CN1017211B - Baking process for peanuts - Google Patents

Abstract

The present invention relates to a processing method for preventing peanut testae from being peeled off by baking and processing peanuts, and a device thereof. Raw peanuts are soaked in a Pullulan (trademark) aqueous solution which is one of the polysaccharide class and baked after being scooped out of the Pullulan (trademark) aqueous solution and dried; mixed liquid prepared from the Pullulan aqueous solution and salak is sprayed on the raw peanuts for many times in the baking process; the purpose of preventing the peanut testae from being peeled off and oxidized is achieved by the processing. The baking device is characterized in that a cylindrical metal net 8 rotating by taking a horizontal shaft as the center is arranged in a furnace body, a far infrared heater is arranged at the periphery of the cylindrical metal net 8, and simultaneously, a cover which is convenient to open and close is arranged above the furnace body. The peanuts heated by far infrared slowly rotate in the cylindrical metal net 8 in the baking process.

Description

Baking process for peanuts

The present invention prevents peeling off and the processing method of oxidation of in process of circulation peanut endothelium about a kind of.

Not only volume is big in circulation, sale for covered peanut, and edible inconvenient, is difficult for tasty.Therefore, generally all shell, sell after hanging up saline taste.If but the peanut endothelium peels off, the contained unrighted acid of peanut will oxidation, therefore, normally is with endothelium to fry in shallow oil machined with roasting, for ease of circulation with sell, is respectively charged into by certain amount in the bag of plastic sheeting.

But the structure of machine is fried in shallow oil in roasting in the past, is difficult to assurance peanut endothelium and does not peel off with shelled peanut.Present widely used peanut roasting is fried in shallow oil machine and is called the flat machine of frying in shallow oil, about 1 square metre load onto peanut on the net, net is shaken, roasting in igniting off the net, all focus on one side for preventing peanut, several cones also are housed on the net.Like this, when shaking, strong collision takes place in peanut and cone, produces the peanut endothelium and peels off the phenomenon of splitting with shelled peanut.And because the collision of cone causes spot.

Therefore, fry in shallow oil machine with roasting in the past and bake peanut scaling easily in transportation of frying in shallow oil, amass, reduce the value of commodity in the food bag bottom.Moreover, the unrighted acid that peanut includes also can oxidation, especially in summer, and only will be spoiled about one month.

This phenomenon is a peanut trade, particularly the very big problem of Japan from Chinese import peanut.

The object of the present invention is to provide a kind of method of processing peanut, the peanut with harmless polysaccharide processing is shelled prevents that peanut red coat is peeled off and oxidation in the transportation, and is fresh-keeping, improves transportation and preservation effect, improves commodity value.This new equipment is fried in shallow oil in the process in roasting, and the peanut of collision belt scarlet does not heat in spray process continuously yet, makes not occur cooling off phenomenon in the whole process.

Method of the present invention is that the peanut of will give birth to immerses Propiram (transliteration, the trade mark of Lin Yuan company) in the solution, also can again peanut be immersed the mixed liquor of alphalysed starch and dextrin as required, soak again after having soaked in the mixed liquor that floods into salt and phytase, after suitable drying, roasting is fried in shallow oil.The mixed liquor of frying in shallow oil also available Propiram and salad gram in the process (transliteration, the abundant セ ラ of qi Star ヮ makes the trade mark of institute) in roasting carries out several and sprays.

Employed device is to be the center with trunnion axis in the body of heater, be provided with the cylinder wire netting of rotation, far-infrared heater is housed on every side, upper of furnace body is equipped with switch lid easily, have the blast pipe of suction hole along above-mentioned cylinder center on traditional thread binding, exhaust fan is housed at an end of this pipe.

Foregoing invention and original technology relatively have following positive effect.

