WO2005058051A1 - Method for processing porous vegetal food products - Google Patents
Method for processing porous vegetal food products Download PDFInfo
- Publication number
- WO2005058051A1 WO2005058051A1 PCT/EP2004/013966 EP2004013966W WO2005058051A1 WO 2005058051 A1 WO2005058051 A1 WO 2005058051A1 EP 2004013966 W EP2004013966 W EP 2004013966W WO 2005058051 A1 WO2005058051 A1 WO 2005058051A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- solution
- gel forming
- food products
- forming solution
- product
- Prior art date
Links
- 235000013305 food Nutrition 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000012545 processing Methods 0.000 title claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 20
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims abstract description 18
- 239000011148 porous material Substances 0.000 claims abstract description 18
- 238000005470 impregnation Methods 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 10
- 229920001202 Inulin Polymers 0.000 claims description 13
- JYJIGFIDKWBXDU-MNNPPOADSA-N inulin Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)OC[C@]1(OC[C@]2(OC[C@]3(OC[C@]4(OC[C@]5(OC[C@]6(OC[C@]7(OC[C@]8(OC[C@]9(OC[C@]%10(OC[C@]%11(OC[C@]%12(OC[C@]%13(OC[C@]%14(OC[C@]%15(OC[C@]%16(OC[C@]%17(OC[C@]%18(OC[C@]%19(OC[C@]%20(OC[C@]%21(OC[C@]%22(OC[C@]%23(OC[C@]%24(OC[C@]%25(OC[C@]%26(OC[C@]%27(OC[C@]%28(OC[C@]%29(OC[C@]%30(OC[C@]%31(OC[C@]%32(OC[C@]%33(OC[C@]%34(OC[C@]%35(OC[C@]%36(O[C@@H]%37[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O%37)O)[C@H]([C@H](O)[C@@H](CO)O%36)O)[C@H]([C@H](O)[C@@H](CO)O%35)O)[C@H]([C@H](O)[C@@H](CO)O%34)O)[C@H]([C@H](O)[C@@H](CO)O%33)O)[C@H]([C@H](O)[C@@H](CO)O%32)O)[C@H]([C@H](O)[C@@H](CO)O%31)O)[C@H]([C@H](O)[C@@H](CO)O%30)O)[C@H]([C@H](O)[C@@H](CO)O%29)O)[C@H]([C@H](O)[C@@H](CO)O%28)O)[C@H]([C@H](O)[C@@H](CO)O%27)O)[C@H]([C@H](O)[C@@H](CO)O%26)O)[C@H]([C@H](O)[C@@H](CO)O%25)O)[C@H]([C@H](O)[C@@H](CO)O%24)O)[C@H]([C@H](O)[C@@H](CO)O%23)O)[C@H]([C@H](O)[C@@H](CO)O%22)O)[C@H]([C@H](O)[C@@H](CO)O%21)O)[C@H]([C@H](O)[C@@H](CO)O%20)O)[C@H]([C@H](O)[C@@H](CO)O%19)O)[C@H]([C@H](O)[C@@H](CO)O%18)O)[C@H]([C@H](O)[C@@H](CO)O%17)O)[C@H]([C@H](O)[C@@H](CO)O%16)O)[C@H]([C@H](O)[C@@H](CO)O%15)O)[C@H]([C@H](O)[C@@H](CO)O%14)O)[C@H]([C@H](O)[C@@H](CO)O%13)O)[C@H]([C@H](O)[C@@H](CO)O%12)O)[C@H]([C@H](O)[C@@H](CO)O%11)O)[C@H]([C@H](O)[C@@H](CO)O%10)O)[C@H]([C@H](O)[C@@H](CO)O9)O)[C@H]([C@H](O)[C@@H](CO)O8)O)[C@H]([C@H](O)[C@@H](CO)O7)O)[C@H]([C@H](O)[C@@H](CO)O6)O)[C@H]([C@H](O)[C@@H](CO)O5)O)[C@H]([C@H](O)[C@@H](CO)O4)O)[C@H]([C@H](O)[C@@H](CO)O3)O)[C@H]([C@H](O)[C@@H](CO)O2)O)[C@@H](O)[C@H](O)[C@@H](CO)O1 JYJIGFIDKWBXDU-MNNPPOADSA-N 0.000 claims description 13
- 229940029339 inulin Drugs 0.000 claims description 13
- 235000013311 vegetables Nutrition 0.000 claims description 6
- 238000007605 air drying Methods 0.000 claims description 5
- 150000004676 glycans Chemical class 0.000 claims description 5
- 229920001542 oligosaccharide Polymers 0.000 claims description 5
- 150000002482 oligosaccharides Chemical class 0.000 claims description 5
- 229920001282 polysaccharide Polymers 0.000 claims description 5
- 239000005017 polysaccharide Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000001143 conditioned effect Effects 0.000 claims 1
- 239000000499 gel Substances 0.000 description 46
- 230000008901 benefit Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000003349 gelling agent Substances 0.000 description 5
- 235000019568 aromas Nutrition 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000004108 freeze drying Methods 0.000 description 3
- 238000001879 gelation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 210000003093 intracellular space Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 235000013406 prebiotics Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 235000011888 snacks Nutrition 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000005418 vegetable material Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
- A23L3/3463—Organic compounds; Microorganisms; Enzymes
- A23L3/3562—Sugars; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/02—Dehydrating; Subsequent reconstitution
