Influence of Temperature and Drying Time on Extraction Yield of Phenolic Compounds from Grape Pomace Variety “Portogizac”

The influence of drying temperature (60 °C, 70 °C, 80 °C) and fluid-bed drying time (90 min, 135 min, 180 min) on the extraction yield of phenolic compounds and antioxidant activity of extracts were investigated. The content of phenolic compounds and antioxidant activity of extracts obtained from wet grape pomace (WGP) were 73.83 mgGAE gdb–1, 42.24 mgCE gdb–1, 30.53 mg gdb–1, and 0.35 ginhDPPH gdb–1 for total phenolic compounds (TPC), total flavonoids (TF), total extractible proanthocyanidins (TPA), and antioxidant activity (AA), respectively. The applied drying conditions caused the reduction of content of all phenolic compounds down to 13.2 %, 43.1 %, 15.3 % and 21.0 % for TPC, TPA, TF and AA, respectively. The most abundant individual phenolic compound in grape pomace extracts was catechin (5.14 – 8.52 mg gdb–1). The highest content of observed compounds was retained when applying drying temperature below 70 °C for 90 minutes.

[1]  R. Carle,et al.  By-products of plant food processing as a source of functional compounds — recent developments , 2001 .

[2]  M. D. Pérez-Murcia,et al.  Agrochemical characterisation of the solid by-products and residues from the winery and distillery industry. , 2008, Waste management.

[3]  José Ignacio Arranz,et al.  Characterization of grape pomace and pyrenean oak pellets , 2011 .

[4]  Attilio Converti,et al.  Improvement of olive oil phenolics content by means of enzyme formulations : Effect of different enzyme activities and levels , 2008 .

[5]  L. Howard,et al.  Effect of heating on the stability of grape and blueberry pomace procyanidins and total anthocyanins , 2010 .

[6]  Giorgia Spigno,et al.  Antioxidants from grape stalks and marc: Influence of extraction procedure on yield, purity and antioxidant power of the extracts , 2007 .

[7]  Katsutoshi Inoue,et al.  Grape waste as a biosorbent for removing Cr(VI) from aqueous solution. , 2009, Journal of hazardous materials.

[8]  A. Zalacain,et al.  Waste grape skins thermal dehydration: potential release of colour, phenolic and aroma compounds into wine , 2012 .

[9]  P. Doshi,et al.  Phenolic compounds, antioxidant activity and insulinotropic effect of extracts prepared from grape (Vitis vinifera L) byproducts , 2013, Journal of Food Science and Technology.

[10]  T. Vashisth,et al.  Effects of drying on the phenolics content and antioxidant activity of muscadine pomace , 2011 .

[11]  E. Bertrán,et al.  Composting winery waste: sludges and grape stalks. , 2004, Bioresource technology.

[12]  L. V. Gonzaga,et al.  Phenolic compounds content and antioxidant activity in pomace from selected red grapes (Vitis vinifera L. and Vitis labrusca L.) widely produced in Brazil , 2011 .

[13]  B. Aliakbarian,et al.  High-pressure high-temperature extraction of phenolic compounds from grape skins , 2012 .

[14]  M. Planinić,et al.  Modelling of drying and rehydration of carrots using Peleg’s model , 2005 .

[15]  C. Berset,et al.  Antioxidant Activity of Barley and Malt: Relationship with Phenolic Content , 1996 .

[16]  M. Planinić,et al.  Influence of Solvent and Temperature on Extraction of Phenolic Compounds from Grape Seed, Antioxidant Activity and Colour of Extract , 2009 .

[17]  M. Pinelo,et al.  Separation and HPLC-MS identification of phenolic antioxidants from agricultural residues: almond hulls and grape pomace. , 2007, Journal of agricultural and food chemistry.

[18]  Ulrich Kulozik,et al.  Alternative Drying Processes for the Industrial Preservation of Lactic Acid Starter Cultures , 2007, Biotechnology progress.

[19]  M. Atanassova,et al.  OTAL PHENOLICS AND TOTAL FLAVONOIDS IN BULGARIAN FRUITS AND VEGETABLES , 2005 .

[20]  Weerachet Jittanit,et al.  Comparison Between Fluidized Bed and Spouted Bed Drying for Seeds , 2013 .

