VEGETABLE OIL FOR THE PREPARATION OF PASTRY

Abstract: The present invention concerns a vegetable alimentary oil, preferably virgin or extra-virgin olive-oil, carried to a particular solid state, so as to increase notably the volume for making it suitable to the product of short pastry, friable biscuits and the like, in substitution of animal fats, butter and margarines. To achieve such features, the oil is solidified by carrying it to low temperature in a whisking device, with simultaneous air or inactive gas inlet. The oil could be aromatised with natural substances, which do not degenerate thanks to the low temperature of maintenance of the product.

Description: VEGETABLE OIL FOR THE PREPARATION OF PASTRY TECHNICAL FIELD The present invention concerns a vegetable alimentary oil, preferably virgin or extra-virgin olive-oil, carried to a particular solid state, so as to increase notably the volume for making it suitable to the preparation of short pastry, friable biscuits or other alimentary products. BACKGROUND ART The short pastry and the friable pastas for sweets are achieved by using solid state fats, as butter, margarines or lard. In these products the friability does not come from the action of yeasts, but from the solid fats mixed very quickly with the other ingredients (flour, eggs and sugar) , so as to avoid the melting. The so obtained mixture incorporates uniformly fat particles that are still in the solid state and that, during the subsequent cooking, change to the liquid state, with the consequent volumetric reduction. This volume reduction creates so much small empty spaces, that determine the characteristic alveolar typical section of the short pastry. The oil usage would be advantageous because there is none ingestion of an high quantity of cholesterol or saturated fats that are injurious to the health, and that are included in the animal fats, in the butter and in the margarines, but neither the liquid oil, nor the normally solidified oil, would have that volume reduction necessary to make the wished porosity. DISCLOSURE OF THE INVENTION The object of the present invention is to allow the preparation of short pastry and friable pastas for sweets, or for alimentary products in general, with vegetable alimentary oil, preferably virgin or extra-virgin olive-oil, in substitution of the currently used fats. Such object is achieved by a method for making an ingredient based on vegetable alimentary oil, preferably virgin or extra-virgin olive-oil, essentially according to the first claim. BEST MODE OF CARRYING OUT THE INVENTION The method for making an ingredient based on vegetable alimentary oil, preferably virgin or extra-virgin olive-oil, for the preparation of short pastry, such as friable biscuits or the like, comprises: the agitation of an amount of oil with the consequent imprisonment of a volume of a gas in the oil amount; the continuous mixing and progressive refrigeration of the mixture made up of this oil and gas with the consequent volumetric expansion of the mixture so obtained, and the solidification of this latter for carrying out the ingredient used in the production of the short pastry. The gas used is air or an inactive gas, such as the nitrogen for avoiding the ingredient oxidation. The mixing of the oil with the gas could be carried out in a forced manner, for instance through suitable pomps, while the final volumetric expansion of the ingredient could range from 20 per cent to 40 per cent of the initial volume of the oil amount, with an optimal percentage of 36 per cent. The refrigeration reaches a temperature ranging from -25°C. to -30°C. , while the temperature of the ingredient in the solid state ranges from -10°C. to -15°C. The method could further include the cooling of the oil amount before the agitation of this latter. Therefore the ingredient includes a prearranged oil amount and a plurality of little gas bubbles imprisoned therein by virtue of the fact that the ingredient is kept to its solid state by means of low temperatures. In this way a uniform mass of solidified oil is achieved, with notably increased volume, that causes, during the mixture cooking, the same effects of the fats used up to now: the short pastry presents an inside alveolar structure including empty spaces at the end of the cooking process. The solidification does not happen for a chemical effect of hydrogenation and glut of the molecules, as it happens for the margarines, so as to the alimentary hygiene this preparation marks another achievement in the struggle against the cholesterolemias and the cardiovascular illness, due to the ingestion of high quantity of cholesterol and saturated fats. In fact, the main advantage of the olive-oil consists in that it presents a percentage of fat acids (particularly linoleic acid 8-10 per cent) very similar to that presented by the lipidic component of the maternal milk and by the composition of the human adipose tissue (linoleic acid 11 per cent) . Therefore, such oil is rather digestible, activates the hepatic functionality and lowers the cholosterolemia, in comparison with that does not happen with the other ingredients based on alimentary fats. It has also been verified that the new ingredient has a power of particularly high seasoning, that allows the reduction of the fat amount inside the alimentary products, till the percentage of also beyond the 30 per cent. Another useful usage of the described solid-creamy state oil is the aromatised seasonings. These latter are aromatised with synthetic compounds without any aromatic raw materials, that would be subject to fermentation and alterations because of their water content. The natural amortisers (paprika, garlic, truffle, etc.) do not degenerate with the described solid oil, by virtue of the low maintenance temperature of the product . The ingredient, constituting by the cream of solidified and expanded oil, could be packaged in small basins, jars, pats or in any other desired way.

