Biopharmaceutical plants accounts a major amount of production of all medicines required by the customers. But the major challenge faced by them is that they are using resources belonging to animal origin. To meet the growing demand of market, therapeutic proteins obtained from animal tissues are not sufficient. Substitutes for this are to be searched for the further expansion of Pharmaceutical engineering.

The solution for this challenge is found out by modern biotechnology. They have created genetically engineered plants which has the ability to substitute animal resources. These genetically engineered plants have the capability of producing affordable medicines which can meet the growing demand. They can produce recombinant proteins which includes cytokines, blood product alternatives, mammalian antibodies, vaccines and several curative agents. Biotechnology has contributed a lot to Pharmaceutical engineering.

Proper gene expression system and host selection is mandatory for biopharmaceutical plants. The drug development procedure starts from incorporation of DNA of intended molecule into the specified host plant. This process replicates the target molecule during its growth. During the refinement and revival process, antibodies are produced in the host plant. This procedure has proved its proficiency and is eye-catching for pharmaceutical industries. Biopharmaceuticals is able to meet the growing demand because of the efficient methods like storing, processing and existing crop harvesting.

Use of genetically engineered plant for the manufacture of drugs is a recent development of Biotechnology but it has the potential to take the world of Pharmaceutical engineering to new heights. It has all the qualities indispensable for  large scale drug development like less preliminary investment, simple recuperation, safety, proper purification etc. It has increased the production to many folds. Yet Biopharmaceutical plants cannot completely depend upon genetically engineered plants for drug development as this technology is very new and not completely expanded.