NAYELY LEYVA-LÓPEZA, BENIGNO VALDEZ-TORRESA, FRANCISCO DELGADO-VARGASB, RAYMUNDO S. GARCÍA-ESTRADA, and J. BASILIO HEREDIAA, “Optimized enzyme-aided extraction enhances recovery of carotenoids from tomato peel and improves the biological activity”, ijpbs, vol. 8, no. 1, pp. 721–727, Mar. 2017.