scholarly journals Determination of Eleven Veterinary Drugs in Chicken Meat and Liver

2021 ◽  
Vol 11 (18) ◽  
pp. 8731
Author(s):  
Amanda Barros ◽  
Cauê S. Novo ◽  
Vivian Feddern ◽  
Arlei Coldebella ◽  
Gerson N. Scheuermann
Keyword(s):  
Chicken Meat ◽  
Foreign Markets ◽  
Trenbolone Acetate ◽  
Quantification Limit ◽  
Chemical Residues ◽  
Maximum Residue Limits ◽  
The World ◽  
Accredited Laboratory ◽  
Meat Samples

Brazil chicken production is around 13 million tons and about a third is exported to over 150 countries, placing Brazil as the world largest chicken meat producer, and therefore it is crucial to follow the legislation of all importer markets. This study conducted a survey by chance in 45 meat industries able to export. Therefore, 2580 chicken meat samples were collected and submitted to 11 analyte extraction and chromatographic verification of compliance in an accredited laboratory. Ten chemical residues (amoxicillin, bacitracin, colistin, dinitolmide + zoalene, spectinomycin, roxarsone, tiamulin, tylosin, trenbolone acetate and virginiamycin) were investigated in chicken meat and one (halofuginone hydrobromide) in chicken liver. The results showed that no compound exceeded the maximum residue limits established by seven legislations. All residue concentrations found were below the method quantification limit, thereby confirming the capability of Brazilian chicken meat industries in complying to foreign markets.

scholarly journals Determination of Eleven Veterinary Drugs in Chicken Meat and Liver

2021 ◽  
Author(s):  
Caue Sousa Novo ◽  
Amanda Barros ◽  
Vivian Feddern ◽  
Arlei Coldebella ◽  
Gerson Neudi Scheuermann
Keyword(s):  
Chicken Meat ◽  
Veterinary Drug ◽  
Chicken Breast ◽  
Foreign Markets ◽  
Control Plan ◽  
Trenbolone Acetate ◽  
Poultry Products ◽  
Chemical Residues ◽  
Accredited Laboratory

Brazil chicken production is around 13 million tons and about a third is exported to over 150 countries, placing Brazil as the world largest chicken meat producer, and therefore it is crucial to follow the legislation of all importer markets. This study aimed at evaluating ten chemical residues (amoxicillin, bacitracin, colistin, dinitolmide + zoalene, spectinomycin, roxarsone, tiamulin, tylosin, trenbolone acetate and virginiamycin) in chicken breast and one (halofuginone hydrobromide) in chicken liver. Most of these compounds are not covered by National Residues and Contaminants Control Plan (PNCRC), although they are mandatory to export chicken meat worldwide. A total of 2580 samples were collected from 45 industries and submitted to analyte extraction and chromatographic verification of compliance in an accredited laboratory. The results showed that no compound exceeded the maximum residue limits established by worldwide legislation. All results were below the method detection limit, thereby confirming the capability of Brazilian chicken meat plants in complying to foreign markets. Our results can provide occurrence trends of veterinary drug from poultry products in Brazil.

Ultrasensitive determination of chloramphenicol in pork and chicken meat samples using a portable electrochemical sensor: effects of 2D nanomaterials on the sensing performance and stability

2021 ◽  
Author(s):  
Ngo Xuan Dinh ◽  
Tuyet Nhung Pham ◽  
Tran Quang Huy ◽  
Do Quang Trung ◽  
Pham Anh Tuan ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Food Samples ◽  
Chicken Meat ◽  
Electrochemical Sensing ◽  
Portable Sensors ◽  
2D Nanomaterials ◽  
Meat Samples ◽  
Sensing Performance

This work contributes to a deeper understanding of the effects of functional 2D nanomaterials on the electrochemical sensing performance of SPE-based portable sensors for the rapid, accurate, and on-site determination of CAP in food samples.

scholarly journals Concentration of Steroid Hormones in Chicken Meat Samples from Iranian Markets Using Liquid Chromatography–Tandem Mass Spectrometry

2020 ◽  
Author(s):  
Nabi Shariatifar ◽  
Samaneh Nabizadeh ◽  
Seveh Anboyeh ◽  
Maryam Amirahmadi
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Chicken Meat ◽  
Tandem Mass ◽  
Quantification Limit ◽  
Chromatography Tandem Mass Spectrometry ◽  
Validation Parameters ◽  
Liquid Chromatography Tandem Mass ◽  
Meat Samples

