Hira Mehboob Mirza

7 Questions 11 Answers 0 Followers

Questions related from Hira Mehboob Mirza

How to make stock solution of peptide antibiotics?

I have 100 mg of peptide antibiotic i.e colistin. Potency is >15000 U/mg and solubility is in water (50 mg/ml according to manufacturer's instructions). As potency is given in units, so...

01 January 2018 8,824 7 View

Does colistin powder appears as light yellow crystals under some conditions?

I have colistin sulphate salt but it appears to be light yellow crystals. Ideally it should be off-white powder, so, can't figure out why is it not in powdered form. Is it possible that it has...

11 November 2017 832 2 View

Which free version of chemdraw is compatible with windows 8?

11 November 2015 4,165 5 View

How can I optimize media conditions for asparaginase production via placket burman design?

I want to optimize four carbon and nitrogen sources along with pH, Temp, incubation time and size of inoculum. I am using design expert version 9. Is there any option through which all of these...

09 September 2014 8,015 3 View

Can anyone lend any advice on the application of In silico studies in drug design?

Kindly guide me about the steps involved in docking of a bio active compound to its target. We have done the structure elucidation of the compound and want to check its interaction with the...

09 September 2014 1,437 5 View

Why does extraction with ethyl acetate result in some turbid mixture?

I am doing extraction of secondary metabolites with etoac from endophytic fungus Trichoderma, but after the first wash, when I add more etoac, it becomes turbid and watery. When I try to evaporate...

06 June 2014 7,511 4 View

What is the initial amount of crude extract required which we can take up to compound isolation?

I am working on endophytic fungi.

06 June 2014 2,826 5 View