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undergraduate thesis
PRIPRAVA BIOFILMOVA NA BAZI KITOZANA I PRAHA ROGAČA
2021. urn:nbn:hr:128:172551
Gvozdenović, Miloš
Karlovac University of Applied Sciences
The Department of Food Processing Technology
Professional Study of Food Processing Technology - Full-time study

Cite this document

Gvozdenović, M. (2021). PRIPRAVA BIOFILMOVA NA BAZI KITOZANA I PRAHA ROGAČA (Undergraduate thesis). Karlovac: Karlovac University of Applied Sciences. Retrieved from https://urn.nsk.hr/urn:nbn:hr:128:172551

Gvozdenović, Miloš. "PRIPRAVA BIOFILMOVA NA BAZI KITOZANA I PRAHA ROGAČA." Undergraduate thesis, Karlovac University of Applied Sciences, 2021. https://urn.nsk.hr/urn:nbn:hr:128:172551

Gvozdenović, Miloš. "PRIPRAVA BIOFILMOVA NA BAZI KITOZANA I PRAHA ROGAČA." Undergraduate thesis, Karlovac University of Applied Sciences, 2021. https://urn.nsk.hr/urn:nbn:hr:128:172551

Gvozdenović, M. (2021). 'PRIPRAVA BIOFILMOVA NA BAZI KITOZANA I PRAHA ROGAČA', Undergraduate thesis, Karlovac University of Applied Sciences, accessed 21 April 2024, https://urn.nsk.hr/urn:nbn:hr:128:172551

Gvozdenović M. PRIPRAVA BIOFILMOVA NA BAZI KITOZANA I PRAHA ROGAČA [Undergraduate thesis]. Karlovac: Karlovac University of Applied Sciences; 2021 [cited 2024 April 21] Available at: https://urn.nsk.hr/urn:nbn:hr:128:172551

M. Gvozdenović, "PRIPRAVA BIOFILMOVA NA BAZI KITOZANA I PRAHA ROGAČA", Undergraduate thesis, Karlovac University of Applied Sciences, Karlovac, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:128:172551

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Metadata
TitlePRIPRAVA BIOFILMOVA NA BAZI KITOZANA I PRAHA ROGAČA
Title (english)PREPARATION OF BIOFILMS BASED ON CHITOSAN AND CAROB EXTRACTS
AuthorMiloš Gvozdenović
MentorJasna Halambek (mentor)
Committee memberInes Cindrić (predsjednik povjerenstva)
Committee memberBojan Matijević (član povjerenstva)
Committee memberJasna Halambek (član povjerenstva)
Committee memberNatalija Kusanić Belinić (član povjerenstva)
GranterKarlovac University of Applied Sciences
(The Department of Food Processing Technology)
(Professional Study of Food Processing Technology - Full-time study)
Karlovac
Defense date and country2021-06-01, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
U ovom radu provedeno je ispitivanje o mogućnosti formiranja jestivih filmova od hidrokoloidnog materijala (kitozan) u ekstraktu brašna rogača, sa ciljem formiranja zaštitnih filmova poboljšanih svojstava. Rogač se tradicionalno koristi u prehrani ljudi dok se brašno sjemenki rogača (E 410) upotrebljava u prehrambenoj industriji kao sredstvo za ugušćivanje i stabilizaciju proizvoda. U radu su pripremani ekstrakti rogača sa tri komercijalno dostupna praha rogača i prahom dobivenim mljevenjem rogača sa otoka Korčule u otopinama 80% etanola, 70% acetona i destiliranoj vodi. Pripremljenim ekstraktima rogača određivana je pH vrijednost i količina ukupnih šećera te se nakon toga pristupilo pripremi otopina kitozana s ekstraktima rogača uz dodatak octene kiseline i glicerola. Otopinama kitozana s ekstraktom rogača mjerena je prividna viskoznost. Priprava filmova je izvršena izlijevanjem i sušenjem dobivenih otopina. Najbolja elastična svojstva kao i najmanje promjene u debljini pokazao je kitozanski film dobiven od ekstrakta praha rogača proizvedenog u Italiji u destiliranoj vodi.
Abstract (english)
In this paper, a study on the possibility of forming edible films of hydrocolloid material (chitosan) in carob flour extract was performed, with the aim of forming protective films of improved properties. Carob is traditionally used in human consumption while carob seed flour (E 410) is used in the food industry as a thickener and product stabilizer. Carob extracts were prepared with three commercially available carob powders and powder obtained by grinding carob from the island of Korčula in solutions of 80% ethanol, 70% acetone and distilled water. The pH value and the amount of total sugars were determined with the prepared carob extracts, after which the preparation of chitosan solutions with carob extracts with the addition of acetic acid and glycerol was started. Apparent viscosity was measured with chitosan solutions with carob extract. Preparation of films was performed by pouring and drying the resulting solutions. The best elastic properties as well as the smallest changes in thickness were shown by the chitosan film obtained from carob powder extract produced in Italy in distilled water.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:128:172551
Study programmeTitle: Food processing technology; specializations in: Milk processing, Brewing industry
Course: Milk processing
Study programme type: professional
Study level: undergraduate
Academic / professional title: stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2021-06-25 08:10:58