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master's thesis
Održivost proizvedenog hladno prešanog ulja chie (Salvia hispanica L.)
2015. urn:nbn:hr:109:036684
Bilić, Lucija
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Food Technologies
Sub-department of Food Engineering

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Bilić, L. (2015). Održivost proizvedenog hladno prešanog ulja chie (Salvia hispanica L.) (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY. Retrieved from https://urn.nsk.hr/urn:nbn:hr:109:036684

Bilić, Lucija. "Održivost proizvedenog hladno prešanog ulja chie (Salvia hispanica L.)." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2015. https://urn.nsk.hr/urn:nbn:hr:109:036684

Bilić, Lucija. "Održivost proizvedenog hladno prešanog ulja chie (Salvia hispanica L.)." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2015. https://urn.nsk.hr/urn:nbn:hr:109:036684

Bilić, L. (2015). 'Održivost proizvedenog hladno prešanog ulja chie (Salvia hispanica L.)', Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, accessed 05 April 2025, https://urn.nsk.hr/urn:nbn:hr:109:036684

Bilić L. Održivost proizvedenog hladno prešanog ulja chie (Salvia hispanica L.) [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY; 2015 [cited 2025 April 05] Available at: https://urn.nsk.hr/urn:nbn:hr:109:036684

L. Bilić, "Održivost proizvedenog hladno prešanog ulja chie (Salvia hispanica L.)", Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, Osijek, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:109:036684

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Metadata
TitleOdrživost proizvedenog hladno prešanog ulja chie (Salvia hispanica L.)
Title (english)Shelf life of the cold pressed chia seed oil (Salvia hispanica L.)
AuthorLucija Bilić
MentorTihomir Moslavac (mentor)
Committee memberVedran Slačanac
Committee memberTihomir Moslavac
Committee memberStela Jokić
Committee memberJurislav Babić
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
(Department of Food Technologies)
(Sub-department of Food Engineering)
Osijek
Defense date and country2015-12-21, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Engineering
Abstract
U ovom radu ispitan je utjecaj procesnih parametara hladnog prešanja sjemenki chie (Salvia hispanica L.) na iskorištenje ulja. Ispitan je utjecaj temperature zagrijavanja glave preše, veličine otvora glave preše, frekvencije elektromotora i dotegnutosti glave preše na iskorištenje i kvalitetu hladno prešanog ulja chie. U proizvedenom hladno prešanom ulju chie odredili su se sljedeći parametri kvalitete: peroksidni broj, slobodne masne kiseline, voda, netopljive nečistoće, anisidinski broj,... More totox broj, jodni broj i saponifikacijski broj. Također, ispitan je i utjecaj dodatka prirodnih antioksidanasa (ekstrakt ružmarina tip Oxy´Less®CS, ekstrakt zelenog čaja, ekstrakt crnog kima, ekstrakt klinčića, eterično ulje konopljike) na oksidacijsku stabilnost hladno prešanog ulja chie. Određivanje oksidacijske stabilnosti ulja, sa i bez dodanog prirodnog antioksidansa, provedeno je testom ubrzane oksidacije ulja – Rancimat testom. Rezultat oksidacije ulja izražen je indukcijskim periodom (IP). Rezultati istraživanja pokazali su da ispitivani procesni parametri hladnog prešanja utječu na iskorištenje ulja. Vede iskorištenje ulja chie dobiveno je kod zagrijavanja glave preše 100 °C, otvora glave preše 8 mm, frekvencije elektromotora 25 Hz i dotegnutosti glave preše ½ kruga. Dodatkom prirodnog antioksidansa ekstrakta ružmarina (Oxy´Less®CS) i ekstrakta zelenog čaja, koncentracije 0,15%, postignut je porast stabilnosti ulja prema oksidacijskom kvarenju. Less
Abstract (english)
In this thesis, the influence of process parameters cold pressing chia seeds (Salvia hispanica L.) on the yield of oil was tested. The influence of temperature head presses, nozzle size, electromotor frequency and tension head presses on the yield and quality of cold pressed chia seed oil was examined. In the produced cold pressed chia seed oil the following quality parameters were determined: peroxide value, free fatty acids, moisture content, insoluble impurities, anisidine value, totox... More value, iodine value and saponification value. Also, the influence of the natural antioxidant supplements (rosemary extract type Oxy´Less®CS, green tea extract, extract of black cumin, clove extract, chaste berries essential oil) on the oxidative stability of cold pressed chia seed oil were examined. Determination of the oxidative stability of the oil, with and without added natural antioxidants, has been validated by the test of accelerated oxidation of oil – Rancimat test. The result of oil oxidation was expressed as induction period (IP). The results showed that the studied process parameters of the cold pressing also affect the yield of oil. Greater yield of chia seed oil is obtained at temperature of 100 oC, nozzle of ID 8 mm, frequency of 25 Hz and tension of ½ of the circle. With the addition of the natural antioxidant supplements of rosemary extract type Oxy´Less®CS and green tea extract (0,15% concentration), it is proven to achieve oxidative stability of the oil. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:109:036684
Study programmeTitle: Food Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka prehrambenog inženjerstva (magistar/magistra inženjer/inženjerka prehrambenog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2015-12-22 13:18:59
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