Victoria Kopp - Academia.edu (original) (raw)

Papers by Victoria Kopp

Research paper thumbnail of Óleo Essencial De Cravo Encapsulado Como Microbicida Natural

Research paper thumbnail of Clove Essential Oil – Free andE ncapsulatedf or Antimicrobial Leather

Journal of The Society of Leather Technologists and Chemists, 2020

Research paper thumbnail of Application of Cellulose in Leather

CRC Press eBooks, Aug 7, 2023

Research paper thumbnail of Recovery and Disposal of Tannery Waste Containing Toxic Metals

Toxic Metals Contamination

Research paper thumbnail of Nanomaterials to help eco-friendly leather processing

Environmental Science and Pollution Research, 2021

The leather industry converts the hide, a byproduct of slaughterhouses, into leather, a value-add... more The leather industry converts the hide, a byproduct of slaughterhouses, into leather, a value-added product. This old industry generates wastes, causing environmental pollution. However, nanomaterials can help to decrease this problem. These tiny particles (1–100 nm) can replace chemicals in various steps of leather processing. This paper aims at giving an overview of the fundamentals of classical leather process and how nanomaterials can be applied in each step to obtain a more sustainable manufacturing. After a comprehensive literature review of journal articles, six steps were identified for potential for application of nanomaterials: unhairing, tanning, retanning, dyeing, fatliquoring, and finishing. With nano-oxides, polymers, and metals, it is feasible to reduce the amount of chemical products and also improve the properties of leather. Thus, it is possible to reach a more eco-friendly and effective process with the use of nanomaterials to turn hide/skins into finished leather.

Research paper thumbnail of Simulação de uma planta de biodiesel utilizando óleo de soja

Modo de acesso: World Wide Web Inclui bibliografia 1. Engenharia 2. Educação.I. Título. CDD-620 O... more Modo de acesso: World Wide Web Inclui bibliografia 1. Engenharia 2. Educação.I. Título. CDD-620 O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos seus respectivos autores.

Research paper thumbnail of Microencapsulation of clove essential oil with gelatin and alginate

Content: Essential oils are of commercial interest primarily because of their potential antimicro... more Content: Essential oils are of commercial interest primarily because of their potential antimicrobial, antifungal and antioxidant properties and for being of natural origin, which generally represents lower risk to the environment and human health. Clove essential oil not only contains many kinds of biological active compositions but also has highly effective and comprehensive antibacterial functions. Remarkably, clove has strong antimicrobial activities against a wide range of pathogenic microorganisms. To prevent chemical changes the oil is microencapsulated. The aim of this study is to develop essential oil microcapsules with gelatin and alginate. Various solutions were prepared for the capsule wall material at different concentrations. The encapsulation efficiency (%) was accessed and the microcapsules were characterized by oil content (%), oil charge (%), morphology, functional groups present, thermogravimetric analysis and by Fourier transform - infrared spectral analysis. FT-...

Research paper thumbnail of Gestão De Custos Em Uma Micro Cervejaria Na Região Da Campanha - Um Estudo De Caso

Para enfrentar as dificuldades impostas por um mercado globalizado e cada vez mais competitivo, a... more Para enfrentar as dificuldades impostas por um mercado globalizado e cada vez mais competitivo, as empresas vem buscando aliar a excelencia na producao com eficacia financeira, devido a variedade de custos envolvidos em um processo produtivo. Nesse sentido, e relevante que as empresas controlem estes custos de uma maneira sistemica, possibilitando assim, a realizacao de suas atividades cotidianas bem como a quitacao de seus compromissos financeiros, de modo a facilitar o processo de tomada de decisao no ambiente organizacional. A Gestao dos Custos da Producao e uma importante ferramenta para diagnosticar situacoes de carater financeiro e gerencial em uma organizacao, sendo imprescindivel para a permanencia das empresas no mercado. As cervejas artesanais provenientes de micro cervejarias brasileiras tem atraido consumidores que buscam bebidas especiais e diferenciadas. O objetivo do trabalho e estudar a gestao de custos de uma micro cervejaria da Regiao da Campanha do RS. Para isso, ...

