Rice screenings as effective ingredients in beauty products

Abstract

Secondary rice products represent a source of effective ingredients for the cosmetics industry. Environmentally friendly and biodegradable products are among the promising trends of the present time. They do not pollute the environment and create a closed cycle in raw material production. Rice screenings and germs are a source of valuable bioactive substances. The products are currently being recycled, due to the lack of economically viable technology for recycling secondary rice products. The paper presents the technology for the processing of secondary rice products by solvent extraction with hexane and carbon dioxide. The extraction was carried out on a laboratory unit, after which the component composition of the extracts was determined by thin-layer chromatography. The main components of CO2 extract are phospholipids, sterols, fatty acids, triacylglycerols, tocopherols, carotenoids, and waxes. Processing of the extraction oil and CO2 extract will make it possible to isolate the waxes. Rice waxes are currently the quality plant-based analogue of synthetic texturizers. A plant-based wax that can be effectively used in both decorative and skincare formulations, as it has a range of skin-soothing substances and can absorb UV-A and UV-B rays. Rice screenings could become an alternative to silica in alginate wrap preparations of the SPA industry. Rice recycling technology will produce valuable raw materials for cosmetic products: vegetable waxes, rice bran oil, and rice flour. These products are effective raw components for the cosmetics industry and their use will reduce the cost of the finished cosmetic product and expand the base of domestic raw materials.