Frying oil treating agent and application thereof
A technology for frying oil and treatment agent, applied in the field of oil processing
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[0044] The invention provides a preparation method of a frying oil treatment agent.
[0045] Method provided by the invention comprises the following steps:
[0046] The okara is dried for the first time, pulverized, burned, pickled, washed with water, and dried for the second time.
[0047]In the present invention, the term "okara" generally refers to a by-product obtained by soaking soybeans in the process of making tofu / soymilk after soaking, refining, and separating the slurry, which can be obtained commercially or through the following Preparation method: Soak soybeans in water for several hours, pulverize and stir them in a soymilk machine, and filter to obtain bean dregs.
[0048] In one or more specific embodiments of the present invention, the dry basis protein content of the okara is 21%-33%, preferably 23-31%, more preferably 25-30%. In one or more specific embodiments of the present invention, the dry basis protein content of the okara is 21%, 22%, 23%, 24%, 25%,...
Embodiment 1
[0077] The wet okara sample I was dried at 80°C for 4 hours, then crushed and screened to obtain okara with a particle size of 40 mesh as a raw material, and put into a tube furnace for incineration. The firing procedure is as follows: first raise the temperature to 180°C at 10°C / min, and keep it for 0.5h; Min was raised to 600°C and kept for 3 hours; finally, after the sample was naturally cooled, it was soaked in 0.5mol / L nitric acid solution for 30 minutes, and then washed with deionized water until neutral; the filtered sample was dried at 80°C for 10 hours to obtain Frying oil treatment agent A.
[0078] Weigh 3kg of palm oil and heat it to 180°C for frying potato chips experiment. The frying time is 3 minutes per pot, then drain the oil for 3 minutes, and continue frying for 40 pots, leaving about 2.5kg of palm oil in the pot. Then, when the oil temperature dropped to and kept at 60° C., 12.5 g of frying oil treatment agent A (0.5 wt % based on oil weight) was added, st...
Embodiment 2
[0080] The wet okara sample II was dried at 100°C for 2 hours, then crushed and screened to obtain okara with a particle size of 120 mesh as raw material, and put into a tube furnace for incineration. The firing procedure is as follows: first raise the temperature to 140°C at 5°C / min and keep it for 1h; min to 800°C and keep it warm for 1h; finally, after the sample is naturally cooled, soak it in 2mol / L nitric acid solution for 15min, then wash it with deionized water until it is neutral; dry the filtered sample at 120°C for 2h to obtain decocted Frying oil treatment agent B.
[0081] Weigh 3kg of palm oil and heat it to 220°C to carry out the frying tempura experiment. The frying time is 3 minutes per pot, then drain the oil for 3 minutes, and continue frying for 20 pots, leaving about 2.8kg of palm oil in the pot. Then keep the oil temperature at 220° C., add 560 g of frying oil treatment agent B (20 wt % based on oil weight), stir for 5 min, filter and collect the filtrat...
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