Microalgae

The study on coral reef fish species composition in the coastal areas of North Hai Van - Son Cha, Thua Thien Hue province was carried out in the period from January, 2020 to October, 2022 at 4 sites, namely Bai Ca, Bai Chuoi, Sung Rau Cau, Son Cha island to update scientific data to contribute to establishing the marine reserve.

11p viyoko 01-10-2024 2 1   Download

Harvesting microalgae by centrifugation and filtration is very costly, affecting technical and economical feasibility of downstream processing of algal biomas to bioproducts. Flocculation is a potential technique for recovery of algae biomass. Particularly, flocculation using magnetic nanoparticles offers high separation efficiency due to their high surface area and magnetic properties. I

10p dianmotminh02 03-05-2024 5 1   Download

In conclusion, symbiotic algae tend to be species-specific, whereas bacteria fluctuate significantly over sampling time. Studying the molecular issues of microalgae, the presence, the role of some groups of bacteria involved in the N, C, P, and S cycles, and the influence of environmental parameters should also be encouraged to understand the relationship of coral holobiont better.

12p vipagani 24-10-2022 8 3   Download

In the present study, to evaluate a microalga’s responses to a macronutrient’s limitation and the excess to a micronutrient, we acclimated the well-distributed freshwater microalga Ankistrodesmus densus to N- or P-limited medium before exposing it to sublethal copper (Cu) concentrations.

6p thebadguys 15-01-2022 7 0   Download

Pig farming generates highly polluting wastewaters which entail serious environmental issues when not adequately managed. Microalgae systems can be promising for cost, energy and environment-efficient treatment of piggery wastewater (PWW). Aside from clean water, the produced biomass can be used as biostimulants and biopesticides contributing to a more sustainable agriculture.

9p thebadguys 15-01-2022 11 0   Download

Research objectives of the thesis: Determining suitable conditions for squalene extraction and purification from selectable S. mangrovei PQ6 strain; evaluating the safety and pharmacological/biological effects of extracted squalene oriented as feed stock for human health food, cosmetics and pharmaceuticals.

27p extraenglish 24-05-2021 22 4   Download

Determining suitable conditions for squalene extraction and purification from selectable S. mangrovei PQ6 strain; evaluating the safety and pharmacological/biological effects of extracted squalene oriented as feed stock for human health food, cosmetics and pharmaceuticals.

27p capheviahe27 23-02-2021 26 4   Download

A Chaetoceros strain was successfully isolated to a unialgal state from Giao Thuy mangrove and identified to be of Chaetoceros muelleri species based on morphological properties and 18S rDNA sequence analysis. ASW medium together with 250/00 of salinity was found to be best suitable for the growth of this strain and was applied to its biomass production.

8p larachdumlanat127 20-12-2020 12 3   Download

Diatoms are predominant in marine water and considered to be the most important primary producers in sustaining marine food chains. Three diatom strains were successfully isolated from Giao Thuy mangrove water of the Red River Delta Biosphere Reserve.

7p larachdumlanat127 20-12-2020 13 2   Download

The strain S. deserticola can grow well heterotrophically without light and maximum algal biomass was 11,22 g/l after cultivation of 14 days. Highest lipid content under heterotrophic growth was 52,58%, which was about 2,4 times that in photoautotrophic cultivation.

10p slimzslimz 08-12-2019 24 2   Download

The bioflocculation efficiency was depended on the pH, carbon sources, the initial algae concentrations, bacteria strains, and the inital bioflocculant-producing bacteria concentrations. The temperature lightly affected the bioflocculation, no noticeable behavioral or activity changes were observed in mice that were orally administrated with four bacterial strains, and no treatment-related illness or death occurred after 72 hours.

13p shiwo_ding7 05-06-2019 19 3   Download

Recently, several strains of microalgae have been studied as they contain high lipid content capable to be converted to biodiesel. Fresh water microalgae Chlorella vulgaris studied in this research was one of the proof as it contained high triacyl glyceride which made it a potential candidate for biodiesel production. Factors responsible for good growing of microalgae such as CO2 and nitrogen concentration were investigated. It was found that total lipid content was increased after exposing to media with not enough nitrogen concentration.

5p vannhat_xq 26-04-2013 66 3   Download

Analysis of a draft nuclear genome sequence of the diatomThalassiosira pseudonana revealed the presence of 11 open reading frames showing significant similarity to functionally characterized fatty acid front-end desaturases. The corresponding genes occupy discrete chromosomal loca-tions as determined by comparison with the recently published genome sequence. Phylogenetic analysis showed that two of the T. pseudonana desaturase (Tpdes) sequences grouped with proteobacterial desaturases that lack a fused cytochrome b5 domain. ...

12p fptmusic 11-04-2013 32 2   Download

Vi tảo (microalgae) có thể xếp là các thực vật thủy sinh – sinh vật tự dưỡng (có khả năng quang hợp) – nhưng lại có khả năng phát triển với tốc độ của vi sinh vật (cao gấp 100 lần thực vật trên cạn) (Có thể sản sinh 96g protein/m2/ngày Đậu nành: 1-1,5 g protein/m2/ngày) có tiềm năng khai thác ở qui mô công nghiệp.

89p lalan38 29-03-2013 278 58   Download

Vi tảo (Microalgae) là những thực vật bậc thấp, có khả năng quang tự dưỡng. Chúng có cấu trúc hết sức đa dạng: đơn bào, đa bào hay tập đoàn sống chủ yếu ở nước và phân biệt với nhau bởi các chất màu (diệp lục tố, các sắc tố) và các chất dự trữ. Đó chính là dấu hiệu hoá học để nhận biết trực tiếp bằng mắt thường hay dưới kính hiển vi quang học.

8p thy_ht 23-02-2012 66 5   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Fatty acid profiles and their distribution patterns in microalgae: a comprehensive analysis of more than 2000 strains from the SAG culture collection

16p panasonic02 14-12-2011 46 3   Download

Microorganisms are single-celled organisms are small, not observed with the naked eye but to use a microscope. The term microbial does not correspond to any taxon in scientific classification. It includes viruses, bacteria, archaea, fungi, microscopic algae, protozoa. Etc.

12p phalinh14 07-08-2011 68 7   Download

Vi tảo (Microalgae) là tất cả các tảo (Algae) có kích thước hiển vi. Muốn quan sát chúng phải sử dụng tới kính hiển vi.Trong số khoảng 50 000 loài tảo trên thế giới thì vi tảo chiếm đến khoảng 2/3. Năm 1969 R.H. Whitake đưa ra hệ thống phân loại 5 giới, trong đó toàn bộ Tảo được xếp trong giới Nguyên sinh. Sau khi đề xuất việc phân chia sinh giới thành 3 lĩnh giới (domain) Carl R. Woese đề xuất hệ thống phân loại 6 giới ( Vi khuẩn, Cổ khuẩn, Nguyên sinh, Nấm, Thực vật,...

7p duagangdamsua 28-05-2011 162 33   Download

The object of aquaculture is not the same requirements for the size of food at an early stage larvae. rotifer is a live feed after the first important microalgae for them. rotifer but sometimes can not be used for some species of fish larvae that have a small mouth size. So rotifer size is the same in all species, and size change within the lifetime of them?

25p thanhxuan48ntu 15-04-2011 156 28   Download

Scenedesmus was one of the microalgae belonging to Chlorophyta. It can be used as living food for aquaculture. This study was carried out to isolate it from aqua pond water and find out the suitable media for their growth. Dilution method was easier but needed longer time for isolating.

4p quocnamdhnl 05-12-2010 164 21   Download