JPS6235748B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for roasting roasted peanuts, etc., and in particular, to a method for roasting roasted peanuts, etc., in which raw peanuts are distributed in bags and roasted in the bags immediately before consumption. This relates to the method of frying.

[Conventional technology]

Peanuts are widely used because of their rich oil and fat content, protein, and unique flavor. Among them, roasted peanuts have a unique aroma and flavor, and when we talk about peanuts, we often refer to roasted peanuts.

There are conventional methods for producing roasted peanuts, such as roasting with the outer shell on, removing the outer shell and roasting only the thin skin, and roasting after peeling the thin skin as well. This was done by heating while rotating or stirring in an oven.

[Problem that the invention seeks to solve]

The aroma, texture, and flavor of roasted peanuts are the key to their life, and for that reason, it is ideal to eat raw peanuts immediately after roasting, but there are problems with the sales format and roasting method, and conventionally The products are packed into bags and traded. On the other hand, when peanuts are roasted, their oils and fats are liberated, which makes them susceptible to oxidation by oxygen in the air, so in order to maintain their freshness, it is best to eat them with the outer shell and thin skin on as much as possible. Roasting with the outer shell on results in a lumpy texture, which requires a large oven and does not increase production efficiency. Therefore, it has become common to leave only the thin skin to prevent the flavor from changing over time, to increase the roasting effect, and to omit the hassle of removing the outer shell when eating.

However, this method of roasting peanuts also has the following problems.

In other words, although the thin skin remains, on average a considerable number of days pass from roasting to the time consumers eat it, and during that time the oil and fat content is oxidized and the flavor inevitably deteriorates. It's put away.

Next, the thin skin is quite firmly attached to raw peanuts, but when roasted with heat, the seeds shrink.
It peels off easily and its antioxidant effect becomes weaker. Furthermore, in conventional roasting, the peanuts are stirred in the oven or rotated to fluidize the peanuts and evenly spread the heat, which makes the thin skins easy to peel off.

The present invention was achieved as a result of intensive studies to solve the problems of the conventional roasting technique for roasted peanuts.

Therefore, an object of the present invention is to provide a method for roasting roasted peanuts that does not reduce freshness during the product transaction process and has excellent aroma and flavor.

[Means for solving problems]

The means of the present invention for solving the above problems are as follows.

That is, two laminated films made by laminating a heat-fusible synthetic resin film and a heat-resistant synthetic resin film were stacked together, the peripheral edges were fused, and the outer shell was removed into a bag with ventilation holes provided at appropriate locations. After introducing raw peanuts, the input port is fused and sealed, and the raw peanut bag is heat-treated in a microwave oven.

The bag for storing fresh peanuts used in the present invention is made by fusing the periphery of a laminated film made by laminating a heat-fusible synthetic resin film and a heat-resistant synthetic resin film, and is commercially available. Nylon 11, 12, 2 is used as a fusible synthetic resin film.
5,46 or aliphatic polyester etc. are used,
As the heat-resistant synthetic resin film, aromatic polyester, polypropylene, polystyrene, polycarbonate, etc. are used.

As raw peanuts, it is most preferable to use raw peanuts obtained by tearing only the outer shell of raw peanuts with shells, but in some cases, peanuts with the thin skin peeled may also be used.

In the present invention, raw peanuts are placed in a bag, the input port is fused and sealed, and the bag is shipped as a product. Although raw peanuts are living organisms, they are still seeds, so they continue to live in the bag and do not lose their freshness. Then, just before eating, it is roasted, which is done in the microwave. A commercially available microwave oven that emits microwaves may be used. Microwaves can pass through plastic, so if you place the peanuts in a line as flat as possible in a bag containing peanuts, and if necessary, turn it upside down once, the peanuts will generate heat and can be roasted. The biggest difference between roasting in a microwave oven and roasting in a conventional oven is that it can be done while the bag is in the oven, and since the microwave generates heat from inside, there is no need for stirring, and the skin is thinner. It must not peel off.

The fact that this thin skin does not peel off is a special feature of the combination of peanuts and a microwave oven, and is a synergistic effect. Therefore, it is fundamentally different from simply heating corn or the like in a microwave oven.

The roasting process of the present invention can be carried out by the final consumer at home, by an intermediary, such as a snack store, which roasts the product and serves it to the customer, or by a manufacturer and seller who sells the product to the store. be.

〔Example〕

Two laminated films in which a heat-fusible synthetic resin film was laminated on one side of a heat-resistant synthetic resin film were stacked on top of each other, three peripheral edges were fused, and ventilation holes were provided at three locations to produce a bag. The outer shell of the raw peanut was removed, and the raw peanut with the thin skin was placed in the bag, and the input port was fused and sealed.

The situation at that time is shown in the figure. In the figure, 1 is a bag, 2 is a fused part, 3 is a sealed inlet, 4 is a ventilation hole, and 5 is a peanut.

This bag containing raw peanuts was stored in the refrigerator (5°C) for one week, then placed in a microwave oven, flattened so that the peanuts were lined up on a flat surface, and the scale was set to 500 W. After processing for 2 minutes, the bag was turned over and processed in the same manner for 2 minutes. .

For comparison, fresh peanuts with their outer shells removed were roasted by heating and stirring in an oven, placed in the same bag as above, and placed in the refrigerator. However, in this case no ventilation holes were provided to prevent oxidation as much as possible.
After one week, they were taken out of the refrigerator and tasted for comparison with those produced by the method of the present invention. the result,
The roasted peanuts according to the present invention had a firm thin skin and were excellent in both aroma and flavor, but those roasted using the conventional method for comparison had peels that had peeled off considerably, and the aroma was particularly lacking.

〔Effect of the invention〕

Since the present invention involves placing raw peanuts in a synthetic resin film bag and roasting them in a microwave oven, the following effects are achieved.

(b) When peanuts are raw, their thin skins do not ripple and their freshness does not deteriorate, so you can enjoy the flavor immediately after roasting.

(b) Roasting in the microwave does not require stirring, and since the thin skin does not come off, the aroma can be preserved until just before eating.

(c) Raw peanuts packed in heat-resistant synthetic resin film bags can be traded on the market.

[Brief explanation of the drawing]

The figure is a perspective view of bagged peanuts used in the present invention. 1... Bag, 2... Fusion part, 3... Inlet, 4... Ventilation hole, 5... Peanuts.

Claims (1)

[Claims] 1 Two laminated films made by laminating a heat-fusible synthetic resin film and a heat-resistant synthetic resin film are stacked together, the peripheral edges are fused, and the outer shell is removed in a bag with ventilation holes provided at appropriate locations. A method for roasting roasted peanuts, etc., characterized in that after introducing peanuts, the input port is fused and sealed, and the bag containing raw peanuts is heated as it is in a microwave oven.