Co-oxidation of β-carotene in biphasic media

Stability of carotenoid extracts of gấc (Momordica cochinchinensis) towards cooxidation — Protective effect of lycopene on β-carotene

“…These differences reflect certainly a difference in accessibility of xanthine oxidase-generated free radicals to β-carotene. Without PLA, only the extremity of the β-carotene molecule is accessible whereas, in the case of PLA encapsulation, although the cleavage bond in C7-8 remains major, the favoured cleavage bond determined from molecular modeling calculation in vacuum and from experimental results increases (Bosser & Belin, 1994;Ly, Cao-Hoang, Belin, & Waché, 2008;Waché, Bosser De Ratuld, Ly, & Belin, 2002;Waché, Bosser-DeRatuld, & Belin, 2006;Waché, Bosser-DeRatuld, Lhuguenot, & Belin, 2003).…”

Antioxidant activity of carotenoids against the oxidative destabilization of sunflower oil-in-water emulsions

“…In fact, bcarotene's bleaching was observed when it was solubilized in the aqueous phase with Tween 80 suggesting its reaction with free radicals (Waché, Bosser-DeRatuld, Ly, & Belin, 2002). The high rate of degradation of polar carotenoids (norbixin, bixin, lutein) was also associated with their antioxidant activity in azo-initiated sunflower o/w emulsions .…”

Carotenóides: propriedades, aplicações e biotransformação para formação de compostos de aroma

“…Na presença de solventes, a degradação de β-caroteno ocorreu em hexano ou em benzeno. Solventes mais polares como diclorometano ou benzeno inibiram a atividade enzimática 21 . A β-damascenona pode ser formada pela hidrólise de metabólitos secundários complexos derivados de carotenóides, como a neoxantina.…”