Optimiranje losiona za čišćenje kože lica reološkom metodom

Šarić, Katarina

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master's thesis

Optimiranje losiona za čišćenje kože lica reološkom metodom

Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry, 2019. urn:nbn:hr:163:111715

Šarić, Katarina

University of Zagreb
Faculty of Pharmacy and Biochemistry
Department of pharmaceutical technology

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APA 6th Edition

Šarić, K. (2019). Optimiranje losiona za čišćenje kože lica reološkom metodom (Master's thesis). Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:163:111715

MLA 8th Edition

Šarić, Katarina. "Optimiranje losiona za čišćenje kože lica reološkom metodom." Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, 2019. https://urn.nsk.hr/urn:nbn:hr:163:111715

Chicago 17th Edition

Harvard

Šarić, K. (2019). 'Optimiranje losiona za čišćenje kože lica reološkom metodom', Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, accessed 24 January 2025, https://urn.nsk.hr/urn:nbn:hr:163:111715

Vancouver

Šarić K. Optimiranje losiona za čišćenje kože lica reološkom metodom [Master's thesis]. Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry; 2019 [cited 2025 January 24] Available at: https://urn.nsk.hr/urn:nbn:hr:163:111715

IEEE

K. Šarić, "Optimiranje losiona za čišćenje kože lica reološkom metodom", Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:163:111715

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Metadata

Title	Optimiranje losiona za čišćenje kože lica reološkom metodom
Title (english)	Optimizing the facial skin cleanser by rheological method
Author	Katarina Šarić
Mentor	Jasmina Lovrić (mentor)
Committee member	Jasmina Lovrić (predsjednik povjerenstva)
Committee member	Anita Hafner (član povjerenstva)
Committee member	Marijana Zovko Končić (član povjerenstva)
Granter	University of Zagreb Faculty of Pharmacy and Biochemistry (Department of pharmaceutical technology) Zagreb
Defense date and country	2019-08-29, Croatia
Scientific / art field, discipline and subdiscipline	BIOMEDICINE AND HEALTHCARE Pharmacy Pharmacy
Abstract	Losioni za čišćenje kože lica kozmetički su pripravci čija svojstva moraju biti posebno prilagođena kako bi se smanjila mogućnost iritacije kože nakon čišćenja. Alkalne pH vrijednosti losiona za čišćenje lica mogu uzrokovati iritacije i suhoću kože. Cilj ovog diplomskog rada je optimizirati losion za čišćenje lica reološkom metodom kako bi se postigla odgovarajuća reološka svojstva pri čemu je pH unutar prikladnog raspona. U navedenom je losionu kao emulgator korišten trietanolamin stearat, koji nastaje in situ reakcijom između trietanolamina iz vodene faze i stearinske kiseline iz uljne faze losiona. Promjenom udjela trietanolamina i stearinske kiseline mijenja se pH losiona, ali dolazi i do promjene njegovih reoloških svojstava. Prividna viskoznost losiona rasla je smanjenjem udjela trietanolamina od 2 % (m/m) do 0,25 % (m/m), a smanjivala se smanjenjem udjela stearinske kiseline od 5 % (m/m) do 1 % (m/m). Pojedina reološka svojstva odraz su osjetilnih karakteristika koje značajno utječu na odabir kozmetičkog proizvoda od strane potrošača. Za optimizaciju reoloških svojstava losiona nije dovoljno podesiti sastav trietanolamina i stearinske kiseline, već je potrebno varirati/dodati i druge sastavnice/tvari s utjecajem na strukturu i stabilnost losiona.
Abstract (english)	Facial skin cleansers are cosmetic preparations whose properties must be specially adapted to reduce the risk of skin irritation after cleansing. Alkaline pH values for facial cleansing can cause irritation and skin dryness. The aim of this graduate thesis is to optimize facial cleansing by a rheological method to achieve the appropriate rheological properties with the pH within the appropriate range. In said lotion as emulsifier is used triethanolamine stearate, which is generated in situ by reaction between the triethanolamine from aqueous phase and the stearic acid from the oily phase of the lotion. Changing the proportion of triethanolamine and stearic acid changes the pH of the lotion but changes its rheological properties. The apparent viscosity of the lotion increased by decreasing the share of triethanolamine from 2% (m/m) to 0.25% (m/m) and decreasing by 5% (m/m) to 1% (m/m). Some rheological properties reflect the sensory characteristics that significantly influence the choice of cosmetic products by consumers. The composition of triethanolamine and stearic acid is not sufficient to optimize the rheological properties of lotions, it is also necessary to vary/add other constituents/substances with influence on the structure and stability of the lotion.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:163:111715
Study programme	Title: Pharmacy Study programme type: university Study level: integrated undergraduate and graduate Academic / professional title: magistar/magistra farmacije (magistar/magistra farmacije)
Type of resource	Text
File origin	Born digital
Access conditions	Open access
Terms of use
Repository	Repository of Faculty of Pharmacy and Biochemistry University of Zagreb
Created on	2020-02-28 12:48:30