Consumption of fuel oil is increasing, but it is not accompanied by supply. Transportation sector is spent the most existing fuel. Therefore, it is crucial to look for alternative type of fuel such as biodiesel to overcome the fuel shortage. The purpose of this study is to investigate the feasibility on how the investment of waste cooking oil as the biodiesel material production. This study con...

A study was done to investigate effect of volume ratio water and used cooking oil the characteristic Taylor-Couette flow in terms shear stress energy loss distribution within column. The characterisation carried out by applying waste at 1:1, 1:3, 1:5, 1:6. inner cylinder rotated 300 rpm while outer kept static. It found that optimal for wastewater treatment shown phenomenon Modulated Wavy Vorti...

This study focuses on the development of a novel two-stage (esterification–transesterification) synthesis biodiesel from used cooking oil (UCO) using ion exchange resins as catalysts. Esterification UCO has been conducted various types resin Purolite D5081, hyper cross-linked resin, showed best catalytic performance among all catalysts investigated, with 92% free fatty acid (FFA) conversion. Th...

The changes in lipid and fatty acid contents after soaking, cooking, germination and fermentation of three white sorghum varieties were studied to improve cereal quality. The results revealed that oil in raw sorghum varieties ranged from 3.58 to 3.91%, respectively and ‘Dorado’ represents the highest variety in oil content. As general trend after germination, oil content was decreased. Fatty ac...

Cooking oil, a food ingredient used for cooking, has increased in price Indonesia. Based on the Indonesian Strategic Food Price Center data, cooking oil reached twice regular at beginning of 2022. Long Short-Term Memory and Gated Recurrent Units are several ways to predict time domain data. The data set prediction is last three years taken pre-processed by changing type filling blank day with p...