Zależności pomiędzy wybranymi cechami jakościowymi nasion słonecznika a ich zasiedleniem przez grzyby
Ładowanie...
Pliki
Data
2014
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie
Abstrakt
There is lack of work in which correlation between chosen qualitative features of
sunflower seeds and settled of the fungi colonies have been investigated. The study was aimed
to evaluate selective qualitative characteristics of sunflower seeds, to determine the quantitative
analysis of fungi including different media and temperature incubation and to specify the
correlation between sunflower seed's qualitative characteristics and the number of colonies of
fungi that inhabit them. Investigated material of sunflower seeds was 20 samples of seeds. The
characteristics of seeds included calculation of thousand seed weights, volumetric weight,
amount, pH of seeds, seeds moisture content, seeds water activity (aw), fat content, fat acidity,
critical moisture of seeds and hull content. Number of fungi contaminating sunflower seeds were
investigated with using different culture media (RBA, DG18, YpSs) and incubation temperatures
(25ºC, 37ºC and 45ºC). The largest number of fungi colonies was isolated when DG18 medium
was used at 25ºC. The negative correlations between volumetric weight and amount of fungi
has been revealed. The negative statistically significant correlation between pH of seeds and
amount of fungi isolated on YpSs at 37ºC was found. The positive, statistically significant
correlations between amount of fungi colonies isolated on YpSs at, respectively 37ºC and 45ºC
and water activity and humidity and fat acidity, has been revealed. Received correlations
proved, that contamination seeds by fungi may cause decrease of volumetric weight and
pH of seeds. This results demonstrated, that large colonies of fungi is directly related with
count of impurities.
Opis
Słowa kluczowe
jakość nasion, korelacje, liczebność grzybów, słonecznik, count of fungi, correlations, quality of seeds, sunflower
Cytowanie
Janda K., Markowska-Szczupak A. (2014). Zależności pomiędzy wybranymi cechami jakościowymi nasion słonecznika a ich zasiedleniem przez grzyby. Folia Pomer. Univ. Technol. Stetin., Agric., Aliment., Pisc., Zootech. 309 (29), 59-66.