Shing Ching Khoo

5 Questions 7 Answers 0 Followers

Questions related from Shing Ching Khoo

SIMCA OPLS-DA plot get high positive R2 value, but Q2 is negative, how to fix the problem?

Currently, I'm working on the analysis of mass NMR spectrum of my samples in SIMPCA for PCA and OPLS-DA test. However, I'm getting negative of Q2, even increase and decrease the number of...

01 July 2021 1,534 0 View

How to identify RAMAN spectrum especially for plant ?

How can I obtained plant RAMAN spectrum database for free ? or is there any useful reference can be used for the analysis of plant RAMAN spectrum ?

21 October 2019 9,371 1 View

How much or concentration antibacterial and antifungal agent need to added in plant cell culture media?

I bought penicilin G potassium, stremtpmycin sulphate powder, and benomyl for antibacterial and antifungal purpose. However, most of the formulation media were added with ready mixture solution...

12 August 2018 4,940 2 View

Bacillus subtilis spore count method?

hi, all. I'm facing a problem in counting the spore of bacillus subtilis. I had used heamocytometer to count the spore, but the size of spore are just too small , i had used 1000x dilution factor...

07 November 2016 6,675 18 View

How can I coat probiotics bacteria into food pellet for oral vaccination of shrimp?

How to determine the ratio of bacteria spore and food pellet as a feed for shrimp? Example, 2x106 spores per 1g of food stated in First Litopenaeus vannamei WSSV 100% oral vaccinationprotection...

09 August 2016 4,719 5 View