EP0068530A1 - Verpackung für Lebensmittel, z.B. Schaltiere, die in der Verpackung Wasser abgeben, und Verpackungsverfahren - Google Patents

Verpackung für Lebensmittel, z.B. Schaltiere, die in der Verpackung Wasser abgeben, und Verpackungsverfahren Download PDF

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Publication number
EP0068530A1
EP0068530A1 EP82200644A EP82200644A EP0068530A1 EP 0068530 A1 EP0068530 A1 EP 0068530A1 EP 82200644 A EP82200644 A EP 82200644A EP 82200644 A EP82200644 A EP 82200644A EP 0068530 A1 EP0068530 A1 EP 0068530A1
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EP
European Patent Office
Prior art keywords
package
liquid
superabsorbing
package according
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82200644A
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English (en)
French (fr)
Inventor
Antonius Maria De Gouw
Jacobus Prins
Jacobus Dingemanse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo NV
Original Assignee
Akzo NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akzo NV filed Critical Akzo NV
Publication of EP0068530A1 publication Critical patent/EP0068530A1/de
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids

Definitions

  • the invention relates to a package for foodstuffs, such as shell fish, more particularly mussels, oysters, periwinkles and the like, which while packaged may exude liquid, the exuded liquid substantially being kept isolated from the foodstuffs.
  • foodstuffs of the type mentioned above are packaged in the conventional way there may be problems with regard to the exuded liquid, especially if the foodstuff is likely to exude liquid in an amount of 10-40 per cent by weight, based on the original total weight of the foodstuff.
  • conventionally packaged fresh mussels there may particularly be problems in that after some hours fresh mussels all of a sudden exude a fairly large amount of aqueous liquid in a relatively short time.
  • the present invention has for its object to provide a package of the type indicated in the introduction which no longer displays the afore-mentioned drawbacks.
  • the package according to the invention is characterized in that it contains a superabsorbing material for absorbing and retaining the liquid.
  • the invention is therefore based on the knowledge that said problems to packaged foodstuffs which exude a relatively large amount of liquid may be solved when steps are taken such that the liquid is rapidly and effectively absorbed.
  • the package for the foodstuffs according to the invention is particularly characterized in that the superabsorbing material is of the type which has a total liquid absorption capacity of at least 10 millilitres of test liquid per gramme at a pressure of 3000 N/m 2 , measured in the manner indicated in the description.
  • said total liquid absorption capacity of the superabsorbing material is advantageously in the range of from 15 to 30 ml/g, preferably about 20 ml/g, and not higher than 50 to 100 ml/g,at a pressure of 300 0 N/fm2.
  • the use is considered of such a superabsorbing material that it can be filled to 60-80% of its total liquid absorption capacity within a period of 1 minute.
  • a favourable embodiment of the package is characterized according to the invention in that use is made of such a superabsorbing material that said total liquid absorption capacity of 10 ml/g at a pressure of 3000 N/m 2 can be reached within a period of 2 minutes.
  • the package is preferably characterized according to the invention in that the superabsorbing material is formed from cross-linked cellulose and/or cellulose ethers, such as carboxymethyl cellulose (CMC), hydroxyethyl cellulose, hydroxypropyl cellulose and methyl hydroxyethyl cellulose. Said products based on CMC are commercially available under the trade name AKUCELL-S.
  • CMC carboxymethyl cellulose
  • the superabsorbing material is formed from salts of cross-linked polyacrylic acid, polyacrylates cross-linked with polyamide epichlorohydrin, cross-linked polystyrene sulphonate and cross-linked polyacrylamide.
  • the superabsorbing material may alternatively be formed from starch derivatives such as starch-acrylonitrile graft copolymers and cross-linked starch derivatives. In principle also use may be made of combinations of said superabsorbing substances.
  • a simple embodiment of the package is characterized according to the invention in that the superabsorbing material present in the package is contained in a separate sachet having a wall of liquid-permeable material.
  • a favourable embodiment according to the invention is characterized in that the superabsorbing material is present in a compartment which forms part of the container and is positioned at the bottom thereof.
  • the fresh mussels may be packaged in a liquid tight, plastic bag at the bottom of which there is present a small amount of the superabsorbing powder.
  • the presence of as little as 15 grammes of the superabsorbing powder available under the trade name AKUCELL-S, a product based on carboxymethyl cellulose, in a bag of 1 kg of fresh mussels is amply sufficient for the "leakage water" to be absorbed from the mussels even under the pressure exerted by the weight of the mussels.
  • the superabsorbing substances to be used according to the invention are generally employed in the form of a powder.
  • the particle size of such powdered substances is generally in the range of 0,01 to 2 mm. These particles may be in the form of randomly shaped granules or small fibres.
