Abstract: The invention provides a method for the purifying of low-quality glyceridic material usually unfit for use as feed or food. The method includes a thermal treatment of the low-quality glyceridic material and chemical treatments. The purified oils and fat are suitable feed-stock or suitable components thereof for a hydrogenation processes yielding to high quality renewable diesel. The process thus permits the recycling of waste material that is usually discarded, into a valuable high-quality fuel.

Abstract: A vegetable oil physical refining process able to mitigate the occurrence of glycidyl esters (GE) including at least a deodorization step followed by a stripping step, wherein, the deodorization step includes contacting said vegetable oil with steam at a pressure above 5 mbara, during at least 10 minutes at a temperature of at least 230° C., and wherein the stripping step includes stripping the oil resulting from the deodorization step at a pressure below 5 mbara and at a temperature not exceeding 280° C. The process does not compromise the heat bleaching and the full removal of unwanted colours, taste and smell from the physically refined edible oil.

Abstract: A vegetable oil physical refining process able to mitigate the occurrence of glycidyl esters (GE) including at least a deodorization step followed by a stripping step, wherein, the deodorization step includes contacting said vegetable oil with steam at a pressure above 5 mbara, during at least 10 minutes at a temperature of at least 230° C., and wherein the stripping step includes stripping the oil resulting from the deodorization step at a pressure below 5 mbara and at a temperature not exceeding 280° C. The process does not compromise the heat bleaching and the full removal of unwanted colours, taste and smell from the physically refined edible oil.

Abstract: The invention relates to the utilization of fatty materials with substantial free fatty acid content in the production of biodiesel by the use of microbial enzymes that are effective in a solvent-free process for the production of esters of fatty acids and C1-C3 alkyl alcohols.