نتایج جستجو برای: culture free supernatant

تعداد نتایج: 783038  

2016
San-Lang Wang Hsin-Ting Li Li-Jie Zhang Zhi-Hu Lin Yao-Haur Kuo

The culture supernatant of Paenibacillus sp. TKU036, a bacterium isolated from Taiwanese soils, showed high antioxidant activity (85%) when cultured in a squid pen powder (SPP)-containing medium at 37 °C for three days. Homogentisic acid (2,5-dihydroxyphenylacetic acid, HGA) was isolated and found to be the major antioxidant in the culture supernatant of the SPP-containing medium fermented by P...

2017
Ali Abdelmoteleb Rosalba Troncoso-Rojas Tania Gonzalez-Soto Daniel González-Mendoza

The ability of Bacillus subtilis, strain ALICA to produce three mycolytic enzymes (chitinase, β-1,3-glucanase, and protease), was carried out by the chemical standard methods. Bacillus subtilis ALICA was screened based on their antifungal activity in dual plate assay and cell-free culture filtrate (25%) against five different phytopathogenic fungi Alternaria alternata, Macrophomina sp., Colleto...

Journal: :Infection and immunity 2000
B Lei S Mackie S Lukomski J M Musser

Extracellular proteins made by group A Streptococcus (GAS) play critical roles in the pathogenesis of human infections caused by this bacterium. Although many extracellular GAS proteins have been identified and characterized, there has been no systematic analysis of culture supernatant proteins. Proteins present in the culture supernatant of strains of serotype M1 (MGAS 5005) and M3 (MGAS 315) ...

عبدالهی , سیدحسین, کاظمی عرب آبادی , محمد,

Background and Purpose: Many studies report that Toxoplasma gondii excreted / secreted antigens (E/SA) appear to be a suitable marker for toxoplasmosis serodiagnosis. Most of these studies have used E/SA, obtained from supernatant of Toxoplasma cell culture, or by incubating tachyzoites in cell free media (RPMI-1640). The present study for the detection of Toxoplasma IgG in human serum was ev...

2010
Shu Guan Lihong Zhao Qiugang Ma Ting Zhou Ning Wang Xinxu Hu Cheng Ji

Aflatoxin B(1) (AFB(1)) is commonly found in cereals and animal feeds and causes a significant threat to the food industry and animal production. Several microbial isolates with high AFB(1) transformation ability have been identified in our previous studies. The aim of this research was to characterize one of those isolates, Myxococcus fulvus ANSM068, and to explore its biotransformation mechan...

Background: Silver nanoparticles have been widely used in various biomedical applications and drug delivery systems. The biosynthesis of nanoparticles has been proposed as a cost effective environmental friendly alternative to chemical and physical methods. In the present study, synthesis of nanoparticles using a novel Nocardiopsis sp. AHA2 has been attempted. We used culture supernatant of Noc...

2006
Vina W. Yang Carol A. Clausen

In recent years, public concern about indoor mould growth has increased dramatically in the United States. In this study, lactic acid bacteria (LAB), which are known to produce antimicrobial compounds important in the biopreservation of food, were evaluated to determine if the same antimicrobial properties can be used to inhibit mould fungi that typically colonize wood. Based on biomass measure...

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