Phenolic composition of vine leaves infusions produced from different Portuguese and Spanish Vitis vinifera L. varieties

Open Access

Table 1.

Vine leaves infusions chromatic characteristics using the CIELAB method.

Vine leaves	Chromatic coordinates
infusions	L^∗	a^∗	b^∗
Pardina	92.93 ± 0.02^b	0.97 ± 0.01^e	19.17 ± 0.11ⁱ
Cayetana	96.44 ± 0.08^cd	− 0.07 ± 0.02^c	10.94 ± 0.03^f
Garnacha	96.02 ± 0.04^cd	0.44 ± 0.03^d	7.83 ± 0.09^cd
Cigüente	92.13 ± 1.80^b	0.11 ± 0.36^cd	15.42 ± 0.41^g
Eva	94.12 ± 0.02^b	1.86 ± 0.03^f	16.23 ± 0.15^h
Tempranillo	98.10 ± 0.19^d	− 0.56 ± 0.08^b	4.94 ± 0.07^a
Macabeo	95.55 ± 0.40^c	− 0.01 ± 0.10^cd	9.33 ± 0.03^e
Verdelho	88.94 ± 0.81^a	1.18 ± 0.28^e	21.02 ± 0.28^f
Fernão Pires	96.59 ± 0.09^cd	− 0.46 ± 0.04^b	6.59 ± 0.03^b
Touriga Franca	95.38 ± 0.01^c	1.25 ± 0.03^e	11.50 ± 0.12^f
Tinta Roriz	94.19 ± 0.02^b	− 0.60 ± 0.01^b	11.55 ± 0.21^f
Encruzado	90.09 ± 0.41^a	1.39 ± 0.06^ef	21.32 ± 0.03^j
Touriga	97.42 ± 0.07^cd	− 0.83 ± 0.04^b	6.95 ± 0.14^b
Nacional
Rufete	97.00 ± 0.06^cd	− 1.39 ± 0.01^a	7.62 ± 0.02^c
Baga	96.13 ± 0.14^cd	0.04 ± 0.01^cd	8.31 ± 0.08^d
Síria	96.80 ± 0.02^cd	− 0.96 ± 0.03^a	8.38 ± 0.04^d

L^∗ (lightness); a^∗ (redness); b^∗ (yellowness) Data points derived for each chromatic coordinate showing the same letter are not significantly different (p < 0.05).

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