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
JournalFood Additives and Contaminants
Volume14
Issue number6 - 7
DOIs
Publication statusPublished - 1997
MoE publication typeA1 Journal article-refereed

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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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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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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