Preparation method and application of moon persimmon extract freeze-dried powder
The technology of extract and freeze-dried powder is applied to the preparation and application field of freeze-dried powder of persimmon extract, can solve the problems of side effects and application limitations of synthetic antioxidants, and achieves good water solubility, good whitening effect, and anti-oxidation. good effect
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specific Embodiment approach 1
[0019] Specific implementation mode one: the present implementation mode is the preparation method of moon persimmon extract freeze-dried powder, specifically completes according to the following steps:
[0020] 1. Preparation of persimmon juice:
[0021] Pick the persimmons from the stagnant fruit period to the coloring period, remove the stalks of the picked persimmons, and obtain the stalked persimmons; use high-pressure spray to clean and remove dust from the stalked persimmons, and sterilize them with ozone bubbles; mechanical crushing Finally, pressing to obtain the persimmon juice;
[0022] 2. Enzyme hydrolysis:
[0023] Heating the persimmon juice to 30°C-50°C by using a water bath heating method, adding compound enzymes to the heated persimmon juice to obtain a persimmon juice / compound enzyme mixture; enzymolysis at a temperature of 30°C-50°C 0.3h~3h, get the persimmon juice after enzymolysis;
[0024] The compound enzyme described in step 2 is formed by mixing pec...
specific Embodiment approach 2
[0034] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: in step 2, the water bath heating method is used to heat the persimmon juice to 38 ° C ~ 42 ° C, and the compound enzyme is added to the heated persimmon juice to obtain the persimmon juice. Persimmon juice / compound enzyme mixture; enzymatically hydrolyzing for 0.5h-1h at a temperature of 38°C-42°C to obtain enzymatically hydrolyzed persimmon juice. Other steps are the same as in the first embodiment.
specific Embodiment approach 3
[0035] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the pectinase activity in the compound enzyme in step 2 is 3500μ / g~4500μ / g, and the β-amylase activity is 5500μ / g~ 7000μ / g, protease activity is 200μ / g~400μ / g, xylanase activity is 750000μ / g~85000μ / g, cellulase activity is 500μ / g~700μ / g and β-glucanase activity is 60000μ / g~140000μ / g; the mass of compound enzyme added is 0.1%~4.5% of the mass of persimmon juice. Other steps are the same as those in Embodiment 1 or 2.
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