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Effect of different drying methods on essential oil and antioxidant activity (DPPH%) of some aromatic plants [electronic resource].

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Abd El-Hafez, Z.A

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Language: English Summary language: Arabic Description: p.166-172Other title:

تأثير طرق تجفيف مختلفة على الزيت العطرى ونشاط مضادات الأكسدة لبعض النباتات العطرية [Added title page title]

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Alexandria science exchange journal, 2011 v. 32 (2) [electronic resource]:

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In: Alexandria Science Exchange Journal 2011.v.32(2)Summary: Different drying methods (Shade, Sun and Electric oven at 35 Co and 50 Co were studied. Effects of these methods on percentage and composition of volatile oils and antioxidant activity (DPPH) of chamomile, peppermint, rosemary and sweet basil plants were studied.Using dry method in shade gave the highest mean value of DPPH% for all experimental plants compared with other drying methods. Shade drying generally seemed better, especially with regard to essential oil and major's compounds percentage of plants experiment followed by oven at (35 CO) drying method.

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Different drying methods (Shade, Sun and Electric oven at 35 Co and 50 Co were studied. Effects of these methods on percentage and composition of volatile oils and antioxidant activity (DPPH) of chamomile, peppermint, rosemary and sweet basil plants were studied.Using dry method in shade gave the highest mean value of DPPH% for all experimental plants compared with other drying methods. Shade drying generally seemed better, especially with regard to essential oil and major's compounds percentage of plants experiment followed by oven at (35 CO) drying method.

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