. 2023 Jul 7;7:100541. doi: 10.1016/j.crfs.2023.100541

Table 3.

Physicochemical properties, skin color, and textural properties of chitosan-coated North American pawpaw (Asimina triloba) fruits of the 10–35 cultivar during a 25-day storage at 6 °C.

Treatment	Day	pH	Titratable Acidity (mg of acetic acid/100 ml)	Total soluble solids (Brix)	Moisture loss (%)	L*	a*	b*	Chroma	ΔE	Hardness (kg)	Cohesiveness ratio (%)
Control	0	6.71 ± 0.12 ^aA	88.08 ± 13.87 ^aA	22.38 ± 1.00 ^aA	0.00 ± 0.00 ^dG	48.07 ± 2.34 ^aAB	−7.16 ± 0.85 ^dDEFGH	26.74 ± 3.17 ^aAB	27.76 ± 2.88 ^aAB	0.00 ± 0.00 ^cH	3.7 ± 0.5 ^aA	26.69 ± 1.40 ^bC
	5	6.28 ± 0.39 ^abA	74.73 ± 48.92 ^aA	21.24 ± 3.82 ^aA	2.82 ± 0.60 ^cCDE	45.20 ± 1.26 ^aABC	−4.92 ± 1.25 ^cdCDEFG	25.31 ± 2.15 ^abAB	25.88 ± 1.97 ^abABC	6.84 ± 3.37 ^cEFGH	3.8 ± 1.4 ^Aa	30.60 ± 2.06 ^abBC
	10	6.06 ± 0.47 ^abA	66.72 ± 24.46 ^aA	19.51 ± 0.70 ^aA	3.46 ± 0.14 ^cCD	42.67 ± 3.51 ^abABCD	−2.51 ± 2.62 ^bcABCDEF	22.78 ± 5.02 ^abABC	23.08 ± 5.03 ^abABCD	10.37 ± 5.00 ^bcCDEFGH	3.2 ± 1.2 ^aA	36.27 ± 7.78 ^abABC
	15	6.02 ± 0.48 ^abA	61.39 ± 30.31 ^aA	20.48 ± 2.46 ^aA	3.82 ± 1.08 ^bCD	36.80 ± 3.90 ^bcBCDE	0.97 ± 1.87 ^abABC	14.36 ± 6.13 ^bcBCDE	14.73 ± 5.74 ^bcBCDE	19.08 ± 7.19 ^abABCDE	3.3 ± 0.9 ^aA	41.19 ± 6.22 ^aABC
	20	5.41 ± 0.18 ^bA	74.73 ± 4.62 ^aA	21.18 ± 3.30 ^aA	5.26 ± 0.45 ^abAB	33.35 ± 3.32 ^cdDE	3.52 ± 1.49 ^aAB	8.66 ± 4.81 ^cdDE	9.74 ± 4.56 ^cDE	25.85 ± 4.62 ^aAB	2.4 ± 0.6 ^aA	32.35 ± 2.29 ^abABC
	25	5.93 ± 0.60 ^abA	66.72 ± 16.67 ^aA	20.50 ± 3.60 ^aA	6.62 ± 0.74 ^aA	28.79 ± 1.79 ^dE	3.81 ± 1.47 ^aA	2.59 ± 2.86 ^dE	4.82 ± 2.86 ^cE	29.47 ± 0.72 ^aA	1.9 ± 0.4 ^aA	31.78 ± 6.86 ^abBC
1% Chitosan	0	6.61 ± 0.33 ^abA	58.72 ± 4.62 ^aA	18.66 ± 1.90 ^aA	0.00 ± 0.00 ^eG	50.96 ± 1.52 ^aA	−13.35 ± 1.51 ^bH	28.09 ± 1.15 ^aA	31.15 ± 1.50 ^aA	0.00 ± 0.00 ^bH	3.8 ± 1.4 ^aA	32.28 ± 7.62 ^aABC
	5	6.67 ± 0.29 ^aA	69.39 ± 16.67 ^aA	19.80 ± 1.88 ^aA	1.59 ± 0.50 ^dEF	49.81 ± 2.32 ^aA	−13.00 ± 1.44 ^bH	27.20 ± 1.23 ^aAB	30.17 ± 1.52 ^aA	2.94 ± 1.16 ^bGH	3.3 ± 0.5 ^aA	31.22 ± 4.36 ^aBC
	10	6.45 ± 0.28 ^abcA	74.73 ± 4.62 ^aA	17.97 ± 1.87 ^aA	2.53 ± 0.26 ^cdDE	48.43 ± 2.53 ^aA	−11.64 ± 1.65 ^abGH	25.52 ± 1.63 ^aAB	28.08 ± 2.15 ^aAB	6.65 ± 1.82 ^abEFGH	3.6 ± 0.1 ^aA	34.94 ± 2.19 ^aABC
