Preservative for celery
A preservative, celery technology, applied in the directions of fruit and vegetable preservation, food preservation, food science, etc., can solve the problems of increasing the economic cost of celery preservation, increasing the incidence and decay rate, increasing labor burden, etc. The effect of high water regain, strong broad-spectrum antibacterial and antioxidant activity
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Embodiment 1
[0016] A celery antistaling agent is characterized in that it is made up of the following components in parts by weight:
[0017] 8 parts of silk fibroin fiber solution, 5 parts of propolis extract, 2 parts of citric acid, 1 part of sodium benzoate, and sugar 0.6 parts of fatty acid esters, 2 parts of lecithin, 2 parts of glycerin, 4 parts of 0.3% hydrogen peroxide, 0.5 parts of aluminum ammonium sulfate. The propolis extract is obtained by freezing and pulverizing the propolis raw material, controlling the tower pressure to 30 MPa with supercritical CO2, and extracting at 45°C for 4 hours.
Embodiment 2
[0019] A celery antistaling agent is characterized in that it is made up of the following components in parts by weight:
[0020] 9 parts of silk fibroin fiber solution, 6 parts of propolis extract, 2.5 parts of citric acid, 1.5 parts of sodium benzoate, sucrose 0.7 parts of fatty acid esters, 2.5 parts of lecithin, 3 parts of glycerin, 5 parts of 0.3% hydrogen peroxide, and 0.6 parts of ammonium aluminum sulfate. The propolis extract is obtained by freezing and pulverizing the propolis raw material, using supercritical CO2 to control the tower pressure to 30 MPa, and the temperature to be 45° C. to extract for 5 hours.
Embodiment 3
[0022] A celery antistaling agent is characterized in that it is made up of the following components in parts by weight:
[0023] 10 parts of silk fibroin fiber solution, 7 parts of propolis extract, 3 parts of citric acid, 2 parts of sodium benzoate, and sugar 0.8 parts of fatty acid esters, 3 parts of lecithin, 4 parts of glycerin, 6 parts of 0.3% hydrogen peroxide, and 0.7 parts of ammonium aluminum sulfate. The propolis extract is obtained by freezing and pulverizing the propolis raw material, using supercritical CO2 to control the tower pressure to 30 MPa, and the temperature to be 45° C. to extract for 5 hours.
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