  • the package contains an amount of said superabsorbing material such that the total amount of liquid to be absorbed by it approximately corresponds to the maximum amount of liquid to be exuded by the packaged product.
  • the invention also comprises packaging means, such as containers in the form of a bag, a carrier bag or a box, which are destined for packaging liquid exuding foodstuffs and contain some amount of said superabsorbing material.
  • the superabsorbing material present in the package may with advantage be contained in a separate bag or sachet having a liquid-permeable wall.
  • the sachet ray be provided with directions, for instance in the form of a printed text, indicating the object and the liquid absorption capacity of the sachet.
  • the package may contain one or more of such sachets of superabsorbing powder.
  • the package may be provided according to the invention with a separate superabsorbing material-containing compartment having a liquid-permeable wall.
  • the invention also comprises a method of packaging foodstuffs such as shellfish, more particularly mussels, oysters, periwinkles and the like in a container, such as a plastic bag, a carrier bag or a box, which products exude moisture during their stay in the package, characterized in that in the container there is some amount of said superabsorbing material as well as the packaged product.
  • a container such as a plastic bag, a carrier bag or a box, which products exude moisture during their stay in the package, characterized in that in the container there is some amount of said superabsorbing material as well as the packaged product.
  • a special form of packaging mussels is characterized according to the invention by a first, essentially closed, container which is provided at its upper side with a number of openings, and a second container provided with a great many openings for admitting the mussels, and a layer of superabsorbing material which lies on the bottom of the first container and between the first and the second container.
  • the first container is advantageously in the form of a plastic bag which is sealed along its upper side and provided with a number of air holes near the sealing seam
  • the second container is also a plastic bag, there being provided a layer of supporting material containing the superabsorbing material.
  • the mussel package according to the invention on the one hand permits the admission of air to the packaged mussels and on the other prevents the release of liquid from the package.
  • the invention comprises more particularly a mussel package for 2-5 kg of mussels, which package contains 10-70 grammes of said superabsorbing material.
  • the invention also relates to specially packaged foodstuffs of which the package is in the form according to the invention.
  • An important advantage to the packaged product according to the invention is that the additional weight resulting from the use of superabsorbing material can be kept very low because of the high liquid absorption capacity of the powder. - Consequently, also the space taken up by the superabsorbing powder is very small, so that the presence in the package of a small sachet or compartment containing superabsorbing powder will not give any difficulty at all. Owing to the generally negligeable additional weight and the small dimensions of the package containing some amount of superabsorbing powder the package according to the invention does not present any handling or transport problems and has a favourable appearance.
  • the package according to the invention can in principle also be used on current packaging machines.
  • the use of the package according to the invention generally does not require the purchase of new packaging machines, although in some cases the machines to be used may have to be slightly adapted.
  • the high liquid absorption capacity makes the package according to the invention very suitable even for containing products that exude relatively large amounts of liquid.
  • the liquid absorption capacity mentioned and envisaged in the description and the claim is determined by means of the device illustrated in Figure 1, which corresponds in essence to the commercially available ENSLIN apparatus.
  • the ENSLIN apparatus consists of a plate 1 of fritted glass which serves as a filter that commnunicates with a horizontally positioned, graduated microburet 2. It is essential that the position of the microburet 2 should be so chosen that the microburet and the upper side of the glass plate 1 are in one and the same horizontal plane.
  • the exchangeable filter unit 3 is connected up with the glass tube 4 for feeding the test liquid to the filter 1.
  • the sample 5 of superabsorbing material On the horizontal upper surface of the filter 1 there is to be placed the sample 5 of superabsorbing material whose liquid absorption capacity is to be measured by means of a test liquid.
  • a piston-16' serves to apply an external pressure of 3000 N/m to the superabsorbing powder 5.
  • the tube 4 At its end away from the filter 1 the tube 4 is connected to a three-way cock 6.
  • the three-way cock 6 On its other side the three-way cock 6 is connected to a funnel 7 for supplying the required, sufficiently large amount of test liquid.
  • the threeway cock 6 is through a piece of tube 8 connected to the two-way cock 9, which is connected to the microburet 2.
  • the porous glass filter 1 is of the G-3 type having a porosity of 16-40 microns, the upper side of the filter having a surface area of 12,25 cm 2 .
  • the microburet 2 has an inner diameter of 3,5 mm.