	15	6.29 ± 0.55 ^abcA	66.72 ± 25.74 ^aA	18.70 ± 2.17 ^aA	3.12 ± 0.31 ^bcCD	46.99 ± 3.97 ^aABC	−11.06 ± 2.36 ^abGH	25.58 ± 2.94 ^aAB	27.91 ± 3.62 ^aAB	7.96 ± 2.29 ^abDEFGH	3.4 ± 0.9 ^aA	36.09 ± 9.88 ^aABC
	20	5.72 ± 0.19 ^bcA	120.10 ± 48.70 ^aA	21.09 ± 0.45 ^aA	4.07 ± 0.15 ^bBC	45.09 ± 4.43 ^aABC	−9.17 ± 2.83 ^abEFGH	24.74 ± 3.65 ^aABC	26.46 ± 4.38 ^aAB	9.10 ± 2.69 ^abDEFGH	3.3 ± 0.1 ^aA	37.45 ± 1.84 ^aABC
	25	5.66 ± 0.32 ^cA	93.41 ± 18.49 ^aA	20.71 ± 1.55 ^aA	5.82 ± 0.69 ^aA	42.15 ± 8.21 ^aABCD	−4.44 ± 5.79 ^aBCDEFG	18.57 ± 8.33 ^aABCD	19.80 ± 9.17 ^aABCD	17.25 ± 8.58 ^aABCDEF	2.2 ± 0.2 ^aA	44.62 ± 0.49 ^aAB
2% Chitosan	0	6.56 ± 0.49 ^aA	58.72 ± 16.67 ^aA	19.12 ± 2.79 ^aA	0.00 ± 0.00 ^eG	49.64 ± 0.45 ^aA	−11.86 ± 1.48 ^bGH	27.08 ± 0.90 ^aAB	29.59 ± 1.39 ^aA	0.00 ± 0.00 ^cH	3.1 ± 0.5 ^aA	32.16 ± 2.10 ^bABC
	5	6.43 ± 0.65 ^aA	66.72 ± 18.49 ^aA	19.49 ± 0.96 ^aA	0.93 ± 0.23 ^dFG	46.85 ± 0.90 ^abABC	−10.01 ± 1.98 ^bFGH	25.85 ± 1.21 ^aAB	27.76 ± 1.85 ^abAB	5.01 ± 1.06 ^bcFGH	3.7 ± 1.8 ^aA	30.48 ± 7.15 ^bBC
	10	6.38 ± 0.64 ^aA	56.05 ± 21.18 ^aA	19.70 ± 1.93 ^aA	2.64 ± 0.41 ^cDE	44.00 ± 3.31 ^abcABCD	−4.42 ± 0.59 ^abBCDEFG	22.02 ± 3.79 ^abABC	23.11 ± 4.59 ^abcABCD	11.84 ± 1.21 ^abcCDEFGH	3.2 ± 0.4 ^aA	40.24 ± 5.60 ^abABC
	15	6.03 ± 0.66 ^aA	85.41 ± 40.30 ^aA	20.76 ± 1.14 ^aA	2.82 ± 0.19 ^cCDE	40.57 ± 3.63 ^abcABCD	−4.17 ± 3.84 ^abABCDEFG	18.34 ± 4.96 ^abABCD	19.00 ± 5.67 ^abcABCD	14.98 ± 6.00 ^abBCDEFG	3.2 ± 0.1 ^aA	39.49 ± 2.28 ^abABC
	20	5.93 ± 0.49 ^aA	80.07 ± 27.74 ^aA	18.86 ± 1.58 ^aA	4.14 ± 0.36 ^bBC	36.56 ± 4.92 ^bcCDE	−1.43 ± 4.02 ^aABCDE	14.95 ± 5.73 ^abABCDE	15.40 ± 6.08 ^bcBCDE	20.80 ± 7.44 ^aABCD	2.3 ± 0.4 ^aA	44.31 ± 3.56 ^aAB
	25	5.77 ± 0.18 ^aA	72.06 ± 13.87 ^aA	17.91 ± 1.84 ^aA	5.64 ± 0.38 ^aA	36.13 ± 6.14 ^cCDE	0.28 ± 3.89 ^aABCD	11.80 ± 7.56 ^bCDE	12.37 ± 7.48 ^cCDE	24.19 ± 8.66 ^aABC	2.8 ± 0.7 ^aA	47.38 ± 2.78 ^aA

Means for the parameters in each treatment that do not share a superscript are significantly different at p ≤ 0.05.

Lowercase superscripts represent statistical differences within treatment groups for the respective treatments and uppercase superscripts represent statistical differences between all treatment groups at p ≤ 0.05.