Chemical compounds that occur naturally in plants | Contact experts in Phytochemistry to get answers
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Questions related to Phytochemistry
Dear researchers How can alkaloids heliotropin and europin be found in a yield of Mentha?Are these compounds occurring at the specific specie or there was a mistake during sampling,probably with...
01 February 2017 9,173 3 View
I need standard method for qualitative and quantitative detection of vitamins with HPLC-MS.
31 January 2017 9,235 3 View
i want to do total flavonoid content,phenolic content,DPPH test,so now i want to do those test with ethanolic extract so can i prepare my test solution(10mg/ml) with methanol ? or i have to...
24 January 2017 3,839 5 View
I prepared the powder of methanolic extract than I want to desolved for testing this extract on the fungus . How to desolved it whith water or with in other solvent .???
24 January 2017 5,584 5 View
I want to know about structure of Ag-BTC coordination polymer. Can anyone give me some information about this type of coordination polymer? Structure, Cluster and .... Thank you
24 January 2017 5,816 2 View
I was trying to find the zone of inhibition for Lawsonia inermis, so I had to stack pieces of filter paper for different concentration (more no of filter papers stacked- higher concentration)....
22 January 2017 7,658 5 View
I am trying to identify the volatile emission spectrum from A. thaliana and L. sativa using SPME of their headspace (static) with GC-MS. I am using an Agilent HP-PONA column, and a GC program with...
19 January 2017 4,673 12 View
Actually, there is a range of articles about quantification of phenolics/antioxidant activity and methanol is widely used for this purpose because of its good polarity and performance to allow...
17 January 2017 7,457 2 View
I work on an ion chromatography system for the separation of anionic species in wine. Since I changed the Guard and Separation Colums, backpressure increased from 1500 to 1900 psi at my working...
12 December 2016 5,899 5 View
I follow Ruch et al 1989 method for h202 scavenging assay but instead of decrease in absorbance I am getting increase in absorbance. I am using phosphate buffer as blank, h202(40mM)+phosphate...
12 December 2016 8,555 4 View
08 December 2016 5,480 4 View
I was wondering if anyone had resources regarding kin recognition in snakes, preferably dealing with breeding preference. I have tried, and cannot find research on whether or not snakes can...
07 December 2016 5,506 2 View
I would like to test the binding affinity of certain anticancer compounds towards microtubules and/or their ability to affect tubulin polymerization. Many companies are providing the assay kits,...
02 December 2016 1,784 1 View
The meristematic cells of root tips of Allim cepa are growing in rapid way. Many researchers are using this model to screen anticancer activity. The inhibition of root number and lengh as well as...
23 November 2016 3,127 4 View
Hello, This week I measured the DPPH scavenging activity (%) and the antioxidant activity expressed in VCAE in 2 varieties (red and yellow) of onions. (Find protocol attached). Unfortunately the...
11 November 2016 5,274 3 View
Both 1H and C13 NMR values of my sample can be assigned to a known molecule except at one place. From reference values and theoretical point of view, a methine proton (CH) near to a methylene...
11 November 2016 2,950 5 View
I was estimating total sugar in rice leaf and stem at the vegetative stage. I got more sugar in leaf than the stem. Is this correct? If yes then why? Example- Leaf-10.32 mg/g FW and Stem-3.73...
11 November 2016 4,387 3 View
08 November 2016 8,189 5 View
I used bates method for proline estimation. I used 0.5 gm dried leaf sample (wheat) and homogenized in 10 ml of sulphosalicylic acid. From that stock solution 0.1 ml sample was taken and went...
17 October 2016 5,843 5 View
10 October 2016 3,951 5 View
I want a protocol to determine amylose and amylopectin composition in rice..
21 September 2016 5,542 5 View
Phytoalexins are only one component of the complex mechanisms for disease resistance in plants caused by fungi and bacteria (Kuc, 1995). Easy to find the antimicrobial mechanism of phytoalexins on...
09 September 2016 3,403 3 View
I came across the call for proposal for The Finland ministry of Foreign affairs known as HEI ICI Programme 2016–2018 with deadline of October 5th. The collaborator should a university from...
09 September 2016 5,530 4 View
I was using Bradfords reagent for protein quantification in microplate reader. The problem I faced was I got variations in house keeping gene. The pity is that some sample even did not...
09 September 2016 7,025 1 View