Agricultural fertilizers as alternative culture media for biomass production of Chondracanthus squarrulosus (Rhodophyta, Gigartinales) under semi-controlled conditions

Aquaculture ◽  
2004 ◽  
Vol 240 (1-4) ◽  
pp. 201-209 ◽  
Author(s):  
I. Pacheco-Ruíz ◽  
J.A. Zertuche-González ◽  
E. Arroyo-Ortega ◽  
E. Valenzuela-Espinoza
Keyword(s):  
Biomass Production ◽  
Culture Media ◽  
Controlled Conditions ◽  
Alternative Culture

scholarly journals Electromagnetic Fields (0.04 to 0.39) mT effect on cellular growth cycles of Saccharomyces cerevisiae wine strains

2019 ◽  
Vol 17 (2) ◽  
pp. 196
Author(s):  
Eliseo Amado-González ◽  
Alveiro Álvarez Ovallos ◽  
Alfonso Quijano Parra
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Electromagnetic Fields ◽  
Biomass Production ◽  
Exposure Time ◽  
Culture Media ◽  
Dry Weight ◽  
Cellular Growth ◽  
Biomass Growth ◽  
Yeast Saccharomyces Cerevisiae ◽  
Growth Cycles

Low frecuency electromagnetic fields effect (EMF) on growth cycles of yeast Saccharomyces cerevisiae wine strains Rv1 and Rhône were studied.  A cylindrical coil induced magnetic fields with inductions up to 0,39 mT. Exposure time to EMF varied between (1 – 10) min at 30 °C.  The biomass growth were monitored in the reactor culture media (yeast extract + by measurement optical density from (0 to 32) h. The biomass was found by dry weight. After yeast expose to the different EMF, the number of growth cycles decreased from 4 cycles to 2 or 1. However, the biomass production increased almost 50 %.  The best biomass production was found at 0.39 mT and 10 min exposure time.  Keywords: Electromagnetic fields, Saccharomyces cerevisiae, biomass production, RV1

Effect of culture media and pH on the biomass production and biocontrol efficacy of aMetschnikowia pulcherrimastrain to be used as a biofungicide for postharvest disease control

2010 ◽  
Vol 56 (2) ◽  
pp. 128-137 ◽  
Author(s):  
D. Spadaro ◽  
A. Ciavorella ◽  
Z. Dianpeng ◽  
A. Garibaldi ◽  
M. L. Gullino
Keyword(s):  
Biomass Production ◽  
Yeast Extract ◽  
Culture Media ◽  
Carbon Sources ◽  
Ph Control ◽  
Cell Number ◽  
Penicillium Expansum ◽  
Postharvest Disease ◽  
Yeast Growth ◽  
Nutrient Sources

Few strains of Metschnikowia pulcherrima (Pitt) M.W. Miller are under development for control of postharvest pathogens on fruit. A substrate was developed to optimize the biomass production of M. pulcherrima strain BIO126. Different complex nutrient sources, with or without pH control, were tested. Growth in yeast extract provided at concentrations ≥30 g·L–1yielded the highest biomass. The addition of two carbon sources, d-mannitol and l-sorbose, at 5 g·L–1each, significantly improved yeast growth. The greatest amount of yeast growth occurred when pH values of the medium ranged from 5.0 to 7.5. A combination of yeast extract, d-mannitol, and l-sorbose (YEMS), probably with diauxic utilization, showed a synergistic effect, widening the exponential phase (maximum specific growth rate of 0.45 h–1) and increasing the final cell number (1.5 × 109cells·mL–1) and dry biomass (6.0 g·L–1) in well-controlled batch fermentation. In efficacy trials on ‘Golden Delicious’ apples, M. pulcherrima grown in YEMS effectively reduced incidence and severity of Botrytis cinerea (51.1% and 70.8%, respectively) and Penicillium expansum (41.7% and 14.0%, respectively). Also on ‘Gala’ apples, the best reduction of grey and blue mould incidence was obtained with cells grown in YEMS (58.1% and 50.5%, respectively).

