Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije

Negovec, Katarina

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undergraduate thesis

Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije

Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2015. urn:nbn:hr:159:160843

Negovec, Katarina

University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for Technology and Analysis of Wine

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APA 6th Edition

Negovec, K. (2015). Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:160843

MLA 8th Edition

Negovec, Katarina. "Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2015. https://urn.nsk.hr/urn:nbn:hr:159:160843

Chicago 17th Edition

Negovec, Katarina. "Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2015. https://urn.nsk.hr/urn:nbn:hr:159:160843

Harvard

Negovec, K. (2015). 'Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 20 April 2024, https://urn.nsk.hr/urn:nbn:hr:159:160843

Vancouver

Negovec K. Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2015 [cited 2024 April 20] Available at: https://urn.nsk.hr/urn:nbn:hr:159:160843

IEEE

K. Negovec, "Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:159:160843

Cite this item: https://urn.nsk.hr/urn:nbn:hr:159:160843

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Metadata

Title	Utjecaj uvjeta ekstrakcije na udio steviol glikozida iz lista stevije
Title (english)	Influence of extraction conditions on the concentration of steviol glycosides from stevia leafs
Author	Katarina Negovec
Mentor	Mara Banović (mentor)
Granter	University of Zagreb Faculty of Food Technology and Biotechnology (Department of Food Engineering) (Laboratory for Technology and Analysis of Wine) Zagreb
Defense date and country	2015-07-08, Croatia
Scientific / art field, discipline and subdiscipline	BIOTECHNICAL SCIENCES Nutrition
Abstract	Cilj rada je usporediti količinu ekstrahiranih steviol glikozida (steviozida i rebaudiozida) iz osušenog lišća biljke Stevia rebaudiana Bertoni. Za ekstrakciju su korištene metoda ekstrakcije ultrazvukom visokog intenziteta i metoda ekstrakcije vodom u aparaturi po Soxhletu. Za analizu dobivenih ekstrakata primjenjena je metoda tekućinske kromatografije visoke djelotvornosti (HPLC). U istraživanju je ispitivana količina navedenih ekstrahiranih komponenti stevije iz 8 uzoraka tretiranih ultrazvukom i jednog uzorka tretiranog metodom po Soxhletu, pri čemu je kao otapalo korištena destilirana voda. Na osnovu dobivenih rezultata može se zaključiti da se veća količina steviozida i rebaudiozida dobije ekstrakcijom pomoću ultrazvuka nego metodom po Soxhletu.
Abstract (english)	The goal of this study was to compare the amount of extracted stevioside and rebaudioside from the dried leaves of Stevia rebaudiana Bertoni. Extraction methods that were used for extracting are high-intensity ultrasound and the Soxhlet extraction method. Method for the analysis of the obtained extracts was high performance liquid chromatography (HPLC). In the study the quantity of extracted components of Stevia was examined from 8 sonicated samples and one sample treated according to Soxhlet method, wherein the solvent used was distilled water. Based on the results it can be concluded that more of stevioside and rebaudioside was obtained by extraction with ultrasound in regards to the method of Soxhlet.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:159:160843
Study programme	Title: Nutrition Study programme type: university Study level: undergraduate Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) nutricionizma (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) nutricionizma)
Type of resource	Text
File origin	Born digital
Access conditions	Access restricted to students and staff of home institution
Terms of use
Repository	Repository of the Faculty of Food Technology and Biotechnology
Created on	2017-04-26 07:46:39

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