[21]  B. Bozan,et al.  Study of polyphenol content in the seeds of red grape (Vitis vinifera L.) varieties cultivated in Turkey and their antiradical activity. , 2008, Food chemistry.

[22]  F. Zamani,et al.  Effect of diet with varying levels of dried grape pomace on dry matter digestibility and growth performance of male lambs , 2010 .

[23]  B. Aliakbarian,et al.  Extraction of phenolics from Vitis vinifera wastes using non-conventional techniques , 2010 .

[24]  N. Tommasi,et al.  Polyphenol constituents and antioxidant activity of grape pomace extracts from five Sicilian red grape cultivars , 2007 .

[25]  T. Gidenne,et al.  Nutritive value of sun-dried grape pomace, incorporated at a low level in complete feed for the rabbit bred under Magrebian conditions , 2010 .

[26]  S. Meziane,et al.  Drying kinetics of olive pomace in a fluidized bed dryer , 2011 .

[27]  A. Mauromoustakos,et al.  Subcritical solvent extraction of anthocyanins from dried red grape pomace. , 2010, Journal of agricultural and food chemistry.

[28]  F. Shahidi,et al.  Extraction and analysis of phenolics in food. , 2004, Journal of chromatography. A.

[29]  George Boskou,et al.  Polyphenolic content and in vitro antioxidant characteristics of wine industry and other agri-food solid waste extracts , 2007 .

[30]  Marcelo G. Molina,et al.  Biogas production from grape pomace: Thermodynamic model of the process and dynamic model of the power generation system , 2012 .

[31]  J Ferrer,et al.  Agronomic use of biotechnologically processed grape wastes. , 2001, Bioresource technology.

[32]  Martha D. Vallejo,et al.  Bioethanol production from grape and sugar beet pomaces by solid-state fermentation , 2010 .

[33]  V. J. Sinanoglou,et al.  On the extraction and antioxidant activity of phenolic compounds from winery wastes , 2007 .

[34]  J. Larrauri,et al.  Effect of Drying Temperature on the Stability of Polyphenols and Antioxidant Activity of Red Grape Pomace Peels , 1997 .

[35]  M. Díaz-Maroto,et al.  Effect of freeze-drying and oven-drying on volatiles and phenolics composition of grape skin. , 2010, Analytica chimica acta.

[36]  Giorgia Spigno,et al.  Grape marc phenolics: Extraction kinetics, quality and stability of extracts , 2010 .

[37]  Giorgia Spigno,et al.  Effects of extraction time, temperature and solvent on concentration and antioxidant activity of grape marc phenolics , 2007 .

[38]  A. Mauromoustakos,et al.  Subcritical solvent extraction of procyanidins from dried red grape pomace. , 2010, Journal of agricultural and food chemistry.

[39]  T. Hogg,et al.  Microbial and chemical changes during the spontaneous ensilage of grape pomace , 1999 .

[40]  Yanyun Zhao,et al.  Effect of different drying methods and storage time on the retention of bioactive compounds and antibacterial activity of wine grape pomace (Pinot Noir and Merlot). , 2012, Journal of food science.

[41]  C. Berset,et al.  Use of a Free Radical Method to Evaluate Antioxidant Activity , 1995 .

[42]  R. Toledo,et al.  Oxygen radical absorbance capacities of grape/wine industry byproducts and effect of solvent type on extraction of grape seed polyphenols , 2006 .

[43]  B. Aliakbarian,et al.  Valorization of olive oil solid waste using high pressure―high temperature reactor , 2011 .

[44]  L. Foo,et al.  The polyphenol constituents of grape pomace , 1999 .

[45]  R. Carle,et al.  Polyphenol screening of pomace from red and white grape varieties (Vitis vinifera L.) by HPLC-DAD-MS/MS. , 2004, Journal of agricultural and food chemistry.

[46]  N. Utama‐ang,et al.  Optimization of extraction and microencapsulation of bioactive compounds from red grape (Vitis vinifera L.) pomace , 2015, Journal of Food Science and Technology.

[47]  G. Raghavan,et al.  Recent advances in drying of biomaterials for superior quality bioproducts , 2007 .

[48]  R. Toledo,et al.  Health aspects of functional grape seed constituents , 2004 .