A method for increasing the content of soluble dietary fiber in apple pomace
A technology for dietary fiber content and apple pomace, which is applied in the fields of food science, food ingredients, and food mechanical processing, can solve the problems of small increase in soluble dietary fiber content, pollution of the environment by disposal of waste liquid, and expensive supporting equipment. Social significance and economic value, improvement of resource utilization efficiency, effect of simple equipment
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Embodiment 1
[0028] The first step, take 300 g of apple pomace raw materials, remove impurities, and use 5% K 2 CO 3 solution presoak, apple pomace and K 2 CO 3 The ratio of the solution is 1:4 (g: mL), the pre-soaking temperature is 20°C, and the pre-soaking time is 1 h. After the pre-soaking, filter to remove K 2 CO 3 solution, washed twice with water to obtain presoaked apple pomace.
[0029] In the second step, the pre-soaked apple pomace was dehydrated so that the water content of the apple pomace was 15%, put into the steam explosion cylinder, the pressure was 0.2MPa, the pressure holding time was 10 s, and the blast was instantaneous to obtain the blasted apple pomace.
[0030] In the third step, the apple pomace obtained by steam explosion is dried to a water content of less than 6%, crushed to a particle size of 20 mesh, and the content of soluble dietary fiber in the apple pomace is more than 35%.
Embodiment 2
[0032] The first step, take 300 g of apple pomace raw materials, remove impurities, and use K with a mass fraction of 15% 2 CO 3 solution presoak, apple pomace and K 2 CO 3 The ratio of the solution is 1:12 (g: mL), the pre-soaking temperature is 45°C, and the pre-soaking time is 8 h. After the pre-soaking, filter to remove K 2 CO 3 solution, washed twice with water to obtain presoaked apple pomace.
[0033] The second step is to dehydrate the pre-soaked apple pomace to make the water content of the apple pomace 100%, put it into the steam explosion cylinder, the pressure is 1.2 MPa, and the pressure holding time is 120 s, and it is blasted instantly to obtain the blasted apple pomace.
[0034] In the third step, the apple pomace obtained by steam explosion is dried to a water content of less than 6%, crushed to a particle size of 60 mesh, and the content of soluble dietary fiber in the apple pomace is more than 35%.
Embodiment 3
[0036] The first step, take 300 g of apple pomace raw materials, remove impurities, and use 20% K 2 CO 3 solution presoak, apple pomace and K 2 CO 3The ratio of the solution is 1:20 (g: mL), the pre-soaking temperature is 70°C, and the pre-soaking time is 15 h. After the pre-soaking, filter to remove K 2 CO 3 solution, washed twice with water to obtain presoaked apple pomace.
[0037] In the second step, the presoaked apple pomace was dehydrated so that the water content of the apple pomace was 200%, put it into the steam explosion cylinder, the pressure was 2.4 MPa, the pressure holding time was 180 s, and the blast was instantaneous to obtain the blasted apple pomace.
[0038] In the third step, the apple pomace obtained by steam explosion is dried to a water content of less than 6%, crushed to a particle size of 120 mesh, and the content of soluble dietary fiber in the apple pomace is more than 35%.
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