Abstract The aim current study was to analysis of anabolic hormones (methyltestosterone and androstenedione) residue in meat poultry samples collected from Tehran market of Iran by a method based on liquid chromatography–tandem mass spectrometry (LC/MS/MS). In this regard, the extraction method of "quick, easy, cheap, effective, rugged and safe" (QuEChERS) was applied. The method of optimized was validated; obtaining suitable results for all validation parameters in the chicken matrices were assessed. Recovery values ranged from 76.3% to 116.7%. The detection limit (LOD) was established for two compounds as 0.16 μg/kg, and the quantification limit (LOQ) was determined as 0.5. Finally, 72 chicken meat samples were analyzed and two hormones (methyltestosterone and androstenedione) were evaluated, which were not detected in any of the chicken meat samples. Therefore, it can be concluded that the amount of contamination of chicken meat available in the Iranian market with hormones is often similar to that found in other countries, and in accordance with the European Commission (EC) standard. Therefore, due to the lack of hormones in chicken meat, its use cannot be dangerous for humans.

Income And Expense Analysis Of Retail Trade Sector Companies Traded On Borsa Istanbul

2017 ◽  
Vol 1 (2) ◽  
pp. 357
Author(s):  
Türker SUSMUŞ ◽  
S.Özgür BAŞLANGIÇ
Keyword(s):  
Research And Development ◽  
World Trade ◽  
Credit Card ◽  
Retail Trade ◽  
Operating Expense ◽  
Foreign Markets ◽  
The World ◽  
Trade Sector ◽  
Administrative Expenses

<p>Retail trade sector is growing rapidly and shows significant improvements in the “World Trade”. This charming sector is expanding and developing in Turkey appropriate to the developments in the world. In particular, population growth, the spread of the use of a credit card, the developments in Turkey’s economy and such other reasons, this sector has made a quite development in recent years.</p><p> </p>There are a total of eight companies operating in the retail trade sector in Borsa (Stock Market) Istanbul. Operating expenses such as; research and development expenses, marketing, sales and distribution expenses, general administrative expenses are very important for the determination of profitability of these companies. In this study answers to the following questions are to be searched; what is the share of operating expenses in this sector? Is there a relationship between the profitability with operating expenses? What is the ratio of total expenses in operating expense? What is the rate and volume amount of domestic market sales and export to foreign markets? This eight retail trade company operating in Bourse Istanbul will be reviewed by analyzing their income tables statistically.

scholarly journals Unconventional Composite Feed Ingredients on Storage and Sensory Attributes of Chicken Meat

2021 ◽  
pp. 169-174
Author(s):  
U. A. Agugo ◽  
U. D. E. Ogbuokiri ◽  
K. R. Emereonye ◽  
H. O. Anyanwu ◽  
L. Anozie ◽  
...  
Keyword(s):  
Sensory Attributes ◽  
Chicken Meat ◽  
Feed Ingredients ◽  
Significant Difference ◽  
Quasi Experimental ◽  
The Media ◽  
Meat Samples ◽  
Laboratory Technology ◽  
Nutrition And Dietetics

Aim: The present study investigated the effect of unconventional (Carica papaya, Manihot esculenta leaf and Brassica oleracea var. capitata leaves) Composite Feed Ingredients on storage and sensory attributes of chicken meat. Study Design: Quasi Experimental Place and Duration of Study: Department of Animal Production and Health Technology, Department of Nutrition and Dietetics and Department of Science Laboratory Technology, Imo State Polytechnic Umuagwo-Ohaji, June 2020-April, 2021.  Methodology: Arbor Acres broiler reared with unconventional composite feed ingredients, consisting of 0%, 2.5%, 5%, 7.5% proportions of Homogenized Vegetable Meal (HVM) was used. After six weeks, the broilers were slaughtered, cleaned and stored in the freezer at the temperature of 30C. Nutrient Agar (NA), Mac Conkey Agar (MCA) and Sabouraud Dextrose Agar (SDA) were the media used for the determination of bacterial and fungi growth on chicken meats during storage. Sensory evaluation of chicken meats was determined after 14 days of storage. Results: The result revealed low (3.4x 105-8x105) microbial and fungi (2.1 x105-7 x105) growth on the chicken meat samples. There was no significant difference (P=0.05) in the sensory attributes (taste, colour, aroma and general acceptability) tested. The chicken meats were generally (7.6 -7.8) acceptable by the taste panel members after 14 days of storage. Conclusion: The inclusion of unconventional (leave) ingredients in broiler feed did not affect the storage of chicken meat, rather some sensory attributes (aroma and colour) of chicken meat were improved.

