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undergraduate thesis
UV/VIS spektar cimetne i klorogenske kiseline
2011. urn:nbn:hr:109:090842
Miljić, Goran
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Applied Chemistry and Ecology
Sub-department of Biochemistry and Toxicology

Cite this document

Miljić, G. (2011). UV/VIS spektar cimetne i klorogenske kiseline (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY. Retrieved from https://urn.nsk.hr/urn:nbn:hr:109:090842

Miljić, Goran. "UV/VIS spektar cimetne i klorogenske kiseline." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2011. https://urn.nsk.hr/urn:nbn:hr:109:090842

Miljić, Goran. "UV/VIS spektar cimetne i klorogenske kiseline." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2011. https://urn.nsk.hr/urn:nbn:hr:109:090842

Miljić, G. (2011). 'UV/VIS spektar cimetne i klorogenske kiseline', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, accessed 09 January 2025, https://urn.nsk.hr/urn:nbn:hr:109:090842

Miljić G. UV/VIS spektar cimetne i klorogenske kiseline [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY; 2011 [cited 2025 January 09] Available at: https://urn.nsk.hr/urn:nbn:hr:109:090842

G. Miljić, "UV/VIS spektar cimetne i klorogenske kiseline", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, Osijek, 2011. Available at: https://urn.nsk.hr/urn:nbn:hr:109:090842

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Metadata
TitleUV/VIS spektar cimetne i klorogenske kiseline
Title (english)UV/VIS properties of cinnamic and chlorogenic acid
AuthorGoran Miljić
MentorIvica Strelec (mentor)
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
(Department of Applied Chemistry and Ecology)
(Sub-department of Biochemistry and Toxicology)
Osijek
Defense date and country2011-10-25, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Engineering
Abstract
Cimetna i klorogenska kiselina polifenolni su spojevi koji su pronađeni voću, povrću, cvijeću i medu. Cilj je ovog rada bio odrediti UV/VIS svojstva cimetne i klorogenske kiseline u ovisnosti o primijenjenom pH. Snimanjem UV/VIS spektra cimetne i klorogenske kiseline u rasponu od 200 do 800 nm uočeno je kako obje kiseline pokazuju jedan vrh apsorbancije karakterističan za sve polifenole, a osim ovog vrha cimetna je kiselina pokazivala jedan dodatni vrh apsorbancije, a klorogenska kiselina čak tri dodatna vrha apsorbancije. Intenzitet i položaj, kao i pomak položaja vrhova specifičnih za pojedinu ispitanu kiselinu pokazali su se ovisnim o primjenjenom pH što je najvjerojatnije uzrokovano disocijacijom funkcionalnih skupina polifenola.
Abstract (english)
Cinnamic and chlorogenic acid belongs to polyphenolic compounds found in fruit, vegetables, flowers and honey. The aim of this study was to determine pH dependence of cinnamic and chlorogenic acid UV/VIS properties. UV/VIS spectra recording from 200 to 800 nm revealed existence of one unique absorption peak characteristic for all polyphenols. Additionally, cinnamic acid showed existence of another peak characteristic for this polyphenol, and chlorogenic acid existence of three absorption peaks. Intensity and positions, as well as absorption peaks shift, showed dependence on pH applied, what can be attributed to dissociation of functional groups.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:109:090842
ProjectNumber: 113-1130473-0334
Title: Sinergističke smjese u antifungalnoj i antimikotoksigenoj zaštiti hrane
Title: Synergistic mixtures in antifungal and antimycotoxigenic food protection
Leader: Tomislav Klapec
Jurisdiction: Croatia
Funder: MZOS
Funding stream: ZP
ProjectNumber: 113-1130475-2722
Title: Unapređenje kakvoće, trajnosti i funkcionalnosti proizvoda na bazi pšenice
Title: Improvement of quality, shelf life and functionality of wheat-based products
Leader: Daliborka Koceva Komlenić
Jurisdiction: Croatia
Funder: MZOS
Funding stream: ZP
Study programmeTitle: 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 resourceText
File originBorn digital
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Created on2015-12-17 12:40:00