Table 3.

Concentration of total and individual anthocyanins (listed in order of HPLC elution), and total tannin results from control-shaded clusters (naturally shaded, n = 3) and light-excluded clusters (light exclusion boxed, n = 3). Anthocyanins expressed in malvidin-glucoside equivalents (mg/100 g of berries). Tannins expressed in epicatechin equivalents (mg/100 g of berries). The significant difference (p ≤ 0.05) within the pair of samples was indicated as * for concentration (mg of/100 g of berries) and ** for proportion of the total. Values in italicized font are the proportion of the total anthocyanins. Values in parenthesis are standard deviations.

	Control − naturally shaded clusters		Light exclusion boxed clusters
Total anthocyanin	162.0 (12.0)	100	98.1 (42.2)	100
Delphinidin-glucoside *	12.0 (1.9)	7.4 (1.3)	4.2 (3.0)	3.8 (1.9)
Cyanidin-glucoside *, **	2.5 (0.5)	1.5 (0.3)	0.9 (0.6)	0.8 (0.3)
Petunidin-glucoside *	11.0 (1.4)	6.8 (0.8)	4.6 (3.1)	4.2 (1.9)
Peonidin-glucoside	10.8 (1.8)	6.7 (0.8)	6.4 (2.5)	6.6 (0.4)
Malvidin-glucoside	67.7 (8.2)	41.7 (1.9)	49.4 (19.4)	40.2 (3.3)
Delphinidin-acetyl-glucoside *	2.8 (0.3)	1.8 (0.3)	1.22 (0.9)	1.1 (0.6)
Cyanidin-acetyl-glucoside *	0.6 (0.1)	0.4 (0.1)	0.3 (0.2)	0.3 (0.1)
Petunidin-acetyl-glucoside	3.0 (0.2)	1.9 (0.2)	1.4 (1.0)	1.3 (0.7)
Peonidin-acetyl-glucoside	4.1 (0.3)	2.5 (0.1)	3.0 (1.1)	3.2 (0.4)
Malvidin-acetyl-glucoside **	24.9 (3.0)	15.4 (1.8)	18.7 (7.7)	19.2 (0.6)
Malvidin-caffeoyl-glucoside *	0.2 (0)	0.1 (0)	0.1 (0)	0.1 (0)
Cyanidin-coumaroyl-glucoside *	0.8 (0.1)	0.5 (0.1)	0.3 (0.2)	0.3 (0.1)
Petunidin-coumaroyl-glucoside *	1.7 (0.1)	1.0 (0.1)	0.9 (0.4)	0.9 (0.1)
Peonidin-coumaroyl-glucoside *	4.5 (0.4)	2.8 (0.4)	3.1 (0.6)	3.5 (1.4)
Malvidin-coumaroyl-glucoside	15.2 (1.7)	9.4 (1.1)	12.6 (1.6)	14.6 (6.2)
Total tannins	732 (28)		902 (255)