Method for extracting multifunctional dietary fibers from wheat bran
A technology of dietary fiber and wheat bran, which is applied in the direction of food science, etc., can solve problems such as poor taste, influence on mineral utilization, and limited application range, and achieve the effects of avoiding oxidation of a small amount of oil, simplifying operation, and avoiding high temperature conditions
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Embodiment 1
[0037] Preliminary screening to remove impurities: take 200g of raw material bran for preliminary screening to remove some impurities;
[0038] Washing: Take 1200g water to stir and wash the bran for 20 minutes, then filter with double-layer gauze to get the filter residue, add 1200g water to stir and wash for 20 minutes, and filter; wash four times in total, and the water temperature is controlled at 5-40°C; the first batch of materials After three times of washing liquid is filtered and centrifuged, it is used as water for the first washing of another batch of materials;
[0039] Acid treatment: wash the bran with water, add 10 times deionized water, adjust the pH value of the control system to 4 with dilute hydrochloric acid at 55°C, stir and wash for 30 minutes, stop adding acid, keep warm and continue to stir and wash for 30 minutes;
[0040] Filtration, neutralization, washing, drying;
[0041] Pulverization: pulverize the acid-treated bran and pass through a 250-mesh s...
Embodiment 2
[0044] Preliminary screening to remove impurities: take 200g of raw material bran for preliminary screening to remove some impurities;
[0045] Washing: Take 1400g water to stir and wash the bran for 15 minutes, then filter with double-layer gauze. Take the filter residue, add 1200g water to stir and wash for 15 minutes, and filter; wash five times in total, and the water temperature is controlled at 5-40°C;
[0046] Acid treatment: wash the bran with water, add 11 times deionized water, adjust the pH value of the control system to 4.5 with dilute sulfuric acid at 50°C, stir and wash for 35 minutes, stop adding acid, keep warm and continue to stir and wash for 30 minutes;
[0047] Filtration, neutralization, washing, drying;
[0048] Pulverization: pulverize the acid-treated bran and pass through a 120-mesh sieve plate.
[0049] The product yield is about 43%.
Embodiment 3
[0051] Preliminary screening to remove impurities: take 200g of raw material bran for preliminary screening to remove some impurities;
[0052] Washing: Take 1300g water to stir and wash the bran for 25 minutes, then filter with double-layer gauze. Take the filter residue, add 1300g water to stir and wash for 25 minutes, and filter; wash three times in total, and the water temperature is controlled at 5-40°C; After the third washing liquid is filtered and centrifuged, it is used as water for the first washing of another batch of materials;
[0053] Acid treatment: Wash the bran with water, add 12 times deionized water, adjust the pH value of the control system to 5 with dilute acetic acid at 45°C, stir and wash for 40 minutes, stop adding acid, keep warm and continue to stir and wash for 35 minutes;
[0054] Filtration, neutralization, washing, drying;
[0055] Pulverization: pulverize the acid-treated bran and pass through a 120-mesh sieve plate.
[0056] The product yield ...
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