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Author: Subject: Some chemistry nerd porn - List of plant compounds
mycotheologist
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[*] posted on 26-6-2012 at 15:37
Some chemistry nerd porn - List of plant compounds


http://www.chemfaces.com/compound/alkaloids.php
I really have to get myself a soxlet extractor.
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White Yeti
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[*] posted on 10-7-2012 at 20:02


Good stuff. I'm actually working on a list of medicinal plants and their chemical constituents. I've made a list of about 800 species with medicinal properties so far, and I'm not finished yet. Making such a list was so much easier for the fungi kingdom. Plants are so diverse, it's amazing. It's a shame we're destroying their habitats at ever increasing rates.



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SulfurApothecary
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[*] posted on 10-7-2012 at 20:14


Nice, I will be actually testing some plant compounds on bacteria, I even got some pipets :D



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zoombafu
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[*] posted on 15-7-2012 at 21:01


Thanks for the share! I'm very interested in extracted compounds from plants/fungi as well.



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RonPaul2012
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[*] posted on 16-7-2012 at 12:24


I also am interested in extracting compounds from plants ; I will favorite the link.

I am really amazed by the variety of plants that I find in the woods near where I work , I better not get involved too much , lest I become a botanist :o

I really need to get a soxhlet extractor.

Thanks mycotheologist :D
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zoombafu
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[*] posted on 16-7-2012 at 12:33


A soxhlet extractor isn't always necessary. Ive extracted many essential oils from plants with a steam distillation setup. Its pretty easy to use.
http://en.wikipedia.org/wiki/Steam_distillation





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White Yeti
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[*] posted on 18-7-2012 at 08:09


I came across a video about extracting essential oils a while ago. It used a setup I've never seen before, but I thought it was really neat. This guy uses a separatory funnel with a sidearm to collect the distillate. Skip to 1:50 for the set-up.
http://www.youtube.com/watch?v=gDojS7PWWPY&feature=relat...

A soxhlet extractor is ideal only when the oil is not too volatile and not too fragile, since they will inevitably cycle back into the boiling flask. It's especially useful when you have a limited quantity of plant matter that is very rich in oils.

On a separate and related note, I went for a hike last week and found some Indian pipes. They grow everywhere and it's quite a sight to behold, so I took a few for myself. I didn't know quite how to deal with them, so I packaged and froze them. Does anyone know if drying these plants at room temperature reduces their essential oil content?
Here's a picture:
IMG_0682downsize.jpg - 253kB
According to this source:
http://www.ryandrum.com/threeherbs.htm#IndianPipe
Macerating these plants in a strong alcohol yields a tincture with soporific and healing properties. It's not a very authoritative source, but it could be an interesting subject to look further into.




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zoombafu
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[*] posted on 18-7-2012 at 11:55


Quote: Originally posted by White Yeti  
Does anyone know if drying these plants at room temperature reduces their essential oil content?


This is something I've wondered about before, but I have never found an answer. When I have time Ill do some experiments. I'll go find some local plants, pick a lot of them, then split the bunch in two. One Ill do an extraction of immediately, and the other I will let air dry and then do an extraction. Then I will compare the results to find out if the dried plants have a lesser oil content or not.




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RonPaul2012
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[*] posted on 18-7-2012 at 14:34


Quote: Originally posted by zoombafu  
A soxhlet extractor isn't always necessary. Ive extracted many essential oils from plants with a steam distillation setup. Its pretty easy to use.
http://en.wikipedia.org/wiki/Steam_distillation

I just wish I had more time.

I have an idea , I could go through the woods with several bags and collect samples of everything I come across and post pictures ; so we could identify the samples :)

What do you think ?

My friend pulled off a leaf to a plant (I don't remember the name) and told me to chew it , I did and it tasted a lot like lemons.

I may not know much but I am willing to learn :D

[Edited on 18-7-2012 by RonPaul2012]
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hyfalcon
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[*] posted on 18-7-2012 at 14:42


Sounds like oxalis of some sort that tasted like lemons. Did it look like a 3 leaf clover only lighter and smaller?
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RonPaul2012
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[*] posted on 18-7-2012 at 16:01


Quote: Originally posted by hyfalcon  
Sounds like oxalis of some sort that tasted like lemons. Did it look like a 3 leaf clover only lighter and smaller?
It was Sassafras IIRC
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zoombafu
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[*] posted on 18-7-2012 at 16:13


Sassafras is a tree, and it has a liquorish scent.



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