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Chemical Characterization and Enzymatic Control of Stickies in Kraft Paper Production
Paper recycling has increased in recent years. A principal consequence of this process is the problem of addressing some polymeric components known as stickies. A deep characterization of stickies sampled over one year in a recycled paper industry in México was performed. Based on their chemical str...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7023589/ https://www.ncbi.nlm.nih.gov/pubmed/31968601 http://dx.doi.org/10.3390/polym12010245 |
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author | Ballinas-Casarrubias, Lourdes González-Sánchez, Guillermo Eguiarte-Franco, Salvador Siqueiros-Cendón, Tania Flores-Gallardo, Sergio Duarte Villa, Eduardo de Dios Hernandez, Miguel Rocha-Gutiérrez, Beatriz Rascón-Cruz, Quintín |
author_facet | Ballinas-Casarrubias, Lourdes González-Sánchez, Guillermo Eguiarte-Franco, Salvador Siqueiros-Cendón, Tania Flores-Gallardo, Sergio Duarte Villa, Eduardo de Dios Hernandez, Miguel Rocha-Gutiérrez, Beatriz Rascón-Cruz, Quintín |
author_sort | Ballinas-Casarrubias, Lourdes |
collection | PubMed |
description | Paper recycling has increased in recent years. A principal consequence of this process is the problem of addressing some polymeric components known as stickies. A deep characterization of stickies sampled over one year in a recycled paper industry in México was performed. Based on their chemical structure, an enzymatic assay was performed using lipases. Compounds found in stickies by Fourier-transform infrared spectrometry were poly (butyl-acrylate), dioctyl phthalate, poly (vinyl-acetate), and poly (vinyl-acrylate). Pulp with 4% (w/w) consistency and pH = 6.2 was sampled directly from the mill once macrostickies were removed. Stickies were quantified by counting the tacky macrostructures in the liquid fraction of the pulp using a Neubauer chamber before the paper was made, and they were analyzed with rhodamine dye and a UV lamp. Of the two commercial enzymes evaluated, the best treatment condition used Lipase 30 G (Specialty Enzymes & Biotechnologies Co(®), Chino, CA, USA) at a concentration of 0.44 g/L, which decreased 35.59% of stickies. SebOil DG (Specialty Enzymes & Biotechnologies(®)) showed a stickies reduction of 21.5% when used at a concentration of 0.33 g/L. Stickies in kraft paper processes were actively controlled by the action of lipases, and future research should focus on how this enzyme recognizes its substrate and should apply synthetic biology to improve lipase specificity. |
format | Online Article Text |
id | pubmed-7023589 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70235892020-03-11 Chemical Characterization and Enzymatic Control of Stickies in Kraft Paper Production Ballinas-Casarrubias, Lourdes González-Sánchez, Guillermo Eguiarte-Franco, Salvador Siqueiros-Cendón, Tania Flores-Gallardo, Sergio Duarte Villa, Eduardo de Dios Hernandez, Miguel Rocha-Gutiérrez, Beatriz Rascón-Cruz, Quintín Polymers (Basel) Article Paper recycling has increased in recent years. A principal consequence of this process is the problem of addressing some polymeric components known as stickies. A deep characterization of stickies sampled over one year in a recycled paper industry in México was performed. Based on their chemical structure, an enzymatic assay was performed using lipases. Compounds found in stickies by Fourier-transform infrared spectrometry were poly (butyl-acrylate), dioctyl phthalate, poly (vinyl-acetate), and poly (vinyl-acrylate). Pulp with 4% (w/w) consistency and pH = 6.2 was sampled directly from the mill once macrostickies were removed. Stickies were quantified by counting the tacky macrostructures in the liquid fraction of the pulp using a Neubauer chamber before the paper was made, and they were analyzed with rhodamine dye and a UV lamp. Of the two commercial enzymes evaluated, the best treatment condition used Lipase 30 G (Specialty Enzymes & Biotechnologies Co(®), Chino, CA, USA) at a concentration of 0.44 g/L, which decreased 35.59% of stickies. SebOil DG (Specialty Enzymes & Biotechnologies(®)) showed a stickies reduction of 21.5% when used at a concentration of 0.33 g/L. Stickies in kraft paper processes were actively controlled by the action of lipases, and future research should focus on how this enzyme recognizes its substrate and should apply synthetic biology to improve lipase specificity. MDPI 2020-01-20 /pmc/articles/PMC7023589/ /pubmed/31968601 http://dx.doi.org/10.3390/polym12010245 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ballinas-Casarrubias, Lourdes González-Sánchez, Guillermo Eguiarte-Franco, Salvador Siqueiros-Cendón, Tania Flores-Gallardo, Sergio Duarte Villa, Eduardo de Dios Hernandez, Miguel Rocha-Gutiérrez, Beatriz Rascón-Cruz, Quintín Chemical Characterization and Enzymatic Control of Stickies in Kraft Paper Production |
title | Chemical Characterization and Enzymatic Control of Stickies in Kraft Paper Production |
title_full | Chemical Characterization and Enzymatic Control of Stickies in Kraft Paper Production |
title_fullStr | Chemical Characterization and Enzymatic Control of Stickies in Kraft Paper Production |
title_full_unstemmed | Chemical Characterization and Enzymatic Control of Stickies in Kraft Paper Production |
title_short | Chemical Characterization and Enzymatic Control of Stickies in Kraft Paper Production |
title_sort | chemical characterization and enzymatic control of stickies in kraft paper production |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7023589/ https://www.ncbi.nlm.nih.gov/pubmed/31968601 http://dx.doi.org/10.3390/polym12010245 |
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