POTENTIAL OF RADISH OIL: EXTRACTION AND PRODUCTION OF ESTERS

Abstract

The application of non-edible raw materials for biodiesel production constitutesan alternative to cost reduction due to lower costswhen compared to edible oilseeds, and possible food depletion. For this reason, the production of biodiesel from radish (Raphanus sativusL.) seed oil has become aninterestingoption. Oil extraction and ester production are technologies that requireimprovement to ensurethe viability of biodiesel production, enablingthereduction of energy inputs and expensesin the production chain. Therefore, the objective of the present studywas to review the potential of radish oil for biodiesel production and process intensification technologies, which simultaneously increase productivity and minimize operating costs. To thatend, a bibliographic search of scientific articles was conducted, in which the followingfourcategorieswere established: vegetable oils for biodiesel production, oil from radish seeds, technologies for the extraction of vegetable oils,and technologies for the production of biodiesel. Radish seed oil presents favorable characteristics for application in biodiesel synthesis, such as high oil content and adequate fatty acid composition. Suitable adjustmentsof operational variables, ultrasound-assisted extraction (UAE),and pressurized liquidextraction(PLE) can provide high oil yields. Transesterification showed to bean efficient method for obtaining biodiesel with properties comparable to diesel. This techniquecan become more viable withmodifications in situ, reducingsteps in the process.

Keywords

• biodiesel
• non-edible oils
• radish