Claims: CLAIMS 1) Method for making an ingredient based on vegetable alimentary oil, preferably virgin or extra-virgin olive-oil, for the preparation of short pastry, such as friable biscuits or the like, said method being characterized in that it includes: the agitation of an amount of oil with the consequent imprisonment of a volume of a gas in the said oil amount; the continuous mixing and progressive refrigeration of the mixture made up of the said oil and the said gas with the consequent volumetric expansion of the said mixture so obtained; and the solidification of the said mixture for carrying out the said ingredient used in the production of the said short pastry. 2) Method according to the claim 1 characterised in that said imprisonment of said gas in said ingredient is due to a forced intake of an amount of said gas in said oil amount . 3) Method according to the claim 1 characterised in that said gas is air. 4) Method according to the claim 1 characterised in that said gas is an inactive gas, preferably nitroge . 5) Method according to the claim 1 characterised in that the said volumetric expansion of the said ingredient ranges from 20 per cent to 40 per cent of the initial volume of the said oil amount, with an optimal percentage preferably of 36 per cent. 6) Method according to the claim 1 characterised in that the said refrigeration reaches a temperature ranging from -25°C. to -30°C. 7) Method according to the claim 1 characterised in that the said ingredient in the solid state has a temperature ranging from -10°C. to -15°C. 8) Method according to any of the preceding claims characterised in that it further includes, before the cited mixture solidification, the aromatising of said ingredient with natural substances that are able to keep perfectly by virtue of the low maintenance temperature of the ingredient itself. 9) Method according to any of the preceding claims characterised in that it further includes, at the end of the cited mixture solidification, the packaging of the cited solidified ingredient inside packages such as small basins, or jars, or pats. 10) Method according to any of the preceding claims characterised in that it further includes, before the cited agitation of the said oil amount, the cooling of this latter. 11) Method according to any of the preceding claims characterised in that the said vegetable alimentary oil is olive-oil, preferably of the type virgin or extra-virgin. 12) Ingredient based on vegetable alimentary oil, preferably virgin or extra-virgin olive-oil, for the preparation of short pastry, such as friable biscuits or the like having, after the cooking process, an inside alveolar structure including empty spaces, the said ingredient being characterized in that it includes an amount of said oil and a plurality of little gas bubbles imprisoned therein by virtue of the fact that the said ingredient is kept to its solid state. 13) Ingredient according to the claim 12 characterised in that it has a notably higher volume than the volume of the cited oil amount . 14) Ingredient according to the claim 12 or the claim 13 characterised in that the said vegetable alimentary oil is olive-oil, particularly of the virgin type. 15) Ingredient according to the claim 12 or the claim 13 characterised in that the said vegetable alimentary oil is olive-oil, particularly of the extra-virgin type. 16) Ingredient according to any of the claims from 12 to 15 characterised in that it further includes at last an aromatiser constituted by natural substances that are able to keep perfectly by virtue of the low maintenance temperature of the said ingredient .

Inventors: BONAZELLI PAOLO, BONAZELLI, PAOLO
Applicants: BONAZELLI MARCO, BONAZELLI PAOLO, BONAZELLI, MARCO, BONAZELLI, PAOLO
Application year: 1996
Main classification: C11B15
IPC codes: A21D2, A21D13, A23D9, C11B15