New turbidimetric assay for quantitation of viable bacterial densities

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

New turbidimetric assay for quantitation of viable bacterial densities.

A turbidimetric assay was developed and validated against Escherichia coli for the quantitation of viable bacterial densities. The Abbott MS-2 research system was employed for continuous 5-min measurements of optical density. A linear standard curve was obtained by regressing the initial bacterial density (log CFU per milliliter) against the time required for bacterial growth causing a 5% decre...

متن کامل

Simple method for quantitation of viable mycoplasmas.

A rapid, simple, and inexpensive method for quantitation of viable mycoplasmas is described. Serial dilutions were made in sterile microtiter plates with standard microtiter equipment. The results were multiplied by a factor of 2.38 to obtain colony-forming units comparable to those obtained with the laborious glass pipette-tube dilution method.

متن کامل

Improved turbidimetric assay for lysozyme in urine.

I describe an improved turbidimetric assay for lysozyme in urine. This method is simple, reproducible, linear over a 100-fold concentration range, sensitive to concentrations as low as 10 micrograms/L, and only commercially available products are required. Evaluation of urinary lysozyme concentration with this assay demonstrated a within-run and between-run CV of 9.9% and 4.8%, respectively, fo...

متن کامل

A turbidimetric method for the assay of hyaluronidase.

A variety of methods have been devised for the assay of the enzyme hyaluronidase. These may be divided into four types: (a) measurement of the “spreading effect” in the skin of rabbits and guinea pigs (1, 2), (b) reduction of viscosity (3,4), (c) prevention of mucin clot formation (5), and (d) chemical measurement of total reducing substances, N-acetylglucosamine, or glucuronic acid liberated o...

متن کامل

Turbidimetric method for the assay of antiviral antibodies.

A rapid, simple assay method has been developed for antiviral antibodies. The technique has been applied to antisera, immune gamma-globulins, and immunospecifically purified antibody for two strains of influenza virus, Asian 305 and PR8, and to antisera to tobacco mosaic virus. Turbidity changes due to the specific interaction of a virus with its antibody were measured by the increase in optica...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Antimicrobial Agents and Chemotherapy

سال: 1993

ISSN: 0066-4804,1098-6596

DOI: 10.1128/aac.37.2.371