- A23B7/022—Dehydrating; Subsequent reconstitution with addition of chemicals before or during drying, e.g. semi-moist products
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B7/148—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/157—Inorganic compounds
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/158—Apparatus for preserving using liquids
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/16—Coating with a protective layer; Compositions or apparatus therefor
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
- A23L19/01—Instant products; Powders; Flakes; Granules
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
- A23L19/03—Products from fruits or vegetables; Preparation or treatment thereof consisting of whole pieces or fragments without mashing the original pieces
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/20—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
- A23L29/206—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
- A23L29/244—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin from corms, tubers or roots, e.g. glucomannan
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
- A23L3/54—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution using irradiation or electrical treatment, e.g. ultrasonic waves
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Definitions
- the present invention concerns a method for processing raw or fresh porous vegetal food products. More particularly the invention concerns a method for processing raw or fresh porous vegetal food products to make them storable at room temperature. The method of the invention is particularly suitable for processing mushrooms. The invention also concerns the use of a particle gel forming solution for impregnating porous vegetable material.
- the freeze-dry method applied to the mushrooms achieves these goals. According to this method, the mushrooms are first sliced, then frozen and while frozen are subjected to a very low pressure so that the water present in the mushrooms as ice is removed by sublimation. Although the freeze-drying method has the advantages of producing food products that rehydrate readily and have a reduced loss in volume, this method requires relatively complex and expensive installations increasing the cost price these mushrooms.
- Another object of the invention is to provide such a method using a gel forming solution wherein the gelation occurs without additional treatment after the impregnation of the food product.
- Another object of the invention is to provide such a method wherein the shrinkage during drying is reduced.
- Another object of the invention is to provide such a method that reduces the loss of the aromas contained in the product.
- the invention therefore concerns a method for processing fresh porous vegetal food products, comprising the step of impregnating said food products with an edible particle gel forming solution, wherein the pores or interstices of said vegetal food product are filled with said solution.
- the gel to be formed is selected in the group of the particulate type gels, preferably a polysaccharide or oligosaccharide solution.
- the particulate gel forming solution used in the method of the invention is an inulin solution, the percentage of inulin in the gel forming solution being comprised between 15% and 40%, preferably between 20% and 35% and most preferably about 30%.
- inulin is that it fosters the gut health through a prebiotic effect as well as increases the bowel movement.
- the product after impregnation can be subjected to a drying step allowing moisture levels which insure shelf stability.
- the moisture level is advantageously brought to a level comprised between 2% and 10% and preferably between 2% and 5%. Owing to this additional drying step one can obtain a product extremely stable on storage while retaining its volume and shape.
- the drying step comprises an air drying step followed by a microwave vacuum drying.
- the use of the microwave drying step is advantageous in that it causes the products to be dried to lightly swell, thereby reducing the volume reduction effect of the drying step.
