Stenocereus griseus (Haw) pitaya as source of natural colourant: technological stability of colour and individual betalains

Summary Stenocereus griseus pitaya has been evaluated as potential natural colourant on the basis of tristimulus colorimetry, differential colorimetry, and individual betalains, not previously conducted in conjunction with this raw material. Different technological treatment conditions were reproduced based on different pH s, temperatures and storage time. According to the results, cold temperatures (4 °C) maintained for longer the initial...