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This document summarizes a study that evaluated the effects of various drying techniques (air drying, freeze drying, oven drying, sun drying, and freezing) on the composition of psychoactive phenylpropylamino alkaloids in khat leaves. The study found that freeze drying or freezing khat samples preserved over 73% of cathinone content. Air drying preserved 57% of cathinone, while sun drying and oven drying at 60°C preserved 42% and 36% respectively. The study confirms that freshly harvested khat leaves contai

Author

Feras Swaid

Language

EN