| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document

Title:SINTEZA SAHAROZA PALMITATA V ORGANSKIH TOPILIH
Authors:Bahlen, Maja (Author)
Leitgeb, Maja (Mentor) More about this mentor... New window
Primožič, Mateja (Co-mentor)
Files:.pdf UNI_Bahlen_Maja_2011.pdf (2,21 MB)
 
Language:Slovenian
Work type:Undergraduate thesis (m5)
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Namen diplomskega dela je bil sintetizirati saharozo palmitat, ki se uporablja v kozmetični, farmacevtski in prehrambeni industriji. Osredotočili smo se na sintezo saharoza palmitata v t-butanolu, vendar smo za primerjavo izvedli tudi sinteze v drugih organskih topilih, kot so etil metil keton, aceton in tert-amil alkohol. Encimsko katalizirano sintezo saharoza palmitata smo izvedli v mešalnem šaržnem reaktorju pri temperaturi 60 °C. Reakcijo smo katalizirali z imobilizirano lipazo B iz Candida antarctica. Produkt reakcije je bil saharoza mono-, di- in tri-palmitat. Reakcije smo izvedli z različnimi množinskimi razmerji substratov (palmitinska kislina : saharoza). Najvišjo presnovo smo dobili v primeru, ko je bilo množinsko razmerje substratov (palmitinska kislina : saharoza) 10 : 90.
Keywords:encimsko katalizirana sinteza, lipaza B iz Candida antarctica, saharoza palmitat, organska topila, t-butanol
Year of publishing:2011
Publisher:[M. Bahlen]
Source:Maribor
UDC:577.15:547.458.2(043.2)
COBISS_ID:15835158 Link is opened in a new window
NUK URN:URN:SI:UM:DK:AZQJVZX5
Views:2528
Downloads:86
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FKKT
:
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Secondary language

Language:English
Title:SYNTHESIS OF SUCROSE PALMITATE IN ORGANIC SOLVENTS
Abstract:The purpose of this study was to synthesize sucrose palmitate used in cosmetics, pharmaceutical and food industries. Our focus was mainly on the synthesis of sucrose palmitate in tert-butanol. For comparison the synthesis of sucrose palmitate in other organic solvents like ethyl methyl ketone, acetone and tert-amil alcohol were also carried out. Enzyme catalyzed synthesis of sucrose palmitate was carried out at 60 °C in a batch stirred reactor. Reactions were catalyzed by immobilized lipase B from Candida antarctica. Product was sucrose mono-, di- and three-palmitate. Reactions were carried out with different molar ratio of substrates (palmitic acid : sucrose). The highest conversion was obtained when molar ratio of substrates was (palmitic acid : sucrose) 10 : 90.
Keywords:enzymatic synthesis, lipase B from Candida antarctica, sucrose palmitate, organic solvents, t-butanol


Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica