A lychee and longan fresh-keeping agent with nano-chitosan as main ingredient and method for preparing same
A technology of nano-chitosan and antistaling agent, which is applied in the field of preparation of the fruit antistaling agent, can solve problems such as no detailed reports, and achieve the effect of low production cost
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Embodiment 1
[0022] Recipe: 1 kg of nano-chitosan, 500 kg of water
[0023] Potassium sorbate 1 kg
[0024] Preparation:
[0025] (1) First get the nano-chitosan and stir it evenly to a paste with an equal amount of water to obtain the paste-like nano-chitosan for subsequent use;
[0026] (2) Add 100 times the amount of water to the above-mentioned pasty nano-chitosan and stir evenly until the nano-chitosan is fully and evenly dispersed in water to obtain a nano-chitosan colloidal solution for subsequent use;
[0027] (3) adding sodium hydroxide solution to the nano-chitosan colloidal solution to make the pH value 6.8-7.0, to obtain the nano-chitosan neutralizing colloidal solution for subsequent use;
[0028] (4) Get potassium sorbate in addition and stir together with equal amount of water to paste, then add 30 times of water and stir evenly until potassium sorbate is fully dispersed in water to obtain potassium sorbate solution for subsequent use;
[0029] (5) Mix the above-men...
Embodiment 2
[0034] Recipe: 1 kg of nano-chitosan, 5500 kg of water
[0035] Potassium sorbate 50kg
[0036] The preparation method is the same as in Example 1.
Embodiment 3
[0038] Recipe: 1 kg of nano-chitosan, 1500 kg of water
[0039] Potassium sorbate 15kg
[0040] The preparation method is the same as in Implementation 1.
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