As everyone knows, Propiram has the character that forms overlay film, and peanut is soaked the back drying in Propiram water liquid, and the overlay film of surperficial peanut not only can be anti-oxidation, and fresh-keeping look has also been strengthened scarlet, has suppressed peeling off of scarlet.

In addition, peel off for preventing scarlet, use starch as overlay film also can, the adhesion strength of alphalysed starch is better, the anti-effect of peeling off might as well.But the hygroscopicity of starch is bigger, and this just should not preserve.

If add dextrin, salad gram, not only strengthen the effect of adhesion, and also had oleophilic properties, the peanut that just in time is suitable for having oiliness, hygroscopicity is also little, can suppress the hygroscopicity of alphalysed starch.

Afterwards, peanut is immersed in salt and the phytase solution, not only can go up saline taste, also produce oxidation-protective effect.

Phytase has stronger chelation, can make the iron ion deactivation.The scarlet of peanut contains the composition of iron, can cause the oxidation of scarlet and shelled peanut, and in the preservation process, scarlet will blackening.After making it deactivation with phytase, can prevent the oxidation and the scarlet blackening of peanut.

The dipping of above-mentioned starch solution and phytase solution can carry out respectively in proper order, also these two kinds of solution can be mixed dipping one time.

After sticking slimy living peanut was put substantially and done behind the dipping, roasting was just fried in shallow oil and is easy to, and salinity and other composition also can fully soak into the scarlet and the kernel of peanut in drying simultaneously.

In addition, fry in shallow oil in roasting and to use the Propiram solution spray in the process, form overlay film, not only make color face beautiful, also can increase moisture resistance on the peanut red coat surface.But light Propiram solution, adhesive performance is poor, also need add an amount of dextrin, salad gram etc.

Therefore neoteric device has produced following remarkable result owing to adopted aforesaid structure.

(1) because peanut slowly rotates, be subjected to the baking of far infrared simultaneously, so the duration and degree of heating is even in coghill net.

(2) peanut does not have the collision of barriers such as protrusion and stirring vane at the volley, does not worry that scarlet peels off and the shelled peanut fragmentation.

(3) when spraying the polysaccharide aqueous solution, open loam cake, the cylinder selvage changes the limit and sprays, and with the heater heating, so not only sprays evenly, and does not worry that peanut bean cooling midway can cause that taste is not good simultaneously.

(4) moisture that produces in roasting is fried in shallow oil is discharged by central blast pipe, and the humidity that roasting is fried in shallow oil is very low, the peanut palatable crisp that bakes out.

(5) behind the sprinkling polysaccharide aqueous solution, the peanut weight of rotating in the net increases, and scarlet and kernel glue tightlyer, and phase mutual friction simultaneously improves the peanut grain surface gloss.

(6) heat of far-infrared radiation generation forms hot blast owing to the attraction of blast pipe at middle body, and Jia Re effect is even like this, and has improved the thermal efficiency.

Neoteric roasting is fried in shallow oil device as shown in drawings.

The 1st figure is the front view that device is fried in shallow oil in roasting, and the 2nd figure is a side view, and the 3rd figure is the front view of coghill net blast pipe.

Lift a following example, do one with regard to the concrete rules of this processing method and describe in detail.

With the Propiram below 3% (can fix tentatively 2%), the alphalysed starch of (as 0.5%) below 1% (with Ma Cinuo woods M(マ Star ノ ソ Application M) is as alphalysed starch, the Ma Cinuo woods is the goods marks name of Song Gu chemical company) and the dextrin (title of dextrin: send sound Di Kusi 100(パ ィ Application デ Star Network ス 100) of 3% following (as 2%) also be Song Gu chemical company trade name) mixing, be mixed with amidin, the peanut of the living band scarlet that shells is immersed about 40 seconds in this amidin, and then peanut immersed in the saturated aqueous common salt that dissolves with 36% salt, soaked for 40 seconds approximately, be added with 0.2% phytase in the saturated aqueous common salt.

