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- MakaleAçık Erişim2022Scopus SJRQ3The Effects of Probiotic-Prebiotic on the Biomass and Protein Content of Spirulina platensis in Different Temperatures and Illuminations
Seyhaneyıldız Can, Şafak; Seyhaneyıldız, Elif; Dörücü, Mustafa
The blue-green algae Spirulina platensis Geitler 1925 has been used by people since ancient times due to its high protein content. This study was conducted to determine the effect of a Probiotic-Prebiotic (P-P) product, which contains Bifidobacterium infantis, Bifidobacterium thermophilum, Leuconostoc mesenteroides as probiotic bacteria, and beta-glucan and oligosaccharide as a prebiotic mixture on S. platensis. In the study, four groups were one of which was a control. In this study, we investigated whether the P-P product contributed to the biomass development and protein production of S. platensis under different temperatures and lighting conditions. In terms of biomass, the P-P product gave different responses at different temperatures and light intensities, but its results were positive in all groups in terms of protein ratio. The most positive effect on biomass and protein content was in the group where 0.1 ml/L P-P product was added, at 40°C and 3200 lux with 68.71% protein content and an average OD of 0.727.
AtıfScopus5WoS5OpenAlex5
İncele - MakaleYalnız künye2017Scopus SJRQ2Effect of temperature and nitrogen concentration on the growth and lipid content of Spirulina platensis and biodiesel production
Seyhaneyildiz Can, Safak; Koru, Edis; Cirik, Semra
In this study, Spirulina platensis (Cyanophyceae) was cultured at five mediums with different amounts of sodium nitrate and three different temperatures. The study was conducted at 1600 lx light intensity and a pH value of 9. The influences of nitrate amounts and temperature on biomass growth and lipid amount were studied during 20 days. The best biomass growth (1.039 ± 0.668 g L−1 dry weight and 0.780 ± 0.501 optical density) for S. platensis was obtained from the group with the temperature value of 35 °C and 2.5 g L−1 of sodium nitrate. The highest lipid production (4.70 ± 0.067% dry weight) was in the nitrate-free medium at 15 °C. The best results for biomass growth and lipid production were obtained from the group at 35 °C and 1.25 g L−1 of sodium nitrate (P < 0.05). At the end of the study, it was determined that algal biomass increased with increasing the nitrate amount but the produced lipid by the algae decreased. Intensive production was performed in accordance with the culture conditions of the most productive groups and biodiesel was obtained from the algae. The density, viscosity, and flash point of the biodiesel were calculated as 0.78, 4.67, and 107 °C, respectively.
AtıfScopus34WoS27OpenAlex35İncele - MakaleAçık Erişim2011Effects of Training on Womans Who Have High Risk in Terms of Indoor Environmental Air Pollution
Karatay, Gulnaz; Akkus, Yeliz
Aim: This study was conducted to determine the effects of training on women who have high risk in terms of indoor environmental air pollution in Kars. Methods: This study was planned as an intervention study and the data was collected between March 10, 2010 to March 10, 2011. The study was performed on 80 women who were trained by six visits made once in every other week at their home. Data were collected with socio-demographic form, health status information form, environmental tobacco exposure form, information form on dried cow dung usage and awareness of women, St. George Respiratory Questionnaire. Results: After the intervention, it was seen that knowledge level of women about use of dried cow dung was increased dramatically. The St. George Respiratory Questionnaire scores of these women at were 2.40 point lower in positive aspect, but the difference wasn't statistically significant. At the beginning 94.7% and after the study 72.4% of women have declared environmental smoke exposure. Conculation: After the study, it was seen that knowledge level of women about dried cow dung usage and it's harm to health as well as their efforts to improve respiratory system health were increased.