Assertion: carotenoid | /r/HasProperty | well-known antioxidant agents
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Source sentences:
text: Carotenoids, including fucoxanthin, are well-known antioxidant agents due to their singlet oxygen quenching potential, attributed to their conjugated systems (Fung et al., 2013; D’Orazio et al., 2012; Yan et al., 1999).