prikaz prve stranice dokumenta Biološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici
Embargo period 2025-06-16
master's thesis
Biološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici
Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry, 2023. urn:nbn:hr:163:425084
Sladić, Anđela
University of Zagreb
Faculty of Pharmacy and Biochemistry
Department of pharmacognosy

Institutional repository: Repository of Faculty of Pharmacy and Biochemistry University of Zagreb

Cite this document

Sladić, A. (2023). Biološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici (Master's thesis). Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:163:425084

Sladić, Anđela. "Biološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici." Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, 2023. https://urn.nsk.hr/urn:nbn:hr:163:425084

Sladić, Anđela. "Biološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici." Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, 2023. https://urn.nsk.hr/urn:nbn:hr:163:425084

Sladić, A. (2023). 'Biološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici', Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:163:425084

Sladić A. Biološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici [Master's thesis]. Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry; 2023 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:163:425084

A. Sladić, "Biološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici", Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:163:425084

Metadata
TitleBiološka aktivnost glicerolnih ekstrakata širokolisnog trputca (Plantago major L.) bogatih polifenolima i verbaskozidom za primjenu u kozmetici
Title (english)Biological activity of broadleaf plantain (Plantago major L.) glycerol extracts rich in polyphenols and verbascoside for application in cosmetics
AuthorAnđela Sladić
MentorMarijana Zovko Končić (mentor)
Committee memberMarijana Zovko Končić (predsjednik povjerenstva)
Committee memberMaja Bival Štefan (član povjerenstva)
Committee memberLidija Bach-Rojecky (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Pharmacy and Biochemistry
(Department of pharmacognosy)
Zagreb
Defense date and country2023-06-16, Croatia
Scientific / art field,
discipline and subdiscipline		BIOMEDICINE AND HEALTHCARE
Pharmacy
Pharmacy
Abstract
Biljne vrste bogate biološki aktivnim sastavnicama predmetom su brojnih istraživanja zbog svojih pozitivnih učinaka na kožu i potencijalne primjene u kozmetičkim formulacijama. U prethodnim istraživanjima razvijene su (optimizirane) dvije metode ekstrakcije nadzemnih dijelova širokolisnog trputca (P. major L., Plantaginaceae), pomoću vodene otopine glicerola i mliječne kiseline. Prvom metodom je postignuta maksimalna količina ukupnih polifenola, a drugom maksimalna količina verbaskozida u priređenim ekstraktima OPT-TP odnosno OPT-VER. U ovom radu provedeno je istraživanje antioksidativne aktivnosti priređenih ekstrakata te inhibitorne aktivnosti prema enzimima koji utječu na izgled i zdravlje kože. Antioksidativna aktivnost određena je pomoću antiradikalne 2,2-difenil-1-pikrilhidrazil (DPPH) metode, a biološki učinci ispitani su enzimskim testovima inhibicije elastaze, kolagenaze, hijaluronidaze i tirozinaze. Ispitani ekstrakti pokazali su iznimno dobar antioksidativni potencijal, nadmašivši pritom aktivnost butilhidroksianisola, koji je korišten kao pozitivna kontrola. Najbolja biološka aktivnost ekstrakata ostvarena je u testu inhibicije kolagenaze. Nadalje, utvrđena je značajna inhibicija hijaluronidaze, umjerena sposobnost inhibicije elastaze te blaga inhibicija tirozinaze. Ekstrakt OPT-TP postigao je veću aktivnost u svim biološkim ispitivanjima, osim u testu inhibicije kolagenaze, gdje je aktivniji bio OPT-VER. Također, u odnosu na OPT-TP, OPT-VER pokazao je nešto veću sposobnost hvatanja slobodnih radikala u DPPH antioksidativnoj analizi.
Abstract (english)
Plant species rich in biologically active components are the subject of numerous studies due to their positive effects on the skin and potential application in cosmetic formulations. In previous research, two methods using aqueous solution of glycerol and lactic acid were developed (optimized) for extraction of broadleaf plantain (P. major L., Plantaginaceae) aerial parts. The first method achieved maximum quantity of total polyphenols, and the other maximum quantity of verbascoside in the corresponding extracts (OPT-TP and OPT-VER). In this work, the antioxidant activity of the prepared extracts and the inhibitory activity against enzymes that affect the appearance and health of the skin were investigated. Antioxidant activity was determined using the antiradical 2,2-diphenyl-1-picrylhydrazyl (DPPH) method and biological effects were examined by enzymatic assays of elastase, collagenase, hyaluronidase and tyrosinase inhibition. Tested extracts showed extremely notable antioxidant potential, surpassing the activity of butylhydroxyanisole, which was used as a positive control. The best biological activity of the extracts was achieved in the collagenase inhibition test. Furthermore, a significant inhibition of hyaluronidase, a moderate ability to inhibit elastase and a slight inhibition of tyrosinase was established. Extract OPT-TP achieved greater activity in all biological tests, except in the collagenase inhibition test, where OPT-VER was more active. Also, compared to OPT-TP, OPT-VER showed a slightly higher ability to capture free radicals in the DPPH antioxidant assay.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:163:425084
Study programmeTitle: Pharmacy
Study programme type: university
Study level: integrated undergraduate and graduate
Academic / professional title: magistar/magistra farmacije (magistar/magistra farmacije)
Type of resourceText
File originBorn digital
Access conditionsEmbargoed access
Embargo expiration date: 2025-06-16
Terms of useLicence In copyright icon
Created on2023-11-08 13:49:11