. 2024 Apr 3;10(7):e29122. doi: 10.1016/j.heliyon.2024.e29122

Table 7.

Effect of time storage conditions on antioxidant properties.

Sample	Time (days)	Antioxidant activity
Sample	Time (days)	TPC (mg GAE/g sample)	DPPH (% scavenging)
Bougainvillea spp.	0	78.57 ± 0.60^a	81.28 ± 0.99^a
	7	64.13 ± 1.45^b	80.80 ± 0.39^a
	14	58.69 ± 2.51^c	75.19 ± 0.36^b
	21	51.67 ± 0.99^d	70.95 ± 1.47^c
	28	44.48 ± 0.79^e	66.19 ± 0.42^d
Purified clay + Bougainvillea spp.	0	155.88 ± 2.47^a	71.43 ± 0.27^a
	7	94.39 ± 0.61^b	69.20 ± 1.63^b
	14	87.54 ± 2.90^c	64.29 ± 0.38^c
	21	77.89 ± 2.79^d	63.55 ± 0.35^cd
	28	66.49 ± 0.80^e	62.34 ± 0.62^d
Pandanus amaryllifolius Roxb.	0	68.57 ± 2.61^a	67.45 ± 0.69^a
	7	63.60 ± 0.55^b	52.23 ± 2.23^b
	14	37.90 ± 0.70^c	49.74 ± 0.18^c
	21	30.44 ± 0.15^d	46.57 ± 0.56^d
	28	27.81 ± 0.16^e	38.64 ± 1.55^e
Purified clay + Pandanus amaryllifolius Roxb.	0	131.58 ± 1.08^a	53.98 + 0.08^a
	7	119.47 ± 2.29^b	49.34 ± 0.52^b
	14	103.33 ± 1.99^c	45.62 ± 3.21^c
	21	92.81 ± 2.90^d	44.21 ± 0.41^cd
	28	87.54 ± 2.19^e	42.22 + 2.09^d
Curcuma longa L.	0	86.45 ± 0.58^a	87.10 ± 0.72^a
	7	64.39 ± 1.10^b	81.40 ± 0.46^b
	14	60.18 ± 0.40^c	79.39 ± 0.48^c
	21	54.13 ± 0.85^d	72.26 ± 0.48^d
	28	48.86 ± 0.85^e	67.10 ± 0.30^e
Purified clay + Curcuma longa L.	0	165.13 ± 1.04^a	86.48 ± 0.26^a
	7	142.98 ± 2.59^b	77.72 ± 0.65^b
	14	136.32 ± 0.53^c	73.21 ± 1.51^c
	21	122.28 ± 3.73^d	71.01 ± 1.42^d
	28	83.86 ± 4.97^e	68.32 ± 1.36^e

The experimental data were obtained in triplicates. The different letters in each column and only sample extract indicate a significant difference (p < 0.05).