WO2012040810A1 - Poche de prélèvement stérile biodégradable - Google Patents

Poche de prélèvement stérile biodégradable Download PDF

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Publication number
WO2012040810A1
WO2012040810A1 PCT/CA2010/001535 CA2010001535W WO2012040810A1 WO 2012040810 A1 WO2012040810 A1 WO 2012040810A1 CA 2010001535 W CA2010001535 W CA 2010001535W WO 2012040810 A1 WO2012040810 A1 WO 2012040810A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
biodegradable
sampling bag
flexible enclosure
plastic material
Prior art date
Application number
PCT/CA2010/001535
Other languages
English (en)
Inventor
May L. Scally
Shoreh Parandoosh
Danielle Lafond
Original Assignee
Labplas Inc.
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 Labplas Inc. filed Critical Labplas Inc.
Priority to PCT/CA2010/001535 priority Critical patent/WO2012040810A1/fr
Publication of WO2012040810A1 publication Critical patent/WO2012040810A1/fr

Links

Classifications

    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/505—Containers for the purpose of retaining a material to be analysed, e.g. test tubes flexible containers not provided for above
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Definitions

  • the present invention relates to bags and, more particularly, to sterile sampling bags for use in handling sample materials and the like (such as clinical samples), for instance in laboratories, in hospitals, in the food industry, etc.
  • Sterile sampling bags are used to collect, contain and carry a variety of sample materials that are pertinent to the agro-food, pharmaceutical, medical and environmental industries. These industries are all subject to various regulatory bodies, such as the FDA in the United States of America, Health Canada, HCAPP, etc. These regulators ensure that all products intended for consumption or interaction with the general public (either directly, such as food products, or indirectly, such as chemical fertilizers), meet scientific and measured standards that confirm their safety.
  • ⁇ does not leach any altering chemicals, such as cadmium, mercury, lead, etc., into the substance it is carrying;
  • samples of the food matter will be collected using sanitary methods and by inserting the substance in a sterile sampling bag. This occurs at many stages of the process, from the raw material phase, throughout the process and again with the final product. Furthermore, work surfaces, production and handling machinery and packaging materials are also sampled for testing Essentially, these components are all being tested to ensure that no harmful pathogens (such as E.coli, Listeria, Salmonella) or chemicals are present. Typically, various nutritive solutions are added to the sample substance and it is then transported to a laboratory for incubation and subsequent microbial analysis. The sampled material can be retained in a sampling bag for a wide variety of time periods. Usually, this consists of a few days, however, in some cases the sample can be retained for months, such as in a freezer environment.
  • sampling bags are typically made of plastics material and thus constitute a significant concern, when discarded, for the environment.
  • a biodegradable sampling bag for containing samples or the like, comprising a flexible enclosure defining a chamber adapted to contain therein the sample, said flexible enclosure being made of a plastic material, said plastic material containing an additive that renders said flexible enclosure biodegradable when exposed for a sufficient period of time to microbial action.
  • a method of making a biodegradable sampling bag comprising the steps of: a) producing a flexible enclosure from a plastic material containing an additive that renders said flexible enclosure biodegradable when exposed for a sufficient period of time to microbial action; and b) making a bag from said flexible enclosure, said bag defining a chamber adapted to contain therein a sample.
  • a plastic material containing an additive for making a biodegradable sampling bag wherein the plastic material containing said additive is adapted to enable microorganisms to metabolize the molecular structure of said sampling bag and cause said sampling bag to biodegrade, but being adapted, when exposed to microbial action, to sustain biodegradation for a given period of time.
  • the sampling bag of the present invention is produced with virgin Low-Density Polyethylene (LDPE) tubing which includes a specially formulated technology that incorporates nutrients and other compounds which alter the polymer chain to allow microbial action to colonize in and around the plastic. Microbes can then form a biofilm on the surface of the plastic and secrete acids which break down the entire polymer chain, converting the material into inert humus (biomass), C02, methane and water
  • the present sampling bag has a similar five year shelf life as conventional bags.
  • the biodegradation of the plastic is not triggered by heat, light, or moisture.
  • the sampling bag was submitted to 20 weeks of intense exposure to laboratory conditions (inoculation with various fungi, moisture, bacteria) and remained physically and chemically intact.
  • the sampling bag is sterile and is also R-Nase, D-Nase and pyrogen free.
  • the additive technology does not activate until the sampling bag is disposed of in a compost or sewage environment. Biodegradation under these conditions occurs over a period of, for instance, nine months to five years, depending on the concentration of microorganisms in the disposal environment.