- drying time and thermal stress are reduced by microwave vacuum drying.
- Another advantage of the invention consists in being able to obtain products which are less brittle and less prone to dust formation than the freeze-dried products while still exhibiting a good crispiness.
- the products of the invention have thus good organoleptic properties.
- the products prepared according to the method of the invention further include the following advantages.
- the method of the invention ensures a good protection against oxidation insofar the gel is in direct contact with the walls of pores or interstices act as a oxygen barrier.
- the method of the invention allows the loss of aromas to be reduced , because the diffusion of aroma molecules through the pores or interstices is hampered by the gel filler.
- the invention also concerns food products made from a fresh porous vegetal product comprising pores or interstices filled with an edible gel forming solution.
- a fresh porous vegetal product comprising pores or interstices filled with an edible gel forming solution.
- the food product is "fresh” i.e. it has not been dried after impregnation, it can easily be stored at cold temperatures typically around 5°C and keep its appearance, taste and shape for several days.
- the food product when the food product has been subjected to a drying step after impregnation, the food product can be stored at room temperature indefinitely while retaining its original qualities in particular its appearance, shape, texture and taste.
- the invention also concerns the use of an edible gel forming solution for impregnating a porous vegetable food product comprising a structure of pores or interstices filled with air or other gases, for reinforcing said structure of said product after the drying of said product.
- the general idea of the invention consists in providing storable porous vegetable food products by impregnating said products, while they are in a fresh state, with an edible particle gel forming solution so as to avoid excessive shrinkage, in particular after dehydration, without using expensive conventional freeze-drying techniques.
- the method of the invention is particularly suitable for processing mushrooms but is in no way limited to such products and can of course be applied to any vegetable food product having a structure made of pores or interstices that can be filled or impregnated by an edible particle gel forming solution.
- the porous vegetable food products will be prepared preferably sliced or diced before being subjected to the method of the invention according to their size or nature.
- the gel forming solution is chosen from group of ingredients that form particulate type gels since particle gels have a good resistance to shrinkage after drying. Gel forming solutions such as polysaccharide or oligosaccharide solutions are particularly suited. A gel forming solution containing inulin has given particularly good results. Inulin has the advantage of being economical and not affecting the organoleptic properties of the food product adversely.
- the concentration of inulin in the solution is chosen to be sufficient to form a gel, as the case may arise with or without energy input or output, or even with the use of a co-gelling agent.
- the percentage of inulin in the gel forming solution is comprised between 15% and 40%, preferably between 20% and 35% and most preferably about 30%.
- the gel formation time depends on the concentration of the gel forming agent in the solution, the higher the concentration the lower the gel forming time. For example, at ambient temperature the gel formation time is of approximately 12 hours for a gel forming solution containing 20% of gelling agent, while the gel formation time is of approximately 30 minutes for a gel forming solution containing 30% of gelling agent.
- the times and concentrations needed to form a gel may vary considerably with the inulin fraction employed. Gelation may even occur during dehydration, because water removal increases the effective concentration of the gelling agent, thereby shortening the induction time for gelation.
- the impregnation of the food product can be made by any known manner.
- One impregnation method consists in dipping the food products into the gel forming solution and let the solution slowly and continuously penetrate into the pores or interstices of the product and removing the products after the desired impregnation level has been obtained.
- Another impregnation method consists in placing the food products in batches or continuously within a chamber or container together with the gel forming solution and subjecting the food products to a pressure sufficient to compress the gaseous volume fraction of the product thereby introducing the gel forming solution in the pores or interstices thereof.
- the pressure onto the product can be applied mechanically directly by physically compressing the product or alternatively by increasing the pressure present in a closed chamber.
- This method can be repeated several times on a same batch of product to achieve the desired impregnation level.
- Yet another impregnation method can be envisaged This method consists in placing the food products in batches or continuously within a chamber or container containing the gel forming solution and subjecting the food products to a vacuum sufficient to remove at least part of the air or other gases from the pores or interstices thereof and breaking the vacuum thereby filling the pores or interstices of said food products with the gel forming solution by suction.
- This method can also be repeated several times on a same batch of product to achieve the desired impregnation level.
