An introduction to staphylococcus aureus, and techniques for identifying and quantifying s. aureus adhesins in relation to adhesion to biomaterials: review

Lg, Harris; Sj, Foster; Rg, Richards

doi:10.22203/ecm.v004a04

Cited by 238 publications

(175 citation statements)

References 42 publications

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“…The gas flow rates and deposition times were identical, and these results indicate that the GSE and propolis particle deposition patterns on the filters were similar, because particle deposition is dependent mainly on the particle size, the filtration mechanisms of diffusion and interception, and the inertia of particles. The S. aureus particle size distribution was similar to those of GSE and propolis, with a modal diameter of 0.7-0.8 mm, which is consistent with the diameters in the range 0.5-1.5 mm reported previously (Kowalski et al 1999;Harris et al 2002). The S. aureus particle number concentration was approximately one third of those of GSE and propolis.…”

Section: Air Filters Using Antimicrobial Natural Productssupporting

confidence: 89%

Treatment of Air Filters Using the Antimicrobial Natural Products Propolis and Grapefruit Seed Extract for Deactivation of Bioaerosols

Woo

Kang

Kim

et al. 2015

Aerosol Science and Technology

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Two natural products; i.e., grapefruit seed extract (GSE) and propolis, were investigated for use in antimicrobial air filters. Staphylococcus aureus was investigated as a test bioaerosol, and was deposited on the antimicrobial filters, which were treated by spraying with various areal densities of GSE and propolis. The pressure drop and particle penetration were investigated to assess the filtration performance of the bioaerosol, and the bacterialinactivation performance of the filters was evaluated by quantifying S. aureus. There was little change in the pressure drop as a function of the areal density of GSE up to 185.9 mg/ cm 2 ; however, a significant change in the pressure drop was found for the air filter coated with propolis at an areal density of 98.4 mg/cm 2 . The penetration levels of bioaerosols in both filters were uniform and in the range 1.4-2.0% (based on particle number), regardless of the areal density of the deposited GSE or propolis. The inactivation rates of the filters with identical deposition masses of GSE and propolis were similar in the ranges of 92. 1-100%, 75.2-89.1%, and 54.4-75.5% at the control filters with colony numbers of 10 3 , 10 4 , and 10 5 CFU/mL, respectively. The bacterial inactivation rate could be described by an exponential function of the areal density of GSE/propolis per number of colonies.

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Section: Air Filters Using Antimicrobial Natural Productssupporting

confidence: 89%

Treatment of Air Filters Using the Antimicrobial Natural Products Propolis and Grapefruit Seed Extract for Deactivation of Bioaerosols

Woo

Kang

Kim

et al. 2015

Aerosol Science and Technology

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“…Staphylococci are Gram positive bacteria that range from 0.5-1.5 μm in diameter and exist as irregular grape like clusters (Harris et al, 2002). These are one of the most prevalent bacteria in both human and animals (Persoons et al, 2009;Suleiman et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Occurrence of methicillin resistant Staphylococcus aureus in chickens and farm personnel in Sokoto, North-western Nigeria

Kwoji¹,

Tambuwal²,

Abubakar³

et al. 2017

J Adv Vet Anim Res

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Objective:The study was conducted to determine the presence of methicillin resistant Staphylococcus aureus (MRSA) in chickens and farm personnel in Sokoto, North-western Nigeria. Materials and method: A total of 160 samples (136 from chickens and 14 from personnel) were collected and screened for the presence of MRSA using cultural characteristics, biochemical tests and latex slide agglutination test for the presence of Penicillin binding protein 2α (PBP2α). Results: MRSA were detected in 8.82% (n=12/136) of chickens, while 14.29% (n=2/14) in farm personnel. All the isolates were positive for PBP2α. Conclusion: This study established for the first time the occurrence of MRSA in both chickens and farm personnel from poultry farms in Sokoto, Nigeria. Thus, the study provided baseline information for further studies on the epidemiology of MRSA.

