Method for extracting pectin from lemon peels
A lemon peel and pectin technology, applied in the field of pectin extraction, can solve the problems of low extraction rate, long extraction process, and many impurities, and achieve the effect of less impurities
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[0011] A method for extracting pectin from lemon peel, comprising the steps of:
[0012] (1) Wash and crush the lemon peel to a particle size of 2-3 mm, then soak in boiling vinegar for 5-8 minutes, and rinse with water for several times;
[0013] (2) Add 3 times the amount of water, 3% of the amount of activated carbon, and 5% of the amount of attapulgite to the fresh lemon peel, refine it, heat it to 80-95°C, add vinegar to adjust the pH to 1.5 , keep warm for 60 minutes, filter, to the slurry and filter residue;
[0014] (3) Add salt equivalent to 4% of its weight and 1% Na2SO3 to the filter residue, mix well, inoculate lactic acid bacteria and yeast, ferment for 3 days, add water to make a slurry, heat to 50-55°C, add citric acid to adjust The pH value is 2, and the slurry is obtained by filtering to remove the slag;
[0015] (4) Combine the slurry and filtrate, add 95% edible alcohol to precipitate the pectin, then wash repeatedly, and then dry to obtain the finished pe...
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