  • FIG. 2 shows an embodiment of the package according to the invention. It represents a watertight plastic carrier bag 10 containing about 3 kg of fresh mussels 11. At the bottom of the bag there is provided a separate compartment 12 filled with about 45 grammes of superabsorbing powder of the type commercially available under the trade name AKUCELL-S and consisting essentially of powder of cross-linked carboxymethyl cellulose. - The compartment is partitioned off from the contents of the bag by means of a liquid-permeable wall. The large amount of water usually exuded by the mussels will collect at the bottom of the bag 10 and will practically immediately be taken up by the superabsorbing material in the compartment 12. An amount of 3 kg of mussels may produce as much as about 0,5-0,8 litres of water in a relatively short time.
  • the total liquid absorption capacity can be determined with the aid of the apparatus given in Figure 1.
  • the test liquid taken up by the superabsorbing AKUCELL-S powder can be measured in millilitres per gramme after 15, 30, 45, 60, 90 .... 600, 900 seconds from the start of the measuring procedure and at a pressure of 3000 N/m 2 . Of every five successive measurements the results are averaged. The measuring results will lie within a 10% spread.
  • the AKUCELL-S to be used for the mussel package of Figure 2 will have a total liquid absorption capacity of about 20 ml/gramme.
  • FIG 3 shows a somewhat varied embodiment of a package according to the invention.
  • a closed and heat-sealed plastic bag 13 contains a product 14 which while in said bag 13 exudes a large amount of liquid.
  • a sachet 15 filled with superabsorbing powder of the AKUCELL-S type.
  • the walls of the sachet 15 are of a liquid-permeable material. The liquid to be exuded by the product 14 is completely and rapidly absorbed by the superabsorbing powder in the sachet 15.
  • the superabsorbing material may be provided with a moisture spreading agent serving to prevent the superabsorbing material from being blocked.
  • Belgian Patent Specification 809 023 describes a method of vacuum-packaging meat in the presence of a sachet or envelope containing moisture absorbing material in the form of silica gel, chalk or some claylike material.
  • the wall of the sachet or envelope is of a material permeable to liquid.
  • the envelope may also contain other substances that serve a different purpose, such as a preserving agent for meat.
  • some benefit will probably be derived from this known packaging form, it has the disadvantage that the moisture absorbing materials proposed for it, viz. silica gel, chalk or a claylike material are capable of absorbing only a relatively small amount of moisture.
  • BE 809 023 describes an embodiment where the envelope containing the moisture absorbing powder has relatively large dimensions, viz. 15 x 20 cm. As for various reasons, for instance of transport, weight and appearance, the dimensions almost invariably play an important role in the packaged endproduct, said known packaging form will not be acceptable for various uses. More particularly, the package according to BE 809 023 will not be suitable for products which while in the packaged state, will exude relatively large amounts of liquid.
  • Another disadvantage to the known package is that the above-mentioned absorbing materials contained therein, viz. silica gel, chalk and a claylike product are actually not suitable in the first place for absorbing water vapour and are only to a limited extent capable of absorbing liquid, such as sea water, or fresh water, lymph, blood or electrolyte solutions.
  • US 3 026 209 describes a fresh meat package which comprises some kind of tray, on the bottom of which there is placed a fairly thick layer of absorptive material which is covered with a perforated supporting plate on which the meat is placed.
  • the tray with the meat is entirely enclosed in a transparent wrapping film.
  • a bacteriostatic agent to retard or prevent the undesirable growth of microorganisms.
  • a disadvantage to this known package is that the absorptive materials proposed for it, such as paper, sponge, silica gel and the like, have only a relatively limited capacity of absorbing liquid. For absorbing an even fairly small amount of liquid use need be made then of a rather thick and large layer of absorptive material.
  • Swedish Patent Specification 7804793-3 describes a package for foodstuffs in which on the ridged bottom of a box there is placed a plate of absorptive material supporting a perforated plate.
  • the absorptive material is of paper or the like, which has only a relatively low absorptive capacity with all the resulting afore-mentioned disadvantages to it.
  • US Patent Specification 4 124 116 describes a moisture absorbing pack consisting of an upper filter layer and a lower dissolving layer between which there is provided a liquid absorbent granular material.
  • the absorbent material is of the superabsorbent type described in US Patent Specification 3 661 815.
  • US 4 124 116 it is proposed to use the moisture absorbing pack in optical lens cases, burial caskets, storage rooms, railroad cars and other types of enclosures.
  • the patent specification does not mention the use of a moisture absorbing pack in a package for foodstuffs.
EP82200644A 1981-06-01 1982-05-26 Verpackung für Lebensmittel, z.B. Schaltiere, die in der Verpackung Wasser abgeben, und Verpackungsverfahren Withdrawn EP0068530A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL8102651 1981-06-01
NL8102651 1981-07-01
NL8104023 1981-08-29
NL8104023 1981-08-29

