Torulopsis utilis, also known as Cyberlindnera jadinii, is a species of yeast. In its inactive form (usually labeled as torula yeast), it is widely used as a flavoring agent in processed foods and pet foods. Torulopsis utilis is often grown on wood liquor, a byproduct of paper production that is rich in wood sugars (xylose). After being pasteurized and spray-dried, it produces a fine, light grayish-brown powder with a slightly yeasty odor and a gentle, slightly meaty taste. This yeast can also be used, in combination with other yeasts, as a secondary cheese starter culture to improve cheese flavor and mimic the natural yeast flora found in raw milk. Similar to monosodium glutamate (MSG), torula yeast is rich in glutamic acid, making it a popular replacement for MSG or a way to market “all-natural” ingredients. Additionally, torula finds accepted use in Europe and California for the organic control of olive flies, where it serves as a food attractant in traps to reduce crop damage