News & Press

Drug Development

Our expertise lies in the manufacture of the equipment and highly effective depth filter media that can reduce bioburden, endotoxins and other particulates as well as color and odor. These include sanitary design, validated pharmaceutical grade lenticular format filter cartridges and filter pads and sanitary design filter housings.

Choice of Sanitary Materials for Pharmaceutical Applications

In virtually all sterile or sanitary applications the first choice of materials for hardware construction is stainless steel. Use of this material throughout the pharmaceutical and food and beverage industries is extensive and includes storage and transfer vessels, piping, valves, pumps, etc. It was included as a requirement in the proposed CGMP for Large Volume […]

Filtration of Active Pharmaceutical Ingredients

When derived from fermentation, the first step in the manufacturing process for Active Pharmaceutical Ingredients, for example, antibiotics, is the separation of the cell mass from the liquor containing the active ingredient. The extraction process is achieved through the use of solvents and precipitation followed by filtration for removal of the large remainder of particulates, […]

Filtration of High Fructose Corn Syrup

Sweeteners are the food additive used in the greatest abundance compared to other additives that include substances for spoilage prevention, taste, appearance, texture, etc. Among the sweeteners, fructose, notably high fructose corn syrup, plays a prominent role. It is a monosaccharide that is approximately 75% sweeter than sucrose, or cane sugar. Its many attributes, according […]

Silicone Filtration

“Silicone”. Sounds like silicon. Silicon is one of the more widely distributed elements in our natural environment. Think of sand and one of its major commercial derivatives, glass, in the form of silicon dioxide, and as the foundation of virtually all semiconductors, hence the name, “Silicon Valley”. But silicon is also the important element in […]

Filtration of Ink

Think about ink! If we do at all we probably don’t think beyond our noses. Newspapers,
magazines, notes written with ballpoint pens, even the e-mail that we print out in despite the drive toward a paperless society. Think Ink! Think Ink! These are the uses of inks that are most familiar to us. But the world […]

Pak Filter Housing

The lenticular filter cartridge format was invented by Alsop Engineering in the 1940s. Today, ErtelAlsop continuously improves upon this innovation. With its totally enclosed design, it is the perfect alternative to the plate and frame filter press. Since Pak® Filter cartridges are comprised of the same filter media used in plate and frame filtration, existing […]

Filtration Of Flavors

The blending of essential oils or flavorings with alcohols or aqueous base liquids can result in the formation of haze or precipitates in the final product. For many years, depth filter media has been the primary means of polishing these liquids prior to filling. ErtelAlsop grades M‐40, M‐45, M‐50, M‐404, M‐454 and M‐504 in 8‐inch, […]

Filtration of Gelatin

Gelatin is a multi-use natural product. It is made from the partial hydrolysis of collagen derived from the skin, connective tissues and bones of animals. It finds application in foods, pharmaceuticals (capsules and coatings), medical dressings, photographic emulsions, cosmetics and many other commonly used products. The quality required for each application varies but in general […]