Shared Flashcard Set

Details

lecture 1
lecture 1
16
Chemical Engineering
Graduate
12/02/2013

Additional Chemical Engineering Flashcards

 


 

Cards

Term
What is classical strain development dependent on?
Definition
overproduction
Term
Name 3 systems used to produce recombinant biopharmaceuticals and list in order of usage percentage in terms of manufactuering from highest to lowest? of the three systems which one was first utilized in biopharmaceutical production and which of the three systems requires the least amount of to produce usable levels of protein
Definition
E. coli
Term
why are microbes used to manufacture recombinant proteins
Definition
speed of introduction of heterologous gene, level of gene expression (reduces purification costs), industrial expertise
* containment of gmos
* speed of host engineering
* microbial diversity
* wealth of genomic genetic data
Term
product and process volume as well as product value is____
Definition
determined by markets
Term
What are 4 factors that drive markets for industrial biotechnology
Definition
economic - societal, reduced environmental impacts
rate yield productivity purity
importance of inexpensive substrates, growht media design
Term
process development and ___ are essential to obtain a competitive commercial product
Definition
optimization
Term
list 4 types of biocatalysts used in commercial biomanufacturing? why are these considered "green" biocatalysts? briefly explain the impact of the ability to patent isolated DNA sequences on development of each type of biocatalyst
Definition
1. whole cells
2. immobilized cells
3. synthetic cells
4. invitro transltion system s

low environmental impact, reduced capital operating costs for manufacturing,
chiral drugs must have high enatiomeric purity
Term
list 4 advantages and disadvantages of biocatalysis versus chemical catalysts
Definition
1. stereo and regio selective
2. low temperatures required
3. low energy consumption
4. active at pH 2-12

1. unstable at high temps and extreme pHs
* expensive
cause alaergies
inhibited by some metal ions
Term
what two processes are combined as a type of biocatalyst? what is an example of an in vitro translation system?
Definition
1. whole cells
2. immobilized cells
3. synthetic cells
4. in vitro translation systems
5. partially purified, purified enzymes
6.CLECs
7. combined chemosynthesis + biosynthesis processes

acellular protein synthesis
Term
Industrial biocatalysts are engineering for ____, ____, and _____
Definition
activity, efficiency, stability
Term
Where are useful cultures/genes found for novel enzymes?
Definition
International (public) culture collections
private culture collections
black market
global environmental samples
extreme environmental niches
Term
compare/contrast traditional and metageneome/bioprospecting screening strategies
Definition
traditional appoaches
* discover new microbes, enzymes, pathways by screening bias, growth selection, sample from new environments
* alter growht optima by pH temperature, salt tolerance
* screening the metagenome by PCR vs laboratory cultivable organisms to find new enzymes with novel properties
* directed enzyme evolution engineering + other strategies
Term
chemoselectivity
Definition
selective reactivity of one functional group in the presence of others
Term
stereoselectivity
Definition
a single reactant forms an unequal mixture of stereoisomers
Term
regioselectivity
Definition
the preference of one direction of chemical bond making or breaking over all other possible directions
Term
enatioselectivity
Definition
one of 2 stereoisomers that are mirror images of each other that are non superposable
Supporting users have an ad free experience!