Changes in the Total Polyphenolic Content and Antioxidant Capacities of Perilla (Perilla frutescens L.) Plant Extracts during the Growth Cycle

Table 5

Ferric-reducing antioxidant power (FRAP)of the perilla extract and fresh matter (FM) at different growth stages.

Growth stage	Plant height	FRAP
	(cm)	(mmol Fe^2+/g extract)	(mmol Fe^2+/g FM)
Early vegetative	15
Medium vegetative	30
Late vegetative	40
Early flowering	60
Full flowering	70

Means with the same letter in the same column are not significantly different ().