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Questions tagged [alkaloids]

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2
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0answers
28 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 ...
1
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0answers
53 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 ...
1
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0answers
36 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 ...
4
votes
1answer
500 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 ...
4
votes
1answer
459 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 ...
13
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3answers
41k 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 ...