Cold chain coolant and preparation method thereof
A cold storage agent and cold chain technology, applied in the field of cold chain cold storage agent and its preparation, can solve the problems that the effect of cold chain needs to be further improved, the freezing effect of frozen food is limited, and cannot be absolute, and achieve high promotion and application value, cold storage Good effect and long storage time
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Embodiment 1
[0025] A cold chain cold storage agent, composed of the following components in mass percentage: 5% sodium chloride, 1% ammonium chloride, 1% ethylene glycol, 0.1% active silicon, 2% borax, 0.3% docusate sodium , 5% of amino-terminated polyethylene glycol amidated pectinic acid, 2% of the organic salt of lacaric acid group, and the rest is water; production.
[0026] The preparation method of the amino-terminated polyethylene glycol amidated pectic acid comprises the steps of: mixing 400 g of amino-terminated polyethylene glycol, 300 g of pectic acid, 2-ethoxyl-1-ethoxycarbonyl-1, 70 g of 2-dihydroquinoline was dissolved in 2000 g of dichloromethane, stirred and reacted in a dark room at 30° C. for 15 hours, and then the solvent was removed by rotary evaporation to obtain amino-terminated polyethylene glycol amidated pectinic acid.
[0027] The preparation method of the said lactoic acid-based organic salt comprises the following steps: mixing 220 g of lactoic acid and 100 g ...
Embodiment 2
[0031] A cold chain cold storage agent, which is composed of the following components in mass percentage: potassium chloride 6%, ammonium chloride 2%, glycerol 1.5%, active silicon 0.15%, borax 3%, docusate sodium 0.5% , 6% of amino-terminated polyethylene glycol amidated pectinic acid, 2.5% of lactoic acid-based organic salt, and the rest are water; production.
[0032] The preparation method of the amino-terminated polyethylene glycol amidated pectic acid comprises the steps of: mixing 400 g of amino-terminated polyethylene glycol, 300 g of pectic acid, 2-ethoxyl-1-ethoxycarbonyl-1, 85 g of 2-dihydroquinoline was dissolved in 2100 g of acetone, stirred and reacted in a dark room at 32° C. for 16 hours, and then the solvent was removed by rotary evaporation to obtain amino-terminated polyethylene glycol amidated pectinic acid.
[0033] The preparation method of the lacaric acid-based organic salt comprises the following steps: mixing 235 g of lacic acid and 100 g of choline,...
Embodiment 3
[0037] A cold chain cold storage agent, which is composed of the following components in mass percentage: calcium chloride 7.5%, ammonium chloride 2.5%, mannitol 2%, active silicon 0.2%, borax 3.5%, docusate sodium 0.6%, 7.5% amino-terminated polyethylene glycol amidated pectin, 3% organic salt of lacaric acid, and the rest is water; the organic salt of lacaric acid is prepared by ion exchange reaction between lacaric acid and choline. become.
[0038]The preparation method of the amino-terminated polyethylene glycol amidated pectic acid comprises the steps of: mixing 400 g of amino-terminated polyethylene glycol, 300 g of pectic acid, 2-ethoxyl-1-ethoxycarbonyl-1, 100 g of 2-dihydroquinoline was dissolved in 2300 g of tetrahydrofuran, stirred and reacted in a dark room at 35° C. for 18 hours, and then the solvent was removed by rotary evaporation to obtain amino-terminated polyethylene glycol amidated pectinic acid.
[0039] The preparation method of the lacaric acid-based o...
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