An object of the present invention is to provide a composition which has a function of imparting stability to natural colorants and flavoring compounds and in which the occurrence of degradation smell is suppressed. The present invention provides a Helianthus seed extract having a feature (A) as follows: (A) a content of 1-octen-3-one of an acid-sugar solution when stored under white fluorescent light of 10,000 lux at 30°C for 7 days is 0.1 ppb or less, wherein the acid-sugar solution contains the Helianthus seed extract in an amount of 0.0075 mass% in terms of a solid content and is adjusted to have 10° Brix by high fructose corn syrup and to have a pH being 3.0.
