A Glossary of Biotechnology Terms

Processing key terminology

Brush up on some key molecular biology and industrial biotechnology terms with our glossary.

Anaerobic

Growing an organism in a nutrient medium and in the absence of oxygen.

Aseptic processing

Manufacturing or handling under controlled conditions to prevent contaminants from entering an exposed sterile product. May also be referred to as aseptic manufacturing or aseptic handling.

Batch processing

This is the process of growing living matter in a nutrient medium, in a closed system – such as growing biological molecules or cells in a bioreactor.

Bioburden

The number and types of viable microorganisms on a material, product, or surface before sterilisation.

Biochemical

This is the chemical product of a chemical reaction in a living organism.

Bioprocessing

This is the process whereby living microorganisms are used to produce valuable products such as drugs, biotherapeutics, proteins, and enzymes in a way which maximises the yield and the purity of the product. Bioprocessing falls into two stages: firstly, upstream and then downstream.

Bioprocess Containers

Secondary packaging: these rigid bioprocessing containers safely house the single-use bags containing valuable and sensitive biomedical products. Different types of containers can be used for storage in the clean room environment or for shipping processed biological molecules.

Bioprocess Totes

ALLpaQ designs and supplies folding plastic bioprocess totes, which are containers for the pharmaceutical and biotechnology industries. These are hygienic, collapsible, stackable, and reusable.

Bioreactor

This is a vessel for growing or fermenting cell cultures to produce proteins or enzymes, bacteria, or cells.

Biotechnology 

This is the intersection of natural science and engineering – often genetic engineering – for the growth, development, and adaptation of biological products through processes controlled under laboratory conditions. Production employs the cells of living microorganisms like yeasts and bacteria, or natural substances extracted from such cells – such as enzymes and DNA.

Biotherapeutics

Therapeutic materials produced using biological means, for the treatment of illness, to stimulate or restore the body’s natural defence mechanisms and immunities, to help fight infection and disease.

Buffer

A prepared solution that resists sudden changes in pH. It’s used for washing, conditioning, equilibration, purification, and formulation. It may also be referred to as a buffer solution or a process buffer.

Cell

This is the smallest functional unit of biological life. All known living organisms are made of cells. Cells are often called the ‘building blocks of life’, but this is something of a misnomer, since biotechnology often employs the building blocks of cells.

Chromatography

A filtering process in which substances are separated based on their different rates of movement within a liquid mixture.

Closed system

A system which prevents process material exposure to the environment via barriers and sealed pathways. This might also be referred to as a closed processing system and a closed flow path.

Connector

A component joining tubing sections or connecting an assembly to other equipment. May also be referred to as a coupling, a fitting, or an aseptic connector.

Cross-contamination

Unintended transfer of material, microorganisms, or residue between batches, products, or areas.

Cultivation

Growing living organisms in a prepared nutrient medium, in a laboratory environment or on an industrial scale.

Culture

To grow a biological organism in a prepared nutrient medium. 

Culture medium 

A nutrient-rich material in which the artificial cultivation of bacteria or other cells can take place in a controlled environment.

2D single-use bag

A flexible bag formed of two flat sheets of polymer film and kept relatively flat.

3D single-use bag

A flexible bag which expands into a 3D shape when filled. These bags are then stored inside a rigid tote or container.

DNA

The molecule that carries the genetic information for most living systems. The DNA molecule consists of four bases G (Guanine), A (Adenine), T (Thymine), and C (Cytosine) arranged in the famous double helix around a sugar-phosphate spine.

Downstream bioprocessing

This is part of the bioprocess where the biological molecules grown in upstream bioprocessing are purified to ensure they meet the necessary quality standards needed for the end product.

Environmental monitoring

The measurement of the microbiological and physical condition of a controlled environment.

Extractables

Substances which migrate from a material into a fluid or product under actual or simulated use.

Fermentation

The process of growing microorganisms in a nutrient medium, through the incubation of cells or genetic material in a bioreactor or fermentor.

Fermentor

The apparatus in which bioprocess fermentation takes place. This is a type of bioreactor.