Nutrient composition of culture media induces different patterns of CO2 fixation from biogas and biomass production by the microalga Scenedesmus obliquus U169

2017 ◽  
Vol 40 (12) ◽  
pp. 1733-1742 ◽  
Author(s):  
Francisco J. Choix ◽  
Elena Polster ◽  
Rosa Isela Corona-González ◽  
Raúl Snell-Castro ◽  
Hugo O. Méndez-Acosta
Keyword(s):  
Biomass Production ◽  
Co2 Fixation ◽  
Culture Media ◽  
Scenedesmus Obliquus ◽  
Nutrient Composition

PAH removal by immobilized bacterial cells-support systems using low-cost culture media for biomass production

2017 ◽  
Vol 120 ◽  
pp. 6-14 ◽  
Author(s):  
Mauricio J. Alessandrello ◽  
María S. Juárez Tomás ◽  
Paula Isaac ◽  
Diana L. Vullo ◽  
Marcela A. Ferrero
Keyword(s):  
Biomass Production ◽  
Support Systems ◽  
Culture Media ◽  
Low Cost ◽  
Bacterial Cells

scholarly journals Comparison of photoautotrophic and mixotrophic cultivation of microalgae Messastrum gracile (Chlorophyceae) in alternative culture media

2020 ◽  
Vol 80 (4) ◽  
pp. 914-920 ◽  
Author(s):  
L. H. Sipaúba-Tavares ◽  
B. Scardoeli-Truzzi ◽  
D. C. Fenerick ◽  
M. G. Tedesque
Keyword(s):  
Eichhornia Crassipes ◽  
Culture Medium ◽  
Culture Media ◽  
Lemna Minor ◽  
Dry Weight ◽  
Commercial Culture ◽  
Mixotrophic Cultivation ◽  
Lipid Contents ◽  
Alternative Culture ◽  
Chemical Conditions

Abstract Growth and biological conditions of Messastrum gracile were evaluated to compare the effect of photoautotrophic and mixotrophic cultivation on the increase of biomass production and chemical conditions cultured in macrophyte and commercial culture media. The growth rate (k) of M. gracile was different in the culture media, higher in mixotrophic cultivation for Lemna minor culture medium, whilst to Eichhornia crassipes and NPK culture media were higher in photoautotrophic cultivation. Mean lipid contents in photoautotrophic cultivation were 8.2% biomass dry weight, whereas they reached 19% biomass dry weight in mixotrophic cultivation. Protein contents were below 48% biomass dry weight in photoautotrophic cultivation and 30% biomass dry weight in mixotrophic cultivation. Messastrum gracile cultured in macrophyte culture media (E. crassipes and L. minor) and NPK culture medium provided satisfactory results with regard to lipid and protein contents in mixotrophic and photoautotrophic cultivations, respectively. Lipid and protein contents in alternative media were higher or similar to the CHU12 commercial culture medium.

scholarly journals Grapevine culture in trenches. 2. Reproductive characteristics and interactions with vegetative growth

OENO One ◽  
2003 ◽  
Vol 37 (2) ◽  
pp. 85
Author(s):  
Christophe Zapata ◽  
Jean-Claude Audran ◽  
Christian Magné
Keyword(s):  
Biomass Production ◽  
Vegetative Growth ◽  
Fruit Set ◽  
Reproductive Development ◽  
Growing Season ◽  
Pinot Noir ◽  
Inflorescence Development ◽  
The Third ◽  
Controlled Conditions ◽  
Berry Size

