Portable fresh-keeping card with deltamethrin adsorption and antibacterial properties and preparation method of portable fresh-keeping card
A technology of deltamethrin and fresh-keeping cards, which is applied in the field of materials, can solve problems such as explosive reactions and food damage, and achieve the effect of increasing specific surface area, harmless to the environment, and inhibiting the growth of Escherichia coli and Staphylococcus aureus
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Embodiment 1
[0033] A method for preparing a portable fresh-keeping card with deltamethrin adsorption and antibacterial properties, the specific operations are as follows:
[0034] (1) Dry the bean dregs at 100°C and pass through a 80-mesh sieve, soak the bean dregs in ether for 8 hours (V 乙醚 :V 豆渣 =6:1) After degreasing treatment, wash with water to remove the organic solvent, dry at 80°C, and measure in m 豆渣 :m 水 =25:1 Prepare a solution, adjust the pH of the solution to 6, add 4% papain and 1% glucoamylase to the dried defatted bean dregs by mass, and perform synergistic enzymatic hydrolysis for 40 minutes to obtain the bean dregs dietary fiber;
[0035] (2) Prepare a preservative solution with a concentration of 0.5 mg / mL, and its components and contents are calculated in parts by weight: 75 parts of bean dregs dietary fiber, 10 parts of calcium propionate, and 15 parts of sodium ascorbate; the selected thickness is 0.5mm The activated carbon fiber paper is soaked in the activated c...
Embodiment 2
[0044] A method for preparing a portable fresh-keeping card with deltamethrin adsorption and antibacterial properties, the specific operations are as follows:
[0045] (1) Dry the bean dregs at 100°C and pass through a 80-mesh sieve, soak the bean dregs in ether for 8 hours (V 乙醚 :V 豆渣 =6:1) After degreasing treatment, wash with water to remove the organic solvent, dry at 80°C, and measure in m 豆渣 :m 水 =25:1 Prepare a solution, adjust the pH of the solution to 6, add 4% papain and 1% glucoamylase to the dried defatted bean dregs by mass, and perform synergistic enzymatic hydrolysis for 40 minutes to obtain the bean dregs dietary fiber;
[0046] (2) Prepare a preservative solution with a concentration of 1.0 mg / mL, and its components and contents are calculated in parts by weight: 80 parts of bean dregs dietary fiber, 10 parts of calcium propionate, 10 parts of sodium ascorbate, and the selected thickness is 1.0mm. Activated carbon fiber paper, the activated carbon fiber pap...
Embodiment 3
[0055] A method for preparing a portable fresh-keeping card with deltamethrin adsorption and antibacterial properties, the specific operations are as follows:
[0056] (1) Dry the bean dregs at 100°C and pass through a 80-mesh sieve, soak the bean dregs in ether for 8 hours (V 乙醚 :V 豆渣 =6:1) After degreasing treatment, wash with water to remove the organic solvent, dry at 80°C, and measure in m 豆渣 :m 水 =25:1 Prepare a solution, adjust the pH of the solution to 6, add 4% papain and 1% glucoamylase to the dried defatted bean dregs by mass, and perform synergistic enzymatic hydrolysis for 40 minutes to obtain the bean dregs dietary fiber;
[0057] (2) Prepare a preservative solution with a concentration of 1.5 mg / mL, and its components and contents are calculated in parts by weight: 85 parts of bean dregs dietary fiber, 8 parts of calcium propionate, 7 parts of sodium ascorbate, and the selected thickness is 1.5mm. Activated carbon fiber paper, the activated carbon fiber paper...
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