Výsledky vyhledávání - "Marjaana Rättö"

Antibacterial and barrier properties of oriented polymer films with ZnO thin films applied with atomic layer deposition at low temperatures

Autor: Marjaana Rättö, Erkki Salo, Eija Kenttä, Anne Tanskanen, Jenni Sievänen, Matti Putkonen, Timo Sajavaara, Mika Vähä-Nissi, Marja Pitkänen, Maarit Karppinen, Ali Harlin, Asko Sneck

Publikováno v: Vähä-Nissi, M, Pitkänen, M, Salo, E, Kenttä, E, Tanskanen, A, Sajavaara, T, Putkonen, M, Sievänen, J, Sneck, A, Rättö, M, Karppinen, M & Harlin, A 2014, ' Antibacterial and barrier properties of oriented polymer films with ZnO thin films applied with atomic layer deposition at low temperatures ', Thin Solid Films, vol. 562, no. July, pp. 331-337 . https://doi.org/10.1016/j.tsf.2014.03.068

Concerns on food safety, and need for high quality and extended shelf-life of packaged foods have promoted the development of antibacterial barrier packaging materials. Few articles have been available dealing with the barrier or antimicrobial proper

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f1b43c02d0c8035ca31a46bbee1fc85
http://juuli.fi/Record/0030916914

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Norovirus transmission between hands, gloves, utensils, and fresh produce during simulated food handling

Autor: E. Aho, Leena Maunula, Jukka Ranta, Marjaana Rättö, Pirkko Tuominen, Antti Mikkelä, Maria Rönnqvist

Publikováno v: Rönnqvist, M, Aho, E, Mikkelä, A, Ranta, J, Tuominen, P, Rättö, M & Maunula, L 2014, ' Norovirus transmission between hands, gloves, utensils, and fresh produce during simulated food handling ', Applied and Environmental Microbiology, vol. 80, no. 17, pp. 5403-5410 . https://doi.org/10.1128/AEM.01162-14

Human noroviruses (HuNoVs), a leading cause of food-borne gastroenteritis worldwide, are easily transferred via ready-to-eat (RTE) foods, often prepared by infected food handlers. In this study, the transmission of HuNoV and murine norovirus (MuNoV)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d32437174b52b14a935f7264ca2f0e69
https://cris.vtt.fi/en/publications/a808056d-592e-4abc-8bb9-58d83c4f8eff

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Swabs as a Tool for Monitoring the Presence of Norovirus on Environmental Surfaces in the Food Industry

Autor: Maria Rönnqvist, Pirkko Tuominen, Marjaana Rättö, Leena Maunula, Satu Salo

Publikováno v: Rönnqvist, M, Rättö, M, Tuominen, P, Salo, S & Maunula, L 2013, ' Swabs as a tool for monitoring the presence of norovirus on environmental surfaces in the food industry ', Journal of Food Protection, vol. 76, no. 8, pp. 1421-1428 . https://doi.org/10.4315/0362-028X.JFP-12-371

Human norovirus (HuNoV), which causes gastroenteritis, can be transmitted to food and food contact surfaces via viruscontaminated hands. To investigate this transmission in food processing environments, we developed a swabbing protocol for environmen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::008335a6b3dd33acddd045682d0f164e
https://doi.org/10.4315/0362-028x.jfp-12-371

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Novel Coprinopsis cinerea Polyesterase that hydrolyzes cutin and Suberin

Autor: Johanna Buchert, Marjaana Rättö, Ann Westerholm-Parvinen, Ismo Mattila, Tiina Nakari-Setälä, Marzia Mohsina, Michael Bailey, Markku Saloheimo, Hanna Kontkanen, Nisse Kalkkinen

Publikováno v: Kontkanen, H, Westerholm-Parvinen, A, Saloheimo, M, Bailey, M, Rättö, M, Mattila, I, Mohsina, M, Kalkkinen, N, Nakari-Setälä, T & Buchert, J 2009, ' Novel Coprinopsis cinerea Polyesterase that hydrolyzes cutin and Suberin ', Applied and Environmental Microbiology, vol. 75, no. 7, pp. 2148-2157 . https://doi.org/10.1128/AEM.02103-08

Three cutinase gene-like genes from the basidiomycete Coprinopsis cinerea ( Coprinus cinereus ) found with a similarity search were cloned and expressed in Trichoderma reesei under the control of an inducible cbh1 promoter. The selected transformants

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1559b893dbf17617e706336e6f418c8a
https://cris.vtt.fi/en/publications/66f979b3-c2a9-4b7b-bcbc-0ec88ab42495

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Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan

