THE RELATIONSHIP BETWEEN ANTIOXIDANT ACTIVITIES AND PHENOLIC COMPOUNDS IN SUBCRITICAL WATER EXTRACTS FROM ORANGE PEEL

Yeflil teknoloji olarak da adlandırılan kritik altı su ekstraksiyonu ifllemi farklı bitkilerden ve gıdalardanfitokimyasal bilefliklerin ekstrakte edimesi amacı ile kullanılmaktadır. Gıda endüstrisinde değerli biryan ürün olan portakal kabuğu fenolik bileflikler, ?-karoten ve esansiyel yağlar gibi antioksidan bileflikleraçısından zengin bir kaynaktır. Bu çalıflmada, portakal kabuğundan elde edilen kritik altı su ekstraktlarındaantioksidan aktivite değerleri ile fenolik bileflikler arasındaki iliflkinin saptanması amaçlanmıfltır. Buamaçla, kritik altı su ekstraktlarının Demir indirgeme Gücü Aktivitesi (FRAP), Bakır indirgeme GücüAktivitesi (CUPRAC) ve DPPH radikal süpürme aktivitesi (IC50) ölçülmüfltür. Portakal kabuğundan eldeedilen kritik altı su ekstraktların toplam fenolik madde içeriği ile FRAP ve CUPRAC değerleri arasındakiiliflki istatistiksel (P

PORTAKAL KABUĞUNDAN ELDE EDİLEN KRİTİK ALTI SU EKSTRAKTLARINDA ANTİOKSİDAN AKTİVİTE DÜZEYLERİ İLE FENOLİK BİLEŞİKLER ARASINDAKİ İLİŞKİ

Subcritical water extraction, also called green technology, is used to extract phytochemicals from differentplants and foods. Orange peel, a valuable by-product in the food industry, is a rich source of antioxidantcompounds such as phenolics, β-carotene and essential oils. In this study, determination of the relationshipbetween antioxidant activities and phenolic compounds in subcritical water extracts from orange peel wasaimed. For this aim, The Ferric Reducing Antioxidant Assay (FRAP), The Cupric Reducing AntioxidantCapacity (CUPRAC) and DPPH radical scavenging activity (IC50) of subcritical water extracts weremeasured. Total phenolic contents were statistically significant (P

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