18 Apr 2024
Job Information
- Organisation/Company
Slovak University of Agriculture in Nitra- Department
Faculty of Biotechnology and Food Science- Research Field
Agricultural sciences- Researcher Profile
First Stage Researcher (R1)- Country
Slovakia- Application Deadline
31 May 2024 - 23:59 (Europe/Bratislava)- Type of Contract
Not Applicable- Job Status
Full-time- Hours Per Week
37,5- Offer Starting Date
1 Sep 2024- Is the job funded through the EU Research Framework Programme?
Not funded by an EU programme- Is the Job related to staff position within a Research Infrastructure?
No
Offer Description
Variability of occurrence of bioactive substances in by-products of fruit processing
Supervisor: prof. Ing. Judita Lidiková, PhD.
Workplace: Faculty of Biotechnology and Food Science, Slovak University of Agruculture in Nitra
Field of Study: Food Science
Study program: Food Technology
Form of study: full-time
Language: Slovak
Abstract
Wastes and by-products from the food sector are currently of increasing interest in various industries. Plant residues (by-products/wastes) from fruit processing are rich in a variety of bioactive compounds (mainly polyphenols, but also minerals and fiber). They are considered promising, economically and ecologically advantageous raw materials for the food industry.
In this thesis, we will focus on the different by-products (leaves and stems, grape marc, grape seeds, grape skins) that originated in the wine industry, focusing on the chemical composition (fiber, micro-, macro-elements, phenolic acids, flavonoids, vitamins C, D, antioxidant activity) and the changes of these chemical parameters during the technological treatments. The aim will also be to select the varieties of grape waste most suitable in terms of bioactive content to be used as part of innovative food products. In this work, we will focus on different technological preparations of foods with simultaneous modeling of the different proportions of the individual by-products, as well as the selection of the most optimal ratio of by-product addition.
Variabilita výskytu bioaktívnych látok vo vedľajších produktoch spracovania ovocia
Abstrakt
Odpady a vedľajšie produkty z potravinárskeho sektoru sú v súčasnej dobe predmetom zvýšeného záujmu v rôznych odvetviach priemyslu. Rastlinné zvyšky (vedľajší produkt/odpad), vznikajúce pri spracovaní ovocia sú bohaté na široké spektrum bioaktívnych látok (predovšetkým zo skupiny polyfenolov, tiež minerálne látky a vlákninu) sú pokladané za perspektívne, ekonomicky a ekologicky výhodné suroviny pre potravinársky priemysel.
V dizertačnej práce sa zameriame na jednotlivé vedľajšie produkty (listy a stopky, hroznové výlisky, hroznové jadierka, šupky), vznikajúce vo vinárskom priemysle so zameraním sa na chemické zloženie
(vláknina, mikro-, makroprvky, fenolové kyseliny, flavonoidy, vitamíny C,D, antioxidačná aktivita) a zároveň na zmeny týchto chemických parametrov, počas technologických úprav. Cieľom bude aj vyselektovanie najvhodnejších odrôd hroznových výliskov z pohľadu obsahu bioaktívnych látok, ktoré by boli použité ako súčasť inovatívnych potravín. V práci sa zameriame na rôzne technologické prípravy potravín so súčasným modelovaním rôzneho podielu jednotlivých vedľajších produktov ako aj na vyselektovanie najoptimálnejšieho pomeru prídavku vedľajších produktov.
More information about PhD position
Additional research info: [email protected]
https://fbp.uniag.sk/sk/technol%C3%B3gia-potrav%C3%ADn-6623/
https://fbp.uniag.sk/sk/phd-stupen/
https://is.uniag.sk/prihlaska/
Requirements
- Research Field
- Agricultural sciences
- Education Level
- Master Degree or equivalent
- Languages
- SLOVAK
- Level
- Good
Additional Information
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- Faculty of Biotechnology and Food Science, Slovak University of Agruculture in Nitra
- Country
- Slovakia
- City
- Nitra
- Postal Code
- 94976
- Street
- Tr. A. Hlinku 2
- Geofield
Where to apply
- Website
https://is.uniag.sk/prihlaska/
Contact
- State/Province
Slovakia- City
Nitra- Website
http://www.uniag.sk/sk/- Street
Trieda Andreja Hlinku 2- Postal Code
949 76
[email protected]
STATUS: EXPIRED
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