Purity of recycled fibre-based materials

Thea Sipiläinen-Malm (Corresponding Author), Kyösti Latva-Kala, Leena Tikkanen, Maija-Liisa Suihko, Eija Skyttä

    Research output: Contribution to journalArticleScientificpeer-review

    31 Citations (Scopus)

    Abstract

    In order to study the purity of recycled fibre‐based materials, products containing recycled fibre as well as recycled pulp were examined with regard to their chemical impurities, toxicity and microbiological quality. The study was carried out to clarify both qualitatively and quantitatively the variations in microbiological quality. The levels of several classes of chemical substances were analysed and semi‐volatile and volatile substances identified. The toxicity and mutagenicity of virgin fibre and recycled fibre materials were screened using the Photobacter toxicity test and the Ames Salmonella mutagenicity test. Preliminary chemical characterization of the mutagens was carried out. Identification of the compounds found in the mutagenic fractions was performed by gas chromatography/mass spectrometry (GC/MS). The concentration of various substances analysed was found to be low, although the variety of substances present appeared to be very broad. Preliminary chemical characterization revealed that some samples contained compounds known to have mutagenic or other toxic activity. Also, the recycled fibre pulps contained large amounts of various microbes, the microbial load consisting mainly of aerobic spore‐forming bacteria. The paper‐making process was found to clearly have reduced the total microbial counts.

    Original languageEnglish
    Pages (from-to)695 - 703
    Number of pages9
    JournalFood Additives and Contaminants
    Volume14
    Issue number6 - 7
    DOIs
    Publication statusPublished - 1997
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Mutagenicity Tests
    Toxicity Tests
    Aerobic Bacteria
    mutagenicity
    Poisons
    Mutagens
    microbiological quality
    Salmonella
    purity
    Gas Chromatography-Mass Spectrometry
    recycled materials
    Photobacterium
    pulp fiber
    toxicity
    Toxicity
    spore-forming bacteria
    papermaking
    microbial load
    Fibers
    toxicity testing

    Cite this

    Sipiläinen-Malm, T., Latva-Kala, K., Tikkanen, L., Suihko, M-L., & Skyttä, E. (1997). Purity of recycled fibre-based materials. Food Additives and Contaminants, 14(6 - 7), 695 - 703. https://doi.org/10.1080/02652039709374581
    Sipiläinen-Malm, Thea ; Latva-Kala, Kyösti ; Tikkanen, Leena ; Suihko, Maija-Liisa ; Skyttä, Eija. / Purity of recycled fibre-based materials. In: Food Additives and Contaminants. 1997 ; Vol. 14, No. 6 - 7. pp. 695 - 703.
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    abstract = "In order to study the purity of recycled fibre‐based materials, products containing recycled fibre as well as recycled pulp were examined with regard to their chemical impurities, toxicity and microbiological quality. The study was carried out to clarify both qualitatively and quantitatively the variations in microbiological quality. The levels of several classes of chemical substances were analysed and semi‐volatile and volatile substances identified. The toxicity and mutagenicity of virgin fibre and recycled fibre materials were screened using the Photobacter toxicity test and the Ames Salmonella mutagenicity test. Preliminary chemical characterization of the mutagens was carried out. Identification of the compounds found in the mutagenic fractions was performed by gas chromatography/mass spectrometry (GC/MS). The concentration of various substances analysed was found to be low, although the variety of substances present appeared to be very broad. Preliminary chemical characterization revealed that some samples contained compounds known to have mutagenic or other toxic activity. Also, the recycled fibre pulps contained large amounts of various microbes, the microbial load consisting mainly of aerobic spore‐forming bacteria. The paper‐making process was found to clearly have reduced the total microbial counts.",
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    Sipiläinen-Malm, T, Latva-Kala, K, Tikkanen, L, Suihko, M-L & Skyttä, E 1997, 'Purity of recycled fibre-based materials', Food Additives and Contaminants, vol. 14, no. 6 - 7, pp. 695 - 703. https://doi.org/10.1080/02652039709374581

    Purity of recycled fibre-based materials. / Sipiläinen-Malm, Thea (Corresponding Author); Latva-Kala, Kyösti; Tikkanen, Leena; Suihko, Maija-Liisa; Skyttä, Eija.

    In: Food Additives and Contaminants, Vol. 14, No. 6 - 7, 1997, p. 695 - 703.

    Research output: Contribution to journalArticleScientificpeer-review

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    AU - Skyttä, Eija

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    AB - In order to study the purity of recycled fibre‐based materials, products containing recycled fibre as well as recycled pulp were examined with regard to their chemical impurities, toxicity and microbiological quality. The study was carried out to clarify both qualitatively and quantitatively the variations in microbiological quality. The levels of several classes of chemical substances were analysed and semi‐volatile and volatile substances identified. The toxicity and mutagenicity of virgin fibre and recycled fibre materials were screened using the Photobacter toxicity test and the Ames Salmonella mutagenicity test. Preliminary chemical characterization of the mutagens was carried out. Identification of the compounds found in the mutagenic fractions was performed by gas chromatography/mass spectrometry (GC/MS). The concentration of various substances analysed was found to be low, although the variety of substances present appeared to be very broad. Preliminary chemical characterization revealed that some samples contained compounds known to have mutagenic or other toxic activity. Also, the recycled fibre pulps contained large amounts of various microbes, the microbial load consisting mainly of aerobic spore‐forming bacteria. The paper‐making process was found to clearly have reduced the total microbial counts.

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    Sipiläinen-Malm T, Latva-Kala K, Tikkanen L, Suihko M-L, Skyttä E. Purity of recycled fibre-based materials. Food Additives and Contaminants. 1997;14(6 - 7):695 - 703. https://doi.org/10.1080/02652039709374581