387,2 calories). Rice bran not only have main component, but also contains phenolic, vitamins, and minerals [1].…”

“…The process of extraction rice bran, such as stabilization and solid-liquid extraction. The aims of extraction and stabilization to destroy lipase enzyme using heat and chemical to produced and increased yield of rice bran oil [1]. The physical characteristics of the rice bran oil are bright color, medium taste, long-shelf life, and high smoke point.…”