Use of oxidized regenerated cellulose as bactericidal filler for food packaging applications

Sezer, Ümran Aydemir; Şanko, Vildan; Yuksekdag, Zehra Nur; Uzundağ, Dilek; Sezer, Serdar

doi:10.1007/s10570-016-1000-4

Cited by 17 publications

(4 citation statements)

References 35 publications

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“…In contrast with unmodified OBC, CS-coated samples (OBC/CS and OBC/COL/CS) exhibited significantly improved antibacterial properties, with percentage reduction in numbers of bacteria by OBC/COL/CS of 97.6%, 98.3%, and 97.4% for E. coli , S. aureus , and K. xylinus , respectively, and 99.9% for each of E. coli , S. aureus , and K. xylinus by OBC/CS (Figure A). For OBC, the antibacterial property derived from the acidic milieu of the carboxylic acid groups, which is bacteriostatic rather than bactericidal and lethal to most organisms . However, acid-fast bacteria or fungi can survive on OBC, which may result in an infection, and thus limits its clinical application. , The combination of OBC with CS, despite the consumption of −COOH groups by CS resulted in improved antibacterial properties, rather than a decline.…”

Section: Resultsmentioning

confidence: 99%

A Biodegradable Antibacterial Nanocomposite Based on Oxidized Bacterial Nanocellulose for Rapid Hemostasis and Wound Healing

Yuan

Chen

Hong

2019

ACS Appl. Mater. Interfaces

213

162

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The development of biodegradable and antibacterial hemostatic materials with high blood absorption to halt the internal hemorrhage of deep noncompressible wounds remains a challenge. In this study, a novel hemostatic nanocomposite (OBC/COL/CS) was fabricated by coupling oxidized bacterial cellulose (OBC) and chitosan (CS) with collagen (COL), that is, during the electrostatic self-assembly of OBC with CS (OBC/CS), COL was ingeniously attached as a functional component by the electrostatic attraction of cationic CS and anionic OBC. The introduction of collagen was anticipated to provide functional properties such as enhanced hemostasis and promotion of wound healing so as to achieve a new functional composite. This study is the first to evaluate the performance of OBC, OBC/CS, and the OBC/COL/CS composite for rapid internal hemostasis using a rat liver injury model. To our knowledge, this is also the first study to report that OBC has a faster biodegradability in vivo than commercial hemostatic oxidized regenerated plant cellulose (ORC). The OBC/COL/CS nanocomposite exhibited appropriate mechanical strength, broad spectrum antimicrobial properties, and excellent biodegradation in vivo. Furthermore, excellent hemostatic efficacy of the composite was confirmed in vivo. OBC/COL/CS exhibited greater procoagulant properties and blood-clotting capability, higher adhesion of erythrocytes and platelets with concomitant lower blood loss, in addition to ultrafast cessation of bleeding, superior to the commercial hemostatic ORC product Surgicel gauze. The results suggest that the OBC/COL/CS is a fast and efficient procoagulant agent with good antibacterial properties and great potential for use as an absorbable hemostat for control of internal bleeding.

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Section: Resultsmentioning

confidence: 99%

A Biodegradable Antibacterial Nanocomposite Based on Oxidized Bacterial Nanocellulose for Rapid Hemostasis and Wound Healing

Yuan

Chen

Hong

2019

ACS Appl. Mater. Interfaces

213

162

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“…Embalagem é o recipiente destinado a garantir a conservação e segurança durante o transporte e manuseio de produtos, sendo constituída de diversos materiais de acordo com a aplicação (Maia et al, 2007). A embalagem é um fator importante no processo de fabricação de alimentos, visto que é responsável por manter a qualidade durante sua armazenagem e distribuição, deve agir como uma barreira contra fatores externos e além disso, evitar ou retardar a deterioração do produto, aumentando o shelf-life (Sezer et al, 2016;Silva et al, 2008;Szczepańska et al, 2018).…”

Section: Introductionunclassified

“…Em seu estudo, Freire et al (2008) definem a embalagem como um negócio atrativo ao mundo industrializado, que faz parte da estratégia comercial das empresas, as quais buscam vantagem competitiva no mercado, principalmente nas exportações, sendo capaz de mudar a percepção e criar uma nova posição de marketing para o produto. Nesse cenário torna-se essencial o desenvolvimento de tecnologias para compor a nova geração de embalagens, como as embalagens inteligentes e ativas, capazes de monitorar as condições do ambiente em torno do produto ou ainda, incorporar as inovações em materiais que sejam biodegradáveis, de modo a garantir a qualidade do alimento e a preservação do meio ambiente (Deshwal et al, 2019;Lavoine et al, 2015;Sezer et al, 2016).…”

