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Journals / Gıda / 2026 / Cilt: 43 Sayı: 2

EXTRACTION OF ANTIOXIDANT COMPOUNDS FROM HAZELNUT WASTES USING SUBCRITICAL WATER

KRİTİK ALTI SU İLE FINDIK ATIKLARINDAN ANTİOKSİDAN BİLEŞİKLERİN EKSTRAKSİYONU

Ali Oğuz Büyükkileci
Ece Sürek
Journal
Gıda
Pages
211–221
Publication Date
2018-02-20
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AI Summary & Key Takeaways

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

TPC (905.3-2115.7 mg GAE/100 g shell) and TAA (8163.9-12261.5 mg TE/100 g shell) increased with log R o .

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Turkey is the world leader in hazelnut production and export.
📊
Key Findings & Data:In this study, total phenolic content (TPC) and total antioxidant activity (TAA) in the liquors of hazelnut wastes from subcritical water extraction at different temperature (150-200 ° C) and time (0-45 min. ) values were analyzed.
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Conclusion & Impact:TPC (905.3-2115.7 mg GAE/100 g shell) and TAA (8163.9-12261.5 mg TE/100 g shell) increased with log R o .
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Fındık · atık · antioksidan aktivite

Abstract

Turkey is the world leader in hazelnut production and export. Large amount of wastes such as shell, husk and prunings are produced during the agriculture and processing of hazelnuts. Treatment of hazelnut wastes using an eco-friendly technology and production of valuable products can add value to those. In this study, total phenolic content (TPC) and total antioxidant activity (TAA) in the liquors of hazelnut wastes from subcritical water extraction at different temperature (150-200 ° C) and time (0-45 min. ) values were analyzed. Generally, higher yields were obtained by subcritical water extraction compared to solvent extraction. As temperature increased, TPC and TAA obtained from shells increased. Increase in time did not have a statistically significant effect at 180 ° C; however, TPC increased significantly with time at 190 ° C ( P <0.05) . The combined effect of temperature and time on hazelnut shells was examined in a single variable by calculating logarithmic value of severity factor ( log R o ) . TPC (905.3-2115.7 mg GAE/100 g shell) and TAA (8163.9-12261.5 mg TE/100 g shell) increased with log R o .

Özet

Türkiye fındık üretim ve ihracatında dünya lideridir. Fındığın tarımı ve işlenmesi sırasında büyük miktarda kabuk, zuruf ve dal gibi atıklar açığa çıkmaktadır. Bu atıkların çevre dostu bir teknoloji ile işlenmesi ve önemli ürünlerin üretilmesi katma değer sağlayabilir. Bu çalışmada, fındık atıklarının farklı sıcaklık (150-200 ° C) ve sürelerde (0-45 dk) kritik altı su ekstraksiyonu ile elde edilen likörlerinin toplam fenolik madde içeriği (TFİ) ve toplam antioksidan aktiviteleri (TAA) incelenmiştir. Genel olarak, kritik altı su ekstraksiyonu ile aseton ve metanol ekstraksiyonuna göre daha yüksek verim elde edilmiştir. Sıcaklık arttıkça fındık kabuğundan elde edilen TFİ ve TAA artmıştır. Süre artışı 180 ° C’de istatistiksel olarak önemli bir fark yaratmazken, 190 ° C’de TFİ süre arttıkça yükselmiştir ( P <0.05). Bu iki koşulun fındık kabuğu üzerine etkisi şiddet faktörünün logaritmik değeri (log R o ) hesaplanarak tek bir parametrede de incelenmiştir. log R o arttıkça TFİ (905.3-2115.7 mg GAE/100 g kabuk) ve TAA (8163.9-12261.5 mg TE/100 g kabuk) değerleri yükselmiştir.

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Cite This Article

Büyükkileci, A. O., Sürek, E. (2018). EXTRACTION OF ANTIOXIDANT COMPOUNDS FROM HAZELNUT WASTES USING SUBCRITICAL WATER. Gıda, Cilt: 43 Sayı: 2, 211–221. https://doi.org/10.15237/gida.GD17104

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