  • Plastic materials and polymers are rendered biodegradable through the addition of substances that impact their molecular structures.
  • the goal is to sufficiently weaken or interrupt their polymer chains in order to allow environmental factors to interact with them for eventual degradation. Unadulterated polymer chains do not otherwise lose their molecular structure, and therefore are believed to remain intact within our ecological systems (landfills, sewage, general environment) for indefinite periods.
  • Unadulterated polymer chains do not otherwise lose their molecular structure, and therefore are believed to remain intact within our ecological systems (landfills, sewage, general environment) for indefinite periods.
  • the very concept of attempting to produce/develop a biodegradable sampling bag is counterintuitive to the requirements of the scientific community and stability that the bag must possess (see list of aforementioned specifications).
  • sampling bags Beyond the characteristics required of a sampling bag, during the course of its useful life, the bag will be subjected to a wide variety of materials, liquids and ambient conditions. These sampling bags are used by the scientific community, a group that is extremely knowledgeable and, understandably, not prone to modifications of proven tools and methodology. Analytical results, scientific validations and public security are reliant on the integrity of the entire testing process, including the sterile sampling container
  • ⁇ plastics are produced through melting of granule mixtures and consequent extrusion. Any biodegradable plastics produced with this type of heat-activated additive begin to degrade as soon as they are produced. The resulting material is indeed biodegradable; however, it is unstable and has a very short shelf life; and
  • Applicant has identified a biodegradable additive, which enables microorganisms in the environment to metabolize the molecular structure of plastic products.
  • the plastic degrades through the action of aerobic and anaerobic bacteria, and is not rendered unstable by light or heat.
  • the plastic in this case Linear Low-Density Polyethylene (LLDPE) remains stable, pliable and sufficiently transparent for the sampling bag application.
  • LLDPE Linear Low-Density Polyethylene
  • this additive also bears a potential challenge and is very counterintuitive to being viable for the microbiological analyses industry, in that sampling bags are used to enhance and encourage the growth of bacteria and other microorganisms, in order to detect their presence; and if the plastic material of the bag begins to degrade when in contact with such active bacteria, how can a sampling bag provided with the aforementioned biodegradable additive be considered as even remotely viable for this application?
  • a biodegrading additive is the more promising of these types of additives on the market; however, two inherent questions had to be answered in order for the product technology to be applicable for a sampling bag application:
  • Applicant obtained biodegradable LLDPE tubing produced with the additive.
  • ⁇ print ink adheres very well to the surface and is retained thereon for a sufficient period
  • the resulting sterile bag is still sufficiently transparent and has the appropriate and, to the naked eye, has the required physical appearance.
  • the biodegradable LLDPE film was subjected to the same physical, chemical and biological testing, in order to obtain its baseline physical measurements
  • ⁇ is R-Nase, D-Nase and pyrogen free, per test results from the outside laboratory, Mobio;
  • ⁇ has an MVTR (Moisture Vapor Transmission Rate) value of
  • ⁇ has an OTR (Oxygen Transmission Rate) value of 381 cc/10Qin 2 /day which is comparable to Applicant's standard material which has OTR results of 480 cc/100in 2 /day.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention concerne une poche de prélèvement biodégradable destinée à contenir des échantillons ou similaires, comprenant une enveloppe flexible définissant une chambre conçue pour contenir l'échantillon à l'intérieur, l'enveloppe flexible étant faite d'une matière plastique qui contient un additif qui rend l'enveloppe flexible biodégradable lorsqu'elle est exposée pendant une période de temps suffisante à une action microbienne. L'additif est conçu pour permettre aux microorganismes de métaboliser la structure moléculaire de ladite enveloppe flexible. L'additif est efficace dans la modification de la chaîne polymère de la matière plastique pour permettre une action microbienne d'un environnement approprié pour coloniser l'intérieur et le voisinage de la matière plastique, les microbes pouvant ensuite former un biofilm sur une surface de l'enveloppe flexible et secréter des acides qui rompent la chaîne polymère entière. L'enveloppe flexible, lorsqu'elle est exposée à une action microbienne, est conçue pour une biodégradation pendant une période de temps donnée, typiquement d'au moins trois mois.
PCT/CA2010/001535 2010-09-28 2010-09-28 Poche de prélèvement stérile biodégradable WO2012040810A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CA2010/001535 WO2012040810A1 (fr) 2010-09-28 2010-09-28 Poche de prélèvement stérile biodégradable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2010/001535 WO2012040810A1 (fr) 2010-09-28 2010-09-28 Poche de prélèvement stérile biodégradable

