- Jun 8, 2001
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What the heck is ethyl levulinate?
- Thread starter SarcasticDwarf
- Start date
- Jun 8, 2001
- 9,574
- 2
- 76
I am looking right at the book which says it. Google returns a bunch of hits but nothing that explains what it is exactly.
- Jun 8, 2001
- 9,574
- 2
- 76
That forum is for PC related questions. This is a question about chemistry. I don't think it fits.
Uppsala9496
Diamond Member
- Nov 2, 2001
- 5,272
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Uppsala9496
Diamond Member
- Nov 2, 2001
- 5,272
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Levulinic acid, a carboxylic acid containing ketone structure, is a clear to brownish semi-solid melting at 37 C; soluble in alcohol, ether and chloroform. Levulinic acid can be used as an acidulant in foods and beverages. It is used as an intermediate to manufacture synthetic fibers, pharmaceuticals, pesticides. plastics, rubber, and synthetic fibers. It is used in the manufacture perfumery, food additive, fuel additive, herbicide, solder flux, stabilizer and printing ink. Levulinic acid and its esters are used as platicizers and solvents in polymer, textiles and coatings. Levulinic acid ethyl ester is a flavoring material (odor description: ethereal, fruity, green, sweet)
BoomerD
No Lifer
- Feb 26, 2006
- 66,090
- 14,495
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http://bioeconomicdevelopment....ndex_files/Page425.htm
Also listed as a flavoring aqent, a poison, an ingredient in cigarettes, etc...
Also listed as a flavoring aqent, a poison, an ingredient in cigarettes, etc...
There's a lot more than just PC related stuff discussed in there. I know its under that heading but they talk about all manner of things.
195. ETHYL LEVULINATE - FDA approved food additive; FEMA
GRAS; found in bilberry wine, brandy grape, wheat bread,
cherimoya, cocoa, onion roasted, rum, wine; used in frozen dairy
goods, beverages, candy, baked goods.
It is also found in Jet Exhaust and cigarettes.
It also may be usable as a renewable replacement for Diesel Fuel as Levulinic Acid is produced from the acid hydrolysis of cellulose and is then easily converted to it's methyl or ethyl ester.*
*{Source}
GRAS; found in bilberry wine, brandy grape, wheat bread,
cherimoya, cocoa, onion roasted, rum, wine; used in frozen dairy
goods, beverages, candy, baked goods.
It is also found in Jet Exhaust and cigarettes.
It also may be usable as a renewable replacement for Diesel Fuel as Levulinic Acid is produced from the acid hydrolysis of cellulose and is then easily converted to it's methyl or ethyl ester.*
*{Source}
- Jun 8, 2001
- 9,574
- 2
- 76
Brilliant guys, thanks for the information. That clears things up.
This is what I get for reading a book on biorefining processes written by a bunch of chemists.
This is what I get for reading a book on biorefining processes written by a bunch of chemists.
MmmSkyscraper
Diamond Member
- Jul 6, 2004
- 9,472
- 1
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DrPizza
Administrator Elite Member Goat Whisperer
As simple as your question is, I don't understand what kind of answer you're looking for.
Are you wondering what it's used for? As far as what it is, it's an organic compound. More specifically, it's a carboxylic acid ester.
So, if you're wondering what an ester is, you can look that up. (an analogy is that at this point, you're figuring out what wood is; this is a specific type of wood, like oak.)
Here's a simple enough link on esters: wiki link, good enough
Now, more specifically, your ester: ethyl levulinate.
Also known by a bunch of other names. I personally like ethyl 3-acetyl propionate. Or, ethyl acetyl propanoate.
It's soluble in water and alcohol (among other things). It has an odor described by people with the terms "It smells kinda sweet to me" "It smells fruity to me" "It smells...": berry, floral, green, pineapple, rhubarb
Taste descriptions are: fruity, green, waxy, and melon
It's appearance ranges from colorless to a pale yellow clear liquid
It has roughly the same density as water.
It's one of the compounds used in a variety of products to help give the odor and/or flavor of: apples, grapes, green, melons (various types), olive, pear, pineapple, rhubarb, rum, smoky, and waxy.
Has a flash point a little below the boiling point of water, although its own boiling point is just above the boiling point of water. Its refractive index is also similar to that of water. Recommendations for its use are 6% for a fragrance concentrate or 40 parts per million for flavor.
It's naturally occurring in cocoa, garlic, onion, and wine.
What else do you want to know about it?
Are you wondering what it's used for? As far as what it is, it's an organic compound. More specifically, it's a carboxylic acid ester.
So, if you're wondering what an ester is, you can look that up. (an analogy is that at this point, you're figuring out what wood is; this is a specific type of wood, like oak.)
Here's a simple enough link on esters: wiki link, good enough
Now, more specifically, your ester: ethyl levulinate.
Also known by a bunch of other names. I personally like ethyl 3-acetyl propionate. Or, ethyl acetyl propanoate.
It's soluble in water and alcohol (among other things). It has an odor described by people with the terms "It smells kinda sweet to me" "It smells fruity to me" "It smells...": berry, floral, green, pineapple, rhubarb
Taste descriptions are: fruity, green, waxy, and melon
It's appearance ranges from colorless to a pale yellow clear liquid
It has roughly the same density as water.
It's one of the compounds used in a variety of products to help give the odor and/or flavor of: apples, grapes, green, melons (various types), olive, pear, pineapple, rhubarb, rum, smoky, and waxy.
Has a flash point a little below the boiling point of water, although its own boiling point is just above the boiling point of water. Its refractive index is also similar to that of water. Recommendations for its use are 6% for a fragrance concentrate or 40 parts per million for flavor.
It's naturally occurring in cocoa, garlic, onion, and wine.
What else do you want to know about it?
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