3d image of beta-carotene skeletal formula

beta-carotene e160a carotene food additive adjuvants ingredient agent ins number pigment terpenoids isoprenoids carotenes provitamin food orange geranylgeranyl pyrophosphate herbal phytochemical phytotherapy plant herb natural herbalism pharmacognosy pharmacopoeia supplement biological activity nutrient prescription drug nutraceutica dietary vitamin antioxidant anti-cancer anti-aging healthy aging alternative medicine herbal carotenosis carotenoderma hypervitaminosis cancer drying thermal degradation cataract 3d