Effect of harvest time on the levels of phytochemicals, free radical-scavenging activity, α-amylase inhibition and bile acid-binding capacity of spinach (Spinacia oleracea).

Background: Spinach is a green leafy vegetable that is rich in health-promoting compounds. The present study analyzed the levels of phytochemicals and health-promoting properties of spinach harvested at 20, 30, 40, 50 and 60 days after planting.

Results: The time of harvest had a significant effect on nitrate levels, which increased from 1909 ± 70.