Dry water plant powder preparing method
A technology of aquatic plants and dry powder, which is applied in the field of resource utilization of aquatic plants, can solve the problems of low processing capacity, cumbersome process, and inconspicuous economic benefits, and achieve good economic and social benefits, stable product quality, and mild operating conditions.
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Embodiment 1
[0019] 1) Cut the collected fresh water hyacinth into small pieces, and blanch them in an aqueous solution with an ethoxyquin mass percentage concentration of 0.001% and a temperature of 100°C for 0.1 minutes;
[0020] 2) Add ethoxyquin and propionic acid to the sodium chloride solution with a concentration of 0.1% by mass, so that the mass percentage concentration of antioxidant is 0.001% and the mass percentage concentration of preservative is 3%. Put the water hyacinth after bleaching into it, cooling and osmotic dehydration for 10 hours; then homogenize with a high-pressure homogenizer for 10 minutes to make pulp;
[0021] 3) Filter the filter press obtained in step 2), dry the filter cake with a belt dryer to a water content of less than 15%, measure and package to obtain dry aquatic plant powder, and return the filtrate to step 2) for recycling.
Embodiment 2
[0023] 1) Cut the collected fresh Potamogeton crispus, blanch it in an aqueous solution with a concentration of 5% by mass of di-tert-butylhydroxytoluene and a temperature of 45°C for 10 minutes;
[0024] 2) Add di-tert-butyl hydroxytoluene and sorbic acid to a sodium acetate solution with a concentration of 20% by mass, so that the mass percentage of antioxidant is 5% and the mass percentage of preservative is 0.001%. Put the water hyacinth after blanching and blanching into it, cooling and osmotic dehydration for 10 hours; then homogenizing with a high-shear emulsifier for 2 minutes to make pulp;
[0025] 3) Filter the filter press obtained in step 2), and dry the filter cake with a tunnel dryer to a moisture content of less than 10%. After measuring and packaging, the dried pottery grass powder is obtained, and the filtrate is returned to step 2) for recycling.
Embodiment 3
[0027] 1) Chop the collected water lotus and blanch it in an aqueous solution with a concentration of 0.05% propyl gallate and a temperature of 60°C for 2 minutes;
[0028] 2) Add propyl gallate and benzoic acid to a calcium chloride aqueous solution with a concentration of 5% by mass, so that the mass percentage of antioxidant is 1% and the mass percentage of preservative is 2%. Throw the bleached water lotus into it, cool and osmotic dehydration for 3 hours; then homogenize it with a high-shear emulsifier for 2 minutes to make pulp;
[0029] 3) The filter cake obtained in step 2) is filtered or centrifuged, the filter cake is dried, metered, and packaged to obtain dry lotus powder, and the filtrate is returned to step 2) for recycling.
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