اخبار و اعلانات

 آمار

تعداد نشریات283
تعداد نشریات سازمان81
تعداد شماره‌ها2,729
تعداد مقالات31,081
تعداد مشاهده مقاله29,019,187
تعداد دریافت فایل اصل مقاله16,333,275
Etesami, Ehsan, Jorjani, Sarah, Noroozi, Mostafa. (1400). Improvement of Thalassiosira weissflogii as high valuable nutritional feed. سامانه مدیریت نشریات علمی, 21(1), 15-32. doi: 10.22092/ijfs.2022.125835
Ehsan Etesami; Sarah Jorjani; Mostafa Noroozi. "Improvement of Thalassiosira weissflogii as high valuable nutritional feed". سامانه مدیریت نشریات علمی, 21, 1, 1400, 15-32. doi: 10.22092/ijfs.2022.125835
Etesami, Ehsan, Jorjani, Sarah, Noroozi, Mostafa. (1400). 'Improvement of Thalassiosira weissflogii as high valuable nutritional feed', سامانه مدیریت نشریات علمی, 21(1), pp. 15-32. doi: 10.22092/ijfs.2022.125835
Etesami, Ehsan, Jorjani, Sarah, Noroozi, Mostafa. Improvement of Thalassiosira weissflogii as high valuable nutritional feed. سامانه مدیریت نشریات علمی, 1400; 21(1): 15-32. doi: 10.22092/ijfs.2022.125835

Improvement of Thalassiosira weissflogii as high valuable nutritional feed

Iranian Journal of Fisheries Sciences
دوره 21، شماره 1، فروردین 2022، صفحه 15-32    اصل مقاله (636.82 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22092/ijfs.2022.125835
نویسندگان
Ehsan Etesami* 1؛ Sarah Jorjani2؛ Mostafa Noroozi3
1Alborz Rahbar Biotechnology Company
2Department of Environmental Engineering, Faculty of Biological Sciences, Baharan Higher Education Institute, Gorgan, Iran.
3Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran.
چکیده
Recently, the rising demand for high-quality seafood has created a fresh look at the sustained and adequate aquafeed as a necessity. Considering the potential of microalgae cells, many companies are looking for practical methods to enhance the nutritional content of these microorganisms as valuable aquafeed. In this attempt, Thalassiosira weissflogii isolated from the Caspian Sea and identified with morphology and molecular characteristics. In order to improve lipid content, this strain was cultivated in normal and nitrogen deficiency F/2 medium for 18 and 30 days. The growth indices, total lipid, fatty acids profiles were measured in both cases.
Growth of T. weissflogii during nitrogen deficiency conditions was associated with a sharp decline in cell growth and significant rise in lipid production such as polyunsaturated fatty acids (PUFAs). Although the eicosapentaenoic acid (EPA) level was reduced by half under nitrogen deficiency condition (8.8 to 3.23 % TFA), the amount of docosahexaenoic acid (DHA) escalated during this situation (3.5 to 12.63 % TFA). Results showed that the concept of N-deficiency conditions along with prolonged culturing could improve PUFA n-3 content to provide highly valuable feed for shellfish and shrimp industries.
کلیدواژه‌ها
Aquafeed؛ Thalassiosira weissflogii؛ nitrogen deficiency؛ EPA؛ DHA
آمار
تعداد مشاهده مقاله: 302
تعداد دریافت فایل اصل مقاله: 198


counter
سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب