wine colour

This is a great article on wine colour. It contains a very comprehensive overview of factors of influence and previous research.

<a href="https://docs.google.com/viewer?a=v&q=cache:rn2Twed8ClwJ:www.napavalley.edu/people/gvierra/Documents/Fundamentals_of_Enology_Class/Copigmentation_Boulton.pdf+Fundamentals_of_Enology_Class/Copigmentation_Boulton.pdf&hl=nl&gl=nl&pid=bl&srcid=ADGEESi-H0QJOrAHKcgFBkh04_rZc5IqtoKEleE0N7WyQkginQnBaBQ8CZZyOj0fuzYUFEaonCewszByEChMgyRW4u-RnsuhVznBk5v14S9UqRC6hfk0V-lH-4NI_i0bIlSjornKbuh8&sig=AHIEtbQn5FN5nkSwSUGvrZ33e9Yx-R6vEg