Preparation method of red pitaya icewine
A technology of red pitaya and ice wine, which is applied in the field of preparation of red pitaya ice wine, can solve the problems that pitaya is not suitable for external sales, the fruit of pitaya cannot be stored, and the preservation time is short, so as to achieve fullness and coordination of wine body, and improve taste and senses Quality, high-quality results
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[0053] Example 1
[0054] A preparation method of red pitaya ice wine includes the following steps:
[0055] 1) Select ripe and fresh red pitaya, with high hardness, green scales, no variegation or white spots on the skin, and the raw materials are peeled and cut manually;
[0056] 2) Perform a gradient cooling at a rate of 1°C per hour, keep it at -8°C and keep it for 12 hours, squeeze the juice, and prepare the red dragon fruit juice.
[0057] 3). Add PVPP to the red pitaya juice, the addition amount is 800mg / L; -9℃~-4℃ freeze preservation for 2 days, filter and add 70g / t of partial bisulfite;
[0058] 4) Add white granulated sugar to adjust the sugar content of red dragon fruit juice to 285g / L; add tartaric acid to adjust the acid content to 8g / L;
[0059] Add Saccharomyces cerevisiae and pectinase, ferment for 30 days at 18°C to 20°C, the added amount of Saccharomyces cerevisiae is 270g / L, and the added amount of pectinase is 30mg / L; after the fermentation is completed, cool and fr...
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[0062] Example 2
[0063] A preparation method of red pitaya ice wine includes the following steps:
[0064] 1) Select ripe and fresh red pitaya, with high hardness, green scales, no variegation or white spots on the skin, and the raw materials are peeled and cut manually;
[0065] 2) Perform a gradient cooling at a rate of 3°C per hour, keep it at 4°C and keep it for 16 hours, squeeze the juice, and prepare the red dragon fruit juice.
[0066] 3). Bentonite is added to the red pitaya juice in an amount of 1200mg / L; after freezing and storing at -9°C to -4°C for 4 days, it is filtered and 110g / t of potassium bisulfite is added;
[0067] 4) Add white granulated sugar to adjust the sugar content of red dragon fruit juice to 300g / L; add tartaric acid to adjust the acid content to 9g / L;
[0068] Add Saccharomyces cerevisiae and pectinase, ferment for 40 days at 18°C-20°C, the added amount of Saccharomyces cerevisiae is 230g / L, and the added amount of pectinase is 35mg / L; after the fermentati...
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[0071] Example 3
[0072] A preparation method of red pitaya ice wine includes the following steps:
[0073] 1) Select ripe and fresh red pitaya, with high hardness, green scales, no variegation or white spots on the skin, and the raw materials are peeled and cut manually;
[0074] 2) Perform a gradient cooling at a rate of 2°C per hour, keep the temperature at -6°C for 14 hours, and squeeze the juice to obtain the red dragon fruit juice.
[0075] 3). Bentonite is added to the red dragon fruit juice in an amount of 1000 mg / L; after freezing and storing at -9°C to -4°C for 3 days, it is filtered and 85 g / t of potassium bisulfite is added;
[0076] 4) Add white sugar to adjust the sugar content of red dragon fruit juice to 290g / L; add tartaric acid to adjust the acid content to 8g / L;
[0077] Add Saccharomyces cerevisiae and pectinase, ferment for 35 days at 18°C-20°C, the added amount of Saccharomyces cerevisiae is 250g / L, and the added amount of pectinase is 32mg / L; after the fermentatio...
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