Bentonite-based mango preservative and preparation method of the bentonite-based mango preservative
A technology of bentonite and preservative, applied in the field of fruit preservative and its preparation, can solve problems such as unreported research, small specific surface area of mineral particles, etc., and achieve the effects of simple preparation process, preventing the accumulation of sugar, and delaying the process of after-ripening
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Embodiment 1
[0016] Preparation of fresh-keeping solution: add 5 g of purified bentonite to 300 mL of distilled water, and stir at a high speed of 1000 r / min for 1 hour to fully disperse the bentonite to form a suspension; stir the above suspension at a low speed of 600 r / min, and stir under Add 0.5 g of citric acid; stir the above solution at a high speed of 1000 r / min for 1 hour to prepare a bentonite-based mango preservation solution.
[0017] Preservation by coating film: select fresh-picked red ivory mangoes with uniform size, no mechanical damage, no pests and diseases, and basically the same maturity and color. Store at room temperature.
[0018] Experimental results: using the fresh-keeping agent of the present invention to coat mangoes for fresh-keeping, the red ivory mangoes can be delayed for more than 7 days to rot and ripen at room temperature.
Embodiment 2
[0020] Prepare fresh-keeping solution: Add 10 g of purified bentonite to 300 mL of distilled water, stir at 1500 r / min for 1 hour to fully disperse the bentonite to form a suspension; stir the above suspension at 800 r / min at low speed, add 0.7 g of lemon under stirring Acid; Stir the above solution at a high speed of 1500r / min for 1 hour to make a bentonite-based mango preservation solution.
[0021] Coating fresh-keeping: choose the fresh-picked Guiqi mangoes with uniform size, no mechanical damage, no pests and diseases, and the maturity and color are basically the same. Rinse the fruit surface with tap water first, and after drying, use the antistaling agent of the present invention to coat the film. Air dry and store at room temperature.
[0022] Experimental results: Using this preservative to preserve freshness of mangoes by coating film can delay the rot and ripeness of Guiqi mangoes for more than 3 days at room temperature.
Embodiment 3
[0024] Prepare fresh-keeping solution: add 20 g of purified bentonite to 150 mL of distilled water, stir at 1500 r / min for 3 hours to fully disperse the bentonite to form a suspension; stir the above suspension at a low speed of 600 r / min, add 1.0 g citric acid; stir the above solution at a high speed of 1500r / min for 3 hours to make a bentonite-based mango preservation solution.
[0025] Preservation by coating film: Select fresh-picked mangoes with uniform size, no mechanical damage, no pests and diseases, and basically the same maturity and color. Rinse the fruit surface with tap water first, and after drying, apply the film with the above-mentioned preservatives and let it dry naturally. Store at room temperature.
[0026] Experimental results: Using this preservative to preserve freshness of mangoes by coating film can delay the rot and ripeness of Jinsui mangoes for more than 3 days at room temperature.
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