نتایج جستجو برای: antibiotic residue

تعداد نتایج: 130832  

Journal: :Bangladesh journal of public administration 2022

Most of the poultry farms in Bangladesh use antibiotics to combat risk disease occurrences due poor managemental practices. This haphazard and illegitimate is responsible for antibiotic resistance residual problem eggs meat. However, data on consumption by layer birds farmers' perspectives are shockingly rare Bangladesh. In order understand perceptions usage Bangladesh's small-scale farms, this...

2015
Subrata Chakraborty Dar-Fu Tai Yi-Chun Lin Tzyy-Wen Chiou Peter Duggan

Marine derived cyclo(Gly-l-Ser-l-Pro-l-Glu) was selected as a lead to evaluate antitumor-antibiotic activity. Histidine was chosen to replace the serine residue to form cyclo(Gly-l-His-l-Pro-l-Glu). Cyclic tetrapeptides (CtetPs) were then synthesized using a solution phase method, and subjected to antitumor and antibiotic assays. The benzyl group protected CtetPs derivatives, showed better acti...

Journal: :Antimicrobial agents and chemotherapy 1973
H R Schroeder M F Mallette

The myxomycete Physarum gyrosum was cultured in its plasmodial stage on agar plates containing 0.025 M phosphate buffer at pH 6.5, 2% bakers' yeast, and 0.2% glucose and was supplemented with live Escherichia coli. Extracts of these plasmodia contained several antibiotic substances. Antibiotic materials were partially purified by dialysis of the agar medium-mold mixture, evaporation of the dial...

Afshar Mogaddam, MR, Khandaghi, J, Vajdi HokmAbad, S,

Background and Objectives: Different types of antibiotics are used indiscriminately in animal husbandry for the growth and treatment of livestock, which cause accumulation of antibiotic residues in livestock products such as milk. Long-term consumption of milk contaminated with antibiotic residues above the permissible limits is harmful to human health, causing antibiotic resistance problems. T...

Journal: :IEEE Trans. Information Theory 2001
Tsung-Ching Lin Hung-Peng Lee Hsin-Chiu Chang Trieu-Kien Truong

Journal: :Central European Management Journal 2023

Antibiotics are compounds that can kill or stop the growth of germs, and used by humans. Improper usage disposal antibiotics is a major source antibiotic residual pollution. This paper aims to review on sources, risks remedies in environment Ghana.  The search was employed find published articles which reported residues occurrence through PubMed Google Scholar. included 17 papers met inclu...

2005

1. Two optically isomeric open-chain pentapeptide esters have been synthesized. These peptides have the same sequence of amino-acid residues as gramicidin S. 2. A crystalline acylpentapeptide amide has been synthesized. Thiscompound is structurally analogous to the natural antibiotic in that its constituent amino-acids are arranged in the same sequence and are of the same optical configuration ...

2013
Deeptak Verma Donald J. Jacobs Dennis R. Livesay

The bacterial enzyme β-lactamase hydrolyzes the β-lactam ring of penicillin and chemically related antibiotics, rendering them ineffective. Due to rampant antibiotic overuse, the enzyme is evolving new resistance activities at an alarming rate. Related, the enzyme's global physiochemical properties exhibit various amounts of conservation and variability across the family. To that end, we charac...

2012
Jo Nelissen Koen Nuyts Marta De Zotti Rob Lavigne Chris Lamberigts Wim M. De Borggraeve

The total synthesis is reported of the peptaibol Septocylindrin B which is related to the well documented channel forming peptaibol antibiotic Alamethicin. Several analogues were synthesized with a modified C-terminus, to investigate the SAR of the terminal residue Phaol. All these peptides were tested for their membrane perturbation properties by fluorescent dye leakage assay and for their ant...

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