Castanea sativa Mill. Flowers amongst the Most Powerful Antioxidant Matrices: A Phytochemical Approach in Decoctions and Infusions

Table 1

Content of free sugars and organic acids in mg/g of lyophilized decoction/infusion of the flowers of two Castanea sativa cultivars.

	Decoction judia	Decoction longal	Infusion judia	Infusion longal
Sugars
Fructose	160.41 ± 0.01^a	152.08 ± 6.52^a	148.94 ± 4.60^a	123.58 ± 1.76^b
Glucose	149.09 ± 0.04^b	191.91 ± 7.35^a	145.71 ± 5.63^b	164.07 ± 2.31^b
Sucrose	27.01 ± 0.45^b	25.69 ± 0.99^b	35.68 ± 1.45^a	26.67 ± 0.50^b
Total	336.51 ± 0.48^a	369.69 ± 14.85^a	330.32 ± 11.69^a	314.32 ± 4.57^a
Organic Acids
Oxalic acid	72.91 ± 1.82^a	71.85 ± 0.52^ab	43.42 ± 0.75^c	55.84 ± 1.82^bc
Quinic acid	84.61 ± 0.64^a	52.59 ± 3.14^b	69.04 ± 2.81^ab	61.63 ± 4.40^b
Malic acid	27.17 ± 1.36^a	22.94 ± 0.10^a	25.03 ± 0.52^a	20.82 ± 0.70^a
Shikimic acid	1.83 ± 0.02^a	1.26 ± 0.08^a	1.35 ± 0.02^a	1.35 ± 0.07^a
Total	186.52 ± 3.84^a	148.65 ± 2.79^ab	138.83 ± 2.61^b	139.64 ± 6.99^b

In each row different letters mean significant differences with a 𝑃<0.05. Letters refer to Tukey’s post hoc test; therefore, significant different values were classified using letters in alphabetic order.