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Title:
IZOLACIJA RDEČIH PIGMENTOV IZ PAPRIKE S PLINI VISOKE GOSTOTE
Authors:
ID
Ojsteršek, Tadej
(Author)
ID
Knez, Željko
(Mentor)
More about this mentor...
ID
Škerget, Mojca
(Comentor)
Files:
UNI_Ojstersek_Tadej_2014.pdf
(2,21 MB)
MD5: 5AD3BC85D785B8AB73D325932EE2CE02
Language:
Slovenian
Work type:
Bachelor thesis/paper
Typology:
2.11 - Undergraduate Thesis
Organization:
FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:
Diplomsko delo prikazuje različne ekstrakcijske metode, s katerimi smo ekstrahirali pigmente iz rdeče čili paprike. Kot topili smo uporabili superkritični CO2 in subkritični propan. Ekstrakcije so potekale pri različnih temperaturah in tlakih, prav tako pa smo za primerjavo izvedli še ekstrakcijo s Soxhletovim aparatom, pri kateri smo kot topilo uporabili petroleter. Velikost zmletih delcev semen in rastlinskega tkiva smo določili s sejalno analizo. Z UV-VIS spektrofotometrom smo pripravljenim vzorcem določili absorbanco ter nato izračunali barvno intenziteto dobljenih ekstraktov po CU (Colour Unit) vrednosti. Rezultati kažejo, da je najprimernejša metoda za izolacijo pigmentov iz paprike superkritična ekstrakcija s CO2, za izolacijo kapsaicina pa ekstrakcija s subkritičnim propanom.
Keywords:
ekstrakcije
,
superkritični fluidi
,
Soxhletov aparat
,
sejalna analiza
,
UV-VIS spektrofotometrija
Place of publishing:
Maribor
Publisher:
[T. Ojsteršek]
Year of publishing:
2014
PID:
20.500.12556/DKUM-46157
UDC:
612.015.4:664.521(043.2)
COBISS.SI-ID:
18221078
NUK URN:
URN:SI:UM:DK:FKPHOHQQ
Publication date in DKUM:
22.09.2014
Views:
2401
Downloads:
386
Metadata:
Categories:
KTFMB - FKKT
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:
OJSTERŠEK, Tadej, 2014,
IZOLACIJA RDEČIH PIGMENTOV IZ PAPRIKE S PLINI VISOKE GOSTOTE
[online]. Bachelor’s thesis. Maribor : T. Ojsteršek. [Accessed 10 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=46157
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Secondary language
Language:
English
Title:
ISOLATION OF RED PIGMENTS FROM CHILI PEPPER WITH HIGH-DENSITY GASES
Abstract:
In this thesis, different extraction methods, with which the pigments from red chili pepper were extracted, are presented. Supercritical carbon dioxide and subcritical propane were used as solvents. Extractions were performed on different temperature and pressure conditions. For comparision, the extraction with Soxhlet extractor, where petroleum ether was used as a solvent, was also performed. Sieve analysis of ground material was performed in order to define the size of the particles of the raw material in seeds and plant tissue. Additionally, the UV-VIS spectrophotometry was performed in order to measure absorbance with which the colour intensity in CU (Color Unit) values was calculated. The results show that the supercritical extraction with carbon dioxide is the most suitable method to isolate pigments and the extraction with subcritical propane is the most suitable method to isolate capsaicin from red chili pepper.
Keywords:
extractions
,
supercritical fluids
,
Soxhlet extractor
,
sieve analysis
,
UV-VIS spectrophotometry
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