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Commonly known as vanilla powder, vanillin, vanilla powder, vanilla extract, vanillin. It can be found in the seeds of vanilla, white to slightly yellow crystalline or crystalline powder, slightly sweet.
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Commonly known as vanilla powder, vanillin, vanilla powder, vanilla extract, vanillin. It can be found in the seeds of vanilla, white to slightly yellow crystalline or crystalline powder, slightly sweet. What is vanillin? https://eu.echemi.com/ https://eu.echemi.com/ Commonly known as vanilla powder, vanillin, vanilla powder, vanilla extract, vanillin. It can be found in the seeds of vanilla, white to slightly yellow crystalline or crystalline powder, slightly sweet. Soluble in hot water, glycerin and alcohol, not easily soluble in cold water and vegetable oil. The aroma is stable and not volatile at higher temperatures. It is easy to oxidize in the air, and it will change color when it is alkaline. It is widely used in various flavored foods that need to increase the flavor of milk, such as cakes, cold drinks, chocolate, candy; can also be used in soaps, toothpaste, perfume, rubber, plastics, pharmaceuticals. Preparation method of vanillin 1. Add 24.8g (0.1mo1) of guaiacol, 90mL of industrial ethanol, 30g of sodium hydroxide and an appropriate amount of triethylamine to a four-necked flask equipped with mixing, flowing back to the condenser, a dropping funnel and a thermometer After flowing back and mixing, 10 mL of chloroform was added dropwise up and down at 80°C for about 1 h. 2. The end of the dropwise addition reflects 1.5 to 2.5 hours under the slightly boiling standard, and the dropwise addition of 1 mol/L hydrochloric acid until the reaction is neutral. The sodium oxide was removed by filtration, and the residue was washed thoroughly with ethanol. Subsequently, triethylamine, chloroform and 2-methyl-3-methoxyanisole in the leachate were distilled off until no oil beads appeared. 3. The remaining filtrate is purified with 30 mL × magnesium sulfate, and distilled to remove ether in a water bath. Dissolve the obtained milky white solid in 15-25 parts of 40-60°C boiling water. The upper layer is the para product and the lower layer is the impurities. After liquid separation, the aqueous solution is concentrated to obtain vanillin. 3 medical ether, dried with anhydrous Uses of vanillin 1. In the pharmaceutical industry, it is used to produce the antihypertensive drug methyldopa, the catechol drug dopa, and its intraperitoneal and diazepam. 2. It is a good spice to obtain powdery fragrance and bean fragrance. Often used as foundation fragrance. It can be widely used in almost all fragrance types, such as violet, grass orchid, sunflower and oriental fragrance. It can be used in combination with jasmon aldehyde, isoeugenol benzyl ether, coumarin, musk, etc. as a fixed fragrance, a modifier and a mixture, and can also be used to mask bad breath.
3. GB27602011 stipulates the allowable edible spices. Widely used in the preparation of vanilla, chocolate, cream and other flavors, the dosage can reach 25%-30%, or directly used in biscuits, cakes, dosage 0.1%-0.4%, cold drinks 0.01%-0.3%, candy 0.2%-0.8% , Especially dairy products. China’s “National Food Safety Standards for the Use of Food Additives” GB2760-2011 states that “any edible flavors shall not be added to infant formula foods for use ranging from 0 to 6 months”. 4. Used in analytical chemistry to test protein azaindene, phloroglucinol and tannic acid.
