Color Kinetics During Ripening of Indian Mangoes

Figures & data

TABLE 1 Kinetic coefficients and goodness-of-fit parameters for the best fitted models for three varieties of mangoes

Variety	Color coordinate	C0	U0	U	k	t0	R^2	Adj-R^2	RMSE
Alphonso	Lo(log)		48.32	15.65	0.36	5.60	0.90	0.89	1.72
	ao(log)		–10.77	40.70	0.36	9.34	0.99	0.99	1.75
	bo(log)		30.62	33.95	0.44	7.35	0.96	0.96	2.44
	Li(log)		82.63	–23.08	0.40	6.73	0.95	0.94	1.94
	ai(log)		10.21	22.38	0.87	6.41	0.95	0.94	2.11
	bi(z)	61.22			0.64		0.75	0.75	3.12
	ΔEo(log)		55.15	–52.33	0.41	8.15	0.98	0.97	2.99
	ΔEi(log)		32.36	–25.89	1.234	5.749	0.87	0.84	4.73
Banganapalli	Lo(log)		50.95	16.75	0.39	7.97	0.91	0.91	1.89
	ao(log)		–14.02	33.60	0.28	10.92	0.95	0.94	2.79
	bo(log)		29.17	23.31	0.51	6.47	0.90	0.89	2.87
	Li(f)		91.24		0.01		0.81	0.81	2.75
	ai(log)		1.33	18.44	1.33	8.18	0.93	0.92	2.54
	bi(log)		19.75	33.15	0.85	7.14	0.91	0.91	4.33
	ΔEo(z)	44.96			–2.01		0.90	0.90	4.53
	ΔEi(log)		42.53	–33.75	1.348	7.321	0.97	0.96	2.55
Neelam	Lo(log)		41.17	18.55	0.55	4.90	0.91	0.89	1.89
	ao(log)		–19.79	41.31	0.35	4.29	0.93	0.92	2.94
	bo(log)		14.58	38.62	0.40	4.70	0.96	0.96	2.02
	Li(z)	83.9			–1.04		0.85	0.84	2.96
	ai(log)		–35.77	56.14	0.29	–0.93	0.86	0.84	2.63
	bi(log)		16.70	44.06	0.49	2.48	0.85	0.84	4.06
	ΔEo(f)	51.13			0.13		0.91	0.91	4.51
	ΔEi(f)	48.14			0.10		0.87	0.87	4.53

o: external peel color; i: internal pulp color; z: zero order model; f: first-order model; log: logistic model; R²: coefficient of determination; RMSE: root mean square error.

Figure 1. Changes in external color and corresponding kinetic models during ripening of three varieties of mango. (a) L_o value, (b) a_o value, and (c) b_o values.

Figure 2. Changes in internal color and corresponding kinetic models during ripening of three varieties of mango. (a) L_i value, (b) a_i value, and (c) b_i values.

Figure 3. Changes in total color differences and corresponding kinetic models during ripening of three varieties of mango. (a) Total color differences for peel, (b) total color differences for pulp.