How can I get the highest yield in plant extraction?

Hi, Could you please tell me what is the best solvent which gives the highest yield in extraction of secondary metabolites from plants? and what is the best way: decoction, maceration, soxhlet,...

05 June 2015 8,479 15 View

What is the adequate H2O2 concentration in superoxide radical scavenging test of plant extract?

Hi, I want to test the antioxidant power of my plant extracts using H2O2 as oxidant agent. Literature mentioned two different concentrations of H2O2: 40 mM and 4mM and I am really confused. So,...

04 May 2015 5,672 4 View

How can I dissolve plant extracts in an acidic or basic medium?

Hi, I want to test my plant extracts as a corrosion inhibitor in an acidic medium (HCl 1M). For that I prepared plant extracts in MeOH / water (80/20) and evaporated solvents but my extracts are...

04 May 2015 7,997 4 View

Why are my methanolic plant extracts not completely soluble in methanol?

Hi, I prepared plant extracts in MeOH /water (80/20) and evaporated both solvents. However, my extracts are not completely soluble either in water or in methanol, Could you please tell me why and...

04 May 2015 925 6 View

Why all publications are using glassy carbon/platinum wire electrodes in tests of cyclic voltammetry of plant extracts?

Hi, I want to perform antioxidant activity of plant extracts by cyclic voltammetry. I find that all publications used glassy carbon as working electrode and platinum wire as auxiliary electrode;...

04 May 2015 680 5 View

Can someone tell me why I have blurred (cloudy) solution when I add folin-ciocalteu reagent to my plant extract?

Folin-Ciocalteu reaction What to do to resolve this problem? Thank you.

08 September 2014 5,086 2 View

What is the most efficient protocol to extract alkaloids from plants?

See above

04 May 2014 1,644 8 View

What are the most reliable approaches to extract key continuous frames from a video, with complete automation?

I have an input video, of skin (from a microscope that means it is magnified such that blood capillaries are visible). The idea is to extract 15 sec of continuous frames from a video of 1 min,...

02 March 2021 2,735 2 View

Which is the best place in the world for the plant biotechnology research?

I am searching for a good place for the Post Doc,

02 March 2021 4,053 3 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View