Preparation method of rose scent type essential oil and product prepared thereby
A technology of rose fragrance and essential oil, applied in the field of bioengineering, can solve the problems of high cost, poor effect, low yield of rose fragrance essential oil, etc., and achieve the effect of low cost, stable quality and energy production
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[0032] The preparation method of the rose-flavored essential oil provided by the present invention adopts a yeast fermentation method, extracts the yeast metabolites with an organic solvent and then volatilizes the organic solvent to obtain the rose-flavored essential oil; the organic solvent is preferably n-hexane or petroleum ether. Specifically, the method includes the following steps:
[0033] (1) inserting the yeast into the culture medium to carry out hierarchical expansion culture to obtain the yeast seed liquid;
[0034] The yeast seed liquid is obtained as follows:
[0035] (1-1) Insert the lyophilized and preserved yeast into the sterilized primary seed medium, the composition of the primary seed medium is (g / L): glucose 10, peptone 4, and K 2 HPO 4 0.5, the inoculum size is 5%, and cultivated for 20 to 40 hours to obtain the first-grade seed liquid;
[0036] (1-2) The primary seed liquid obtained in step (1-1) is inserted into the secondary seed medium, and the ...
Embodiment 1
[0049] A preparation method of rose-flavored essential oil, specifically comprising the following steps:
[0050] (1) Insert the yeast into the culture medium for hierarchical expansion culture to obtain the yeast seed liquid:
[0051] (1-1) Insert the lyophilized and preserved yeast liquid into the sterilized primary seed medium, the composition of the primary seed medium is (g / L): glucose 10, peptone 4, and K 2 HPO 4 0.5, the inoculum size is 5%, and cultivated for 20 to 40 hours to obtain the first-grade seed liquid;
[0052] The yeast is classified as EremotheciumashbyiiH4565, and was deposited in China Center for Type Culture Collection CCTCC on October 30, 2015, with the number CCTCCNO.M2015655.
[0053] (1-2) The primary seed liquid obtained in step (1-1) is inserted into the secondary seed medium, and the secondary seed medium consists of (g / L): glucose 15, peptone 6, and K 2 HPO 4 0.5, the inoculum size is 5%, cultivated for 20 to 30 hours to obtain yeast seed liq...
Embodiment 2
[0069] A preparation method of rose-flavored essential oil, specifically comprising the following steps:
[0070] (1) Insert the yeast into the culture medium for hierarchical expansion culture to obtain the yeast seed liquid:
[0071] (1-1) Insert the lyophilized and preserved yeast into the sterilized primary seed medium, the composition of the primary seed medium is (g / L): glucose 10, peptone 4, and K 2 HPO 4 0.5, the inoculum size is 5%, and cultivated for 20 to 40 hours to obtain the first-grade seed liquid;
[0072] The yeast is classified as EremotheciumashbyiiH4565, and was deposited in China Center for Type Culture Collection CCTCC on October 30, 2015, with the number CCTCCNO.M2015655.
[0073] (1-2) The primary seed liquid obtained in step (1-1) is inserted into the secondary seed medium, and the secondary seed medium consists of (g / L): glucose 15, peptone 6, and K 2 HPO 4 0.5, the inoculum size is 5%, and cultivated for 20 to 30 hours to obtain the secondary see...
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