Rubixanthin benefit and review

Rubixanthin is found in a number of flowers, herbs and fruits.

Analysis of carotenoid composition in petals of calendula Calendula officinalis.
Biosci Biotechnol Biochem. 2005; National Institute of Floricultural Science, Ibaraki, Japan.
Nineteen carotenoids were identified in extracts of petals of orange- and yellow-flowered cultivars of Calendula officinalis. Ten carotenoids were unique to orange-flowered cultivars. The UV-vis absorption maxima of these ten carotenoids were at longer wavelengths than that of flavoxanthin, the main carotenoid of calendula petals, and it is clear that these carotenoids are responsible for the orange color of the petals. Lycopene, gamma-carotene, and rubixanthin has never before been identified.

Carotenoid pigments in Rosa mosqueta hips, an alternative carotenoid source for foods.
J Agric Food Chem. 2000. Departamento de Biotecnología de Alimentos, Instituto de la Grasa Sevilla, Spain.
Carotenoid composition has been investigated in Rosa mosqueta hips (Rosa rubiginosa, Rosa eglanteria). Six major carotenoids were identified beta-carotene, lycopene, rubixanthin, gazaniaxanthin, beta-cryptoxanthin, and zeaxanthin.

Carotenoids from guava Psidium guajava: isolation and structure elucidation.
J Agric Food Chem. 1999. Departamento de Ciência de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas, Campinas, Brazil.
Sixteen carotenoids were isolated from the flesh of Brazilian red guavas (Psidium guajava). The carotenoids were identified as phytofluene, beta-carotene, gamma-carotene, lycopene, beta-cryptoxanthin, rubixanthin, (cryptoflavin, lutein, neochrome. Thirteen of the carotenoids identified are reported as guava carotenoids for the first time.