Chemical compounds that occur naturally in plants | Contact experts in Phytochemistry to get answers
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Questions related to Phytochemistry
Methods of extraction and preparation, methods to study its flavonoid content, activity and its toxicity. Also, its effect in treatment of cancer?
22 April 2017 9,124 5 View
I'm working of endophytes. I'm doing my extraction procedure with a little bit confusion. is that necessary that we have to do the primary extraction with ethyl acetate. In most articles they...
21 April 2017 6,338 4 View
I'm currently working with plants but I have a bigger interest in Astrobiology. I'm looking for someone who works in both areas or that is interested in this. I thought about a project to study...
19 April 2017 8,867 3 View
how elicitation of callus using chitosan on solid media
18 April 2017 9,770 2 View
Dear experts, I am new to natural products. so I would like to know whether the lead compound is always an alkaloid or it could be a flavonoids, terpenoids etc. Thank you well in advance !!!
28 March 2017 5,310 4 View
alkaloid fraction has to be isolated and characterized by a suitable analytical method.i would like to study the same by HPLC...What should be the standard compound used?
26 March 2017 3,892 3 View
Can anyone suggest me how to use drug tablet for quantification of plant secondary metabolite by spectroscopic method.
24 March 2017 3,900 2 View
Once a phytochemical screening of a specific plant extracts were done before, do I need to to perform the phytochemical screening of that plant extract before doing any activities.
22 March 2017 7,060 8 View
Curcumins, curcuminoids water soluble... it is possible???
21 March 2017 3,906 9 View
i found this one: 2 ml plant extract was added to 2 ml ofchloroform. Carefully added 2 ml of sulphuric acid and shakengently. A reddish brown colouration was indicated the presenceof a steroidal...
20 March 2017 1,587 5 View
I'm investigating the antidiabetic activity of a certain medicinal plant. In this plant, no studies have done fractionation and isolation of bioactive compounds. But, its related species contains...
15 March 2017 9,068 3 View
i want to quantify saponin in Aloe vera genotypes using HPLC. Which steroidal saponin to be used as marker compound?? please suggest.
09 March 2017 2,447 3 View
i have tried cold maceration-rotary evaporator at 60oC and still had a very poor result on its antimicrobial activity.
08 March 2017 5,381 3 View
Dear colleagues, good night! I'm in trouble with how I will present my results from the antioxidant activity from an Hibiscus extract.In fact, I used the Brand-Williams protocol for DPPH...
06 March 2017 7,642 4 View
I am extracting papaya leaf & mangosteen rind using 80% MeOH. After vacuum evaporation, I could not get dry residue but thick waxy concentrate instead. I need to get residue to estimate total...
23 February 2017 9,709 3 View
You have been able to prepare alcoholic extract from each plant, followed by evaporating the alcohol leaving a solid residue. You then kept each extract in a separate dark glass bottle. You forgot...
23 February 2017 4,893 3 View
I need to extract Phospholipids from TLC plates by scraping out the requisite spot from the plates. Could anyone suggest an appropriate solvent to re-suspend the extracted phospholipids to use for...
20 February 2017 4,315 3 View
Does anyone suggest a simple procedure for the isolation of liquiritin (and its isomers)?
14 February 2017 4,806 3 View
i have a bacterial crude extract soluble only in water .........what solvent system i should use to run TLC or column
11 February 2017 878 4 View
I have added Aluminium chloride (AlCl3) ethanolique to the crude extract of the dates fruit in order to measure the absorption by spectrophotometre .Instead of the emergence of the yellow color...
10 February 2017 5,619 3 View
I need to carry out the GC-MS analysis of essential oil of about 50 leaf samples. Please suggest me a center or institution in India for doing the same with minimum charges.
08 February 2017 2,796 13 View
Need a way to quantify lupinine and saponin from a cell culture
08 February 2017 2,630 4 View
I am looking for compounds containing quinone in their structures such as thymoquinone, Griseofulvin etc. please exclude tetracycline, naphthaquinone "juglone, lawsone etc, or anthraquinone...
02 February 2017 3,832 3 View
Does anyone one have protocol for total polyphenol and total flavonoid estimation by 96 well plate method. gallic acid and quercetin is used as standard.
01 February 2017 3,379 4 View