Biological Products

Purification Techniques for Biological Products

The purification of a biological product, e.g. an antibiotic, a vitamin, or a recombinant protein, from fermentation broth or cell culture supernatant is an important part of biotechnological manufacturing. Downstream recovery represents a large part of the product cost and therefore efficient and robust separation techniques are essential for the production of biological products. Recovering a...

Guideline on similar biological medicinal products

Biological Variance in Agricultural Products Theoretical Considerations

The food that we eat is uniform neither in shape or appearance nor in internal composition or content. Since technology became increasingly important, the presence of biological variance in our food became more and more of a nuisance. Techniques and procedures (statistical, technical) were developed. The most widely used are sorting or grading on large-scale operations. Statistical rules were d...

Biological Variance in Agricultural Products Experimental Examples

Based on the colour development of tomatoes (theoretical) and apples (measured) as an example the approach to biological variance from a new perspective is made more clear and more explicit. The origin of biological variance is traced back to the stage of maturity at the moment of harvest. By modelling the colour development of individual units in a batch in a generic fashion, and using this mo...

Investigating of the methods used to find external agents in vaccines and biological products

multiple technological levels the necessity of developing vaccine quality control systems is one of the requirements of our  country Coordinated tests of the absence of externous agents in biological substances are considered as a major international concern for veterinary vaccines. Exogenous agents such as Newcastle disease virus, avian leukosis virus, infectious laryngotracheitis virus (ILTV)...