Author Archives: situadmin

Hero of Aquatic Toxicology: The Fathead Minnow

What is aquatic toxicology testing? Aquatic toxicology testing evaluates the direct impact a substance has on living organisms in aquatic environments. This field of study includes freshwater, marine water, and sediment environments. Chronic or acute toxicity can be measured in algae, crustaceans, fish, oligochaete, daphnia and other small invertebrate aquatic organisms. These tests measure endpoints […]

Bioaccumulation: A Slow Death

What is bioaccumulation? Bioaccumulation refers to the accumulation of substances in living organisms.  Many organisms may be exposed to toxic substances that find their way into sediment or aqueous environments. Depending on the bioaccumulation potential of these toxic chemicals, they may build up in organisms’ tissues and internal structures. This process presents serious threats to […]

FDA Bans Triclosan From Over-the-Counter Antibacterial Hand and Body Washes

Triclosan Banned from Consumer Hygiene Products Antimicrobials are chemical additives used for the preservation of products from microorganisms such as bacteria or fungi, and inhibition of cosmetic and hygiene issues created by the growth of these microorganisms.  There are many antimicrobial products registered for use in both industrial and consumer products.  Generally, their use and […]

Plants vs. Fungi: Inherent Antimicrobial Activity

Fungi fight back…  Situ Biosciences – Microbial Test Experts There is a war being waged by the microorganisms around us.  New research has shown that fungi have evolved proteins that help it avoid plant defenses against microbes.  This research provides another amazing example of the subtle interplay that occurs in nature between a host and the […]

MIC and Arsenic, extremes in bacterial life

 Arsenic isn’t always a poison… Some of the first letters learned in our earliest biology and chemistry classes are H, C, O, N, S and P, which are the single letter notations from the periodic table for elements Hydrogen, Carbon, Oxygen, Nitrogen, Sulfur and Phosphorus.  These elements are essential and represent the most basic building […]

Biodegradation Testing for Consumer and Industrial Products

Biodegradability has become a valued characteristic for products in the market place. Suppliers and manufacturers have the choice to develop and sell biodegradable products, and end-consumers are responding to these choices.  However, to claim that a product is biodegradable, a few additional steps are required.  Except for the simpliest products, part of the product development and marketing […]

Loving the Cold: Microbes from the Archeozoic Eon

On a snowy winter day there is nothing better than sitting next to a warm fire with a hot beverage dreaming of Cayo de Aqua beaches in Venezuela; however, in reality over 80% of the Earth never reaches above 5°C (3). Even more distant from our thoughts is that many microorganisms inhabit these inhabitable landscapes […]

Antimicrobial Testing – Exceeding the Standards

Electronic Equipment – From individual components to entire assemblies, electronic equipment can present a favorable environment for microbial growth Fuels and Lubricant – Storage, use, and disposal of fuels and lubricants can be impacted by microbes, whether the need is to prevent microbial growth or to encourage microbial consumption Textiles – Used in harsh conditions […]

Biodegradation Testing and Product Claims

Raw Materials Even for naturally sources materials, biodegradation testing may be required prior to acceptance. Formulations Biodegradation is not a calculation – testing a product’s performance before deciding which formulation works as intended can potentially save a lot of time and effort down the line. Finished Products The finished product as it would be delivered […]

Personal Care Preservation & Performance Testing

Steps to Reducing and Preventing Microbial Contamination Microbial Screening Microbes can grow nearly everywhere – make sure the production lines, raw materials, and packaging are as clear as possible before filling orders Durability Testing a products performance for a specific environment. Can be heat, UV, moisture, etc; make sure to test in similar conditions, not just with standard […]