Zainab Amran*(1) Mahmoud Ali(1) and Rim Salame(2)
(1). Department of Forestry and Ecology, Faculty of Agriculture, Tishreen University, Latakia, Syria.
(2). Department of Drugs, Faculty of Pharmacy, Tishreen University, Latakia, Syria.
(*Corresponding author: Eng. Zeinab Amran. E-Mail: Zeinabamran212@gmail.com).
Received: 03/07/2019 Accepted: 28/08/2019
Abstract
The study determined the effect of exposure on the total phenolic contents of Sorbus torminalis L., where plant samples (leaves and fruits) were collected from three exposures (south, west and east) in the Cedar-Fir protected area (Slenfeh, Lattakia) in autumn of 2018. The total contents of the phenolic compounds were calibrated using Fulin Cycalto method, expressing the result by the amount of gallic acid in 1 g fresh weight using a (spectrophotometer). The results showed that phenolic compounds were the highest in the Eastern exposure (14.17± 1.96 mg/g) followed by the Western exposure (12.54±1.27 mg/g) and finally the Southern exposure (10.48 ±0.94 mg/g). Regarding the fruits, the Western exposure total phenolic contents of the fruits were more than that at the Eastern and Southern exposures where the highest contents of phenolic compounds (0.42±4.46 mg/g) were found, followed by the eastern exposure ( 0.72±4.25 mg/g). Finally, the southern exposure recorded the lowest yield (0.29±3.51mg/g). The analysis of ANOVA showed significant differences in leaf and fruit contents of phenolic compounds between the Southern and Eastern exposure and the Southern and Western exposures (P <0.0.5), while no significant difference, was observed between East and West exposure (P> 0.05).
Key words: Sorbus torminalis L., Phenolic compounds, Exposure.