Compound antistaling agent for prolonging loquat fruit storage life and preparing method thereof
A storage time, compound fresh-keeping technology, applied in fruit and vegetable fresh-keeping, food preservation, food science and other directions, can solve the problems of storage and transportation difficulties, fruit intolerance to storage and transportation, perishable deterioration, etc., to improve food quality and commodity Value, effect on inhibiting browning and rot, prolonging shelf life
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Embodiment 1
[0015] ① Take 9g of nano-calcium carbonate, add 1L of 70°C water, stir evenly and keep it warm, then add 1.5g of sodium stearate, and keep it in a water bath for 20 minutes for modification. ②Take 300g of chitosan, heat and dissolve it in 29L of water, and then mix it with the above solution in ① evenly. Choose loquats that are basically the same size and color, without damage, diseases and insect pests, soak them in the above-mentioned compound preservation solution for 3 to 5 minutes, remove and dry them, then put them in cartons with a height of 30 to 40 cm, and place them in 20 to 25 Store at ℃ for 6 days.
Embodiment 2
[0017] ① Take 15g of nano-calcium carbonate, add 1L of 90°C water, stir evenly and keep it warm, then add 4.5g of sodium stearate, and keep it in a water bath for 40min to modify. ②Take 450g of chitosan, heat and dissolve it in 29L of water, and then mix it with the above solution in ① evenly. Choose loquats that are basically the same size and color, without damage, diseases and insect pests, soak them in the above-mentioned compound preservation solution for 3 to 5 minutes, remove and dry them, then put them in cartons with a height of 30 to 40 cm, and place them in 20 to 25 Store at ℃ for 6 days.
Embodiment 3
[0019] ① Take 12g of nano-calcium carbonate, add 1L of 80°C water, stir evenly and keep it warm, then add 3.5g of sodium stearate, and keep it in a water bath for 30 minutes to modify. ②Take 350g of chitosan, heat and dissolve it in 29L of water, and then mix it with the above solution in ① evenly. Choose loquats that are basically the same size and color, without damage, diseases and insect pests, soak them in the above-mentioned compound preservation solution for 3 to 5 minutes, remove and dry them, then put them in cartons with a height of 30 to 40 cm, and place them in 20 to 25 Store at ℃ for 6 days.
[0020] The good fruit rate of loquat fruit is shown in the table below (with clear water soaking as the control).
[0021] deal with
2 days
4 days
6 days
Group A
81.7%
67.2%
41.3%
Group B
91.4%
87.1%
70.6%
Group C
97.2%
90.1%
73.8%
Group D
95.9%
92.2%
...
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