Chemical Composition and Antioxidant Activity of Zanthoxylum armatum Leaves in Response to Plant Age, Shoot Type and Leaf Position

Zanthoxylum armatum (Z. armatum) leaves represent more than 50% of by-products with promising potential applications, and there are still largely unknown variations in chemical composition antioxidant activity its leaves. In the present study, changes carbon (C), nitrogen (N) phosphorous (P), soluble protein (SP), amino acid (AA), sugar (SS), total phenol (TP) flavonoids (TF) content as well capacity Z. from two plant ages between shoot types three leaf positions were investigated. Our results showed that significant effects age, type position their interactions on almost all tested parameters. Shoot main factor affecting accumulation compositions capacity, followed by ages. had stronger age. Statistical analysis revealed a series correlations TP elements. leaves, an agricultural by-product, differences response to position, which can be valuable incentive cultivation management strategy better utilization for economic environmental benefits.