Antioxidant Activities and Quality Characteristics of Organic and Conventional Spinach (Spinacia oleracea)

Shin-Young Lee, Min-Sun Jang, Gun-Hee Kim
2015 Journal of the Korean Society of Food Culture  
Consumers have recently shown great interest in organic foods since they are considered to have higher antioxidant activity compared to conventionally farmed foods. The purpose of this study was to evaluate the general characteristics of organic and conventional spinach, such as length, weight, color, moisture contents, and antioxidant capacity based on ABTS radical scavenging activity, total phenol, and flavonoid contents. Spinach that was used in this study was grown conventionally and
more » ... ally in Po-Hang, Korea. As the results, conventional spinach showed higher values for length, weight (p<0.001), and moisture content (p<0.05). For antioxidant capacity, organically grown spinach showed higher antioxidant activity than the conventional group based on total phenol and flavonoid contents, but only total flavonoid content was significantly different (p<0.05). For ABTS radical scavenging activity, the conventional group showed a slightly higher capacity, but the difference was not significant. Thus, the organic farming system in spinach showed similar or slightly higher antioxidant activities.
doi:10.7318/kjfc/2015.30.6.813 fatcat:456ao7fpfbca3n4c5e53kaqtxy