Studies on Salt Fish: II. The Effect of Salt Concentration on Preservation

1937 ◽  
Vol 3 (5) ◽  
pp. 439-449 ◽  
Author(s):  
A. Labrie ◽  
N. E. Gibbons
Keyword(s):  
Salt Concentration ◽  
Reduction Potential ◽  
Bacterial Count ◽  
Trimethylamine Oxide

The preserving action of salt, as determined chemically and bacteriologically, increases with increasing salt concentration (8 to 32%) and decreasing temperature (21 to 10 °C). It shows in a lengthening of the period of lag before rapid increase in volatile bases. The increase begins when the bacterial count reaches 10–20 million per ml. on 10 per cent salt agar, and its rate is not influenced by salt concentration. The hypothesis is advanced that the trimethylamine oxide present in the fish is reduced very rapidly to trimethylamine when the reduction potential reaches a definite point.

Effect of Tetracycline Antibiotics on Objective and Subjective Fish Quality Tests

1962 ◽  
Vol 19 (4) ◽  
pp. 615-618 ◽  
Author(s):  
J. W. Boyd ◽  
B. A. Southcott
Keyword(s):  
Nitrogen Content ◽  
Reasonable Agreement ◽  
Bacterial Count ◽  
Poor Agreement ◽  
Tetracycline Antibiotics ◽  
Fish Quality ◽  
Trimethylamine Oxide ◽  
Control Samples

The effect of the antibiotics chlortetracycline and oxytetracycline on certain fish quality tests (viable bacterial count, trimethylamine nitrogen content and organoleptic rating) was evaluated. The formation of trimethylamine by the reduction of trimethylamine oxide in lingcod muscle was suppressed when chlortetracycline and oxytetracycline were used as preservatives in storage tests at 0 and 4 °C. Results of the three tests on antibiotic-treated samples showed poor agreement; reasonable agreement was obtained from the tests on control samples.

Self-diffusion study of bile salt-monoolein micelles determination of the intermicellar bile salt concentration

1983 ◽  
Vol 80 ◽  
pp. 315-323 ◽  
Author(s):  
Marc Lindheimer ◽  
Jean-Claude Montet ◽  
Roselyne Bontemps ◽  
Jacques Rouviere ◽  
Bernard Brun
Keyword(s):  
Bile Salt ◽  
Salt Concentration ◽  
Diffusion Study ◽  
Bile Salt Concentration ◽  
Self Diffusion

Changes in Viable Bacterial Count of Sardine during Partially Frozen Storge

1980 ◽  
Vol 46 (11) ◽  
pp. 1419-1419
Author(s):  
Shigeo EHIRA ◽  
Tateo FUJII
Keyword(s):  
Bacterial Count

Sidrophore Production and Phosphate Solubilization by Bacillus cereus and Pseudomonas fluorescens Isolated from Iraqi Soils and Soil Characterization

2018 ◽  
Vol 9 (4) ◽  
Author(s):  
Zaid Raad Abbas ◽  
Aqeel Mohammed Majeed Al-Ezee ◽  
Sawsan H
Keyword(s):  
Bacillus Cereus ◽  
Pseudomonas Fluorescens ◽  
Phosphate Solubilization ◽  
Bacterial Species ◽  
Nutrient Status ◽  
Bacterial Count ◽  
Soil Samples ◽  
Phosphate Solubilizing Bacteria ◽  
Clear Zone ◽  
Zone Formation

This study was conducted to explore the ability of Pseudomonas fluorescens and Bacillus cereus to solubilizing a phosphate in soil for enhancing the planting growth and, its relation with soill characterization. The isolates were identified as P.fluorescens and B. cereus using convential analysis and, its phosphate solubilization ability and sidrophore was shown by the clear zone formation on National Botanical Research Institute���s Phosphate medium. Moreover, Pseudomonas fluorescens isolates (n = 9) and three of B. cereus isolated from agricultural area in Baghdad university, Mustansiriyah university and Diyala bridge. Results displayed that bacterial count were varied in soil samples according to their region, and ranging from 30 to 60 *10 2 CFU/g in Baghdad university soil to 10���20 *10 2 CFU/g in Mustansiriyah university soil, the Baghdad soil macronutrient which included: NH4, NO3, P, and K were, 8.42, 20.53, 19.09, 218.73 respectively, While the physio analysis revealed that the mean of pH was 7.3 and EC was 8.63. on the other hand the micronutrient analysis indicated that the soil samples were included Ca, Fe, Mn, Zn and Cu which gave their mean 5025.9, 8.9, 4.9, 0.5 and 1.5 respectevily. Results revealed that all isolated bacteria (9 isolates of P.fluorescens and three isolates of B. cereus gave ahalo zone which mean their ability to be phosphate solubilizing bacteria at 100%. Results revealed that all isolated bacteria were detected a ability to produce high levels from chelating agents (siderophores)) by P.fluorescens and. B cereus at 100%, when appeared ahalo clear zone. Furthermore, the high levels of phosphate solubilization and siderophore production were grouped in bacterial species isolated from Iraqi soils. might be attributed to many soil factors such as soil nutrient status, soil acidity, water content, organic matter and soil enzyme activities.

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