%0 Conference Proceedings %T Study of different drying methods on essential oil and Menthol contents of peppermint %A Khorramdel, Soroor %A Asadi, Ghorban Ali %A , %A Zaker Tavallaie, Fatemeh %A Gholami, Mohamad Reza %J دومین کنگره ملی گیاهان دارویی %D 2013