Autor: Jari Vartiainen, Unto Tapper, Eero Hurme, Sabine Paulussen, Marjaana Rättö

Publikováno v: Vartiainen, J, Rättö, M, Tapper, U, Paulussen, S & Hurme, E 2005, ' Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan ', Polymer Bulletin, vol. 54, no. 4-5, pp. 343-352 . https://doi.org/10.1007/s00289-005-0382-5

Chitosan was immobilized onto plasma activated biaxially oriented polypropylene (BOPP) films aimed at producing antimicrobially active barrier film for food packaging applications. 1% chitosan dissolved into 0.1 M acetic acid was mixed with 0.1% glut

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::198e343374d6e4d5a4d054d96e77e3a4
https://doi.org/10.1007/s00289-005-0382-5

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Chitosan-coated paper: Effects of nisin and different acids on the antimicrobial activity

Autor: Heikki Kulonen, Marjaana Rättö, Eija Skyttä, Raija Ahvenainen, Rose Motion, Jari Vartiainen

Publikováno v: Journal of Applied Polymer Science. 94:986-993

Chitosan coatings prominently improved both the gloss and oxygen barrier properties of paper. The gloss value in the machine direction was increased as a function of added chitosan. An oxygen-permeability value of 1.1 cm3/m2 d was obtained when 6.9 g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bf7346b504ebf153eb583064da72de40
https://doi.org/10.1002/app.20701

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Enzymatically polymerized phenolic compounds as wood preservatives

Autor: Marjaana Rättö, Anne-Christine Ritschkoff, Liisa Viikari

Publikováno v: Rättö, M, Ritschkoff, A-C & Viikari, L 2004, ' Enzymatically polymerized phenolic compounds as wood preservatives ', Holzforschung, vol. 58, no. 4, pp. 440-445 . https://doi.org/10.1515/HF.2004.067

Phenolic compounds were studied as natural preservatives against wood decaying fungi. Vanillin and tannin decreased the growth of the test organisms Coniophora puteana and Coriolus versicolor and decreased the weight losses caused by these organisms

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f25ee32532f015776448187ab4616311
https://doi.org/10.1515/HF.2004.067

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Effects of bacterial treatments on wood extractives

Autor: Liisa Viikari, Matti Siika-aho, Jonas Konn, Anne Kallioinen, Marjaana Rättö, Anu Vaari

Publikováno v: Kallioinen, A, Vaari, A, Rättö, M, Konn, J, Siika-aho, M & Viikari, L 2003, ' Effects of bacterial treatments on wood extractives ', Journal of Biotechnology, vol. 103, no. 1, pp. 67-76 . https://doi.org/10.1016/S0168-1656(03)00051-8

Bacterial strains were isolated from spruce wood chips and their ability to reduce the content of wood extractives was studied. Strains were screened by cultivation on liquid media containing wood extractives as the major nutrient. Some bacterial spe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::920b0444e27d1735c9ab5b829ff7368f
https://doi.org/10.1016/S0168-1656(03)00051-8

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Strains degrading polysaccharides produced by bacteria from paper machines

Autor: Marjaana Rättö, Annikka Mustranta, Matti Siika-aho

Publikováno v: Rättö, M, Mustranta, A & Siika-aho, M 2001, ' Strains degrading polysaccharides produced by bacteria from paper machines ', Applied Microbiology and Biotechnology, vol. 57, no. 1-2, pp. 182-185 . https://doi.org/10.1007/s002530100729

Biofilm-degrading enzymes are potential agents for slime control in paper machines. In this work, extracellular polysaccharides were produced by bacteria isolated from paper machines and the isolated polysaccharides were used as substrates for the sc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::955de6dbc79d125bd0cfe20d7a38437c
https://doi.org/10.1007/s002530100729

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Strategies for improving ligninolytic enzyme activities in semi-solid-state bioreactors

Autor: Marjaana Rättö, Susana Rodríguez Couto, Alberto Domínguez, A. Sanromán

Publikováno v: Rodríguez Couto, S, Rättö, M, Domínguez, A & Sanromán, A 2001, ' Strategies for improving ligninolytic enzyme activities in semi-solid-state bioreactors ', Process Biochemistry, vol. 36, no. 10, pp. 995-999 . https://doi.org/10.1016/S0032-9592(01)00139-X

The production of ligninolytic enzymes by Phanerochaete chrysosporium BKM-F-1767 (ATCC 24725) was studied in laboratory-scale bioreactors, operating under semi-solid-state conditions. The bioreactors were filled with inert support (polypropylene spon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1945dade995989726b0b02dcfdfa8076
https://doi.org/10.1016/s0032-9592(01)00139-x

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