ANTIOXIDANT CAPACITY AND FLAVOR PRESERVED HAZELNUT EXTRACT, MACERATION AND SC-CO2 EXTRACTION AND COMPARISON OF EXTRACTION METHODS

In this study, Tombul type hazelnuts (Corylus avellana L.) were extracted by supercritical carbondioxide (SCCO2) extraction and maceration method. The extraction yielded in 8.5% by SC-CO2 extraction when 0.84% by maceration. Extracted hazelnuts were analyzed by Dynamic Headspace Analysis/Gas ChromatographyMass Spectrometry and 24 volatile compounds were detected after SC-CO2 method while 41 compounds were detected after maceration. Flavour and antioxidant value preserved Hazelnut extract by SC-CO2 technique showed better radical scavenging ability in 2,2-Diphenyl-1-picrylhydrazyl (DPPH) than the one by maceration. Antioxidant activities of the extracts obtained by SC-CO2 (12.35±0.06 μg/mL) and by maceration (8.79±0.23 μg/mL) had a medium impact compared with the synthetic antioxidant standards (P< 0.05). No significant difference was observed between the total phenolic contents of the hazelnut extracts obtained by SC-CO2 method and by maceration (P < 0.05). As a result, SC-CO2 technique for extraction of Tombul type hazelnuts was concluded to be more beneficial and suitable compared to maceration technique.

[1]  Zahra Memariani,et al.  Almond, hazelnut and walnut, three nuts for neuroprotection in Alzheimer's disease: A neuropharmacological review of their bioactive constituents , 2017, Pharmacological research.

[2]  S. Lorkowski,et al.  Chemopreventive Potential of In Vitro Fermented Raw and Roasted Hazelnuts in LT97 Colon Adenoma Cells. , 2018, Anticancer research.

[3]  M. Glei,et al.  B-vitamins, carotenoids and α-/γ-tocopherol in raw and roasted nuts. , 2017, Food chemistry.

[4]  L. Gratani,et al.  Fatty acid content profile and main constituents of Corylus avellana kernel in wild type and cultivars growing in Italy , 2017, Natural product research.

[5]  A. Gray,et al.  Do dry roasting, lightly salting nuts affect their cardioprotective properties and acceptability? , 2017, European Journal of Nutrition.

[6]  N. Abuladze,et al.  CREATION OF OINTMENT COMPOSITIONS CONTAINING PHENOL COMPOUNDS FOR MEDICAL TREATMENT. , 2015, Georgian medical news.

[7]  A. Eskandarian.  Scolicidal effects of squash (Corylus spp) seeds, hazel (Curcurbia spp) nut and garlic (Allium sativum) extracts on hydatid cyst protoscolices , 2012, Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences.

[8]  J. Segovia,et al.  In comparison with palm oil, dietary nut supplementation delays the progression of atherosclerotic lesions in female apoE-deficient mice , 2012, British Journal of Nutrition.

[9]  C. Alasalvar,et al.  Effects of roasting on the antioxidant status and phenolic profiles of commercial Turkish hazelnut varieties (Corylus avellana L.). , 2012, Journal of agricultural and food chemistry.

[10]  Figen Korel,et al.  Flavour of natural and roasted Turkish hazelnut varieties (Corylus avellana L.) by descriptive sensory analysis, electronic nose and chemometrics , 2012 .

[11]  R. Amarowicz,et al.  Effects of roasting on taste-active compounds of Turkish hazelnut varieties ( Corylus avellana L.). , 2010, Journal of agricultural and food chemistry.

[12]  C. Zadra,et al.  Sensory analysis and headspace/gas chromatography of Italian hazelnut varieties. , 2009 .

[13]  Leonardo Rescio,et al.  Supercritical carbon dioxide co-extraction of tomatoes (Lycopersicum esculentum L.) and hazelnuts (Corylus avellana L.): A new procedure in obtaining a source of natural lycopene , 2009 .

[14]  Riccardo Massantini,et al.  Extraction of natural antioxidants from hazelnut (Corylus avellana L.) shell and skin wastes by long maceration at room temperature , 2008 .

[15]  L. Estevinho,et al.  Chemical composition, and antioxidant and antimicrobial activities of three hazelnut (Corylus avellana L.) cultivars. , 2008, Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association.

[16]  M. Öztürk,et al.  Antioxidant abietane diterpenoids from Salvia barrelieri , 2007 .

[17]  U. Salgın,et al.  Supercritical carbon dioxide extraction of hazelnut oil , 2005 .

[18]  N. O'Brien,et al.  Fatty acid profile, tocopherol, squalene and phytosterol content of walnuts, almonds, peanuts, hazelnuts and the macadamia nut , 2004, International journal of food sciences and nutrition.

[19]  Ü. Mehmetoğlu,et al.  Modeling of extraction of β-carotene from apricot bagasse using supercritical CO2 in packed bed extractor , 2004 .

[20]  F. Shahidi,et al.  Comparison of natural and roasted Turkish tombul hazelnut (Corylus avellana L.) volatiles and flavor by DHA/GC/MS and descriptive sensory analysis. , 2003, Journal of agricultural and food chemistry.

[21]  T. Ohshima,et al.  Turkish Tombul hazelnut (Corylus avellana L.). 1. Compositional characteristics. , 2003, Journal of agricultural and food chemistry.

[22]  R. Singh,et al.  Studies on the antioxidant activity of pomegranate (Punica granatum) peel and seed extracts using in vitro models. , 2002, Journal of agricultural and food chemistry.

[23]  S. Saklar,et al.  Determination of optimum hazelnut roasting conditions , 2001 .

[24]  M. Bartlová,et al.  Supercritical carbon dioxide extraction of black pepper , 1995 .

[25]  V. L. Singleton,et al.  Total Phenol Analysis: Automation and Comparison with Manual Methods , 1977, American Journal of Enology and Viticulture.

[26]  F. Hotellier,et al.  [Oils of pharmaceutical dietetic and cosmetic importance. 3. Almond (Prunus amygdalus Stokes dulcis), pits (various Prunus) hazel-nut (Corylus avellana L.)]. , 1972, Annales pharmaceutiques francaises.