Steam distillation
Isoamyl acetate or 3-methyl-1-butyl ethanoate is often called essence of pear or banana. It is naturally occurring in both of these fruits as well as some others. It has a highly characteristic smell and is used as a fragrance in soaps and other household products. It is sometimes used to cover up undesirable odors from a product. It has been known to be used as a gas mask test chemical due to its high odor even in low concentrations and low toxicity. It is also a pheromone that bees release when in peril that attracts other bees to the area and provokes them to attack.
The smell of bananas comes from the ester 3-methylbutyl acetate. Ethyl acetate has a smell similar to that of bananas and is often used in banana fragrances as well as being naturally found in some wines. The ester 3-methylbutyl acetate (isopentyl acetate) is an artificial banana scent/flavor. While we perceive the smell of this compound as the smell of bananas, the chemical is not responsible for the scent/flavor of real bananas. Banana candies (runts for example) use 3-methylbutyl acetate as the artificial flavoring and any true banana lover could tell you that the candies taste different than the fruit.
lead acetate
There is one acetate ion in sodium acetate, which has the chemical formula CH3COONa.
The chemical formula for rubidium acetate is RbC2H3O2.
Isoamyl acetate and n-butyl acetate are two of the more common esters which give a banana flavor
Banana oil is used as flavouring additive for foods; now is an industrial product (isoamyl acetate).
The flavour of a banana comes largely from Isoamyl Acetate, but the banana itself does not have a chemical formula.
Banana oil, also known as isoamyl acetate, is a synthetic compound typically produced by reacting acetic acid with isoamyl alcohol. It is commonly used as a flavoring agent in foods and beverages due to its sweet, fruity aroma reminiscent of bananas, despite not being directly derived from them.
Sulfuric acid is used in the preparation of banana oil because it acts as a catalyst to promote the esterification reaction between isoamyl alcohol and acetic acid to produce isoamyl acetate, which is the compound responsible for the banana-like scent. The sulfuric acid helps increase the rate of the reaction and improve the yield of the desired product.
I would perform distillation on isoamyl acetate for its purification because it has a significantly different boiling point compared to impurities, making it easier to separate. Recrystallization might not be as effective since isoamyl acetate is a liquid at room temperature and may not form crystals.
CH3COO(CH2)2CH(CH3)2
banana oil n. 1. A liquid mixture of amyl acetate and usually nitrocellulose, having a banana-like odor and used as a solvent or flavoring agent. Source: http://www.answers.com/banana+oil?gwp=11&ver=2.3.0.609&method=3
Isoamyl acetate or 3-methyl-1-butyl ethanoate is often called essence of pear or banana. It is naturally occurring in both of these fruits as well as some others. It has a highly characteristic smell and is used as a fragrance in soaps and other household products. It is sometimes used to cover up undesirable odors from a product. It has been known to be used as a gas mask test chemical due to its high odor even in low concentrations and low toxicity. It is also a pheromone that bees release when in peril that attracts other bees to the area and provokes them to attack.
Before refluxing, reagents such as isoamyl alcohol and acetic acid are mixed in a reaction flask. During reflux, the reaction mixture is heated under reflux conditions to allow the esterification reaction to occur. After reflux, the reaction mixture is cooled and the ester product, isoamyl acetate, is isolated using techniques such as extraction or distillation.
To make banana extract at home, mash ripe bananas and mix with alcohol like vodka. Let it sit for a few weeks, then strain out the solids. The liquid left behind is your homemade banana extract.
The common cause of banana off flavor in beer is the presence of a compound called isoamyl acetate, which is produced by yeast during fermentation. This off flavor can be prevented during the brewing process by controlling fermentation temperature, using the appropriate yeast strain, and ensuring proper yeast health and pitching rates.