Extraction of Phenolic Compounds from Olive Fruit and Olive Byproducts

Öz

Phenolic compounds are bioactive substances found in plants that exhibiting antioxidant, antimicrobial, and anticarcinogenic properties. Olive fruits contain a variety of phenolic compounds, including phenolic acids (caffeic, ferulic, p-hydroxyphenylacetic, p-coumaric, and 3,4-dihydroxyphenylacetic), phenolic alcohols (hydroxytyrosol, tyrosol), flavonoids (Luteolin-7 glycoside, Apigenin), and secoiridoids (oleuropein).The phenolic content and quantity of the fruit are affected by olive variety, production, maturity, and ecological factorsAlongside traditional techniques, green biorefinery technologies have been implemented for phenolic compound retrieval in recent years. These technologies include ohmic heating, pulsed electric field (PEF), ultrasound (UAE) and microwave-assisted extraction (MAE). These methods not only increase extraction efficiency and quality but also reduce extraction time and energy consumption. This review paper examines the significance of phenolic compounds present in olive fruit and its by-products, as well as the environmentally friendly bio-refinery technologies employed for extracting these compounds.

Anahtar Kelimeler

• Olive (Olea europaea L.)
• Phenolic Compounds
• Green Biorefinery Technologies

Zeytin Meyvesi ve Zeytin Yan Ürünlerinden Fenolik Bileşiklerin Ekstraksiyonu

Öz

Fenolik bileşikler, bitkilerde bulunan ve antioksidan, antimikrobiyal, antikarsinojenik gibi biyoaktiviteleri olan biyoaktif bileşiklerdir. Zeytin meyveleri, kafeik, ferulik, p-hidroksifenilasetik, p-kumarik ve 3,4-dihidroksifenilasetik gibi fenolik asitler, hidroksitirosol ve tirosol gibi fenolik alkoller, Luteolin-7 glikozit ve Apigenin gibi flavonoidler ve oleuropein gibi sekoiridoidler de dahil olmak üzere çeşitli fenolik bileşikler içerir. Meyvenin fenolik içeriği ve miktarı, zeytin çeşidi, üretim, olgunluk ve ekolojik faktörlerden etkilenir. Son yıllarda fenolik bileşiklerin ekstraksiyonunda geleneksel yöntemlerin yanı sıra yeşil biyo-rafine teknolojiler kullanılmaktadır. Bu teknolojiler arasında ohmik ısıtma, darbeli elektrik alan (DEA), ultrason (UDE) ve mikrodalga destekli ekstraksiyon (MDE) teknolojileri yer almaktadır. Bu yöntemler, ekstraksiyon süresini ve enerji kullanımını azaltırken, yüksek verim ve kalite sağlar. Bu derleme çalışması, zeytin meyvesi ve yan ürünlerindeki fenoliklerin önemini ve bu bileşiklerin çıkarılmasında kullanılan çevre dostu biyo-rafineri teknolojilerini ele almaktadır.

Anahtar Kelimeler

• Zeytin (Olea europaea L.)
• Fenolik Bileşikler
• Yeşil Biyo-rafine Teknolojiler

Kaynakça

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