Andrés Silva

6 Questions 16 Answers 0 Followers

Questions related from Andrés Silva

How does pressure affects pH?

Hello to everybody It's a pleasure to write you all Let me explain a doubt to you regarding to pectin extraction. The process involved the use of pressure (2 bar) and temperature. It is said...

06 June 2019 2,911 3 View

What does "hydrolysis carried out in a nitrogen atmosphere" mean?

Hello Dear researchers I read about aminoacid analysis in hydrolyzed protein by Liquid Chromatography. Previous derivatization is required and a subsequent hydrolysis too. It is mentioned in the...

06 June 2018 4,451 6 View

What is the importance of analysing physicochemical composition of in natura leaves instead dehydrated?

Hello everybody, There is a research paper about beetroot leaves (in natura and dehydrated) in which physicochemical composition was analyzed (file attached). In natura means as they have grown...

12 December 2017 1,057 3 View

How to express total phenolic content from mg/g (wet basis) to mg/g (dry basis)?

Hello everybody Through total phenolic assay I've obtained 47.6 mg/g plant sample as a final result, but this is presented in wet basis (w.b). It was recommended that moisture content (84.5%) must...

08 August 2017 7,224 13 View

Is it appropriate to use sodium carbonate monohydrate instead anhydrous?

Hello, It is for the extraction of phenolic compounds. Do you think there would be an inconvenient situation in practice development (standard curve and determination of phenolics)? Thank you.

04 April 2017 4,508 7 View

What is the recommended concentration for the elaboration of a standard curve of gallic acid?

I'm working with leaves for the determination of Total Phenolic Content and for quantifying this is necessary a standard curve of gallic acid. Could you give some options about concentration?

02 February 2017 768 5 View