Ekstrakcija olj iz semen industrijske konoplje in karakterizacija biološko aktivnih komponent

magistrsko delo

Sara Karlovšek (Author), Maša Knez Hrnčič (Mentor), Taja Žitek (Co-mentor)

Abstract

Konopljino olje je zelo cenjen proizvod, saj vsebuje esencialne aminokisline in visoke deleže (več kot 80%) polinenasičenih maščobnih kislin (PUFA). Razmerje γ-linolenske kisline (omega 6) in α -linolenske kisline (omega 3) v konopljinem olju se giblje med 2,1 in 3,1. Poleg tega konopljino olje vsebuje tudi stearinsko kislino, terpenoide in druge biološko zanimive komponente. Iz konopljinih semen smo s pomočjo konvencionalnih metod (ekstrakcija po Soxhletu, hladna maceracija, hladno stiskanje) in nekonvencionalnih metod (ekstrakcija z ultrazvokom, superkritična ekstrakcija) pridobili različne ekstrakte in jim določili totalne fenole, antioksidativni potencial in vsebnost maščobnih kislin z GC-MS. Predvsem smo se posvetili omega 3 in omega 6 maščobnim kislinam, kjer nas je zanimala njihova vsebnost v ekstraktih in organogelih. Hkrati smo primerjali sestavo maščobnih kislih svežih ter staranih ekstraktov in organogelov. Rezultati kažejo, da smo uspešno izolirali želene komponente iz konopljinega semena. Ekstrakti in organogeli so vsebovali od 48 do 70% maščobnih kislin. Razmerja med linolno in linolensko kislino pa so bila med 2,65 in 2,8. S tvorjenjem organogelov pa smo uspešno zamrežili maščobne kisline in upočasnili njihovo razpadanje ter dosegli kontrolirano hitrost sproščanja.

Keywords

konopljina semena;konopljino olje;organogel;maščobne kisline;totalni fenoli;antioksidativna aktivnost;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.09 - Master's Thesis
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[S. Karlovšek]
UDC:	543.635.3:633.522(043.2)
COBISS:	165927939
Views:	35
Downloads:	0
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Hemp seeds extraction and characterisation of biological component
Secondary abstract:	Hemp oil is a highly valued product, as it contains essential amino acids and high proportions (more than 80%) of polyunsaturated fatty acids (PUFA). The ratio of γ-linolenic acid (ω-6) and α-linolenic acid (ω-3) in hemp oil ranges from 2.1 to 3.1. In addition, hemp oil also contains stearic acid, terpenoids and other biologically interesting components. Using conventional methods (ultrasound extraction, Soxhlet extraction, cold maceration), non-conventional methods (supercritical extraction, cold-pressed oil), we are obtain various extracts from hemp seeds and determine their total phenols, antioxidant activity and the content of various fatty acids by GC-MS. In particular, we are focus on omega 3 and omega 6 fatty acids, where we are interested in their content in extracts and organogels. At the same time, we compare the composition of fresh and aged fatty acid extracts and organogels. The results show that we have successfully isolated biocomponents from hemp seeds. Extracts and organogels contained from 48 to 70% fatty acids. The ratios between linoleic and linolenic acids ranged between 2.65 and 2.8. By forming organogels, fatty acids were successfully cross-linked and their decomposition and solubility rate has been controlled
Secondary keywords:	hemp seeds;hemp oil;organogel;fatty acids;total phenols;antioxidant activity;
Type (COBISS):	Master's thesis/paper
Embargo end date (OpenAIRE):	2026-09-01
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	1 spletni vir (1 datoteka PDF (XI, 49 f.))
ID:	19812144