WorksheetsDownstreaming process
Total questions: 15
Worksheet time: 8mins
Chemically penicillin is _______
6-Nitro Penicillanic acid
6-amino penicillanic acid
Beta lactam
thiozolidine
Which of the following is better fungus for penicillin production?
Penicillium notatum
Penicillium arborium
Penicillium chrysogenum
Streptomyces griseus
Which of the following is essentially required in penicillin production?
Glucose
Potato dextose
Barley
Corn steep liquor
Precipitation of proteins is carried out by _________
Agarose
Polyethylene glycol
SDS
Buffer
Which of the following improves filtration?
More cell mass
Diatomaeceous earth
Whatmann filter paper
Aeration
Which of the following filter is used to filter low solid content?
Pressure leaf filter
Rotary vacuum filter
Plate and frame filter
Filter can't be used
When you are supplying broth for filtration, what do you think, which type of flow of broth is favored in rotary vacuum filter?
Downward flow
Upward flow
Tangential flow
radial flow
Flocculation is not carried out by ________-
Increasing hydrophilicity
Decreasing hydrophilicity
increasing hydrophobic nature
neutralization of charges
Osmotic shock favours _______
aeration
Cell flocculation
Cell disruption
Filtration
separation of mycelia is carried out by_______
Rotary vacuum filter
Disc bowl centrifuge
tubular bowl centrifuge
Basket centrifuge
Concentration of alcohol after extraction is 50mg/lit from broth with 1000mg/lit conc of alcohol. What will be distribution coefficient?
20
0.05
5000
Can't say
Which extraction system is used to extract penicillin?
Solid liquid extraction
Whole broth processing
Liquid liquid extraction
Liquid soild extraction
I want to separate IgG from broth, which method is suitable for extraction and purification
use of filtration
Use of ion exchange chromatography
use of affinity chromatography
Use of gel permeation chromatography
Streptomycin is extracted from broth by ____
Liquid liquid extraction
Ion exchange resins
Binding with cells
simple filtartion
How will you quantify the effect of antibiotic resistance
Ditch plate technology
Agar cup assay
Serial dilution technique
Enrichment in broth
