Increased diazinon hydrolysis to 2-isopropyl-6-methyl-4-pyrimidinol in liquid medium by a specific Streptomyces mixed culture

Chemosphere ◽  
2016 ◽  
Vol 156 ◽  
pp. 195-203 ◽  
Author(s):  
G. Briceño ◽  
H. Schalchli ◽  
O. Rubilar ◽  
G.R. Tortella ◽  
A. Mutis ◽  
...  
Keyword(s):  
Liquid Medium ◽  
Mixed Culture

scholarly journals Chlorpyrifos removal by Thiobacillus sp. and Clostridium sp. in liquid medium

2018 ◽  
Vol 197 ◽  
pp. 13012
Author(s):  
Thalia Sunaryo ◽  
Hilarion Widyatmoko ◽  
Astri Rinanti
Keyword(s):  
Gas Chromatography ◽  
Liquid Medium ◽  
Temperature Variation ◽  
Mixed Culture ◽  
Removal Efficiency ◽  
Salt Solution ◽  
Contact Time ◽  
Mineral Salt ◽  
Ms Analysis

The bioremediation research of chlorpyrifos has been done to remove the concentration of chlorphyrifos using the natural bacterial Thiobacillus sp. and Clostridium sp.. The efficiency of chlorpyrifos removal was determined by the temperature and contact time. The research was done by adding 100 ppm of chlorpyrifos into the Stone Mineral Salt solution (SMSs) under controlled condition, then each bacterial are added as much as 10% (v/v) with pH 7. To obtain optimum efficiency, this study was conducted with temperature variation (°C) 25, 30, 35, 40 and contact time (hours) 12, 24, 36, 48. Based on Gas Chromatography Mass Spektrofotometer (GC-MS) analysis, the efficiency of removal at temperature (°C) 25, 30, 35, 40 are 43%, 68%, 71% and 52% respectively, while the removal efficiency at contact time (hours) 12, 24, 36, 48 are 43%, 49%, 74%, and 36%. The result showed that 74% removal efficiency by Thiobacillus sp. and Clostridium sp. obtained at 35°C in 36 hours of contact time. Thus, the mixed culture of Thiobacillus sp. and Clostridium sp. are able to synergize for removing the chlorpyrifos at 100 ppm.

scholarly journals Oxidation of a Mixture of Polyaromatic Hydrocarbons by a Mixed Culture of Hydrocarbon-Oxidizing Microorganisms

2021 ◽  
Vol 23 (1) ◽  
pp. 59
Author(s):  
D. A. Filatov ◽  
M. A. Kopytov ◽  
V. S. Ovsyannikova ◽  
E. A. Elchaninova
Keyword(s):  
Liquid Medium ◽  
Mixed Culture ◽  
Polyaromatic Hydrocarbons ◽  
Pseudomonas Stutzeri ◽  
Polyaromatic Hydrocarbon ◽  
Natural Conditions ◽  
Biochemical Oxidation ◽  
Oxygenase Activity ◽  
Total Utilization ◽  
Initial Contamination

The possibility of biochemical oxidation of polyaromatic hydrocarbon mixtures (PAHs) by the mixed culture of hydrocarbon-oxidizing microorganisms (HOM) in a liquid medium and soil was investigated. The mixed HOM culture was represented by Pseudomonas stutzeri, Pseudomonas putida, Bacillus cereus, and Arthrobacter globiformis genera. It was shown that during HOM cultivation of the microorganisms under study in the liquid medium their number increases from 0.25·104 to 11·108 CFU/ml, which is accompanied by an increase in their oxygenase activity. All PAHs identified were subjected to oxidation from 11.3 to 100%. The results of experiments on biodegradation of PAHs under natural conditions have shown that for 60 days the total utilization of oil products in soils was on the average 65% of the initial contamination. This suggests the prospects for the use of the mixed HOM culture under study for effective biodegradation of PAHs polluting soil and waste waters.

Somatic embryogenesis of Cyclamen persicum in liquid medium

1995 ◽  
Vol 94 (4) ◽  
pp. 605-612 ◽  
Author(s):  
Marc Kreuger ◽  
Erik Postma ◽  
Yvon Brouwer ◽  
Gerrit-Jan van Holst
Keyword(s):  
Somatic Embryogenesis ◽  
Liquid Medium ◽  
Cyclamen Persicum

Analysis of the Acoustic Emission of a Bubble in Liquid Medium.

2019 ◽  
Author(s):  
Alejandro de Jongh ◽  
Flavius Martins ◽  
Linilson Padovese
Keyword(s):  
Acoustic Emission ◽  
Liquid Medium

A STUDY CONCERNING DIESEL BIODEGRADATION IN LIQUID MEDIUM, BY BIOAUGMENTATION, USING A PSEUDOMONAS SP. STRAIN

2009 ◽  
Vol 8 (3) ◽  
pp. 549-552 ◽  
Author(s):  
Dana-Camelia Cocut ◽  
Corneliu Cojocaru ◽  
Mariana Diaconu ◽  
Matei Macoveanu
Keyword(s):  
Liquid Medium ◽  
Pseudomonas Sp ◽  
Diesel Biodegradation

Mesoporous carbon for removal organic compounds from liquid medium: kinetic and equilibrium

2018 ◽  
pp. 5-16
Author(s):  
A. E. Burakov ◽  
◽  
I. V. Burakova ◽  
D. A. Kurnosov ◽  
E. S. Mkrtchyan ◽  
...  
Keyword(s):  
Liquid Medium ◽  
Organic Compounds ◽  
Mesoporous Carbon

Impact of Transfaunation of Rumen Ciliate Cultures on Physical Examination, Selected Serum Parameters and Milk Profile in Defaunated Lactating Dairy Goats

2020 ◽  
Keyword(s):  
Physical Examination ◽  
Mixed Culture ◽  
Pure Culture ◽  
Milk Fat ◽  
Mixed Cultures ◽  
Dairy Goats ◽  
Serum Parameters ◽  
Native Breed ◽  
Culture Duration ◽  
Inorganic Phosphorous

Rumen ciliates still have mysterious secrets and influences in ruminants. This study investigated the effect of transfaunation of pure and mixed cultures of rumen ciliates on physical clinical examination, selected serum parameters and milk profile in defaunated lactating dairy goats. A number of 8 Baladi native breed goats were randomly classified into two groups each one containing 4 goats. Pure culture group was transfaunated with 6 ml of pure culture of Holotricha spp., while mixed culture group was transfaunated with 6 ml of mixed culture of 81.85% Holotricha and 18.15% Ophryoscolex spp. once weekly for three consecutive weeks, after defaunation of both groups using 30 ml of 8% SLS for two consecutive days. Serum and milk samples were collected weekly for three successive weeks to study effect of type of ciliate culture, duration of transfaunation and their interaction. Results revealed that transfaunation of pure and mixed cultures of rumen ciliates had no effect on physical examination with minimal non-significant improvement of calcium, inorganic phosphorous, total protein and globulin in serum of defaunated goats. Transfaunation of pure or mixed cultures of rumen ciliates within three weeks could not improve significantly decreased milk fat % of defaunated goats without any effect on other measured milk profile parameters. It is concluded that further investigations on transfaunation without prior defaunation should be performed using different pure and mixed cultures of rumen ciliates for therapeutic and productive purposes.

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