BF, Dept. of Food Science and Technology, Lj. (BFZIV)
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Spremembe vsebnosti prolina in prostega [alfa]-aminokislinskega dušika med dozorevanjem grozdja : diplomska naloga = Changes in content of proline and free [alpha]-amino acid nitrogen during grape ripening : graduation thesisVanzo, AndrejaV vinorodni deželi Podravje sem spremljala vsebnost prolina in prostega a-aminokislinskega dušika (FAN) med dozorevanjem grozdja šestnajstih sort letnika 1998. Za primerjavo sem določila tudi ... vsebnost prolina in FAN pri istih šestnajstih sortah letnika 1999 ob času trgatve. Opravila sem spektrofotometrične analize vzorcev, ki so bili vzorčeni v tedenskih presledkih od 19.08. 1998 do trgatve. Poleg tega sem želela ugotoviti, če imajo kvasovke na razpolago dovolj dušika za nemoteno fermentacijo. Pri vseh sortah med dozorevanjem grozdja vsebnosti prolina in FAN naraščata. Koncentracija prolina ob času trgatve se je gibala med 100 mg/l (Renski rizling) in 800 mg/l (Chardonnay), pri večini ostalih sort so se vrednosti nahajale med 200 in 400 mg/l. Koncentracija FAN je bila ob času trgatve med 40mg N/l (Rumeni muškat) in 250 mg N/l (Sivi pinot). Večina sort je imela koncentracijo FAN med 100 in 150 mg N/l. Primerjava istih sort letnika 1999 z letnikom 1998 ob času trgatve kaže, da bistvenih razlik med obema letnikoma v vsebnosti prolina in FAN ni. V obeh letnikih je bila vsebnost prolina in FAN precej nizka, kar kaže na nujnost dohranjevanja kvasovk z dušikovimi snovmi.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [BF, Oddelek za živilstvo] : [A.Vanzo], 2000Language - slovenianCOBISS.SI-ID - 2397048
Author
Vanzo, Andreja
Other authors
Hribar, Janez, 1947- |
Korošec-Koruza, Zora
Topics
grozdje |
zorenje grozdja |
vinorodna dežela Podravje |
prolin |
FAN |
FAN |
grapes |
grape ripening |
Podravje wine region |
proline |
FAN |
FAN
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BF, Dept. of Food Science and Technology, Lj. |
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Hodnik DN 0000000943 a IN: 0012175 Hodnik DN 943 a IN: 0012175 |
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Hodnik DN 0000000943 IN: 0012174 Hodnik DN 943 IN: 0012174 |
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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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Hribar, Janez, 1947- | 00927 |
Korošec-Koruza, Zora | 03160 |
Source: Personal bibliographies
and: SICRIS
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