A Study on Pulp Phenolic Compounds of Clementine Mandarin Grafted on Different Rootstocks

The aim of this research is to identify rootstock that can synthesize the maximum level of flavonoids.Total flavonoids and total phenols content was measured using aluminum chloride colorimetric and Folin- Ciocalteau colorimetric method respectively. The antioxidant activities were evaluated using reducing scavenging assays of DPPH radicals. HPLC-PDA detection was used for the analysis of individual flavanones. The results showed that, the highest individually flavanones (۲.۱۲ mg/g DW), total flavonoids(۲.۰۰ mg/g DW), total phenol (۲.۲۲ mg/g DW) and DPPH (۲۳.۱۰ mg/g DW) were in the pulp of Clementine mandarin grafting on the Sour orange.

Keywords:

Citrus rootstocks , Phenolic compounds , Clementine mandarin.