scholarly journals Углеводы как органический субстрат для микроводоросли Tisochrysis lutea (Haptophyta) в условиях лабораторной культуры

2021 ◽  
Vol 6 (4) ◽  
pp. 105-107
Author(s):  
А. В. Огнистая ◽  
Ж. В. Маркина
Keyword(s):  

Исследована возможность применения углеводов для оптимизации процесса культивирования микроводоросли Tisochrysis lutea (Haptophyta). Проанализировано влияние D-галактозы, глюкозы и сахарозы в концентрациях 100 и 200 мг·л−1 на динамику численности популяции T. lutea. Установлено, что добавление всех изученных углеводов стимулировало рост микроводоросли, однако наибольший эффект оказала сахароза в концентрации 200 мг·л−1.

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 430
Author(s):  
Claire Mayer ◽  
Léo Richard ◽  
Martine Côme ◽  
Lionel Ulmann ◽  
Hassan Nazih ◽  
...  

Long-chain polyunsaturated fatty acids n-3 series and especially docosahexaenoic acid are known to exert preventive effects on metabolic disturbances associated with obesity and decrease cardiovascular disease risk. n-3 LC-PUFAs are mainly consumed in the form of fish oil, while other sources, such as certain microalgae, may contain a high content of these fatty acids. The aim of this study was to evaluate the effects of Tisochrysis lutea (Tiso), a microalga rich in DHA, on metabolic disorders associated with obesity. Three male Wistar rat groups were submitted for eight weeks to a standard diet or high-fat and high fructose diet (HF), supplemented or not with 12% of T. lutea (HF-Tiso). The supplementation did not affect plasma alanine aminotransferase (ALAT). Bodyweight, glycemia and insulinemia decreased in HF-Tiso rats (ANOVA, p < 0.001), while total plasma cholesterol, high-density lipoprotein-cholesterol (HDL-C) increased (ANOVA, p < 0.001) without change of low-density lipoprotein-cholesterol (LDL-C) and triacylglycerol (TAG) levels. Tiso supplementation decreased fat mass and leptinemia as well as liver TAG, cholesterol and plasma tumor necrosis factor-alpha levels (ANOVA, p < 0.001) while it did not affect interleukin 6 (IL-6), IL-4 and lipopolysaccharides levels. HF-Tiso rats showed an increase of IL-10 level in abdominal adipose tissue (ANOVA, p < 0.001). In conclusion, these results indicated that DHA-rich T. lutea might be beneficial for the prevention of obesity and improvement of lipid and glucose metabolism.


2021 ◽  
Vol 325 ◽  
pp. 124725
Author(s):  
Fengzheng Gao ◽  
Marta Sá ◽  
Iago Teles Dominguez Cabanelas ◽  
René H. Wijffels ◽  
Maria J. Barbosa

Author(s):  
Michele Maglie ◽  
Costanza Baldisserotto ◽  
Alessandra Guerrini ◽  
Alessandra Sabia ◽  
Lorenzo Ferroni ◽  
...  

AbstractThe biotechnological potential of microalgae has gained considerable importance in many applied fields: biomass production for food and feed, cosmeceutical and pharmaceutical products, energy and phytoremediation. The driving force that inspires the progress in microalgae production is the need for new cultivation systems to obtain simultaneously the maximum yield, reduction of water and nutrients use, and production of economically interesting molecules, such as pigments, fatty acids and polysaccharides. We aim to test, for the first time, the co-cultivation in saline medium of Tisochrysis lutea (Haptophyta) and Nannochloropsis oculata (Ochrophyta) to obtain valuable compounds, i.e. pigments and lipids characteristic of each species, using a single culture process. Mono-cultures of each strain were used as controls. The two strains showed an increase in the concentration of chlorophylls and carotenoids in co-culture. At the end of the experiment, the fatty acid profile was analysed by gas chromatography–mass spectrometry. The lipids in the co-cultivated cell extracts were mainly attributable to N. oculata, which represented 97% of the total cells (ca. 83% of the total biomass) at the end of the experiment. Nevertheless, the ω-3 characteristic of T. lutea (DHA and SDA, absent in N. oculata) was also detectable. Although the co-cultivation of these two phylogenetically different species of microalgae did not show positive effects on the growth and on the total lipid production, however, this process resulted in a reduction of the production costs and a lower consumption of water and nutrients.


AMB Express ◽  
2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Hao Hu ◽  
Lin-Lin Ma ◽  
Xiao-Fei Shen ◽  
Jia-Yun Li ◽  
Hou-Feng Wang ◽  
...  

2020 ◽  
Vol 318 ◽  
pp. 124104 ◽  
Author(s):  
Fengzheng Gao ◽  
Iago Teles (Cabanelas, ITD) ◽  
Narcís Ferrer-Ledo ◽  
René H. Wijffels ◽  
Maria J. Barbosa

2019 ◽  
Vol 4 (1) ◽  
pp. 253-255 ◽  
Author(s):  
Alejandra B. Méndez-Leyva ◽  
Jingya Guo ◽  
Elisabeth A. Mudd ◽  
Jerry Wong ◽  
Jean-Marc Schwartz ◽  
...  

2020 ◽  
Vol 32 (6) ◽  
pp. 3933-3947 ◽  
Author(s):  
Hideaki Matsui ◽  
Modesto Melden Briones Intoy ◽  
Viliame Waqalevu ◽  
Manabu Ishikawa ◽  
Tomonari Kotani

2021 ◽  
Vol 321 ◽  
pp. 124434
Author(s):  
Fengzheng Gao ◽  
Sep Woolschot ◽  
Iago Teles Dominguez Cabanelas ◽  
René H. Wijffels ◽  
Maria J. Barbosa

2015 ◽  
Vol 28 (2) ◽  
pp. 839-847 ◽  
Author(s):  
M. del Pilar Sánchez-Saavedra ◽  
Alfonso N. Maeda-Martínez ◽  
Salvador Acosta-Galindo

2017 ◽  
Vol 27 ◽  
pp. 177-189 ◽  
Author(s):  
Fiz da Costa ◽  
Fabienne Le Grand ◽  
Claudie Quéré ◽  
Gaël Bougaran ◽  
Jean Paul Cadoret ◽  
...  

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