Publications (1)

Publication Number Publication Date
WO2012040810A1 true WO2012040810A1 (fr) 2012-04-05

Family

ID=45891739

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2010/001535 WO2012040810A1 (fr) 2010-09-28 2010-09-28 Poche de prélèvement stérile biodégradable

Country Status (1)

Country Link
WO (1) WO2012040810A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9925647B2 (en) 2011-11-10 2018-03-27 Labplas Inc. Device for holding a sampling sponge
USD858246S1 (en) 2011-08-31 2019-09-03 Labplas Inc. Handle for holding a sampling sponge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341410A (en) * 1980-05-08 1982-07-27 Summach Harley R W Supporting frame for detachably holding a bag type receptacle
US4949528A (en) * 1989-01-23 1990-08-21 Palik Robert A Method and means for reclamation and recycling
US5163278A (en) * 1991-08-21 1992-11-17 Martenhoff James E Lawn bagger
US5462201A (en) * 1994-10-11 1995-10-31 Wilkins; Samuel L. Automatic liquid dispensing device
US5584519A (en) * 1995-05-30 1996-12-17 Myles; J. Scott Disposable collection device for animal litter
US7374215B2 (en) * 2005-01-20 2008-05-20 Scoopeeze Brands, Llc “Scoopeeze” portable canine waste pick-up device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341410A (en) * 1980-05-08 1982-07-27 Summach Harley R W Supporting frame for detachably holding a bag type receptacle
US4949528A (en) * 1989-01-23 1990-08-21 Palik Robert A Method and means for reclamation and recycling
US5163278A (en) * 1991-08-21 1992-11-17 Martenhoff James E Lawn bagger
US5462201A (en) * 1994-10-11 1995-10-31 Wilkins; Samuel L. Automatic liquid dispensing device
US5584519A (en) * 1995-05-30 1996-12-17 Myles; J. Scott Disposable collection device for animal litter
US7374215B2 (en) * 2005-01-20 2008-05-20 Scoopeeze Brands, Llc “Scoopeeze” portable canine waste pick-up device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Additive Masterbatches make Polyolefins Degrade", PLASTICS TECHNOLOY, October 2002 (2002-10-01), Retrieved from the Internet <URL:http://NN-NN-NN-.ptoiiliiie.coiiVarticles/additive-masterbatches-make-pol\-olefiiis-degrade.> [retrieved on 20110315] *
"Certificate of Biodegradability of Plastic Products", 15 March 2011 (2011-03-15), Retrieved from the Internet <URL:http://NN-NN-NN-.biostar-bb.eu/bio/++-BiostarBiodegradable++/Biodegradatioii%20CertAirsoft-Supply%200811l2.pdf.> [retrieved on 20081112] *
"Plastics Plus Inc. Biodegradable Solution", March 2007 (2007-03-01), Retrieved from the Internet <URL:http://plasplus.com/pdfs/PPI_Green.pdf.> [retrieved on 20110315] *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD858246S1 (en) 2011-08-31 2019-09-03 Labplas Inc. Handle for holding a sampling sponge
US9925647B2 (en) 2011-11-10 2018-03-27 Labplas Inc. Device for holding a sampling sponge

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