Browsing by Author "Fábregas, Jaime"
Now showing items 1-20 of 24
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Approach to biomass production of the marine microalga Tetraselmis suecica (kylin) butch using common garden fertilizer and soil extract as cheap nutrient supply in batch cultures
Fábregas, Jaime; Toribio, Luisa; Abalde, Julio; Cabezas, Buenaventura; Herrero, Concepción (Elsevier Applied Science Publishers, 1987)We report the possibility of an economic cultivation of the marine microalga Tetraselmis suecica, using different mixtures of a common garden fertilizer, soil extract, micronutrients and vitamins. Maximum cellular densities ... -
Biochemical composition and growth of the marine microalga Dunaliella tertiolecta (Butcher) with different ammonium nitrogen concentrations as chloride, sulphate, nitrate and carbonate.
Fábregas, Jaime; Abalde, Julio; Herrero, Concepción (Elsevier Science Publishers, 1989)Cultures of the marine microalga Dunaliella tertiolecta were grown in ammonium chloride, sulphate, nitrate and carbonate at concentrations ranging from 0.25 to 16 mg.atom N/l. Cells were harvested in the stationary phase ... -
Biomass production and biochemical composition in mass cultures of the marine microalga Isochrysis galbana Parke at varying nutrient concentrations
Fábregas, Jaime; Herrero, Concepción; Cabezas, Buenaventura; Abalde, Julio (Elsevier Science Publishers, 1986)Mass cultures of Isochrysis galbana were carried out with four nutrient concentrations ranging from 2 to 16 mM of NaNO3 and salinity 35‰. An air flow of 15 l/min maintained a CO2 transference rate sufficient to keep the ... -
Biomass production and biochemical variability of the marine microalga Dunaliella tertiolecta (Butcher) with high nutrient concentrations
Fábregas, Jaime; Herrero, Concepción; Abalde, Julio; Cabezas, Buenaventura (Elsevier Science Editors, 1986)Mass cultures of Dunaliella tertiolecta were carried out in 10-l flasks with four nutrient concentrations in order to obtain a maximum biomass production and to find out its biochemical variability. Using these cultural ... -
Changes in protein, carbohydrates and gross energy in the marine microalga Dunaliella tertiolecta (Butcher) by nitrogen concentrations as nitrate, nitrite and urea
Fábregas, Jaime; Abalde, Julio; Cabezas, Buenaventura; Herrero, Concepción (Elsevier Science Publishers, 1989)Cultures of the marine microalga Dunaliella tertiolecta were grown in nitrate, nitrite and urea at concentrations ranging from 0·25 to 16 mg atom. N/litre. Great biochemical variability has been shown in this microalga ... -
Changes in the gross chemical composition of mass cultures of the marine microalga Dunaliella tertiolecta with different aeration rates
Fábregas, Jaime; Ferrón, Lucía; Abalde, Julio; Cabezas, Buenaventura; Otero, Ana (Elsevier, 1995)The effect of different aeration rates, in the range 0–6·51 l of air min−1 l of culture−1, and CO2 supply on the biochemical composition of mass cultures of the marine microalga Dunaliella tertiolecta was studied. The ... -
Decrease in plasma cholesterol, triglycerides and CPK levels in rats fed on the marine microalga Dunaliella tertiolecta
Fábregas, Jaime; Herrero, Concepción; Parafita, Manuel; Paz, José Manuel; Cabezas, Buenaventura; Abalde, Julio (Geor Thieme Verlag, 1986)The dried marine microalga Dunaliella tertiolecta was fed to weaning albino rats for 12 days as the sole protein source at a protein level of 12% protein from casein. Plasma cholesterol, triglycerides, and CPK levels were ... -
Decrease of plasma cholesterol with the marine microalga dunaliella tertiolecta in hypercholesterolemic rats
Fábregas, Jaime; Herrero, Concepción; Gamallo, Yolanda; Otero, Ana; Paz, José Manuel; Vecino, E. (Applied Microbiology, Molecular and Cellular Biosciences Research Foundation (Japan), 1994)Female Sprague-Dawley rats, whose plasma cholesterol level had been previously increased, were fed on a diet including 22% biomass of the marine microalga Dunaliella tertiolecta. This diet was compared to two control diets, ... -
Effect of oil and dispersant on growth and chlorophyll a content of the marine microalga Tetraselmis Suecica
Herrero, Concepción; Fábregas, Jaime; Veiga, Manuel (American Society for Microbiology, 1984)[Abstract] Low hydrocarbon concentrations stimulated the growth of Tetraselmis suecica, whereas higher concentrations (200 ppm) inhibited growth. The content of chlorophyll a in this microalga was affected in a similar ... -
