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Vpliv toplotne obdelave in K-sorbata na preživelost kvasovk Zygosaccharomyces bailii v jagodnem prelivu : diplomska naloga = Effect of heat treatment and K-sorbate on survival of yeasts Zygosaccharomyces bailii in strawberry dressing : graduation thesisKrč, JernejaV sadnem izdelku, jagodnem prelivu z visoko vsebnostjo suhe snovi in nizko pH vrednostjo, je bila določena toplotna odpornost testnih mikroorganizmov-ozmotolerantnih kvasovk Zygosaccharomzces bailii. ... Toplotna odpornost je določena: a) s kinetiko odmiranja kvasovk v izdelku med 13-dnevno inkubacijo po različnih režimih pasterizacije (T = 60, 70, 75, 80ŚC, t = 0, 5, 10, 15, 20, 25, 30 minut), b) z grafično določitvijo D-vrednosti iz krivulj preživetja (log CFU/ml v odvisnosti od časa pasterizacije), c) z grafično določitvijo z-vrednosti iz krivulj TDT (log D v odvisnosti od temperature pasterizacije), d) z določitvijo MPET3D kot praktično uporabnih časov pasterizacije pri različnih temperaturah in sestavi izdelka. D-vrednosti za jagodni preliv z 0,09 % K-sorbata so D60 = 13,0, D70 = 1,1, D75 = 0,8 minut, z-vrednost je 11,4ŚC, za izdelek brez dodatka konzervansa pa so D60 = 12,7, D70 = 2,6, D75 = 1,9 in D80 = 1,3 minute, z-vrednost je 20,0ŚC. Rezultati so uporabni za optimalizacijo pasterizacijskega postopka v proizvodnji jagodnega preliva.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [BF, Oddelek za živilstvo] : [J.Krč], 1999Language - slovenianCOBISS.SI-ID - 2327416
Author
Krč, Jerneja
Other authors
Smole Možina, Sonja |
Raspor, Peter
Topics
konzerviranje živil |
sadni izdelki |
jagodni preliv |
toplotna obdelava |
konzervansi |
K-sorbat |
kvasovke |
preživetje kvasovk |
Zygosaccharomyces bailii |
Zygosaccharomyces bailii |
food preservation |
fruit products |
strawberry dressing |
heat treatment |
preservatives |
K-sorbate |
yeasts |
yeast survival |
Zygosaccharomyces bailii |
Zygosaccharomyces bailii
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Hodnik DN 0000000922 a IN: 0011757 Hodnik DN 922 a IN: 0011757 |
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Hodnik DN 0000000922 IN: 0011756 Hodnik DN 922 IN: 0011756 |
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Smole Možina, Sonja | 07030 |
Raspor, Peter | 04001 |
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