. 2021 Jan 1;7(1):e05882. doi: 10.1016/j.heliyon.2020.e05882

Table 3.

Coefficient of Rehydration (COR), Rehydration Ratio (RR) and Volumetric shrinkage coefficient (S_b) in untreated and pre-treated dried pineapple slices.

Sample Condition		Coefficient of Rehydration (COR)	Rehydration Ratio (RR)	Volumetric Shrinkage Coefficient (S_b)
Drying at 50 °C	UTR	0.486 $\pm$ 0.0008^l	3.705 $\pm$ 0.0061^l	0.22 $\pm$ 0.08^a
	1TR	0.571 $\pm$ 0.0028^k	4.012 $\pm$ 0.0200^j	0.22 $\pm$ 0.02^a
	2TR	0.587 $\pm$ 0.0029^j	3.716 $\pm$ 0.0187^l	0.30 $\pm$ 0.09^a
	3TR	0.738 $\pm$ 0.0052^g	3.942 $\pm$ 0.0277^k	0.31 $\pm$ 0.03^a
	4TR	0.743 $\pm$ 0.0053^g	3.337 $\pm$ 0.0237^m	0.32 $\pm$ 0.01^a
Drying at 55 °C	UTR	0.842 $\pm$ 0.0016^d	6.504 $\pm$ 0.0123^b	0.21 $\pm$ 0.13^a
	1TR	0.941 $\pm$ 0.0028^b	6.840 $\pm$ 0.0204^a	0.21 $\pm$ 0.07^a
	2TR	0.704 $\pm$ 0.0039^h	4.574 $\pm$ 0.0253^g	0.22 $\pm$ 0.05^a
	3TR	0.911 $\pm$ 0.0029^c	5.039 $\pm$ 0.0162^e	0.22 $\pm$ 0.03^a
	4TR	0.939 $\pm$ 0.0038^b	4.388 $\pm$ 0.0176^h	0.26 $\pm$ 0.03^a
Drying at 60 °C	UTR	0.739 $\pm$ 0.0009^g	5.675 $\pm$ 0.0069^d	0.21 $\pm$ 0.10^a
	1TR	0.804 $\pm$ 0.0028^f	5.892 $\pm$ 0.0208^c	0.22 $\pm$ 0.08^a
	2TR	0.649 $\pm$ 0.0034ⁱ	4.156 $\pm$ 0.0218ⁱ	0.25 $\pm$ 0.05^a
	3TR	0.828 $\pm$ 0.0032^e	4.546 $\pm$ 0.0176^g	0.23 $\pm$ 0.02^a
	4TR	1.039 $\pm$ 0.0034^a	4.680 $\pm$ 0.0153^f	0.22 $\pm$ 0.04^a

-All the values in the table are mean $\pm$ SD of three independent determinations. Samples in the same column with different superscript letters differ significantly p < 0.05.