Utjecaj različitih eteričnih ulja na rast odabranih kvasaca

undergraduate thesis

• Title (english): The effect of selected essential oils on the growth of chosen yeasts
• Author: Jovana Tintor
• Mentor: Frane Delaš (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Biochemical Engineering); (Laboratory for General Microbiology and Food Microbiology); Zagreb
• Defense date and country: 2010-07-15, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Eterična ulja sastoje se od velikog broja različitih spojeva, zahvaljujući kojima posjeduju antibakterijska, antifungalna, antivirusna, antiparazitska svojstva, te insekticidni učinak.Antimikrobni učinak koji posjeduju eterična ulja može se primijeniti u različitim industrijama, kao što je prehrambena, kozmetička, farmaceutska, te u alternativnoj medicini i prirodnim terapijama.Istraživanja provedena u ovom radu napravljena su u prisutnosti različitih koncentracija različitih eteričnih ulja: ružmarinovog ulja, ulja kadulje, ulja lavande i cimetovog ulja na kvasce: Saccharomyces cerevisiae, Candida lipolytica, Candida utilis, Hansenula anomala i mješovitu kulturu kvasca.Inhibicija rasta odabranih kvasaca djelovanjem različitih odabranih eteričnih ulja istraživana je disk-difuzijskom metodom, mjerenjem promjera zona inhibicije na čvrstoj hranjivoj podlozi u Petrijevoj zdjelici, te je na osnovi dobivenih rezultata istraživanja donesen zaključak o njihovom antimikrobnom djelovanju.Istraživana eterična ulja inhibirala su rast kvasaca. Vrlo dobar antimikrobni učinak na istraživane kvasce imaju eterična ulja ružmarina i kadulje, dok isti na djelovanje ulja lavande i cimeta kvasci pokazuju određenu otpornost.

Abstract (english)

Essential oils are consisted of many compounds that have antifungal, antiviral, antibacterial, antiparasitic and insecticidial effects.The antimicrobial effect of essential oils are used in many industries such as food industry, cosmetics, pharmaceutics, alternative medicine and natural therapy.Studies were made using different concentrations and different essential oils: rosemary oil, sage oil, lavander oil and cinnamon oil on yeasts: Saccharomyces cerevisiae, Candida lipolytica, Candida utilis, Hansenula anomala and mixed culture.Grown inhibition of chosen yeasts effected by different essential oils is explored with disc-diffusion method by measuring the diameter of the zone of inhibition in Petri dish, and with the results of the experiments we determine their antimicrobal effect.All tested essential oils inhibit the growth of yeasts. Very good antimicrobal effect on explored yeasts have essential oils of rosemary and sage, while yeasts show resistance to the effect of the essential oils of lavander and cinnamon.

• Keywords: antimikrobni učinak; eterična ulja; inhibicija; kvasci
• Keywords (english): antimicrobial effect; essential oils; inhibition; yeasts
• Language: croatian
• URN:NBN: urn:nbn:hr:159:951827
• Study programme: Title: Food Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-06-07 11:40:04