Qianwei Li

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Questions related from Qianwei Li

What to do if lignin still cannot fully dissolve in pyridine/CDCl3/DMF solvent?

I try to run P NMR for a lignin extracted from biomass. 30 mg of lignin can be fully dissolve if I add 200 μl DMF and 50 μl pyridine mixture. But some solid will be precipitated out if I further...

04 June 2021 7,698 2 View

Is there any way to revive strains after a year stored in 4 degree refrigerator?

The strain is Candida tropicalis. It has been stored in 4 degree refrigerator for a year. Now we want to see if it is possible to revive the strain and make it function again. I tried to culture...

11 November 2020 5,747 9 View