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Questions tagged [alkaloids]

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Process of Arecoline Extraction

What would be the proper procedure to extract and isolate arecoline, an alkaloid ester, from the seed of the Areca nut, and is it possible to mass produce arecoline using that method?
Josh Wohwie's user avatar
0 votes
0 answers
469 views

Looking for advice regarding a larger scale soxhlet extraction

I have successfully completed a few soxhlet extractions at a much smaller scale using a soxhlet extractor with ~200ml capacity. With that, I was able to extract from ~100g of pre-powdered, sonicated ...
Joe Black's user avatar
7 votes
1 answer
630 views

What is the reaction between piperine and concentrated sulfuric acid?

Piperine was chemically characterized by reaction with acids. This was done by dropping concentrated $\ce{HNO3},$ $\ce{HCl},$ and $\ce{H2SO4}$ to a sample of piperine. Both $\ce{HNO3}$ and $\ce{HCl}$ ...
カイル's user avatar
2 votes
0 answers
1k views

Detecting alkaloids - Dragendorff's reagent

I am writing a book and as part of the plot one of the characters has a plant that contains alkaloids in tincture form. They want to do a test to detect for the alkaloids so they use the Dragendorff's ...
Cari's user avatar
  • 21
3 votes
2 answers
5k views

What is LSD-1, …, LSD-24, LSD-26, …?

LSD (lysergic acid diethylamide) was formerly often referred to as ‘LSD-25’. If it really is a (Albert Hofmann / Sandoz)'s code name (and not a combination of ‘LSD’ and usual LSD (Delysid) dosage ...
mykhal's user avatar
  • 6,262
1 vote
0 answers
54 views

Which analytical reagent can be used to detect Vinca alkaloids?

I am commencing a project on increasing the sensitivity of screening of some bioactive compounds produced as secondary metabolites from the plants! All of its chemical struture is known which is a ...
Shashank Jha's user avatar
4 votes
1 answer
1k views

General Alkaloid Extraction Process

I'm getting into alkaloid extraction from various ethnobotanicals. It is a bit frustrating trying to extract alkaloids from ethnobotanicals without good guides out there, and I wanted to make my own ...
Thor Correia's user avatar
6 votes
1 answer
1k views

Skipping the defatting stage in extraction of alkaloids

I am attempting to extract certain alkaloids from green plant matter, which is very high in waxes and fats. I understand that in this scenario it is common to first acidify and then use a non-polar ...
user3256725's user avatar
15 votes
3 answers
56k views

If caffeine is an alkaloid, why is coffee acidic?

I have just put together on my mind these two facts: caffeine is an alkaloid and brewed coffee is slightly acidic (pH = 5). My Biology teacher and my Chemistry teacher could not elaborate satisfying ...
Dela Corte's user avatar