Roasted coffee aroma substance and its preparation method and application
A coffee and substance technology, applied in the field of tobacco flavors and fragrances, can solve the problems of insufficient moisturizing properties of materials
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Embodiment 1
[0021] The preparation method of the roasted coffee aroma substance of the present embodiment is carried out as follows:
[0022] Add 15 parts of Vietnamese medium coffee, 2 parts of Greek large coffee, 5 parts of Brazilian coffee, 100 parts of ethylene glycol and 0.03 part of dextrin polysaccharide iron complex into a round bottom flask, stir, connect the mouth of the flask with a condenser tube, and then put Heated to 160°C in an oil bath, condensed and refluxed for 3h.
[0023] Add 200 parts of petroleum ether to the above reaction product, ultrasonically extract for 60 minutes, then shake and extract for 60 minutes, then carry out centrifugation for 15 minutes, take the upper layer liquid and filter it with an organic filter membrane, carry out vacuum distillation, remove the solvent, and obtain roasted coffee Aroma.
[0024] Dissolve 0.5 parts of the above-mentioned roasted coffee aroma substance in alcohol to form a solution with a mass percentage of 0.5%, add 0.5 parts...
Embodiment 2
[0032] The preparation method of the roasted coffee aroma substance of the present embodiment is carried out as follows:
[0033] Mix 30 parts of Hainan medium coffee and Vietnamese medium coffee, 1 part of Greek coffee and 2 parts of Taiwan coffee, 25 parts of Jamaican coffee and Yunnan coffee, 250 parts of ethylene glycol and propylene glycol, and iron dextran Put 1 portion of the compound into a round-bottomed flask, stir, connect the mouth of the flask with a condenser, put it into an oil bath, heat it to 250°C, and condense and reflux for 0.5h.
[0034] Add 2000 parts of n-hexane and chloroform to the above reaction product, wherein, n-hexane and chloroform are mixed at a volume ratio of 1:1, ultrasonically extracted for 10 minutes, then shaken and extracted for 10 minutes, centrifuged for 5 minutes, and the upper liquid is filtered with an organic filter membrane Afterwards, vacuum distillation is carried out to remove the solvent to obtain roasted coffee aroma substance...
Embodiment 3
[0043] The preparation method of the roasted coffee aroma substance of the present embodiment is carried out as follows:
[0044] Add 30 parts of Indian medium-sized coffee and Hainan medium-sized coffee, 2 parts of Chinese Taiwan large-grained coffee, 18 parts of Yunnan small-sized coffee, 200 parts of glycerin, and 0.1 part of iron dextran compound into a round bottom flask, stir, and connect the flask mouth The condenser tube was refluxed, then put into an oil bath and heated to 200°C, and reacted for 1 hour.
[0045] Add 1000 parts of ethyl acetate to the above reaction product, ultrasonically extract for 30 minutes, then shake and extract for 30 minutes, then centrifuge for 4 minutes, take the upper liquid and filter it with an organic filter membrane, then carry out vacuum distillation to remove the solvent, and obtain the desired product. coffee roasting aroma substances.
[0046] Dissolve 0.7 parts by weight of the roasted coffee aroma substance above in alcohol to form...
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