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Journals / Türk Tarım - Gıda Bilim ve Teknoloji dergisi / 2018 / Cilt: 6 - Sayı: 8

Dehydration Kinetics and Infusion Attributes of Microwave Dried Olive Leaves

Mikrodalga ile Kurutulmuş Zeytin Yapraklarının Kurutma Kinetikleri ve Demleme Özellikleri

Özge SÜFER
Ömer Faruk GAMLI
Tülin EKER
Pages
963–970
Publication Date
2022-11-03
DOI
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AI Summary & Key Takeaways

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

Olive leaves dried at 167 W hadhigher phenolic contents (2282.9 mg GAE/kg) among all samples.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Olive leaves have been catching consumers’ and researchers’ great interest because ofbenefits on human health.
📊
Key Findings & Data:In this study, the olive leaves were dried by microwave methodat different powers (52, 90, 167, 290, 347 W real effective power levels) and dryingkinetics of olive leaves were examined to find the best mathematical model.
💡
Conclusion & Impact:Olive leaves dried at 167 W hadhigher phenolic contents (2282.9 mg GAE/kg) among all samples.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Olive leaves have been catching consumers’ and researchers’ great interest because ofbenefits on human health. In this study, the olive leaves were dried by microwave methodat different powers (52, 90, 167, 290, 347 W real effective power levels) and dryingkinetics of olive leaves were examined to find the best mathematical model. Page modelwas the most suitable model rather than the others. Diffusion coefficients were rangedbetween 2.65×10-10 to 6.87×10-10 m2/s and an increment in power level promotedmoisture diffusivities. Dried olive leaves were used to get leave tea and different infusiontemperatures were investigated to recover the total polyphenols (mg GAE/kg) and radicalscavenging activities (%). Rising in infusion temperature, especially at 100°C enhancedthe extraction levels of polyphenols from leave tea. Olive leaves dried at 167 W hadhigher phenolic contents (2282.9 mg GAE/kg) among all samples.

Özet

Zeytin yaprakları, sağlık üzerindeki olumlu etkilerinden dolayı araştırmacıların ve tüketicilerin ilgisini çekmektedir. Bu çalışmada, zeytin yaprakları mikrodalga uygulaması ile 52, 90, 167, 290, 347 W gerçek etkin güç seviyelerinde kurutulmuş ve kurutma kinetikleri, kurutma davranışını en iyi betimleyen matematik modelin belirlenebilmesi maksadıyla incelenmiştir. Page model, diğerlerinin içerisinde en uygun model olarak tespit edilmiştir. Difüzyon katsayıları 2,65×10-10 – 6,87×10-10 m2/s aralığında hesaplanmış olup, güç düzeyindeki artışın, difüzyon katsayısında da artışa sebep olduğu görülmüştür. Kurutulmuş zeytin yaprakları çay elde etmek amacıyla kullanılmış ve farklı demleme sıcaklıklarının, çayın toplam polifenol (mg GAE/kg) ve radikal süpürme aktivitesi (%) üzerindeki etkileri araştırılmıştır. Demleme sıcaklığındaki artışın, özellikle 100°C’de polifenollerin özütlenmesini arttırdığı görülmüştür. 167 W’da kurutulmuş olan zeytin yapraklarının (2282,9 mg GAE/kg) diğer güçlerde kurutulanlara oranla daha fazla fenolik içeriğine sahip olduğu açığa çıkmıştır.

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Cite This Article

SÜFER, Ö., GAMLI, Ö. F., EKER, T. (2022). Dehydration Kinetics and Infusion Attributes of Microwave Dried Olive Leaves. Türk Tarım - Gıda Bilim ve Teknoloji dergisi, Cilt: 6 - Sayı: 8, 963–970. https://ajindex.com/articles/642997

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