Biochemicals/Raw Materials

BVDV Risk Mitigation: Dealing with Bovine Viral Diarrhea Virus in Serum

Bovine serum products such as fetal bovine serum (FBS) are critical, nutrient-rich supplements frequently used in cell culture systems for a number of applications, including biotechnology, animal and human pharmaceutical and diagnostic manufacturing, and life-science research. Serum can be contaminated with adventitious agents that could increase its risk for use in cell culture systems. Bovine viral diarrhea virus (BVDV) is one of the most significant infectious diseases in the livestock industry worldwide because of its high prevalence, strong persistence, and…

Brazilian JBS Federally Inspected Fetal Bovine Serum

Serum is the most commonly used supplement in cell culture. Fetal bovine serum (FBS) is the common choice because it contains high concentrations of growth factors and other important signaling molecules (e.g., adhesion proteins, nutrients, carrier proteins, cytokines, and hormones) required for cell survival and differentiation together with its buffering capabilities. FBS production begins with the collection of whole blood from bovine fetuses under aseptic conditions. Once collected, the blood is allowed to clot, and the serum is mechanically separated.…

Upstream: Make the Right Decisions for Your mAb

Bioprocess decisions made during upstream operations can be difficult to reverse at later, more costly stages of biologic manufacture. They even can require significant backtracking, wasting precious time, labor, and material. Read this Special Report to learn ways to optimize monoclonal antibody bioprocessing upstream. Specifically, you will learn about different tools that small and emerging biotechnology groups can use to ensure robust cell-line selection novel media formulations designed for intensified upstream processing in perfusion modes mixing and delivery solutions that…

A Challenging Future for Fetal Bovine Serum

Serum and other blood-derived products have been used widely in pharmaceutical research for many years. Use of these materials has contributed to many different advances in human and veterinary health, and they continue to have an important role in drug development. Fetal bovine serum (FBS) has had a specific role in the culture of mammalian cells for over 60 years. It is proven to be a useful tool for a broad spectrum of applications because it supports a large range…

Inactivation of Enveloped Viruses: Seeking Alternatives to a Problematic Surfactant

Triton X-100 detergent makes an interesting case study in bioprocess sustainability strategy. Also known as octylphenol ethoxylate (OPE), this nonionic surfactant has many uses in biopharmaceutical research and development. Among other laboratory applications, it is used to lyse cells and DNA in research, to solubilize membrane proteins and decellularize animal-derived tissues, to reduce the surface tension of aqueous solutions during immunostaining, and to remove sodium dodecyl sulfate (SDS) from polyacrylamide gel electrophoresis (PAGE) gels for analysis. It also serves as…

eBook: Raw Materials Quality, Processing, and Storage — A Manufacturing Case Study

Raw material storage, handling, and processing are essential to ensure high product quality and consistent process performance. Slight variabilities in raw materials (either inherent in the material or through processing) can compromise yield and even result in batch loss. On Tuesday 26 September 2017 speakers at the BioProcess International Conference (part of Biotech Week Boston) addressed raw material variability and control strategies in biomanufacturing. They discussed the industry’s initiative for raw material risk assessments and strategies to control variability by…

Enhanced Galactosylation of Monoclonal Antibodies: Using Medium Supplements and Precursors of UDP-Galactose, Part 1

The biopharmaceutical industry needs better understanding of how monoclonal antibody (MAb) glycosylation is influenced by components in cultivation media — and it needs methods to exert some control over the structure of MAb glycans. That structure can affect MAb function. Thus, a high-throughput (HTP) assay is needed for characterizing MAb glycosylation so that developers can observe the effects of cultivation conditions on MAb glycosylation rapidly, with a goal of producing MAbs that have a desired glycan structure. The method also…

Addressing the Challenge of Complex Buffer Management: An In-Line Conditioning Collaboration

Preparation and storage of buffers is a challenge for biopharmaceutical companies developing protein-based pharmaceuticals. The need for volumes of buffer to purify increasing upstream titers have become a major bottleneck in biopharmaceutical downstream processing. Italian biopharmaceutical company Kedrion Biopharma collects and fractionates blood plasma to produce plasma-derived therapeutic products for treating and preventing serious diseases, disorders, and conditions such as hemophilia and immune-system deficiencies. To expand its offerings and include the immunoglobulin G fractionate of blood plasma (IgG, an antibody…

Buffers in Biologics Manufacturing

Biotechnology has enabled commercialization of protein-based drugs including insulin, growth factors, blood factors, and antibodies. Production and purification of such biologic products require different buffers for pH control and stabilization of reactions in different steps during biomanufacture. These processes include cell culture production (the “upstream” phase), purification (the “downstream” phase), and a final phase in which excipients are introduced to the drug substance to create a drug product (“formulation and storage”). In upstream processes, buffers are primarily used for their…

Setting Raw-Material Specifications Using Prediction Models: Determination of a Specification Limit for a Raw-Material Impurity in mPEG-Aldehyde

Impurities related to raw materials used for bioproduction can be inadvertently introduced into a manufacturing process, causing potential failure to meet in-process controls or release specifications. Unexpected impurities also can reduce yield and affect the quality, safety, and effectiveness of a final product (1). Raw-material impurities can originate from starting components or reagents used in manufacture. They can be generated in situ during synthesis or as degradation products. Impurities also can result from improper handling, packaging, and storage. Identification and…