Optimization of the conditions for producing water-in-oil-in-water microemulsions and spray-dried microcapsule of tomato extract powder
Tomato is traditionally recognized as the plentiful source of lycopene (Edwards et al., 2003). Lycopene is a polyunsaturated (polyene) straight-chain molecule, which contained 13 double bonds with a molecular weight of 536.9 daltons. Ot has strong antioxidant and other beneficial effects, including free radical scavenging (Hernandez-Marin et al., 2013). Antioxidant effects of lycopene might include scavenging free radicals from reactive oxygen species (RDS) because lycopene is very effective to remove singlet oxygen in in vitro and in plasma (Zhang et al., 2014). However, lycopene in tomato is hardly to obtain since tomato extract has poor water solubility and is easily oxidized by light or heat exposure. To combat those issues, microencapsulation can be a good approach and it could be a good solution to be utilized tomato extracts into food system.