Then peanut is pulled out, the container of putting into the ventilation of leaking of similar bamboo basket dries in the shade.Peanut needs 8 hours from the sticking sticky state of pulling out approximately to substantially dry (being still living).

Dried peanut is put into roasting to be fried in shallow oil device roasting and fries in shallow oil.After beginning is fried in shallow oil in roasting, after reaching 250 ℃ temperature, water with the aqueous solution spray that 8% Propiram and 2% salad gram mix, after several minutes again spray once, totally 2 times, overlay film forms the back and bakes to fry in shallow oil and finish.Seal up if roasting is fried in shallow oil the peanut that finishes and had in packing in the pocket of deoxidier, the effect of preservation can be better.

Below, employed roasting of the present invention is fried in shallow oil device and is done a detailed description with regard to above-mentioned processing method.

Body of heater 1 places on the frame 2, has switch convenient and have the lid 4 of hydrofuge chimney 3,1 peanut input port 5, outlet 6, the dynamic part 7 in the another side are arranged in the side.

In the body of heater central interior, 8 of cylinders that stainless (steel) wire is made are around trunnion axis, and it drives its rotation by drive methods such as power section 7 usefulness belts.At the core of cylinder, to wear net and fixing and manage 9, an end of pipe 9 is equipped with the centrifugal fan 10 that an exhaust is used, and has the steam vent 11 of right quantity on pipe, and according to the distance from fan, the steam vent pore size is also different, and aperture far away more is big more.In addition, around rotation net 8 the array far-infrared heater being housed, is the thermal source that roasting is fried in shallow oil.Among the figure, the 12nd, the cover of heater, the 13rd, the cover of centrifugal fan.

When frying in shallow oil machine with roasting, earlier peanut is loaded into from feeding mouth 5, with the heating of far-infrared heater limit, the limit drives coghill net by power section 7, makes it slowly to rotate.Simultaneously, the high-speed driving centrifugal fan is gone back in power section 7.Like this, the moisture of peanut just is inhaled into steam vent 11, discharges out of the furnace through blast pipe 9.

For making shelled peanut scarlet and shelled peanut bonding firmly, prevent to peel off and when spraying the polysaccharide aqueous solution, will cover 4 to open, only need above the coghill net 8 that rotates, get final product with the spraying machine sprinkling.

Frying in shallow oil the peanut situation that device processes with processing method of the present invention and roasting of the present invention is:

If 1. seal with air-locked pockets such as nylon, can guarantee that at least 3～5 months quality are constant, can guarantee peanut, particularly from the initial quality of the shelled peanut of Chinese import from external import.

2. in above-mentioned preservation process, eliminated the situation of peanut red coat blackening fully.

3. in transportation, the scarlet peeling phenomenon can not occur substantially, can not occur the 2. scarlet blackening situation of bar yet, improve the value of commodity.

4. the material of handling usefulness mainly is a starch, also can not be harmful to human body so eat like this.

Claims (5)

1, processing method is fried in shallow oil in the roasting of a kind of shelled peanut, the shelled peanut that it is characterized in that the band scarlet that will give birth to contain Propiram (trade mark) aqueous solution 3% below soak flood, dry back bakes and fries in shallow oil, to prevent that peanut red coat from peeling off and oxidation.

2, according to the processing method of claim 1, it is characterized in that in above-mentioned pullulan aqueous solution, contain alphalysed starch and 3% following dextrin below 1%.

3, according to the processing method of claim 1, it is characterized in that: in roasting is fried in shallow oil or roasting fry in shallow oil after 250 ℃, with the aqueous solution that contains 8% Propiram and 2% salad gram peanut is sprayed with vaporific.

4, according to the processing method of claim 1, it is characterized in that: the peanut of band scarlet was used the liquid that contains phytase to soak and is flooded before drying.

5,, it is characterized in that aforesaid liquid is the mixed liquor of Propiram and phytase according to the processing method of claim 4.

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