Table 1 otal flavonoid contents of peel extracts (A) and pulp extracts (B) from five orange cultivars harvested at different maturation stages (unit: mg QE/g dry weight)1)
(A)

Cultivar	September	October	November	December	January	February
Tarocco blood	18.46±2.3^c2)	12.86±0.6^d	15.08±3.6^d	11.55±4.7^a	9.68±0.7^c	9.17±0.4^d
Sanguinello blood	20.39±1.4^b	13.29±2.4^cd	11.87±1.9^cd	9.06±0.8^b	10.19±4.2^b	9.40±2.0^d
Hamlin	21.66±2.2^a	20.52±4.7^a	14.17±2.4^a	11.40±2.0^a	10.90±0.6^a	11.03±3.0^b
Shamouti	18.49±0.1^c	13.52±1.6^c	11.59±5.9^c	11.41±5.5^a	9.28±1.1^d	11.39±0.6^a
Olinda valencia	17.07±3.7^d	16.04±1.8^b	12.81±0.4^b	11.50±0.8^a	10.11±1.7^b	10.55±0.3^c
(B)
Cultivar	September	October	November	December	January	February
Tarocco blood	8.5±1.5^e	7.62±1.2^c	7.04±1.1^c	7.09±1.0^d	6.72±0.4^d	6.95±0.7^d
Sanguinello blood	9.25±0.7^c	8.27±0.6^b	7.45±0.3^b	7.50±0.9^c	6.73±0.3^d	7.82±0.4^b
Hamlin	10.14±0.2^a	9.14±1.7^a	8.30±2.7^a	8.14±1.1^a	7.24±0.3^b	8.22±0.6^a
Shamouti	8.87±0.9^d	8.03±2.1^b	6.95±0.4^b	7.75±1.6^b	6.9±0.6^c	6.88±0.3^d
Olinda valencia	9.69±2.0^b	8.98±0.7^a	8.27±1.0^a	7.98±1.6^ab	8.06±0.6^a	7.18±0.2^c

Expressed as mg QE/g of dry weight.
Means with a different letter indicate a significant difference (p<0.05). Values are means±SD of triplicate experiments.