who showed that the stability of the Davidson’s plum (Davidsonia
pruriens, F. Muell.), extract towards heat treatment at 95 ◦C
was higher than that of commercial mulberry colorant, but inferior
to colorants derived from red cabbage and purple sweet potato.
An addition of a variety of phenolic acids significantly increased
color intensity indicating the formation of copigmentation complexes.
Commercial chlorogenic acid as well as extract from a native
Australian herb rich in chlorogenic acid, Tasmania pepper leaf (Tasmannia
lanceolata, R. Br.), was both tested in model soft drink
solutions subjected to light irradiation and heat treatment