Preparation method of passion fruit shell extracts
A technology of passion fruit shell and passion fruit, which is applied in the field of preparation of passion fruit shell extract, which can solve the problems of less active ingredients, single extraction components, and large amount of reagents, so as to achieve less solvent consumption, increase extraction rate, and simple steps Effect
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Embodiment 1
[0028] A preparation method of passion fruit shell extract, comprising the following steps:
[0029] (1) Peel off fresh passion fruit shells, remove rotten and deteriorated parts, and clean them;
[0030] (2) Dry the passion fruit shell in an oven at 55°C for 24 hours until the moisture content is <5%;
[0031] (3) Pass through a 20-mesh sieve after being pulverized by a pulverizer to obtain passion fruit shell powder;
[0032] (4) Weigh a certain amount of passion fruit shell powder in the above step 3), add 1mol / L potassium hydroxide solution with a solid-to-liquid ratio of 1:5 into the rotary cooker, heat up to 80°C and keep it warm for 0.5h, then Stop heating and cool to room temperature;
[0033] (5) Pour out the mixture in the cooking pot in the above step 4) and filter it, add 95% ethanol solution with a liquid-to-liquid ratio of 1:3 to the filtrate, put it in a water bath at 40°C for 20 minutes, take it out and centrifuge it at 3000r / min for 15 minutes , to collect ...
Embodiment 2
[0039] A preparation method of passion fruit shell extract, comprising the following steps:
[0040] (1) Peel off fresh passion fruit shells, remove rotten and deteriorated parts, and clean them;
[0041] (2) Dry the passion fruit shells in an oven at 65°C for 18 hours until the water content is <5%;
[0042] (3) Pass through a 40-mesh sieve after being pulverized by a pulverizer to obtain passion fruit shell powder;
[0043] (4) Weigh a certain amount of passion fruit shell powder in the above step 3), add 1mol / L potassium hydroxide solution with a solid-to-liquid ratio of 1:10 into the rotary cooker, heat up to 80°C and keep it warm for 1.5h, then Stop heating and cool to room temperature;
[0044] (5) Pour out the mixture in the cooking pot of the above step 4) and filter it, add 95% ethanol solution with a liquid-to-liquid ratio of 1:5 to the filtrate, put it in a water bath at 60°C for 20 minutes, take it out and centrifuge it at 5000r / min for 5 minutes , to collect th...
Embodiment 3
[0050] A preparation method of passion fruit shell extract, comprising the following steps:
[0051] (1) Peel off fresh passion fruit shells, remove rotten and deteriorated parts, and clean them;
[0052] (2) Dry the passion fruit shells in an oven at 60°C for 20 hours until the moisture content is <5%;
[0053] (3) Pass through a 30-mesh sieve after being pulverized by a pulverizer to obtain passion fruit shell powder;
[0054] (4) Weigh a certain amount of passion fruit shell powder in the above step 3), add 1mol / L potassium hydroxide solution with a solid-to-liquid ratio of 1:8 into the rotary cooker, heat up to 70°C and keep it warm for 1.0h, then Stop heating and cool to room temperature;
[0055] (5) Pour out the mixture in the cooking pot in the above step 4) and filter it, then add 95% ethanol solution with a liquid-to-liquid ratio of 1:4 to the filtrate, put it in a water bath at 50°C for 30 minutes, take it out and centrifuge it at 4000r / min for 10 minutes , to co...
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