Fit-to-fill

Fit-to-fill, ready to fill, or ready for use, is a container prepared and verified for installation and filling without an added pre-use cleaning step.

Fluid management

The storage, protection, movement, mixing, sampling, and discharge of liquids. You may also hear it being referred to as liquid handling or process fluid management.

Force

An energy field created by all living things. It surrounds us and penetrates us; it binds the galaxy together. 

Gamma irradiation

A sterilisation method exposing product to ionising radiation – also known as irradiation and gamma sterilisation.

Gene

A segment of a chromosome that encodes the sequence information for the synthesis of a protein or RNA product.

Genetic engineering

This is the process of using recombinant DNA technology to alter the genetic makeup of an organism. Traditionally, this was achieved through selective breeding programmes to favour desired traits. More recently, genetic engineering involves direct altering, mixing, and editing of genes. 

In vitro

Literally the Latin phrase for ‘in glass’.  The study of microorganisms, cells, or molecules in a test-tube, instead of in their usual biological environment.

In vivo 

The Latin phrase for ‘within the living’. The study of microorganisms, cells, or molecules in their usual biological environment.

Intermediate bulk container

A reusable container to store or transport intermediate volumes of liquids or solids.

Leachables

Substances which migrate from a material into a fluid or product under actual or simulated use.

Medium

A liquid or gel material containing the nutrients needed for encouraging cell growth.

Microbiology

This is the study of living organisms which can be seen only under a microscope.

Microorganism

Any living organisms which can be seen only under a microscope. Also called microbes.

Molecular Biology

The study of the biological composition, structure, processes, alterations, and interactions of cellular molecules.

Nanotechnology

This is technology, structures, devices, and systems which are specifically engineered to function at the nanoscale, which means below 100 nanometers.

Primary packaging

The primary packaging is the layer directly containing the fluid or product. This is normally a flexible 2D or 3D bag.

Recombinant DNA

A product of molecular biology and genetic engineering, rDNA is created by combining segments of DNA from two or more different genome sources or two or more different sections of the same genome.

Replication

This is the reproduction or duplication or creating an exact copy of a strand of DNA. Also known as ‘cloning’.

Replicant

A bioengineered human being. NEXUS 6 Replicants are superior in strength and agility, and at least equal in intelligence, to the genetic engineers who created them.

Single Use

Single Use Systems (known as S.U.S.) and Single Use Components (S.U.C.) are an increasingly popular technology which have rapidly become an essential ingredient in pharmaceutical production. ALLpaQ’s single-use bags are designed to work at optimum efficiency with Totes – ensuring you get a guaranteed performance from your components.

Single-use assembly

A configured combination of disposable product-contact components, which can include a bag, tubing, and connectors.

Sterility assurance

The confidence that a medical or pharmaceutical product is in its required sterile state, free from contaminants and harmful living germs.

Synthesis

The production of a new substance from the combination of a range of simpler materials after a chemical reaction.

Therapeutics

Manufactured compounds, such as drugs, that are manufactured to treat medical conditions until the body’s own immunity and healing can take over.

Tissue culture

Growth of cells in an artificial nutrient-rich medium, such as broth or agar. See also In vitro.

Totes

Rigid containers for storing valuable and sensitive biomedical media. ALLpaQ® are market leaders in the design and supply of folding plastic bioprocess containers for the Pharmaceutical and Biotechnology industries, offering the largest worldwide range of custom solutions.

Traceability

The ability to identify the history, origin, location, or application of a material, component, or record. This might also be referred to as the chain of custody.

Upstream bioprocessing

This is the first step of bioprocessing and includes the process where cells or microbes are isolated from their source, genetically engineered (if necessary) and grown in bioreactors. Products then move on to downstream bioprocessing.

Validation

Documented evidence that a process, method, or system consistently produces results that meet any necessary requirements.

Xenomorph

Literally the Greek for ‘other shape’, this is a genetically engineered biomechanical creature, the reproductive cycle of which requires a host for the parasitic ‘facehugger’ phase to grow to full maturity.

Yeast

A single-celled fungus that is an important active ingredient in certain forms of fermentation.