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Listing articles 61 to 70 of 75

Departments: Air Sampling 101

Proactive companies from all sectors; pharmaceutical, food and beverage, biotechnology, hospitals and environmental protection, are realizing the importance of an active air sampling program. There are several options in sampling methods, some more efficient than others.

Departments: Choosing a Laboratory Water System

Food analysis laboratory needs for purified water tend to be modest in quantity but demanding in quality. Food analytical methods call for two general water quality grades, pure and ultrapure. To meet purified water needs, cost-conscious laboratories consuming up to 15 liters of water per day must choose from among several options…

Departments: Machine Vision Sees Contaminants We Can’t

Scientists at the ARS Instrumentation and Sensing Laboratory in Beltsville, Md., are developing "machine-vision" systems that can detect contamination the human eye often can't see called machine-vision systems. These are quicker and more accurate than the human eye and don't require anyone to handle the fruit or cut it up.

Departments: Rapid Analysis of Softdrinks

Soft drinks are widely consumed throughout the world. Maintaining and confirming the quality and consistency of a given product from many individual bottling plants is a considerable challenge for central quality control laboratories. The complexity and variety of these samples compound the challenge further. Numbers of samples analyzed each year can reach into the tens of thousands making analysis time important. For example, 10,000 samples analyzed by high performance liquid chromatography (HPLC) at a...

Departments: New Generation Testing Platforms

In the last few years, technological advancements of DNA detection systems, more commonly known as polymerase chain reaction (PCR) technology, have been remarkable. In fact, parallels can be drawn to the computer industry, where technology that was cutting edge as little as four years ago, barely meets our most basic expectations today.

Departments: Meeting the Need for Speed

Collecting data in a busy lab is always important, and when that lab is testing product for potentially lethal microbes, obtaining accurate data is imperative to public health and commercial success. It is equally important to accurately record, store and report that data.

Departments: Filtration Knocks Out Deadly Bacteria in Nursery

The presence of Enterobacter sakazakii in powdered infant formula has been of serious concern because of recent outbreaks of infectious diseases. The FDA has determined that powdered infant formula has been the source of one-half to two-thirds of the infections caused by this bacterium. One study that sampled 141 cans of various brands of powdered formula concluded that E. sakazakii was present in 14 percent of the samples. In 2002, the FDA recalled 1.5 million cans of powdered infant formula because of...

Departments: Separating the In from the Out

More than the people or the equipment, the one element virtually guaranteed to contact food during processing is the air inside the plant. Indoor air can become the vector that delivers contaminants to food and food contact surfaces. HVAC systems are critical control points (CCPs) in ensuring that food production remains safe from pathogens, allergens and other airborne contaminants.

Departments: Wine Producer Gets Efficient Scheduling with LIMS

The implementation of a new laboratory information management system (LIMS) has expedited sample logging, analysis and results distribution for a large wine producer, saving time and enabling more efficient scheduling. The custom LIMS used in the past was basically an electronic version of the company's previous paper-based system, requiring manual data entry at nearly every stage of the analysis cycle. The company, a customer of PerkinElmer Instruments (Shelton, Conn.) requesting anonymity in for this...

Departments: LIMS Fits Labs

Improving and advancing its information management system was the primary goal for DonLevy Laboratories, a Merrillville, Ind.-based contract microbiology lab and consulting organization dedicated to the food industry. That goal was the primary focus for laboratory manager Peg Exo, who supervises DonLevy's lab operations, including the production of sample labels, bench sheets, analytical reports and invoices. To meet customer expectations, Exo found herself maintaining an increasingly vast collection of...

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October/November 2014

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