What compound causes the shared sweet, licorice-like flavor in anise seed and star anise?
Answer
Anethole
The signature, sweet, licorice-like flavor common to both anise seed (*Pimpinella anisum*) and star anise (*Illicium verum*) is primarily attributed to the chemical compound known as anethole. This same active ingredient, anethole, is also linked to several physiological effects, including its ability to support digestion via relaxing smooth muscles in the gastrointestinal tract and its role as a phytoestrogen that mimics the action of estrogen in the body. While other compounds like shikimic acid (specific to star anise) and quercetin (a major antioxidant in star anise) are present and contribute to other benefits, anethole is specifically identified as the source of their shared aromatic and flavor profile.

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