- the food products are preferably subjected to a step wherein the gel in the interior of the pores or interstices is formed.
- This step can be implemented with or without energy input or output as mentioned above.
- the step consists in leaving the impregnated products for a time sufficient for the gel to form, this time being directly dependent on the concentration of the gelling agent used in the solution.
- the product can be used as such in a "semi fresh" state and kept for several days at a temperature of approximately 5°C before consumption. If one desires to obtain a product, which can be kept quasi indefinitely at room temperature, the product can be subjected to an additional drying step, which allows a moisture level insuring shelf stability to be reached.
- the drying comprises an air drying step typically at a temperature of 30-60 °C for a time sufficient to reach a first level of moisture in the food product.
- the air drying step is preferably continued by a microwave vacuum drying step wherein the food product is subjected to a microwave field of typically 0.5 to 5 Watt per gram of product power density which further reduces the content of moisture in the food product rapidly while puffing it at the same time in the case of high microwave power.
- the products can be subjected to a final air drying step to remove the remaining moisture and achieve the desired moisture content of the finished product.
- These present finished products have a moisture content ranging from about 2% to 10% preferably from 2% to 5%.
- the finished food products prepared according to the method of the invention can be used in various ways.
- the food products can be consumed in the dry state as snack items or after rehydration in food preparations such as soups, sauces, dehydrated meals or the like.
- the present dried edible finished food products have a remarkable extended storage stability while maintaining the desirable texture, color and appearance. These dried products can then be directly packaged into bags. It goes without saying that the invention is not limited to that has just been described and that simple modifications and variants of the method can be envisaged without departing from the scope of the present invention defined in the appended claims.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Microbiology (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Preparation Of Fruits And Vegetables (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04803635A EP1691620A1 (en) | 2003-12-10 | 2004-12-08 | Method for processing porous vegetal food products |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03028383A EP1541031A1 (en) | 2003-12-10 | 2003-12-10 | Method for processing porous vegetal food products |
EP03028383.2 | 2003-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005058051A1 true WO2005058051A1 (en) | 2005-06-30 |
Family
ID=34486174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/013966 WO2005058051A1 (en) | 2003-12-10 | 2004-12-08 | Method for processing porous vegetal food products |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP1541031A1 (en) |
WO (1) | WO2005058051A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2006345964B2 (en) * | 2006-07-12 | 2014-02-06 | Nestec S.A. | Preserved slices of vegetables and fruits and processing methods |
EP2453764A1 (en) * | 2009-07-17 | 2012-05-23 | Koninklijke Coöperatie Cosun U.A. | Carbohydrate-enriched plant pulp composition |
CN103960350A (en) * | 2013-01-24 | 2014-08-06 | 陈其钢 | Characteristic mushroom can and production method thereof |
SE537668C2 (en) * | 2013-04-26 | 2015-09-29 | Stora Enso Oyj | Process for treating a food product with a solution comprising a nanofibrillated polysaccharide and mono-treated product |
ES2941158A1 (en) * | 2021-11-16 | 2023-05-17 | Centro De Investig Y Tecnologia Agroalimentaria De Aragon | PROTECTIVE PACKAGING FOR FOOD PRODUCTS (Machine-translation by Google Translate, not legally binding) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53127851A (en) * | 1977-04-13 | 1978-11-08 | Kanebo Ltd | Production of green dry vegetable |