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“…Asam amino glutamat dan aspartat termasuk asam amino yang bermuatan (polar) dan memiliki titik isoelektrik yang rendah sehingga mudah menangkap elektron. Haris et al (2002) menyatakan bahwa S. aureus membutuhkan 11 jenis asam amino untuk pertumbuhannya, asam amino yang paling dibutuhkan oleh S. aureus adalah tirosin. Tirosin berfungsi mengaktifkan beberapa enzim tertentu untuk digunakan S. aureus sebagai sumber nutrien dan perkursor pertumbuhannya.…”

Section: Mikroenkapsulat Pepton Ikan Hts Busuk Sebagai Media Pertumbuunclassified

Characterization Microencapsul Pepton from Spoiled By Catch Fish Using Spray Drying Methods

2017

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AbstrakHasil tangkapan sampingan merupakan salah satu hasil tangkapan yang memiliki nilai ekonomis rendah. Pemanfaatan serta cara peningkatan nilai jual hasil tangkapan sampingan yaitu dengan membuat pepton. Pepton ikan adalah produk turunan atau derivat dari hidrolisat protein yang larut dalam air dan tidak mengalami proses koagulasi pada air panas. Penelitian ini bertujuan memproduksi pepton dengan bahan dasar ikan hasil tangkapan sampingan multispesies busuk dibalut teknik mikroenkapsulasi dengan bahan penyalut maltodekstin. Berdasarkan hasil analisis mikroenkapsulat pepton HTS busuk yang dihasilkan memiliki komposisi kimia berupa kadar air 6,28%, kadar abu 9,01%, kadar protein 62,79 %, kadar lemak 0,44% dan karbohidrat 21,48%. Karakteristik kimia produk yang dihasilkan adalah kelarutan 98,87%, total nitrogen 10,05%, α amino nitrogen 1,22%, AN/TN 12,14%, kadar garam 8,04% dan pH 6,69%. Mikroenkapsulat pepton HTS busuk memiliki karakteristik fisik dengan nilai derajat kecerahan 60,01, nilai derajat putih 57,44%, dan derajat warna cenderung merah dan kuning sehingga dapat disimpulkan produk memiliki warna kuning kemerahan. Aktivitas air (a w ) mikroenkapsulat pepton HTS busuk pada kondisi penyimpanan suhu ruang selama 5 jam lebih rendah dibandingkan pepton HTS busuk tanpa mikroenkapsulasi dan pepton komersial Hasil analisis asam amino menunjukkan kandungan asam amino arginin, serin, tirosin, histidin dan treonin pada mikroenkapsulat pepton lebih tinggi dibandingkan dengan pepton HTS busuk tanpa mikroenkapsulasi dan pepton komersial. Hasil pengukuran optical density (OD) menunjukkan mikroenkapsulat pepton ikan HTS busuk memiliki pola pertumbuhan bakteri yang lebih baik jika dibandingkan pepton komersial dan pepton ikan HTS busuk tanpa mikroenkapsulasi.Kata kunci: bahan penyalut, ekonomis rendah, kelarutan, pertumbuhan bakteri Characterization Microencapsul Pepton from Spoiled By Catch Fish Using Spray Drying MethodsAbstract Spoiled by catch fish is one of catch produce that have low economic value. Utilization and how to increase the selling value of byproducts by making peptone. Peptone fish is a derivative product or derivative of a water-soluble protein hydrolyzate and does not undergo any coagulation process in hot water. This research aim is to produce peptone with spoiled by catch fish as raw materials using microencapsulation technique and maltodextrin as coating ingredients. Microencapsulate of peptone has a chemical composition with moisture content 8.95%, ash content 5.26%, protein content 62.79%, Fat content 0.44% and carbohydrate content 21.48%. The chemical characteristic peptone by-catch rotten fish indicate that product has solubility 98.87%, nitrogen total 10.05%, α amino nitrogen 1.22%, AN/TN 12.14%, salt content 8.04% and pH 6.69. Microencapsulate peptone has a physical characteristic with lightness value 60.01, whiteness value 57.44 and dominated red color value 1.70 and yellow color value 10.33. The water activity of microencapsulating spoiled by catch fish peptone at room temperature of stor...

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An introduction to staphylococcus aureus, and techniques for identifying and quantifying s. aureus adhesins in relation to adhesion to biomaterials: review

Cited by 238 publications

References 42 publications

Treatment of Air Filters Using the Antimicrobial Natural Products Propolis and Grapefruit Seed Extract for Deactivation of Bioaerosols

Treatment of Air Filters Using the Antimicrobial Natural Products Propolis and Grapefruit Seed Extract for Deactivation of Bioaerosols

Occurrence of methicillin resistant Staphylococcus aureus in chickens and farm personnel in Sokoto, North-western Nigeria

Characterization Microencapsul Pepton from Spoiled By Catch Fish Using Spray Drying Methods

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