Preparation method of black soybean hull dietary fiber
A technology of dietary fiber and black soybean skin, applied in the field of food processing, to reduce production waste output, improve raw material utilization, and increase nutritional value
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Embodiment 1
[0024] A kind of preparation method of dietary fiber of black soybean hulls, the steps are:
[0025] (1) Selection: remove the black beans and impurities mixed in the black bean skin;
[0026] (2) Crushing: crush the selected black soybean skin, and collect the black soybean skin powder that has passed through a 40-mesh sieve;
[0027] (3) Soaking: Mix black soybean hull powder with 5.76% molar HCl-ethanol solution according to the ratio of 1:10 to soak for 80 hours;
[0028] (4) Adjust PH value: adjust the soaked solution to neutral with NaOH solution;
[0029] (5) Filtration: filter the neutral solution, and wash the filter residue twice with 95% ethanol with a solid-to-liquid ratio of 1:10;
[0030] (6) Drying: Dry the washed filter residue in an oven at 60°C to obtain the obtained product. According to GB / T5009.88-2008, the soluble dietary fiber content of the modified black soybean hulls is determined, and the modification is encouraged The yield of black soybean skin ...
Embodiment 2
[0032] A kind of preparation method of dietary fiber of black soybean hulls, the steps are:
[0033] (1) Selection: remove the black beans and impurities mixed in the black bean skin;
[0034] (2) Crushing: crush the selected black soybean skin, and collect the black soybean skin powder that has passed through a 40-mesh sieve;
[0035] (3) Soaking: Mix black soybean hull powder with 11.52% molar HCl-ethanol solution according to the ratio of 1:10 to soak for 72 hours;
[0036] (4) Adjust PH value: adjust the soaked solution to neutral with NaOH solution;
[0037] (5) Filtration: filter the neutral solution, and wash the filter residue twice with 95% ethanol with a solid-to-liquid ratio of 1:10;
[0038] (6) Drying: Dry the washed filter residue in an oven at 60°C to obtain the obtained product. According to GB / T5009.88-2008, the soluble dietary fiber content of the modified black soybean hulls is determined, and the modification is encouraged The yield of black soybean skin...
Embodiment 3
[0040] A kind of preparation method of dietary fiber of black soybean hulls, the steps are:
[0041] (1) Selection: remove the black beans and impurities mixed in the black bean skin;
[0042] (2) Crushing: crush the selected black soybean skin, and collect the black soybean skin powder that has passed through a 40-mesh sieve;
[0043] (3) Soaking: Mix black soybean hull powder with 23.04% molar HCl-ethanol solution according to the ratio of 1:10 to soak for 65 hours;
[0044] (4) Adjust PH value: adjust the soaked solution to neutral with NaOH solution;
[0045] (5) Filtration: filter the neutral solution, and wash the filter residue twice with 95% ethanol with a solid-to-liquid ratio of 1:10;
[0046] (6) Drying: Dry the washed filter residue in an oven at 60°C to obtain the obtained product. According to GB / T5009.88-2008, the soluble dietary fiber content of the modified black soybean hulls is determined, and the modification is encouraged The yield of black soybean skin...
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