Yeast Extract with Supplements (YES) and 5-Fluoroorotic Acid (5-FOA):

2016 ◽  
Vol 2016 (3) ◽  
pp. pdb.rec091405
Keyword(s):  
Yeast Extract ◽  
Fluoroorotic Acid

The influence of the initial concentrations of glucose and yeast extract on the ethanolic fermentation by Pachysolen tannophilus

1990 ◽  
Vol 55 (3) ◽  
pp. 854-866 ◽  
Author(s):  
Rodríguez V. Bravo ◽  
Rubio F. Camacho ◽  
Villasclaras S. Sánchez ◽  
Vico M. Castro
Keyword(s):  
Cell Growth ◽  
Ethanol Production ◽  
Yeast Extract ◽  
Culture Medium ◽  
Ethanolic Fermentation ◽  
Pachysolen Tannophilus ◽  
Significant Component ◽  
Batch Cultures

The ethanolic fermentation in batch cultures of Pachysolen tannophilus was studied experimentally varying the initial concentrations of two of the components in the culture medium: glucose between 0 and 200 g l-1 and yeast extract between 0 and 8 g l-1. The yeast extract appears to be a significant component both in cell growth and for ethanol production.

Effect of Different Nutrient Components on Polysaccharide and Biomass Production from Fomitopsis pinicola Karst

2012 ◽  
Vol 503-504 ◽  
pp. 174-177
Author(s):  
Li Min Hao ◽  
Zheng Li ◽  
Ai Li Zhao ◽  
Wei Long Chen ◽  
Zi Tao Wang
Keyword(s):  
Biomass Production ◽  
Yeast Extract ◽  
Biomass Growth ◽  
Fomitopsis Pinicola ◽  
Potential Applications ◽  
Optimal Medium

The Fomitopsis pinicola Karst is a novel mushroom. Its exo-polysaccharide and biomass of F.pinicola Karst have widely potential applications. In this paper, effect of different nutrient components on exo-polysaccharide and biomass production was reported. The results revealed that the optimal medium for producing CEPS was (g/L): glucose 150, yeast extract 5, MgSO4•7H2O 0.8, KH2PO4 1.2. The optimal medium for biomass growth was (g/L): glucose 150, yeast extract 15, MgSO4•7H2O 0.6, KH2PO4 1.4.

scholarly journals INFLUENCE OF CERTAIN DYESTUFFS ON FERMENTATION AND RESPIRATION OF YEAST EXTRACT

1936 ◽  
Vol 113 (3) ◽  
pp. 717-734
Author(s):  
Leonor Michaelis ◽  
C.V. Smythe
Keyword(s):  
Yeast Extract

Yeast extract on growth, nutrient utilization and haemato-immunological responses of Nile tilapia

2015 ◽  
Vol 47 (8) ◽  
pp. 2650-2660 ◽  
Author(s):  
Ricardo da Silva Berto ◽  
Gabriella do Vale Pereira ◽  
José Luiz Pedreira Mouriño ◽  
Maurício Laterça Martins ◽  
Débora Machado Fracalossi
Keyword(s):  
Yeast Extract ◽  
Nile Tilapia ◽  
Nutrient Utilization ◽  
Immunological Responses

scholarly journals Activated Yeast Extract Enhances Growth, Anatomical Structure, and Productivity of Lupinus termis L. Plants under Actual Salinity Conditions

Agronomy ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 74
Author(s):  
Ragab S. Taha ◽  
Mahmoud F. Seleiman ◽  
Bushra Ahmed Alhammad ◽  
Jawaher Alkahtani ◽  
Mona S. Alwahibi ◽  
...  
Keyword(s):  
Salinity Stress ◽  
Yeast Extract ◽  
Field Experiments ◽  
Soluble Sugars ◽  
Substantial Improvement ◽  
Vital Role ◽  
Anatomical Structure ◽  
Saline Stress ◽  
Total Soluble Sugars ◽  
Seed Yields

Salinity is one of the most severe environmental stresses that negatively limits anatomical structure, growth and the physiological and productivity traits of field crops. The productivity of lupine plants is severely restricted by abiotic stress, particularly, salinity in arid and semiarid regions. Activated yeast extract (AYE) can perform a vital role in the tolerance of environmental stress, as it contains phytohormones and amino acids. Thus, field experiments were conducted to explore the potential function of active yeast extract (0, 50, 75, and 100 mL AYE L−1) in mitigating the harmful impacts of salinity stress (EC = 7.65 dS m−1) on anatomical structure, growth, and the physiological and productivity traits of two lupine cultivars: Giza 1 and Giza 2. The different AYE treatments resulted in a substantial improvement in studied attributes, for example the growth, anatomical, physiological characteristics, and seed yields of treated lupine cultivars compared with untreated plants. Among the AYE doses, 75 mL L−1 significantly improved plant growth, leaf photosynthetic pigments, total soluble sugars, total protein, and seed yields, and exposed the best anatomical attributes of the two lupine cultivars grown under saline stress. The exogenous application of 75 mL AYE L−1 was the most influential, and it surpassed the control results by 45.9% for 100-seed weight and 26.9% for seed yield per hectare. On the other hand, at a concentration of 75 mL L−1 AYE there was a decrease in the alkaloids and endogenous proline under the studied salinity stress conditions. Promoted salinity stress tolerance through sufficient AYE dose is a hopeful strategy to enhance the tolerance and improve productivity of lupine into salinity stress. Furthermore, the response of lupine to salinity stress appears to rely on AYE dose. The results proved that Giza 2 was more responsive to AYE than Giza 1, showing a better growth and higher yield, and reflecting further salinity tolerance than the Giza 1 cultivar.

scholarly journals Bioprocess development for enhanced endoglucanase production by newly isolated bacteria, purification, characterization and in-vitro efficacy as anti-biofilm of Pseudomonas aeruginosa

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Atef M. Ibrahim ◽  
Ragaa A. Hamouda ◽  
Noura El-Ahmady El-Naggar ◽  
Fatma M. Al-Shakankery
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Yeast Extract ◽  
Statistical Design ◽  
Life Time ◽  
Maximum Activity ◽  
Bioprocess Development ◽  
Ammonium Sulfate Precipitation ◽  
Face Centered ◽  
Central Composite

AbstractEndoglucanase producing bacteria were isolated from Egyptian soils and the most active bacterial strain was identified as Bacillus subtilis strain Fatma/1. Plackett–Burman statistical design was carried out to assess the effect of seven process variables on endoglucanase production. Carboxymethyl cellulose (CMC), yeast extract and peptone were the most significant variables that enhanced the endoglucanase production and thus were selected for further optimization using face-centered central composite design. The highest yield of endoglucanase (32.37 U/mL) was obtained in run no. 9, using 18 g/L CMC, 8 g/L peptone, 7 g/L yeast extract and 0.1 g/L FeSO4.7H2O. The optimized medium showed about eightfold increase in endoglucanase production compared to the unoptimized medium. The produced crude enzyme was further purified by ammonium sulfate precipitation, then DEAE-Sepharose CL6B column. The purified enzyme was shown to have a molecular weight of 37 kDa. The enzyme showed maximum activity at pH 8.0, temperature of 50 °C, incubation time of 60 min. The half-life time (T1/2) was 139.53 min at 50 °C, while being 82.67 min at 60 °C. Endoglucanase at concentration of 12 U/mL effectively removed 84.61% of biofilm matrix of Pseudomonas aeruginosa with marked reduction in carbohydrate content of the biofilm from 63.4 to 7.9 μg.

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