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- Title
Proximate composition analysis posterior to the cryopreservation of Chaetoceros calcitrans.
- Authors
Salas-Leiva, Joan; Enrique Dupré M.; Salas-Leiva, Dayana
- Abstract
Objective. The effect of cryopreservation on the proximate composition of microalgae Chaetoceros calcitrans was evaluated. Materials and methods. C. calcitrans was cultured and cryopreserved using 5% (v/v) dimethylsulfoxide as cryoprotectant. The freezing was controlled at a rate of 3°C/min, up to -60°C and then the microalgae were immersed in liquid nitrogen (-196°C). After storage in liquid nitrogen, microalgae were rapidly thawed out and subcultured. The percentage of proteins, lipids and carbohydrates was analyzed using absorption spectrophotometry and the organic matter was studied by gravimetric analysis. Results. There was no significant variation between the proximate composition of C. calcitrans cryopreserved and the controls (p>0.05). Conclusion. Our results show that, despite low cell recovery after the preservation of this organism at low temperatures, there is no apparent loss of nutritional characteristics caused by the storing process at low temperatures.
- Subjects
MICROALGAE; CRYOPRESERVATION of organs, tissues, etc.; LIQUID nitrogen; PRESERVATION of organs, tissues, etc.; ALGAE
- Publication
Revista MVZ Córdoba, 2016, Vol 21, Issue 1, p5258
- ISSN
0122-0268
- Publication type
Article
- DOI
10.21897/rmvz.35