Publications (1)

Publication Number Publication Date
EP0068530A1 true EP0068530A1 (de) 1983-01-05

Family

ID=26645700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200644A Withdrawn EP0068530A1 (de) 1981-06-01 1982-05-26 Verpackung für Lebensmittel, z.B. Schaltiere, die in der Verpackung Wasser abgeben, und Verpackungsverfahren

Country Status (1)

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EP (1) EP0068530A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010311A1 (fr) * 1988-04-19 1989-11-02 Süd-Chemie AG Sac en materiau putrescible et enveloppe interne
US4929480A (en) * 1987-07-20 1990-05-29 Kimberly-Clark Corporation Absorbent structure for absorbing food product liquids
AU614063B2 (en) * 1986-08-18 1991-08-22 Sorba - Freeze Ltd Storage process
NL9401832A (nl) * 1994-11-03 1996-06-03 Krijn Verwijs B V Lekvrije verpakking voor natte, althans vochtige, verswaar alsmede een verpakking voor mosselen en andere schelpdieren.
ES2324581A1 (es) * 2007-06-18 2009-08-10 Antonio Ochoa Marin Bolsa isotermica para alimentos.
EP2113465A1 (de) * 2008-04-29 2009-11-04 Seinec, S.A. Verpackung für Nahrungsprodukte
DE102017007581A1 (de) 2017-08-11 2019-02-14 Die Frischemanufaktur GmbH Behältervorrichtung zur Aufnahme von zum menschlichen Verzehr bestimmten Produkten

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674509A (en) * 1949-04-15 1954-04-06 Fulton Bag & Cotton Mills Means for protecting food commodities
US3661815A (en) * 1970-05-18 1972-05-09 Grain Processing Corp Water-absorbing alkali metal carboxylate salts of starch-polyacrylonitrile graft copolymers
NL7604730A (nl) * 1975-05-07 1976-11-09 Hoechst Ag Werkwijze voor het bereiden van wateropnemende celluloseethers.
US4124116A (en) * 1977-02-15 1978-11-07 Mccabe Jr Edward G Liquid absorbing sectional pack
GB2003836A (en) * 1977-09-10 1979-03-21 Marx R Tray for fresh meat or the like
US4224366A (en) * 1978-10-19 1980-09-23 Mccabe Jr Edward G Moisture absorption sectional pack
US4275811A (en) * 1979-08-23 1981-06-30 Cellu Products Company Receptacle for containing and displaying food products

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674509A (en) * 1949-04-15 1954-04-06 Fulton Bag & Cotton Mills Means for protecting food commodities
US3661815A (en) * 1970-05-18 1972-05-09 Grain Processing Corp Water-absorbing alkali metal carboxylate salts of starch-polyacrylonitrile graft copolymers
NL7604730A (nl) * 1975-05-07 1976-11-09 Hoechst Ag Werkwijze voor het bereiden van wateropnemende celluloseethers.
US4124116A (en) * 1977-02-15 1978-11-07 Mccabe Jr Edward G Liquid absorbing sectional pack
GB2003836A (en) * 1977-09-10 1979-03-21 Marx R Tray for fresh meat or the like
US4224366A (en) * 1978-10-19 1980-09-23 Mccabe Jr Edward G Moisture absorption sectional pack
US4275811A (en) * 1979-08-23 1981-06-30 Cellu Products Company Receptacle for containing and displaying food products

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU614063B2 (en) * 1986-08-18 1991-08-22 Sorba - Freeze Ltd Storage process
US4929480A (en) * 1987-07-20 1990-05-29 Kimberly-Clark Corporation Absorbent structure for absorbing food product liquids
WO1989010311A1 (fr) * 1988-04-19 1989-11-02 Süd-Chemie AG Sac en materiau putrescible et enveloppe interne
NL9401832A (nl) * 1994-11-03 1996-06-03 Krijn Verwijs B V Lekvrije verpakking voor natte, althans vochtige, verswaar alsmede een verpakking voor mosselen en andere schelpdieren.
ES2324581A1 (es) * 2007-06-18 2009-08-10 Antonio Ochoa Marin Bolsa isotermica para alimentos.
EP2113465A1 (de) * 2008-04-29 2009-11-04 Seinec, S.A. Verpackung für Nahrungsprodukte
DE102017007581A1 (de) 2017-08-11 2019-02-14 Die Frischemanufaktur GmbH Behältervorrichtung zur Aufnahme von zum menschlichen Verzehr bestimmten Produkten

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Inventor name: DINGEMANSE, JACOBUS

Inventor name: PRINS, JACOBUS

Inventor name: DE GOUW, ANTONIUS MARIA