Section: Introductionunclassified

Viabilidade de aplicação de resina no revestimento de embalagem celulósica para alimentos pelo ensaio de migração

Albiero

Freiberger

Vanin

2021

jCEC

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A embalagem representa um papel essencial na conservação de alimentos, pode ser constituída de diversos materiais que flexibilizam sua aplicação e não deve possuir elementos migrantes que alterem a qualidade do produto. Diante disso, foi avaliado o potencial de migração e biodegradação de resina aplicada à embalagem celulósica destinada ao acondicionamento de bebidas refrigeradas, alternativa biodegradável à embalagem de poliestireno empregada usualmente. A migração foi mensurada por meio da quantificação gravimétrica do resíduo após contato com simulantes, água, ácido acético 3% (v/v), etanol 10% (v/v), e n-heptano. A biodegradação foi avaliada mediante verificação da perda de massa. A embalagem mostrou-se segura em contato com alimentos gordurosos em todos os ensaios, com produtos alcóolicos a 20°C até 48h, e 40°C por 2h e com água a 40°C até 24h e 65°C por 2h. O revestimento interferiu significativamente (p>0,05) na perda de massa, sendo que no 107º dia a embalagem revestida apresentou 38% de massa residual e a não-revestida 31%.

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“…For example, the graphene composite fibers prepared through chemical modification of regenerated cellulose were found to have improved thermal and mechanical properties when applied as thermal insulation materials (Tian et al, 2014). Furthermore, regenerated cellulose was recently modified to oxidized regenerated cellulose and used as bactericidal filler in food technology (Sezer et al, 2016). Also, regenerated cellulose has been widely utilized as an emulsion stabilizing and rheology agent for oil-in-water dispersion system (Hu et al, 2016).…”

Section: Regenerated Cellulose Its Derivatives and Their Applicationsmentioning

confidence: 99%

Application of modified lignocellulosic materials as green flocculants for brewery wastewater treatment

Mwesiga

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Coagulation–flocculation technique is usually used in wastewater treatment by employing conventional inorganic materials such as alum and ferric chloride. Due to environmental challenges associated with the use of inorganic flocculants, biopolymers are gaining ground as alternative water treatment materials. In the present study, native cellulose and hemicelluloses isolated from sugarcane bagasse were used in the removal of turbidity and biological oxygen demand (BOD) from industrial wastewater. Isolated native cellulose was modified to regenerated cellulose. Also, native cellulose, regenerated cellulose and hemicellulose were carboxymethylated using sodium monochloroacetic acid. Functional groups on the isolated, regenerated, and carboxymethylated biopolymers were examined using Fourier transform infrared spectroscopy (FT-IR) and Carbon (C), Hydrogen (H), Nitrogen (N), Sulfur (S) and Oxygen (O) (CHNS/O) analysis. The degree of substitution for regenerated and carboxymethylated cellulosic materials were measured using recommended standard methods. Carboxymethyl cellulose (CMC) with 1.3 degree of substitution reduced turbidity and BOD by 62.2 and 64%, respectively. Carboxymethyl regenerated-cellulose (CMC-II) at 1.1 degree of substitution reduced turbidity and BOD by 55.6 and 60%, respectively. Carboxymethyl hemicellulose (CMH) with 1.4 degree of substitution was capable of reducing turbidity and BOD by 45.7 and 47%, respectively. Carboxymethylcellulose and hemicellulose have rarely been used in the treatment of brewery wastewater. In the present study, these two novel materials showed a good prospect for application in water and wastewater treatment. URI

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Use of oxidized regenerated cellulose as bactericidal filler for food packaging applications

Cited by 17 publications

References 35 publications

A Biodegradable Antibacterial Nanocomposite Based on Oxidized Bacterial Nanocellulose for Rapid Hemostasis and Wound Healing

A Biodegradable Antibacterial Nanocomposite Based on Oxidized Bacterial Nanocellulose for Rapid Hemostasis and Wound Healing

Viabilidade de aplicação de resina no revestimento de embalagem celulósica para alimentos pelo ensaio de migração

Application of modified lignocellulosic materials as green flocculants for brewery wastewater treatment

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