Environmental Engineering

Biocatalysis for Green Chemistry and Chemical Process by Junhua (Alex) Tao, Romas Joseph Kazlauskas

By Junhua (Alex) Tao, Romas Joseph Kazlauskas

This booklet describes contemporary growth in enzyme-driven eco-friendly syntheses of industrially very important molecules. the 1st 3 introductory chapters review fresh technological advances in enzymes and cell-based adjustments, and eco-friendly chemistry metrics for man made potency. the remainder chapters are directed to case stories in biotechnological construction of prescription drugs (small molecules, average items and biologics), flavors, perfume and cosmetics, nice chemical substances, value-added chemical compounds from glucose and biomass, and polymeric materials.The booklet is aimed to facilitate the economic purposes of this strong and rising eco-friendly expertise, and catalyze the development of the expertise itself.

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The major advantages of SPPS and hybrid concepts are the straightforward approach to longer peptides, and the excellent scalability up to ton scale. However, a considerable drawback is the high material flow, and as a consequence, the environmental impact. 8 shows an example of the material flow for 20 kg of a 10-mer and 100 kg of a 35-mer peptide manufactured by SPPS. Manufacture of peptides by recombinant technologies is a highly promising approach to the environmental problem. , insulin) and a growing number of new processes, the development of a recombinant process for peptides remains a difficult task, which is considered viable only when high volumes are required.

The elongation process is followed by a cleavage/deprotection step, in which the product is cleaved from the solid support, and at the same time, the protecting groups are also cleaved from the molecule (backbone, bases, 2 -deprotection). , 2 -tert-Butyldimethylsilyl (2 -TBDMS), or 2 -Triisopropylsilyloxymethyl (2 -TOM)). 3. The previous cleavage/deprotection step leads to a solution of the crude oligonucleotide, which is then purified by chromatography, either HPLC (high performance liquid chromatography) on reverse phase resin or ion exchange chromatography.

12. Prevent waste Design safer chemicals and products Design less hazardous chemical syntheses Use renewable feedstocks: Use raw materials and feedstocks Use catalysts, not stoichiometric reagents Avoid chemical derivatives Maximize atom economy Use safer solvents and reaction conditions Increase energy efficiency Minimize the potential for accidents Design chemicals and products to degrade after use Analyze in real time to prevent pollution 26 HOW GREEN CAN THE INDUSTRY BECOME WITH BIOTECHNOLOGY?

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