Journals / Bartın Orman Fakültesi Dergisi / 2018 / Cilt: 20 - Sayı: 2

Effect of Drying Methods on the Composition Volatile of Compounds of Thyme (Thymus sipyleus Boiss. var. sipyleus)

Farklı Kurutma Yöntemlerinin Kekik (Thymus sipyleus Boiss. var. sipyleus) Uçucu Bileşenleri Üzerine Etkisi

Pages
210–215
Publication Date
2018-08-16
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Air-drying and 50 oC oven-drying can be suitable methods for drying of this species.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Drying is an important application for aromatic plants and showed variations regard to plant material and drying methods.
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Key Findings & Data:In this study, aerial parts of Thymus sipyleus Boiss.var.sipyleus were dried with four different drying methods (Air-dried, Microwave, Freeze-drying, oven drying at 50-70 oC.) and extracted with Simultaneous Distillation-Extraction (SDE) to determine the volatile compounds.
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Conclusion & Impact:Air-drying and 50 oC oven-drying can be suitable methods for drying of this species.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Freeze drying · Microwave drying · Oven-dry

Abstract

Drying is an important application for aromatic plants and showed variations regard to plant material and drying methods. In this study, aerial parts of Thymus sipyleus Boiss.var.sipyleus were dried with four different drying methods (Air-dried, Microwave, Freeze-drying, oven drying at 50-70 oC.) and extracted with Simultaneous Distillation-Extraction (SDE) to determine the volatile compounds. Citronellol, 1,8-cineol, camphor camphene and myrcene were found to be the dominant compounds in all samples. The amount of citronellol increased with drying to 22,7% where this amount was 17,9% in the fresh samples. Thymol was ranging between 0,35-3,80% with different drying methods. Drying procedure decreases (3-5%) the amount of monoterpene hydrocarbons. However, alcohol forms of these compounds were increased (1-6%). Air-drying and 50 oC oven-drying can be suitable methods for drying of this species.

Özet

Kurutma işlemi aromatik bitkiler için önemli bir uygulama olup, bitki materyali ve kurutma yöntemine göre farklılıklar göstermektedir. Bu çalışmada limoni kekik olarak bilinen Thymus sipyleus Boiss.var.sipyleus yaprakları 4 farklı kurutma yöntemi ( Açık havada, mikrodalga, donduruculu kurutucu, 50-70 oC’de fırında) ile kurutulmuştur. Uçucu bileşenler eşzamanlı destilasyon-ekstraksiyon (SDE) yöntemiyle ekstrakte edilmiştir. Citronellol, 1,8-cineol, camphor camphene ve myrcene bütün örneklerde en önemli bileşikler olarak bulunmuştur. Taze yaprakta % 17,9 olan citronellol miktarı kurutma işlemi ile % 22,7’ye yükselmiştir. Thymol oranı ise farklı kurutma yöntemlerinde % 0,35-3,80 arasında değişmektedir. Kurutma işlemi monoterpen hidrokarbon oranını düşürmüştür (%3-5). Fakat, bu grubun alkol formu ise artmıştır (%1-6). Açık havada kurutma veya 50oC’de fırında kurutma bu tür için en uygun yöntemdir.

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Cite This Article

PEKGÖZLÜ, A. K., ÖZCAN, K. (2018). Effect of Drying Methods on the Composition Volatile of Compounds of Thyme (Thymus sipyleus Boiss. var. sipyleus). Bartın Orman Fakültesi Dergisi, Cilt: 20 - Sayı: 2, 210–215. https://ajindex.com/articles/114339

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