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

Table 2.

Amount of β-Carotene, Vitamin B₁, B_2, B₃, B₅ and Ascorbic Acid (Vitamin C) in untreated and pre-treated dried pineapple slices.

Sample Condition		β-Carotene (μg/100g)	Vitamin B₁ (mg/100g)	Vitamin B₂ (mg/100g)	Vitamin B₃ (mg/100g)	Vitamin B₅ (mg/100g)	Ascorbic Acid (Vitamin C) (mg/100g)
Fresh		87.65 $\pm$ 1.84^a	1.12 $\pm$ 0.07^a	1.98 $\pm$ 0.03^a	1.22 $\pm$ 0.02^a	2.10 $\pm$ 0.02^a	140.92 $\pm$ 0.44^a
Drying at 50 °C	UTR	68.12 $\pm$ 0.44^gh	1.05 $\pm$ 0.02^b	1.06 $\pm$ 0.02^b	1.09 $\pm$ 0.02^b	1.96 $\pm$ 0.07^b	69.61 $\pm$ 0.09^b
	1TR	69.12 $\pm$ 0.25^fgh	0.69 $\pm$ 0.01^k	0.88 $\pm$ 0.02^d	0.73 $\pm$ 0.01ⁱ	1.33 $\pm$ 0.02^h	62.83 $\pm$ 0.09^d
	2TR	71.68 $\pm$ 0.31^e	0.74 $\pm$ 0.01^j	0.83 $\pm$ 0.02^e	0.79 $\pm$ 0.01^gh	1.48 $\pm$ 0.02^g	51.74 $\pm$ 0.09^g
	3TR	75.42 $\pm$ 0.43^cd	0.86 $\pm$ 0.01^e	0.78 $\pm$ 0.02^g	0.88 $\pm$ 0.02^d	1.63 $\pm$ 0.03^d	65.31 $\pm$ 0.43^c
	4TR	77.96 $\pm$ 0.79^b	0.78 $\pm$ 0.01^h	0.67 $\pm$ 0.02^h	0.80 $\pm$ 0.01^g	1.50 $\pm$ 0.02^g	49.86 $\pm$ 0.05^h
Drying at 55 °C	UTR	67.20 $\pm$ 0.82^h	0.93 $\pm$ 0.01^c	1.01 $\pm$ 0.02^c	0.97 $\pm$ 0.02^c	1.86 $\pm$ 0.03^c	62.79 $\pm$ 0.11^d
	1TR	67.19 $\pm$ 0.74^h	0.86 $\pm$ 0.01^e	0.67 $\pm$ 0.01^h	0.87 $\pm$ 0.01^de	1.61 $\pm$ 0.02^de	51.85 $\pm$ 0.08^g
	2TR	70.97 $\pm$ 0.62^ef	0.64 $\pm$ 0.01^l	0.48 $\pm$ 0.01^k	0.65 $\pm$ 0.01^j	1.25 $\pm$ 0.02ⁱ	40.08 $\pm$ 0.07^l
	3TR	74.69 $\pm$ 0.29^d	0.83 $\pm$ 0.01^f	0.68 $\pm$ 0.02^h	0.86 $\pm$ 0.01^e	1.57 $\pm$ 0.01^ef	53.73 $\pm$ 0.13^f
	4TR	76.93 $\pm$ 0.89^bc	0.79 $\pm$ 0.01^g	0.68 $\pm$ 0.03^h	0.82 $\pm$ 0.01^f	1.57 $\pm$ 0.02^ef	45.53 $\pm$ 0.06^j
Drying at 60 °C	UTR	60.99 $\pm$ 0.52^j	0.91 $\pm$ 0.01^d	0.81 $\pm$ 0.04^f	0.98 $\pm$ 0.02^c	1.87 $\pm$ 0.03^c	60.96 $\pm$ 0.11^e
	1TR	64.51 $\pm$ 0.71ⁱ	0.53 $\pm$ 0.01ⁿ	0.49 $\pm$ 0.02^k	0.55 $\pm$ 0.01^k	1.20 $\pm$ 0.02^j	44.02 $\pm$ 0.12^k
	2TR	69.55 $\pm$ 0.39^efg	0.76 $\pm$ 0.01ⁱ	0.68 $\pm$ 0.03^h	0.80 $\pm$ 0.01^fg	1.49 $\pm$ 0.02^g	36.06 $\pm$ 0.10ⁿ
	3TR	73.89 $\pm$ 0.13^d	0.62 $\pm$ 0.01^m	0.52 $\pm$ 0.04^j	0.65 $\pm$ 0.01^j	1.33 $\pm$ 0.01^h	49.45 $\pm$ 0.09ⁱ
	4TR	75.53 $\pm$ 0.60^cd	0.73 $\pm$ 0.01^j	0.64 $\pm$ 0.03ⁱ	0.77 $\pm$ 0.02^h	1.53 $\pm$ 0.03^fg	39.04 $\pm$ 0.47^m

-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.