A method of extracting wool keratin
A wool keratin and wool technology, which is applied in the field of wool keratin extraction, can solve the problems of inability to extract keratin and insufficient extraction of wool keratin, and achieve the effects of shortening the dissolution time, increasing physical shear, and promoting dissolution
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Embodiment 1
[0029] A method for extracting wool keratin, comprising the following steps:
[0030] A) Weigh 8g of wool and add it to 180ml of ethanol, stir at 40°C for 2h, rinse with deionized water for 3 times and dry.
[0031] B) Add 5g of wool dried in step A) to CB 9.6 buffer at a bath ratio of 1:18, add 1g of sodium sulfite, react at 60°C for 25min, rinse with deionized water for 3 times and dry.
[0032] C) Get 1.8g of wool treated in step B) and immerse in 20ml of 1-ethyl-3-methylimidazolium diethyl phosphate salt ionic liquid, then add 20ml of dimethyl sulfoxide, and carry out ultrasonic treatment, and the ultrasonic power is 260W, ultrasonic time is 25min.
[0033] Among them, the preparation of 1-ethyl-3-methylimidazole diethyl phosphate salt ionic liquid: N-methylimidazole and triethyl phosphate were mixed in a 1:1.1 molar ratio and added to a round bottom flask, at 140 ° C The reaction was heated and stirred for 12 hours. The obtained product was washed several times with die...
Embodiment 2
[0039] A method for extracting wool keratin, comprising the following steps:
[0040] A) Weigh 10g of wool and add it to 190ml of ethanol, stir at 40°C for 2h, rinse with deionized water 4 times and dry.
[0041] B) Add 5g of wool dried in step A) to CB 9.6 buffer at a bath ratio of 1:19, add 1.2g of sodium sulfite, react at 60°C for 30min, rinse with deionized water 4 times and dry.
[0042] C) Take 2 g of wool treated in step B) and immerse it in 20 ml of 1-ethyl-3-methylimidazolium diethyl phosphate salt ionic liquid, then add 23 ml of dimethyl sulfoxide, and perform ultrasonic treatment, the ultrasonic power is 280W , Ultrasonic time is 27min.
[0043] Among them, the preparation of 1-ethyl-3-methylimidazole diethyl phosphate salt ionic liquid: N-methylimidazole and triethyl phosphate were mixed in a 1:1.1 molar ratio and added to a round bottom flask, at 140 ° C The reaction was heated and stirred for 12 hours. The obtained product was washed several times with diethyl ...
Embodiment 3
[0049] A method for extracting wool keratin, comprising the following steps:
[0050] A) Weigh 12g of wool and add it to 200ml of ethanol, stir at 40°C for 2h, rinse with deionized water for 5 times and dry.
[0051] B) Add 5g of wool dried in step A) to CB 9.6 buffer at a bath ratio of 1:20, add 1.4g of sodium sulfite, react at 60°C for 35min, rinse with deionized water 5 times and dry.
[0052] C) Get 2.2g of wool treated in step B) and immerse in 20ml 1-ethyl-3-methylimidazolium diethyl phosphate salt ionic liquid, then add 25ml of dimethyl sulfoxide, and carry out ultrasonic treatment, the ultrasonic power is 300W, ultrasonic time is 30min.
[0053] Among them, the preparation of 1-ethyl-3-methylimidazole diethyl phosphate salt ionic liquid: N-methylimidazole and triethyl phosphate were mixed in a 1:1.1 molar ratio and added to a round bottom flask, at 140 ° C The reaction was heated and stirred for 12 hours. The obtained product was washed several times with diethyl eth...
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