Lavandula angustifolia ve L. intermedia Türlerinin Hasat Sonrası Kuruma Sürelerinin Uçucu Yağlarının Kimyasal Bileşenleri Üzerindeki Etkileri

Öz

Bu çalışma, Lavanta (L. angustifolia subs. Angustifolia) ve Lavandin (Lavandula x intermedia var. Super A) uçucu yağlarının kimyasal bileşimini rapor etmektedir. Uçucu yağların tanımlanmasında GC ve GC/MS analiz yöntemleri kullanıldı. Lavanta ve Lavandin'in taze ve hava ile kurutulmuş toprak üstü kısımlarından hidrodistilasyon yöntemi ile uçucu yağlar elde edildi. Toplamda, L. angustifolia (taze ve hava ile kurutulmuş toprak üstü kısımları) ve L. intermedia'nın (taze ve hava ile kurutulmuş toprak üstü kısımları) uçucu yağlarında sırasıyla 49, 51, 50 ve 40 bileşen tanımlandı ve miktarı belirlendi. L. angustifolia (taze), L. angustifolia (hava ile kurutulmuş toprak üstü kısımları), L. intermedia (taze) ve L. intermedia'nın (hava ile kurutulmuş toprak üstü kısımları) uçucu yağlarının ana bileşenleri 1,8-sineol (%12,65, %10,15, %12,74, %2,28), linalool (%38,31, %37,94, %38,10, %47,47), kafur (%13,74, %12,52, %7,61, %6,67), borneol (%6,82, %7,16, %6,84, %4,64)’dür. Hasat sonrası kurutma işlemi ile L. angustifolia 'nın taze ve hava ile kurutulmuş toprak üstü kısımlarının uçucu yağlarında 1,8 sineol (%12,65, %10,15) konsantrasyonu azalırken, linalil asetat (%1,02, %2,80) konsantrasyonu artmıştır. Bu çalışma, hasat sonrası kurutmayla birlikte uçucu yağ bileşenlerinde bir değişiklik olduğuna dair kanıt sağlamaktadır. Bu nedenle, bitkinin uçucu yağının, istenen bileşik oranı dikkate alınarak, hasattan sonra toprak üstü kısımlarının taze veya hava ile kurutulmuş şekilde damıtılmasıyla elde edilebileceği sonucuna varılmıştır

Anahtar Kelimeler

• lavandula angustifolia
• Lavandula intermedia
• Uçucu yağ
• hidrodistilasyon

Effects of post-harvest drying times of Lavandula angustifolia and L. intermedia species on chemical components of their essential oils

Abstract

This study reported the chemical composition of essential oils of Lavender (L. angustifolia subs. angustifolia) and Lavandin (Lavandula x intermedia var. Super A). GC and GC/MS analyses were used for the identification of essential oils. The essential oils from fresh and air-dried aerial parts of Lavender and Lavandin were obtained by hydrodistillation method. In total, 49, 51, 50 and 40 constituents were identified and quantified in the essential oils of L. angustifolia (fresh and air-dried aerial parts) and L. intermedia (fresh and air-dried aerial parts) respectively. The major components of essential oils of L. angustifolia (fresh), L. angustifolia (air-dried aerial parts), L. intermedia (fresh) and L. intermedia (air-dried aerial parts) were 1,8-cineole (12.65%, 10.15%, 12.74%, 2,28%), linalool (38.31%, 37.94%, 38.10%, 47.47%), camphor (13.74%, 12.52%, 7.61%, 6.67%), borneol (6.82%, 7.16%, 6.84%, 4.64%). While the 1,8 cineole (12.65%, 10.15%) concentration decreased with the post-harvest drying process, the linaly acetate (1.02%, 2.80%) concentration increased in the essential oils of fresh and air-dried aerial parts of L. angustifolia. This study provides evidence that there is a change in essential oil components with post-harvest drying. Thus, it was concluded that the essential oil of the plant can be obtained by distillation of fresh and air-dried aerial plants after the harvest, considering the desired compound ratio.

Keywords

• Lavandula angustifolia
• Lavanta intermedia
• Essential oil
• Hydrodistillation

Kaynakça

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