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Vpliv osončenosti na vsebnost sladkorjev in kislin v smrekovih vršičkih [Elektronski vir] : magistrsko deloSodin, KristinaVršički navadne smreke so bogat vir vitamina C, vsebujejo mineralne snovi, polifenole in terpene. Njihova vsebnost je odvisna od razpoložljivosti hranil v tleh, starosti iglic in dreves, položaja ... iglic znotraj krošnje in letnega časa. Namen magistrske naloge je bil preučiti vpliv osončenosti na koncentracijo organskih kislin in sladkorjev v vršičkih navadne smreke in sirupu iz smrekovih vršičkov. Vršičke smo nabrali na Sv. Treh Kraljih na Pohorju. Vsebnost organskih kislin in sladkorjev smo določili s tekočinsko kromatografijo visoke ločljivosti (HPLC) v povezavi z PDA in RI detektorjem. V smrekovih vršičkih je prevladovala kininska kislina s povprečno vsebnostjo 196 mg/g suhe snovi (SS). Po vsebnosti so ji sledile šikimska, citronska in jabolčna kislina. Med sladkorji je prevladovala saharoza, glukoze je bilo manj, fruktoza je bila pod mejo določljivosti. Osončenost na vsebnost organskih kislin in sladkorjev v vršičkih ni imela značilnega vpliva. Med vsebnostjo kislin oziroma sladkorjev v smrekovih vršičkih in v sirupu ni bilo statistično značilne korelacijeType of material - master's thesis ; adult, seriousPublication and manufacture - Maribor : [K. Sodin], 2023Language - slovenianCOBISS.SI-ID - 144293123
Author
Sodin, Kristina
Other authors
Kristl, Janja |
Sem, Vilma
Topics
Univerzitetna in visokošolska dela |
navadna smreka |
(Picea abies (L.) Karst) |
kisline |
sladkorji |
vršički |
sirup |
osončenost |
Norway spruce |
(Picea abies (L.) Karst) |
acids |
sugars |
tips |
syrup |
insolation
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Sodin, Kristina | ![]() |
Kristl, Janja | 17004 |
Sem, Vilma | 32615 |
Source: Personal bibliographies
and: SICRIS
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