Comparison of total phenols, flavonoids and antioxidant potential of local and imported ripe bananas

Figures & data

Fig. 1 Banana picture of Somali (Salalah) and Cavendish (Pilipino).

Fig. 2 Whole process of extraction of banana flesh sample.

Table 1 Yield of crude extracts of Salalah and Pilipino ripe banana.

Extracts	Yield (g) Salalah ripe banana	Pilipino ripe banana
Hexane	3.09	4.13
Ethyl acetate	5.22	5.75
Chloroform	4.23	5.89
Butanol	6.01	5.99
Methanol	36.03	35.14
Water	10.23	7.90

The values are means ± S D of three replicates.

Fig. 3 Gallic acid calibration curve.

Table 2 Total phenols content of crude extracts of Salalah and Pilipino ripe banana.

Extracts	Total phenols (mg/GAE/100 g) Salalah ripe banana	Pilipino ripe banana
Hexane	173.44 ± 1.20	205.76 ± 0.15
Ethyl acetate	190.89 ± 11.97	370.13 ± 2.23
Chloroform	175.89 ± 19.45	342.65 ± 2.45
Butanol	131.72 ± 6.04	155.14 ± 0.38
Methanol	386.22 ± 13.00	307.22 ± 1.97
Water	150.13 ± 0.90	163.98 ± 0.54

The values are means ± S D of three replicates.

Fig. 4 Quercetin standard calibration curve.

Table 3 Total flavonoids contents of different crude extracts of Salalah and Pilipino ripe banana.

Crude extracts	Salalah banana (μg·QE/g dry banana samples)	Pilipino banana (μg·QE/g dry banana samples)
Water	8.51 ± 0.12	0.18 ± 0.10
Chloroform	1.71 ± 0.19	1.58 ± 0.17
Methanol	3.80 ± 0.22	1.14 ± 0.09
Hexane	8.18 ± 0.46	0.16 ± 0.10
Ethyl acetate	6.29 ± 0.39	0.89 ± 0.23
Butanol	1.38 ± 0.15	0.76 ± 0.55

The values are means ± S D of three replicates.

Table 4 Antioxidant potential of hexane, ethyl acetate, chloroform, butanol, methanol and water crude extracts from Salalah ripe banana.

Conc. of extract (µg/ml)	Water	Methanol	Hexane	Ethyl acetate	Chloroform	Butanol
200	69.4 ± 0.42	89.3 ± 0.12	80.0 ± 0.51	86.4 ± 0.15	98.1 ± 0.22	88.8 ± 0.65
100	57.2 ± 0.22	67.6 ± 0.16	59.6 ± 0.32	66.2 ± 0.10	91.5 ± 0.20	79.6 ± 0.12
50	49.9 ± 0.14	58.9 ± 0.43	53.0 ± 0.12	54.1 ± 0.15	83.2 ± 0.24	67.1 ± 0.19
25	41.0 ± 0.17	44.2 ± 0.76	44.7 ± 0.33	46.1 ± 0.61	73.7 ± 0.09	54.5 ± 0.42
12.5	39.2 ± 0.32	39.5 ± 0.12	38.3 ± 0.13	41.6 ± 0.10	64.0 ± 0.12	47.2 ± 0.18

Each value is a mean of three biological replicates.

Table 5 Antioxidant potential of hexane, ethyl acetate, chloroform, butanol, methanol and water crude extracts from Pilipino ripe banana.

Conc. of extract (µg/ml)	Water	Methanol	Hexane	Ethyl acetate	Chloroform	Butanol
200	52.6 ± 0.15	64.2 ± 0.17	95.5 ± 0.18	64.2 ± 0.15	60.6 ± 0.51	83.3 ± 0.10
100	41.1 ± 0.19	48.4 ± 0.10	77.2 ± 0.15	48.9 ± 0.11	50.4 ± 0.10	76.5 ± 0.14
50	35.1 ± 0.20	35.9 ± 0.09	53.3 ± 0.42	40.3 ± 0.17	41.6 ± 0.42	59.9 ± 0.23
25	31.7 ± 0.31	32.3 ± 0.72	35.1 ± 0.65	33.2 ± 0.14	34.1 ± 0.12	47.5 ± 0.24
12.5	31.6 ± 0.10	26.7 ± 0.16	29.4 ± 0.10	33.0 ± 0.20	31.3 ± 0.17	30.4 ± 0.19

Each value is a mean of three biological replicates.