Research paper thumbnail of Óleo Essencial De Cravo Encapsulado Como Microbicida Natural

Research paper thumbnail of Clove Essential Oil – Free andE ncapsulatedf or Antimicrobial Leather

Journal of The Society of Leather Technologists and Chemists, 2020

Research paper thumbnail of Application of Cellulose in Leather

CRC Press eBooks, Aug 7, 2023

Research paper thumbnail of Recovery and Disposal of Tannery Waste Containing Toxic Metals

Toxic Metals Contamination

Research paper thumbnail of Nanomaterials to help eco-friendly leather processing

Environmental Science and Pollution Research, 2021

The leather industry converts the hide, a byproduct of slaughterhouses, into leather, a value-add... more The leather industry converts the hide, a byproduct of slaughterhouses, into leather, a value-added product. This old industry generates wastes, causing environmental pollution. However, nanomaterials can help to decrease this problem. These tiny particles (1–100 nm) can replace chemicals in various steps of leather processing. This paper aims at giving an overview of the fundamentals of classical leather process and how nanomaterials can be applied in each step to obtain a more sustainable manufacturing. After a comprehensive literature review of journal articles, six steps were identified for potential for application of nanomaterials: unhairing, tanning, retanning, dyeing, fatliquoring, and finishing. With nano-oxides, polymers, and metals, it is feasible to reduce the amount of chemical products and also improve the properties of leather. Thus, it is possible to reach a more eco-friendly and effective process with the use of nanomaterials to turn hide/skins into finished leather.

Research paper thumbnail of Simulação de uma planta de biodiesel utilizando óleo de soja

Modo de acesso: World Wide Web Inclui bibliografia 1. Engenharia 2. Educação.I. Título. CDD-620 O... more Modo de acesso: World Wide Web Inclui bibliografia 1. Engenharia 2. Educação.I. Título. CDD-620 O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos seus respectivos autores.

Research paper thumbnail of Microencapsulation of clove essential oil with gelatin and alginate

Content: Essential oils are of commercial interest primarily because of their potential antimicro... more Content: Essential oils are of commercial interest primarily because of their potential antimicrobial, antifungal and antioxidant properties and for being of natural origin, which generally represents lower risk to the environment and human health. Clove essential oil not only contains many kinds of biological active compositions but also has highly effective and comprehensive antibacterial functions. Remarkably, clove has strong antimicrobial activities against a wide range of pathogenic microorganisms. To prevent chemical changes the oil is microencapsulated. The aim of this study is to develop essential oil microcapsules with gelatin and alginate. Various solutions were prepared for the capsule wall material at different concentrations. The encapsulation efficiency (%) was accessed and the microcapsules were characterized by oil content (%), oil charge (%), morphology, functional groups present, thermogravimetric analysis and by Fourier transform - infrared spectral analysis. FT-...

Research paper thumbnail of Gestão De Custos Em Uma Micro Cervejaria Na Região Da Campanha - Um Estudo De Caso

Para enfrentar as dificuldades impostas por um mercado globalizado e cada vez mais competitivo, a... more Para enfrentar as dificuldades impostas por um mercado globalizado e cada vez mais competitivo, as empresas vem buscando aliar a excelencia na producao com eficacia financeira, devido a variedade de custos envolvidos em um processo produtivo. Nesse sentido, e relevante que as empresas controlem estes custos de uma maneira sistemica, possibilitando assim, a realizacao de suas atividades cotidianas bem como a quitacao de seus compromissos financeiros, de modo a facilitar o processo de tomada de decisao no ambiente organizacional. A Gestao dos Custos da Producao e uma importante ferramenta para diagnosticar situacoes de carater financeiro e gerencial em uma organizacao, sendo imprescindivel para a permanencia das empresas no mercado. As cervejas artesanais provenientes de micro cervejarias brasileiras tem atraido consumidores que buscam bebidas especiais e diferenciadas. O objetivo do trabalho e estudar a gestao de custos de uma micro cervejaria da Regiao da Campanha do RS. Para isso, ...