<p style="text-align: justify;">In order to assess the consequence of a strong vegetative growth on inflorescence development and berry setting, two grapevine cultivars differing in their rate of fruit set were grown for 3 years in a greenhouse under semi-controlled conditions. Merlot (low % fruit set) and Pinot noir (high % fruit set) vines produced well-developed clusters in year 3 after planting, thus allowing the study of interactions between vegetative growth and reproductive development over the third growing season. Progress in development of both cultivars was simultaneous until pea berry size and biomass production was similar throughout the season. However, biomass production was negatively correlated to flower differentiation (number of flowers/inflorescence) in Merlot whereas not in P. noir. Possible causes of this interaction are discussed.</p>

scholarly journals Dioscorea alata as Alternative Culture Media for Fungal Cultivation and Biomass Production

2021 ◽  
Vol 44 (2) ◽  
Author(s):  
Suwapha Sawiphak ◽  
Aroon Wongjiratthiti ◽  
Chanankarn Saengprasan
Keyword(s):  
Biomass Production ◽  
Ph Value ◽  
Culture Media ◽  
Culture Conditions ◽  
Inoculum Size ◽  
Dioscorea Alata ◽  
Optimal Conditions ◽  
Potato Dextrose Broth ◽  
Fungal Cultivation ◽  
Purple Yam

Dioscorea alata (purple yam) is a tuber crop that contains plenty of nutrients. It is widely cultivated in Thailand, but it is underutilized. In this study, the suitability of purple yam to replace potato dextrose media for fungal growth was investigated. Mushrooms and molds were grown on purple yam dextrose agar (PYDA), whereas yeasts were cultured in purple yam dextrose broth (PYDB). Response surface methodology (RSM) with Box-Behnken design (BBD) was used to optimize the culture conditions for Saccharomyces cerevisiae biomass production. The growth profile of S. cerevisiae in PYDB under optimized culture conditions was also studied. All test mushrooms and molds recorded the highest colony diameter and mycelial dry weight on PYDA containing 40% purple yam. Similar to mushrooms and molds, yeasts in PYDB with 40% purple yam showed the highest number of cells. The growth of fungi on purple yam dextrose media was significantly higher than those on potato dextrose media under standard conditions. The optimal conditions from the RSM results for the biomass production of S. cerevisiae in PYDB were purple yam concentration of 49.61%, dextrose concentration of 4.87%, pH value of 5.74, and inoculum size of 7.00%. The biomass of S. cerevisiae in PYDB under the optimal conditions obtained from the results of the optimization by RSM was thirty times higher than S. cerevisiae biomass in potato dextrose broth under standard conditions. Our results suggest that purple yam could be an alternative to potato dextrose media for fungal cultivation.

scholarly journals Urban secondary sewage: an alternative medium for the culture of Tetraselmis chuii (Prasinophyceae) and Dunaliella viridis (Chlorophyceae)

2004 ◽  
Vol 47 (3) ◽  
pp. 451-459 ◽  
Author(s):  
Rauquírio André Albuquerque Marinho da Costa ◽  
Maria Luise Koening ◽  
Sílvio José de Macedo
Keyword(s):  
Culture Media ◽  
Chicken Manure ◽  
Dunaliella Viridis ◽  
Chi Square ◽  
Nutritive Medium ◽  
Tetraselmis Chuii ◽  
Alternative Culture ◽  
Chi Square Test ◽  
Cell Densities ◽  
Intensive Aquaculture

The effect of different concentrations (10, 20, 30 and 40%) of urban secondary sewage on the growth of Tetraselmis chuii (Prasinophyceae) and Dunaliella viridis (Chlorophyceae) was examined to verify the possibility of its use as an alternative culture medium for these species. Stocks and 700mL duplicate batch cultures were maintained under controlled laboratory conditions. 30% and 40% additions were the most efficient for the growth of both species. Statistical analysis of the adjusted growth (cell.mL-1) and biomass (µg chlorophyll-a.mL-1) curves performed using the Chi-square test (p<0.05) demonstrated significant differences between the nutritive medium f/2 and the 40% addition used for these two species. The results suggested that some of the concentrations tested here yielded satisfactory cell densities and growth rates when compared with other culture media (macroalgae, bovine and chicken manure extracts). Thus it could be used by semi intensive aquaculture systems.

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