Kombinasi proses perebusan dan pengeringan bahan baku pada ekstraksi minyak alpukat menggunakan screw press

Abstract

The screw press is a tool used to separate the oil from the flesh by pushing and pressing the raw material so that extraction occurs. This study aims to study the performance of the combined process of boiling and drying of avocado flesh as raw materials in avocado oil extraction using a screw press. The boiling aims to remove components that hinder the extraction process and plant cell membrane degradation. Meanwhile, the drying aims to remove part of the water from a material by evaporating the water using heat energy. The research variables used were boiling method of the raw materials (using water, CaCO3, and control) and drying method of the raw materials (using microwave, oven, and sun drying). The combination of boiling and drying of raw materials that produces the highest yield of avocado oil is boiling with water and microwave drying (48.98% w/w). Meanwhile, the lowest yield was produced in the control treatment (without boiling) with sun drying (37.92% w/w). The results of the FTIR analysis show that the main component in avocado oil is triglycerides. The characteristics of oil extracted are similar with the commercial avocado oil. avocado oil; drying; boiling; screw press