Joseph Junior

8 Questions 1 Answers 0 Followers

Questions related from Joseph Junior

What is the best analytical (accurary and precision) method for reduced glutathione from yeast extract?

I would like to know what is the best analytical method for measuring glutathione? I already saw some methods like colorimetric (spectrophotometer), HPLC, LC-MS, electrophoresis. Also, what is the...

29 January 2020 3,652 3 View

Have someone had a contamination in the anti-foam solution (Xiameter AFE-1520)?

We have used such product as anti-foam, but we got some Enterobacteriace contamination in that solution. Do you have some tips for preventing such problem?

29 May 2019 4,616 1 View

What's the best oxygen analyzer/sensor to measure on the ppm scale?

I want to check in the anaerobic chamber the amount of oxygen. What's the best device for that?

13 February 2017 6,326 3 View

Are there an estimating calculations of hexose (glucose) transporter on the cell surface (S. cerevisiae or other yeast)?

Are there website or scientific paper that have been discussed?

11 February 2016 2,155 1 View

What is the optimum temperature for growth of contaminants from ethanol industry (Lactobacillus fermentum)?

Ethanol fermentation of Saccharomyces cerevisiae usually occurs at 30-32°C. I would like to know if the temperature is increased (45°C), most contaminants will increase the growth rate?

12 June 2015 6,077 5 View

What are the main metabolic reactions that present molecular oxygen (O2) in yeast (especially in Kluyveromyces)?

Are there studies where sterol, pyrimidines, and heme biosynthesis is involved with oxygen? What are other reactions?

22 May 2014 3,674 1 View

Thermal stability of reduced glutathione

Dear all, I would like to know if there is a strategy we can prolong the thermal stability of reduced glutatione at 80 °C?

01 January 1970 5,957 3 View

Foam at the end of fermentation

Based on the literature, some foam is hard to break down once produced at the end of the fermentation process, even adding some defoamer. According to your expertise, what kind of procedure we can...

01 January 1970 6,828 7 View