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Valorization of Winery Waste: Prokupac Grape Seed as a Source of Nutritionally Valuable Oil

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2021
Valorization_of_Winery_pub_2021.pdf (289.0Kb)
Authors
Milanović, Jelena
Malićanin, Marko
Rakić, Vesna
Jevremović, Nenad
Karabegović, Ivana
Danilović, Bojana
Article (Published version)
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Abstract
Valorization of winery waste is a promising solution for waste management with additional benefit of bioactive compounds isolation. The aim of this study was to analyze the nutritional and bioactive potential of oil derived from Serbian autochthonous grape seed variety Prokupac and to compare it with known international grape varieties. Additionally, two extraction methods (ultrasound assisted extraction and cold pressing) were used in order to determine their influence on physico-chemical and nutritive characteristics of grape seed oil. Different methods, including determination of physicochemical properties, content of bioactive compounds, oxidative stability and antioxidative capacity were used for the characterization of grape seed oils. Results indicated that the higher yield was obtained by ultrasound assisted extraction compared to cold pressing. The application of ultrasound assisted extraction resulted in increased α-tocopherol content and better antioxidant capacity and oxida...tive stability of oil. Significant differences in bioactive composition were observed for Prokupac seed oil compared to the other grape varieties. Oil extracted from Prokupac grape seed had the lowest content of polyunsaturated and the highest content of saturated fatty acids, the highest content of α-tocopherol and consequently, the best antioxidative capacity. Prokupac grape seed has a great potential for isolation of nutritive and bioactive valuable oil.

Keywords:
Grape seed oil / Prokupac / Winery waste
Source:
Agronomy, 2021, 11, 9, 1864-
Publisher:
  • MDPI
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200133 (Univeristy of Niš, Faculty of Technology, Leskovac) (RS-200133)

DOI: 10.3390/agronomy11091864

ISSN: 2073-4395

WoS: 000699124800001

Scopus: 2-s2.0-85116644252
[ Google Scholar ]
URI
http://aspace.agrif.bg.ac.rs/handle/123456789/5948
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  • Radovi istraživača / Researchers’ publications
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Poljoprivredni fakultet

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