Origin of the MRI Contrast in Natural and Hydrogel Formulation of Pineapple Juice

Table 1

Best fit parameters for pineapple juice without and with addition of alginate 5% or 15% w/w.

	Pineapple				+5% alginate		+15% alginate
	25°C	37°C	25°C	37°C	25°C	37°C	25°C	37°C
	2.85								Å
	5.3 ± 0.3		4.0 ± 0.1		4.5 ± 0.3		4.3 ± 0.4
	0.015 ± 0.001								cm^−1
	42 ± 3	30 ± 2	1700 ± 300	1000 ± 200	4700 ± 1100	2900 ± 800	4700 ± 1200	2700 ± 800	ps
	11 ± 1	9 ± 1	9 ± 1	7 ± 1	16 ± 1	16 ± 1	16 ± 3	16 ± 3	ps
	22 ± 2	16 ± 2	39 ± 3	29 ± 2	200 ± 90	91 ± 60	140 ± 80	92 ± 60	ns
	—		0.021 ± 0.003		0.05 ± 0.01		0.10 ± 0.01
	—	—	51 ± 2	36 ± 2	74 ± 8	49 ± 6	83 ± 15	54 ± 11	ps
A^FC/h	0.63 ± 0.02		0.55 ± 0.02		0.37 ± 0.02		0.38 ± 0.05		MHz

Outer sphere relaxation was also included with d = 3.6 Å and D = 3.0·10⁻⁵ and 3.9·10⁻⁵cm²/s at 25°C and 37°C, respectively. fixed.