JPS5428840A (en) * | 1977-08-02 | 1979-03-03 | Kouichi Ogawa | Protecting and preserving method for plant and food |
US4350711A (en) * | 1977-01-28 | 1982-09-21 | Rich Products Corporation | Methods of infusing fruits |
JPS62210960A (en) * | 1986-03-13 | 1987-09-17 | Zenzo Nakagiri | Treatment of shiitake mushroom |
EP0266141A2 (en) * | 1986-10-28 | 1988-05-04 | Massey University | Texture stable food product |
JPS63297305A (en) * | 1987-05-28 | 1988-12-05 | Katakura Chitsukarin Kk | Coating agent for seed and method for treating seed |
JPH0484881A (en) * | 1990-07-26 | 1992-03-18 | Kyowa Hakko Kogyo Co Ltd | Fruit-containing alcoholic drink and production thereof |
US5126154A (en) * | 1989-03-21 | 1992-06-30 | Le Champignon, Inc. | Method of processing mushrooms using starch, gum, protein and water |
US5376391A (en) * | 1991-04-03 | 1994-12-27 | The United States Of America As Represented By The Secretary Of The Agriculture | Method of increasing the stability of fruits, vegetables or fungi and composition thereof |
WO1997023137A1 (en) * | 1995-12-26 | 1997-07-03 | Blaise Mcardle | Food preserving composition and method of use |
WO2003001921A2 (en) * | 2001-06-28 | 2003-01-09 | Biocoat Ltd. | Composition for coating fruits, vegetables and fowl eggs, especially useful for organic produce |
KR20030051101A (en) * | 2001-12-12 | 2003-06-25 | 최현옥 | Taste, aroma and shiny rice to cook rice without washing it |
-
2003
- 2003-12-10 EP EP03028383A patent/EP1541031A1/en not_active Withdrawn
-
2004
- 2004-12-08 WO PCT/EP2004/013966 patent/WO2005058051A1/en not_active Application Discontinuation
- 2004-12-08 EP EP04803635A patent/EP1691620A1/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4350711A (en) * | 1977-01-28 | 1982-09-21 | Rich Products Corporation | Methods of infusing fruits |
JPS53127851A (en) * | 1977-04-13 | 1978-11-08 | Kanebo Ltd | Production of green dry vegetable |
JPS5428840A (en) * | 1977-08-02 | 1979-03-03 | Kouichi Ogawa | Protecting and preserving method for plant and food |
JPS62210960A (en) * | 1986-03-13 | 1987-09-17 | Zenzo Nakagiri | Treatment of shiitake mushroom |
EP0266141A2 (en) * | 1986-10-28 | 1988-05-04 | Massey University | Texture stable food product |
JPS63297305A (en) * | 1987-05-28 | 1988-12-05 | Katakura Chitsukarin Kk | Coating agent for seed and method for treating seed |
US5126154A (en) * | 1989-03-21 | 1992-06-30 | Le Champignon, Inc. | Method of processing mushrooms using starch, gum, protein and water |
JPH0484881A (en) * | 1990-07-26 | 1992-03-18 | Kyowa Hakko Kogyo Co Ltd | Fruit-containing alcoholic drink and production thereof |
US5376391A (en) * | 1991-04-03 | 1994-12-27 | The United States Of America As Represented By The Secretary Of The Agriculture | Method of increasing the stability of fruits, vegetables or fungi and composition thereof |
WO1997023137A1 (en) * | 1995-12-26 | 1997-07-03 | Blaise Mcardle | Food preserving composition and method of use |
WO2003001921A2 (en) * | 2001-06-28 | 2003-01-09 | Biocoat Ltd. | Composition for coating fruits, vegetables and fowl eggs, especially useful for organic produce |
KR20030051101A (en) * | 2001-12-12 | 2003-06-25 | 최현옥 | Taste, aroma and shiny rice to cook rice without washing it |
Non-Patent Citations (6)
Title |
---|
DATABASE WPI Section Ch Week 197850, Derwent World Patents Index; Class D13, AN 1978-90415A, XP002275191 * |
DATABASE WPI Section Ch Week 197915, Derwent World Patents Index; Class D13, AN 1979-28592B, XP002275193 * |
DATABASE WPI Section Ch Week 198743, Derwent World Patents Index; Class D13, AN 1987-302158, XP002275192 * |
DATABASE WPI Section Ch Week 198903, Derwent World Patents Index; Class C03, AN 1989-020572, XP002275190 * |
DATABASE WPI Section Ch Week 200380, Derwent World Patents Index; Class D13, AN 2003-861532, XP002275189 * |
PATENT ABSTRACTS OF JAPAN vol. 016, no. 304 (C - 0959) 6 July 1992 (1992-07-06) * |
Also Published As
Publication number | Publication date |
---|---|
EP1691620A1 (en) | 2006-08-23 |
EP1541031A1 (en) | 2005-06-15 |
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