CN103798358A - Temperature-change-based method for drying sweet potato - Google Patents
Temperature-change-based method for drying sweet potato Download PDFInfo
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- CN103798358A CN103798358A CN201310569384.4A CN201310569384A CN103798358A CN 103798358 A CN103798358 A CN 103798358A CN 201310569384 A CN201310569384 A CN 201310569384A CN 103798358 A CN103798358 A CN 103798358A
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Abstract
The invention discloses a temperature-change-based method for drying a sweet potato. The method comprises the following steps: increasing the temperature of a preheating drying chamber to 35 DEG C, and placing a drying disc (6) on the drying partition (10) of a drying chamber (7), wherein the spacing of the drying partition (10) is 40 centimeters; starting a ventilating fan (12) and ventilating through a ventilation hole (11); keeping the heating rate being 1-3 DEG C/1 hour; drying at the constant temperature of 45 DEG C for 7 hours, starting a moisture-removing hole or a moisture-removing fan; heating, drying at the constant temperature of 55 DEG C for 7-9 hours, and closing the moisture-removing hole (8) and the moisture-removing fan (9) after 4-5 hours; and heating, and drying at the constant temperature of 65 DEG C for 3 hours.
Description
Technical field
The present invention relates to crops storage field, the particularly a kind of method of oven dry pachyrhizus based on alternating temperature.
Background technology
Cancer-resisting substance, abundance of food fiber that pachyrhizus contains the growth of a large amount of sugar, protein, various vitamin and mineral matter, carrotene and vitamin C and inhibition cancer cell, so can Constipation, intestinal cancer; Can reduce the picked-up of heat simultaneously.Pachyrhizus, taste is sweet warm in nature, the defaecation of energy laxation, stomach invigorating benefit gas.Contain more cellulose, can in intestines, absorb the volume of moisture content increase ight soil, cause the effect of defaecation.Brown rice brown rice contains the mineral matters such as rich in protein, starch, vitamin B1, A, E, cellulose, calcium, iron and phosphorus, and wherein abundant cellulosic helps defecation.Mix chicken feed, can improve the cholesterol of eliminating in chicken body, improve the quality of egg or meat.After ground green tea produced in Anhui Province are sent into drying chamber, should toast continuously, until dry, heating can not be interrupted, and temperature can not be fluctuated, and easily quality declines.
Summary of the invention
In order to improve the quality of drying pachyrhizus, the invention provides a kind of method of oven dry pachyrhizus based on alternating temperature.
Technical scheme: pre-heating drying room temperature is raised to 35 ℃, the oven dry of drip pan (6) being put into hothouse (7) cuts off (10) above, and the spacing of drying partition (10) is 40 centimetres; Opening draught fan (12) ventilates by air vent (11); Heating rate remains on 1 hour and heats 1～3 ℃; 45 ℃ of constant temperature toast 7 hours, open moisture discharging opening or ventilating fan; Heat up, 55 ℃ of constant temperature toast 7～9 hours, and moisture discharging opening (8) and humidity discharging fan were closed after (9) 4～5 hours; Heat up, 65 ℃ of constant temperature toast 3 hours.
Beneficial effect: the pachyrhizus water content that this method is dried is no more than 3%; Pachyrhizus keeps original nutriment and natural colour.
Accompanying drawing explanation
Fig. 1 is the structural representation of drying plant of the present invention.
The specific embodiment
below in conjunction with accompanying drawing, the present invention is elaborated.
Pre-heating drying room temperature is raised to 35 ℃, and the oven dry of drip pan (6) being put into hothouse (7) cuts off (10) above, and the spacing of drying partition (10) is 40 centimetres; Opening draught fan (12) ventilates by air vent (11); Heating rate remains on 1 hour and heats 1～3 ℃; 45 ℃ of constant temperature toast 7 hours, open moisture discharging opening or ventilating fan; Heat up, 55 ℃ of constant temperature toast 7～9 hours, and moisture discharging opening (8) and humidity discharging fan were closed after (9) 4～5 hours; Heat up, 65 ℃ of constant temperature toast 3 hours.
Claims (1)
1. a method for the oven dry pachyrhizus based on alternating temperature, comprises the following steps: pre-heating drying room temperature is raised to 35 ℃, and the oven dry of drip pan (6) being put into hothouse (7) cuts off (10) above, and the spacing of drying partition (10) is 40 centimetres; Opening draught fan (12) ventilates by air vent (11); Heating rate remains on 1 hour and heats 1～3 ℃; 45 ℃ of constant temperature toast 7 hours, open moisture discharging opening or ventilating fan; Heat up, 55 ℃ of constant temperature toast 7～9 hours, and moisture discharging opening (8) and humidity discharging fan were closed after (9) 4～5 hours; Heat up, 65 ℃ of constant temperature toast 3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310569384.4A CN103798358A (en) | 2013-11-13 | 2013-11-13 | Temperature-change-based method for drying sweet potato |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310569384.4A CN103798358A (en) | 2013-11-13 | 2013-11-13 | Temperature-change-based method for drying sweet potato |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103798358A true CN103798358A (en) | 2014-05-21 |
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ID=50696133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310569384.4A Pending CN103798358A (en) | 2013-11-13 | 2013-11-13 | Temperature-change-based method for drying sweet potato |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103798358A (en) |
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2013
- 2013-11-13 CN CN201310569384.4A patent/CN103798358A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |
|
| WD01 | Invention patent application deemed withdrawn after publication |