STUDIEREA PROCESULUI DE CREŞTERE A ALGEI CIANOFITE CALOTHRIXSP. CULTIVATE PE MEDIUL NUTRITIV LICHID BG-11
Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
CEP USM
Abstract
Prezenta cercetare este axată pe analiza procesului de creştere a algei cianofite
Calothrix sp.cultivate pe mediul nutritiv lichid BG-11. Cultivarea algei Calothrix sp.
pe mediul nutritiv BG-11 permite obţinerea a 2,38±0,11 g/l de biomasă algală
timp de 12 zile de cultivare. Cele mai înalte valori privind creşterea zilnică
a biomasei, viteza de reproducere,coeficientul de reproducere şi viteza
de creştere a populaţiei algale de Calothrix sp.se atestă în intervalul de la
prima la a 12-a zi de cultivare, iar la a 15-a zi de cultivare rezultatele acestor indicatori se reduc considerabil . De la a 3-a zi şi până la a 12-a zi de cultivare se desfăşoară faza de creştere liniară, iar la a 15-a zi se atestă faza de declin al creşterii.
The present research is focused on the analysis of the blue-green alga Calothrix sp.growth process cultivated on BG-11 liquid nutrient medium. Cultivation of Calothrix sp. on BG- 11 allows to obtain 2,38 ± 0,11 g/l of algal biomass during 12 days. The highest values of the daily growth of the biomass, the rate of reproduction, reproduction coefficient and the growth rate of the Calothrix sp. algal population, is found in the range from 1 to the 12th day of cultivation, but on the 15th day of cultivation the results of these indicators are significantly reduced. From the 3rd day to the 12th day of cultivation linear growth phase are carried out, and to 15th day is observed the decline growth stage.
The present research is focused on the analysis of the blue-green alga Calothrix sp.growth process cultivated on BG-11 liquid nutrient medium. Cultivation of Calothrix sp. on BG- 11 allows to obtain 2,38 ± 0,11 g/l of algal biomass during 12 days. The highest values of the daily growth of the biomass, the rate of reproduction, reproduction coefficient and the growth rate of the Calothrix sp. algal population, is found in the range from 1 to the 12th day of cultivation, but on the 15th day of cultivation the results of these indicators are significantly reduced. From the 3rd day to the 12th day of cultivation linear growth phase are carried out, and to 15th day is observed the decline growth stage.
Description
Keywords
biomasă algală, coeficient de reproducere, rate of reproduction, reproduction coefficient, growth rate of the algal population, algal biomass
Citation
DOBROJAN, S. Studierea procesului de creştere a algei cianofite Calothrix SP. Cultivate pe mediul nutritiv lichid BG-11. In: Studia Universitatis Moldaviae. Seria științe reale și ale naturii: Biologie. Chimie. Revistă științifică. 2017, nr. 1(101), pp. 61-64. ISSN 1814-3237.