Patent ID: 8562975

Claim:
A reduced coenzyme Q 10 -containing composition which comprises reduced coenzyme Q 10 , a polyglycerol fatty acid ester, wherein the degree of polymerization of glycerol in said polyglycerol fatty acid ester is 2 to 10, and at least one member selected from the group consisting of a fat component, an oil component and a polyol, wherein a content of the at least one member selected from the group consisting of a fat component, an oil component and a polyol is not lower than 50% by weight based on total weight of the composition minus a weight of coenzyme Q 10 ; a content of the polyglycerol fatty acid ester is not lower than 1% by weight and not higher than 40% by weight based on total weight of the composition minus a weight of coenzyme Q 10 ; a content of Tween and/or Span species, when the same is further contained in the composition, is not higher than 30% by weight based on total weight of the composition minus a weight of coenzyme Q 10 ; and wherein the fat component or oil component is at least one member selected from the group consisting of coconut oil, palm oil, palm kernel oil, linseed oil, camellia oil, brown rice germ oil, avocado oil, rapeseed oil, rice oil, peanut oil, corn oil, wheat germ oil, soybean oil, perilla oil, cottonseed oil, sunflower seed oil, kapok oil, evening primrose oil, shea butter, sal fat, cacao butter, sesame oil, safflower oil, olive oil, lard, milk fat, fish oil, beef tallow, modified fat component, modified oil component, medium-chain fatty acid triglycerides, fatty acid partial glycerides, and phospholipids, wherein the modified fat component or modified oil component is derived from at least one member selected from the group consisting of coconut oil, palm oil, palm kernel oil, linseed oil, camellia oil, brown rice germ oil, avocado oil, rapeseed oil, rice oil, peanut oil, corn oil, wheat germ oil, soybean oil, perilla oil, cottonseed oil, sunflower seed oil, kapok oil, evening primrose oil, shea butter, sal fat, cacao butter, sesame oil, safflower oil, olive oil, lard, milk fat, fish oil, and beef tallow by a process selected from the group consisting of fractionation, hydrogenation and transesterification; and wherein a percent retention of reduced coenzyme Q 10 after 3 days storage in the air at 40° C. under a light-shielded condition is not lower than 70%, with the percent retention in the corresponding composition composed of reduced coenzyme Q 10 , and at least one member selected from the group consisting of the fat component, the oil component and the polyol alone after storage under the same conditions being taken as 100%.