Abstract: A technique for efficiently performing pulverization of a dried aloe gel using an air flow type mill is provided. 1) A dried aloe gel is treated by supercritical extraction, an extract is removed from the dried aloe gel to obtain an extraction residue, and then 2) the extraction residue is pulverized with an air flow type mill to produce an aloe powder.
Abstract: To provide an antioxidant which is highly safe, inhibits oxidation of a biological component, in particular, a lipid, and is used as a drug, food or drink, a food additive, an external preparation for skin, or the like. The antioxidant contains 3-O-?-D-glucopyranosyl-4-methylergost-7-en-3-ol as an active ingredient.