Antioxidant activity and vitamin C content of different formulations of tomato (Solanum lycopersicum), adlay seed (Coix lacryma-jobi L.) and carrageenan (Eucheuma cottonii) jelly drink

Tomato and adlay seeds have good potential for antioxidants, such as lycopene, β- carotene, phenolic and flavonoid. Carrageenan was added to the jelly drink product as a thickener and texture enhancer. In addition, carrageenan was able to maintain the antioxidant and vitamin C content of the product. However, the proportion of tomato and adlay seed with different carrageenan concentrations may affect the final product’s nutritional composition, antioxidant activity, vitamin C content and...