Abstract: A method of producing biodiesel using a conduit contactor in fluid communication with a collection vessel includes: introducing a first stream including an alcohol proximate a plurality of fibers positioned within the conduit contactor and extending proximate to the collection vessel; introducing a second stream including an oil into the conduit contactor proximate to the plurality of fibers, wherein the second stream is in contact with the first stream; reacting the oil and the alcohol to for a single phase; receiving the single phase in the collection vessel; and separating biodiesel from the single phase.

Abstract: A method of producing biodiesel using a conduit contactor in fluid communication with a collection vessel includes: introducing a first stream including an alcohol proximate a plurality of fibers positioned within the conduit contactor and extending proximate to the collection vessel; introducing a second stream including an oil into the conduit contactor proximate to the plurality of fibers, wherein the second stream is in contact with the first stream; reacting the oil and the alcohol to for a single phase; receiving the single phase in the collection vessel; and separating biodiesel from the single phase.

Abstract: A method for producing a carotenoid enriched fatty acid composition includes: reacting an oil including free fatty acids and carotenoids with a basic solution; withdrawing, separately from the oil, an extraction solution including at least a portion of the free fatty acids, at least a portion of the carotenoids, and the basic solution; acidifying the extraction solution to produce an aqueous phase and a fatty acid phase, the fatty acid phase including the free fatty acids and the carotenoids of the extraction solution; and separating the fatty acid phase from the aqueous phase.