Determination of 7-ketocholesterol and 7-hydroxycholesterol in meat samples by TLC with densitometric detection

2003 ◽  
Vol 16 (3) ◽  
pp. 186-191 ◽  
Author(s):  
Beata Janoszka ◽  
Lidia Warzecha ◽  
Cezary Dobosz ◽  
Danuta Bodzek
Keyword(s):  
Densitometric Detection ◽  
Meat Samples

The Dtermination of Paracetamol by HPLC Validation of the Method and Application on Serum Samples

2018 ◽  
Vol 69 (3) ◽  
pp. 627-631 ◽  
Author(s):  
Viorica Ohriac (Popa) ◽  
Diana Cimpoesu ◽  
Adrian Florin Spac ◽  
Paul Nedelea ◽  
Voichita Lazureanu ◽  
...  
Keyword(s):  
Mobile Phase ◽  
High Performance ◽  
Hplc Analysis ◽  
Emotional Experience ◽  
Optimum Conditions ◽  
Serum Samples ◽  
Liquid Chromatograph ◽  
Mobile Phase Flow Rate ◽  
Quantification Limit

Pain is defined as a disagreeable sensory and emotional experience related to a tissue or potential lesion. Paracetamol (Acetaminophen) is the most used non-morphine analgesic. For the determination of paracetamol we developed and validated the high performance liquid chromatography (HPLC) analysis using a Dionex Ultimate 3000 liquid chromatograph equipped with a multidimensional detector. After determining the optimum conditions of analysis (80/20 water / acetonitrile mobile phase, flow rate 1.0 mL / min, detection wavelength 245 nm) we validated the method following the following parameters: linearity of response function, linearity of results, limit (LD = 0.66 mg / mL) and quantification limit (LQ = 2.00 mg / mL), and precision. The method of determining paracetamol by HPLC was applied to 30 samples of serum collected from patients who had pain and were treated with paracetamol.

HPLC-UV Method for Determination of Famotidine from Pharmaceutical Products

2018 ◽  
Vol 69 (2) ◽  
pp. 297-299
Author(s):  
Adriana Nita ◽  
Delia Mirela Tit ◽  
Lucian Copolovici ◽  
Carmen Elena Melinte (Frunzulica) ◽  
Dana Maria Copolovici ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Quantitative Analysis ◽  
Linear Response ◽  
Mobile Phase ◽  
Acetic Acid Solution ◽  
Pharmaceutical Products ◽  
Quantification Limit ◽  
Validation Parameters ◽  
Hplc Analyses

The aim of this study was to develop and validate a rapid, accurate, and exact method for the quantitative determination of famotidine in pharmaceutical products. The HPLC analyses were performed by using a mobile phase containing methanol:1% acetic acid solution=30:7 (v/v), at a flow rate of 0.4 mL/min.The total time of the method was 10 min, and the retention time of famotidine was 4.16 min. The detection was evaluated at l=267 nm. The method has been validated by using different validation parameters. The linear response of the detector for famotidine peak area was observed at concentrations ranging from 0.1 to 0.0001 mg mL-1 , resulting in a correlation coefficient of 0.99998. The values of the detection limit and of the quantification limit are 0.00048 mg mL-1 and 0.00148 mg mL-1, respectively. The method proposed allowed accurate (with a relative error of less than 2%) and precise (RSD values less than 2.0%) determination of famotidine content in pharmaceutical products and can be used for its rapid quantitative analysis.

Actual issues of valuation of businesses of the economic entity

2017 ◽  
Vol 31 (2) ◽  
pp. 156-162 ◽  
Author(s):  
O. V. Schneider
Keyword(s):  
Discount Rate ◽  
Accurate Prediction ◽  
Economic Activities ◽  
Business Valuation ◽  
Economic Entity ◽  
The World ◽  
Definition Of

The article summarizes the main approaches in the definition of business valuation the economic entity. In the process of business valuation, taking into account the risks of financial and economic activities necessary to obtain information on what stage the owner implements the business will receive income. The most difficult task is the impossibility of accurate prediction in determining the level of income and the determination of a discount rate capitalization of future incomes due to the instability of the economy, both in the country and around the world.

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