Table 3.

Changes in total phenolics (TPC), flavonoids (TFC) and anthocyanins content (TAC) and antioxidant activity (AA) in coated and uncoated pomegranate fruits over 120 days storage at 4.5 °C and 3 additional days at 20 °C

Parameters	Treatment	Day storage
		0	40	80	120
TPC	Control	135.6 ± 4.9 abc	135.7 ± 5.1 ab	112.7 ± 2.5 h	84.8 ± 3.5 i
	Chitosan 1 %	135.6 ± 4.9 abc	135.8 ± 4.4 abc	127.8 ± 3.0 bcde	113.5 ± 4.0 fg
	Chitosan 2 %	135.6 ± 4.9 abc	137.4 ± 4.3 ab	125.4 ± 5.3 cde	118.8 ± 4.9 ef
	Carnauba wax	135.6 ± 4.9 abc	138.0 ± 5.8 ab	129.9 ± 6.1 abcd	123.5 ± 4.5 def
	Resin wax	135.6 ± 4.9 abc	139.4 ± 5.2 a	121.9 ± 3.9 def	106.6 ± 4.2 gh
TFC	Control	83.5 ± 2.6 cde	89.8 ± 2.1 ab	73.3 ± 1.9 gh	62.6 ± 1.6 i
	Chitosan 1 %	83.5 ± 2.6 cde	87.4 ± 2.3 abc	83.6 ± 1.9 cde	71.9 ± 1.8 gh
	Chitosan 2 %	83.5 ± 2.6 cde	88.1 ± 3.0 abc	81.2 ± 2.4 def	73.6 ± 1.3 g
	Carnauba wax	83.5 ± 2.6 cde	91.4 ± 1.5 a	83.5 ± 2.1 cde	76.8 ± 1.9 fg
	Resin wax	83.5 ± 2.6 cde	85.1 ± 3.2 bcd	79.2 ± 2.5 ef	68.2 ± 1.9 h
TAC	Control	147.6 ± .04de	166.3 ± 0.3 a	142.3 ± 0.7 ef	106.7 ± 0.5 i
	Chitosan 1 %	147.6 ± 0.04 de	159.1 ± 0.4 abc	152.7 ± 0.7 cd	131.5 ± 0.5 g
	Chitosan 2 %	147.6 ± 0.04 de	163.4 ± 0.3 ab	159.8 ± 0.5 abc	134.5 ± 0.3 fg
	Carnauba wax	147.6 ± 0.04 de	165.2 ± 0.3 ab	156.9 ± 0.5 abcd	141.7 ± 0.5 efg
	Resin wax	147.6 ± 0.04 de	162.4 ± 0.4 abc	155.6 ± 0.3 bcd	120.4 ± 0.4 h
AA	Control	65.7 ± 1.5 def	68.6 ± 1.4 bcd	56.8 ± 1.8 h	48.7 ± 1.6 i
	Chitosan 1 %	65.7 ± 1.5 def	70.7 ± 2.4 bcd	67.2 ± 2.4 cde	58.4 ± 1.7 gh
	Chitosan 2 %	65.7 ± 1.5 def	73.3 ± 2.0 ab	65.5 ± 1.4 cde	60.5 ± 1.6 gh
	Carnauba wax Carnauba wax	65.7 ± 1.5 def	76.4 ± 1.9 a	67.5 ± 1.5 bcd	62.6 ± 2.1 ef
	Resin wax	65.7 ± 1.5 def	72.0 ± 2.2 abc	61.1 ± 2.7 fgh	58.6 ± 1.7 h

Values with different letters across coating treatment and storage time for each parameter are significantly different at p < 0.05. Data are the mean ± S.E. (n = 3). TPC, (mg GAE 100 mL⁻¹ juice); TFC, (mg RE 100 mL⁻¹ juice); TAC, (mg L⁻¹); AA, (% DPPH_SC)