Method for prolonging storage period of brown rice
A storage period and brown rice technology, which is applied in the fields of edible seed preservation, chemical preservation of seeds, food preservation, etc., can solve the problems of high burst rate, short storage period of brown rice, easy oxidative deterioration, etc., and achieve a small burst rate. , Maintain the appearance and cooking characteristics, and ensure the effect of the slowing time
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Embodiment 1
[0017] Put the brown rice on the conveyor belt at a conveying speed of 1 kg / s, alternately treat it with air and superheated steam, and store it at room temperature (25±3°C, 65±3% RH). Alternate processing is as follows:
[0018] (1) Preheat the brown rice with air, the air temperature is 50°C, the humidity is 30%, the flow velocity is 2 m / s, and the action time is 10 seconds; (2) The brown rice is processed with hot air, the air temperature is 100 ℃, humidity is 30%, flow velocity is 2 m / s, and action time is 10 seconds; (3) Air is used to cool brown rice, air temperature is 65°C, humidity is 40%, flow velocity is 2 m / s, action time 10 seconds; (4) Treat brown rice with hot steam, the superheated steam temperature is 150°C, the flow rate is 2 m / s, and the action time is 10 seconds; (5) Treat brown rice grains with air, the air temperature is 60 ℃, the humidity is 40%, the flow velocity is 2 m / s, and the action time is 20 seconds.
Embodiment 2
[0020] Put the brown rice on the conveyor belt at a conveying speed of 1.5 kg / s, alternately treat it with air and superheated steam, and store it at room temperature (25±3°C, 65±3% RH). Alternate processing is as follows:
[0021] (1) Preheat the brown rice with air, the air temperature is 60°C, the humidity is 40%, the flow velocity is 3 m / s, and the action time is 20 seconds; (2) The brown rice is treated with hot air, the air temperature is 110 ℃, humidity is 40%, flow velocity is 3 m / s, action time is 20 seconds; (3) air is used to cool brown rice, air temperature is 55 °C, humidity is 50%, flow velocity is 3 m / s, action time (4) Treat brown rice with hot steam, the temperature of superheated steam is 200°C, the flow rate is 3 m / s, and the action time is 20 seconds; (5) Treat brown rice grains with air, the air temperature is 50 ℃, the humidity is 50%, the flow velocity is 4 m / s, and the action time is 30 seconds.
Embodiment 3
[0023] Put the brown rice on the conveyor belt at a conveying speed of 2 kg / s, alternately treat it with air and superheated steam, and store it at room temperature (25±3°C, 65±3% RH). Alternate processing is as follows:
[0024] (1) Preheat the brown rice with air, the air temperature is 70°C, the humidity is 50%, the flow velocity is 5 m / s, and the action time is 30 seconds; (2) The brown rice is treated with hot air, the air temperature is 120 ℃, the humidity is 50%, the flow velocity is 5 m / s, and the action time is 30 seconds; (3) the brown rice is cooled by air, the air temperature is 45 °C, the humidity is 60%, the flow velocity is 5 m / s, and the action time is (4) Treat the brown rice with hot steam, the superheated steam temperature is 250°C, the flow velocity is 5 m / s, and the action time is 30 seconds; (5) Treat the brown rice grains with air, the air temperature is 40 ℃, the humidity is 60%, the flow velocity is 5 m / s, and the action time is 40 seconds.
[0025] ...
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