Growth and biochemical variability of the marine microalga Chlorella stigmatophora in batch cultures with different salinities and nutrient gradient concentration
Fábregas, Jaime; Herrero, Concepción; Cabezas, Buenaventura; Abalde, Julio (Taylor & Francis Group, 1987-03-30)[Abstract] Chlorella stigmatophora was cultured under 56 different combinations of nutrient-salinity concentrations, ranging from 1 to 64 mM NaNO3 and from 0 to 35%. salinity. Optimal growth conditions for obtaining maximum ... -
Growth of the marine microalga Tetraselmis suecica in batch cultures with different salinities and nutrient concentrations
Fábregas, Jaime; Abalde, Julio; Herrero, Concepción; Cabezas, Buenaventura; Veiga, Manuel (Elsevier Science Publishers, 1984)The marine microalga Tetraselmis suecica is known for its ability to tolerate a wide range of salt concentrations. Cultures were grown under 48 different nutrient concentration-salinity conditions, ranging from 2 to 64 mM ... -
Growth, chlorophyll α and protein of the marine microalga Isochrysis galbana in batch cultures with different salinities and high nutrient concentrations
Fábregas, Jaime; Herrero, Concepción; Abalde, Julio; Cabezas, Buenaventura (Elsevier Science Publishers, 1985)Cultures of the marine microalga Isochrysis galbana were grown under 56 different nutrient concentration-salinity conditions, ranging from 1 to 64 mM NaNO3 and from 0 to 35‰ salinity. Salinity and nutrient concentration ... -
Improvement of growth rate and cell productivity by aeration rate in cultures of the marine microalga Dunaliella tertiolecta
Fábregas, Jaime; Ferrón, L.; Gammallo, Y.; Vecino, E.; Otero, Ana; Herrero, Concepción (Elsevier, 1994)The effect of different aeration rates and CO2 supply regimes on mass cultures of the marine microalga Dunaiella tertiolecta was studied. Eight aeration rates in the range 0-6.51 litres of air min-1 litre of culture-1 were ... -
Marine microalgae as a potential source of minerals in fish diets
Fábregas, Jaime; Herrero, Concepción (Elsevier, 1986-01)The incorporation of powdered marine microalgae in fish diets can substitute, at least in part, for the addition of minerals to the diet. In diets for freshwater fishes, the incorporation of 33% of powdered marine microalgae ... -
Marine microalgae as a potential source of single cell protein (SCP)
Fábregas, Jaime; Herrero, Concepción (Springer, 1985-12)[Abstract] The marine microalgae Tetraselmis suecica, Isochrysis galbana, Dunaliella tertiolecta and Chlorella stigmatophora are good biological sources of single cell protein (SCP). Protein content accounts for 39.12%–54.20% ... -
Mass culture and biochemical variability of the marine microalga Tetraselmis suecica Kylin (Butch) with high nutrient concentrations
Fábregas, Jaime; Herrero, Concepción; Cabezas, Buenaventura; Abalde, Julio (Elsevier Science Publishers, 1985)Mass cultures of Tetraselmis suecica were carried out with four nutrient concentrations, ranging from 2 to 16 mM of NaNO3 and salinity 35‰. An air flow of 15 l/min maintained a CO2 transference rate sufficient to keep the ... -
Modificación del valor nutritivo de las microalgas marinas en cultivos semicontinuos
Fábregas, Jaime; Otero, Ana (Universidade da Coruña, 1999) -
Nutritional properties of four marine microalgae for albino rats
Herrero, Concepción; Abalde, Julio; Fábregas, Jaime (Springer, 1993-12)The nutritive value of the marine microalgaeTetraselmis suecica, Isochrysis galbana, Dunaliella tertiolecta and Chlorella stigmatophora was studied in diets given to rats. Biological assays were carried out in order to ... -
Response of the Marine Microalga Dunaliella tertiolecta to Nutrient Concentration and Salinity Variations in Batch Cultures
Fábregas, Jaime; Herrero, Concepción; Cabezas, Buenaventura; Liaño, Rosa; Abalde, Julio (Gustav Fisher Verlag, 1986)The marine microalga Dunaliella tertiolecta is known for its ability to tolerate a wide range of salt concentrations. Cultures were grown under 56 different nutrient concentration-salinity conditions. Optimal growth ... -
The marine microalga Chlorella stigmatophora as a potential source of single cell protein: Enhancement of the protein content in response to nutrient enrichment
Fábregas, Jaime; Herrero, Concepción; Abalde, Julio; Cabezas, Buenaventura (Elsevier, 1986)Mass cultures of Chlorella stigmatophora were carried out in order to obtain maximum protein production and to study the chemical variations in function of the nutrient concentration. Cultures reached maximum cellular ...
