| abstract |
The invention discloses a pectin production process for probiotic bacteria coating, and relates to the technical field of pectin production. The present invention includes the following steps: the first step: mixing fresh lemon peel and water in a container at a ratio of 1:5, cleaning the fresh lemon peel for 30 minutes, and repeating 3 times; the second step: mixing the cleaned lemon peel with water Put it into a stirring tank at a ratio of 1:6 and stir, the temperature is controlled at 75-84°C, and 65% concentrated nitric acid is added according to 2‰ of the amount of water added; the third step: keep the temperature at 80°C and stir for 2 hours, then add 23% ammonia water Adjust the pH to 3; the fourth step: use a plate and frame filter press to separate the extract, the separated extract is filtered through diatomaceous earth to remove remaining insoluble particles, and the experimental MVR evaporator is used for vacuum concentration to pectin content> 2.8%. By adopting the enzymatic method to reduce viscosity and compound granulation, the present invention enables the pectin produced by the process to have the characteristics of low viscosity, good solubility and good encapsulation performance of probiotics. |