Jayesree Nagarajan

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Questions related from Jayesree Nagarajan

What causes colour changes of pectin during acid hydrolysis?

I did acid hydrolysis to breakdown pectin into monosaccharides for sugar analysis. The colour of pectin eventually changes into the colour of the fruit itself during the hydrolysis. Wondering what...

09 September 2016 7,568 1 View

Can we distinguish isomers in fluorescence spectrometer studies?

My sample contain mixtures of cis and trans isomers. Apart from HPLC method, can I quantify percentage of these isomers using fluorescence spectrometer? Very minimum references are available...

04 April 2016 5,537 3 View

Can anyone assist me to interpret the correlation between DPPH assay and FRAP assay?

I have extracted plant samples using four different solvents. I found that the DPPH scavenging activity of all tested samples are averagely similar but the FRAP reducing result of a particular...

11 November 2015 8,330 2 View

Can anyone share the knowledge on factorial screening and response surface methodology?

What is the difference between optimization using factorial screening and response surface methodology for plant extraction?

11 November 2015 3,986 6 View