Antioxidant Activity of Several Cabbage (Brassica oleracea L.) Cultivars

Abstract

-Total phenol, flavonoid and antioxidant components of cabbage leaf samples derived from different cultivar were determined. Total phenol compound content showed the highest amount in methanol extracts from 'YR Howol' cultivar (11.72 ㎎/g), followed by 'Harutame' (10.66㎎/g), 'Winstar' (10.34 ㎎/g) and YR Hero (10.20 ㎎/g). The highest amount of total flavonoid content was observed from the methanol extracts of Harutame (5.39 ㎎/g), followed by Winstar (4.28 ㎎/g), Wialhowol (4.10 ㎎/g). The SOD enzyme activity showed a high activity of 'YR Hogeo' cultivar, and the cultivar of 'YR Howol' cultivar showed the lowest activity of SOD. The activity of CAT and APX showed higher values 'Ogane' and 'YR Hogeol' cultivars than the other cultivars. The POD activities showed relatively high values 'Ogane' and 'YR Howol' cultivars compared with other cultivars. The free radical (DPPH) scavenging activity showed lower IC50 values of 'Harutame' (15.71) and 'YR Howol' cultivar (16.88), however methanol extract of 'YR Hero' cultivar (22.49) being the highest. The extracts of all cabbage cultivars in the reaction solution of pH 1.2 could be decomposed nitrite more than 50%. Especially, the cultivar 'YR Hogeol' and 'Ogane' showed a relatively high nitrite scavenging activity for each 60.13% and 57.20% respectively. The IC50 values of antioxidant activity determined by ABTS were lower in 'Harutame' (17.04) and 'YR Howol' cultivar (17.97), and its results observed similar with values obtained from the same extracts by DPPH method. The result of this study suggests that the methanol extract of Brassica oleracea L. contains the high amount of phenolic and higher radical scavenging activities.

Radical Scavenging Activities, Total Reducing Power, Total Phenolic and Flavonoids Contents of Four Common Vegetables

“…oleraceae antioxidant activities were already demonstrated in previous studies (Bidchol et al, 2012;Ferreres et al, 2009;Liang et al, 2019;M & Rameshwari. K, 2015;Sotelo et al, 2014;Yang et al, 2015). Previous study corroborates the total reducing powers and DPPH radical scavenging activities found in this study which showed that red cabbage has a greater total reducing power and a greater radical scavenging activity than green cabbage (Liang et al, 2019).…”

Early Defense Mechanisms of Brassica oleracea in Response to Attack by Xanthomonas campestris pv. campestris

“…To investigate the lower ROS level in BR155 compared with SC31 after Xcc inoculation, we carried out a DPPH assay to evaluate non-enzymatic antioxidant activities. Yang et al analyzed the IC 50 value of methanol extracts of several cabbage cultivars using the DPPH assay and found values of 15 to 25 mg/mL [53]. In our system, the IC 50 value of methanol extract of BR155 was 6.5 mg/mL, which indicated relatively high antioxidant activity.…”

Comparison of Antioxidant Activities in Tomato Leaves and Stems

“…Therefore, it is important to enrich one's diet with antioxidants to protect against harmful diseases. Hence, there has been increased interest in the food industry and in preventive medicine in the development of "natural antioxidants" from plant materials (Amaeze et al, 2011;Yang et al, 2015).…”