Method for inhibiting production of lysine by heat treatment of whey proteins
A technology of whey protein and whey protein powder, which is applied in the field of food processing to achieve the effects of easy promotion, simple operation and wide application range
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Embodiment 1
[0029] 1. Take 100g of concentrated whey protein powder (WPC80, the protein concentration reaches 80%), dissolve it in 889mL distilled water, make a solution with a protein concentration of 0.09g / ml (w / v), and then refrigerate overnight at 4°C. Fully hydrates albumin concentrate powder;
[0030] 2. Take it out the next day, divide it into two parts on average, add 0.4% sodium tripolyphosphate (STPP, w / w) to the first part, place it on a magnetic stirrer and stir at room temperature for 15 minutes until STPP is completely dissolved; Except that STPP is not added, all other processing methods are the same as the first one.
[0031] 3. After the mixed solution has completely returned to room temperature, adjust the pH of the two parts with 2mol / L sodium hydroxide solution to make the pH of both parts 8.0.
[0032] 4. Then heat the two protein solutions in a water bath at the same time, the heating temperature is 85 degrees Celsius, and the heating time is 20 minutes.
[0033] 5...
Embodiment 2
[0036] 1. Take 100g of concentrated whey protein powder (WPC80, the protein concentration reaches 80%), dissolve it in 640mL distilled water, make a solution with a protein concentration of 0.125g / ml (w / v), and refrigerate overnight at 4°C for 10h , to fully hydrate the concentrated albumin powder;
[0037] 2. Take it out the next day, divide it into two parts on average, add 0.8% sodium tripolyphosphate (STPP, w / w) to the first part, place it on a magnetic stirrer and stir at room temperature for 20 minutes until STPP is completely dissolved; Except that STPP is not added, all other processing methods are the same as the first one.
[0038] 3. After the mixed solution has completely returned to room temperature, adjust the pH of the two parts with 2mol / L sodium hydroxide solution to make the pH of both parts 8.0.
[0039] 4. Then heat the two protein solutions in a water bath at the same time, the heating temperature is 85 degrees Celsius, and the heating time is 15 minutes....
Embodiment 3
[0043] 1. Take 100g of concentrated whey protein powder (WPC80, the protein concentration reaches 80%), dissolve it in 525mL distilled water, make a solution with a protein concentration of 0.152g / ml (w / v), and refrigerate overnight at 4°C for 10h , to fully hydrate the concentrated albumin powder;
[0044] 2. Take it out the next day, divide it into two parts on average, add 1.2% sodium tripolyphosphate (STPP, w / w) to the first part, place it on a magnetic stirrer and stir at room temperature for 25 minutes until STPP is completely dissolved; the second part except Except that STPP is not added, all other processing methods are the same as the first one.
[0045] 3. After the mixed solution has completely returned to room temperature, adjust the pH of the two parts with 2mol / L sodium hydroxide solution to make the pH of both parts 8.0.
[0046] 4. Then heat the two protein solutions in a water bath at the same time, the heating temperature is 85 degrees Celsius, and the heat...
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