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Polysaccharides, Volume 3, Issue 1

March 2022 - 17 articles

Cover Story: Cupriavidus metallidurans is a Gram-negative bacterium that can survive in heavy metal-rich environments and in the human body as a potential pathogen. How C. metallidurans can survive in such different environments is unknown, and one factor contributing to its adaptability could be the O-antigen portion of the lipopolysaccharide. This polysaccharide is neutral, made of a linear tetrasaccharide repeating unit that does not resemble any other structure reported for bacteria, and it includes the rare sugar bacillosamine acylated to N-4 with hydroxybutyric acid. Finally, this O-antigen can adopt three different conformations, all right-handed helices, with a two-, three-, or four-fold symmetry. View this paper.
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Articles (17)

  • Article
  • Open Access
20 Citations
6,148 Views
14 Pages

Cellulose is a natural, unbranched, and fibrous homopolymer that is a major component in several agroindustrial residues. The aim of this study was to extract cellulose from oat hulls and then to modify it using a green route to obtain esterified cel...

  • Article
  • Open Access
25 Citations
4,946 Views
15 Pages

Development and Investigation of Zein and Cellulose Acetate Polymer Blends Incorporated with Garlic Essential Oil and β-Cyclodextrin for Potential Food Packaging Application

  • Clara Suprani Marques,
  • Rafael Resende Assis Silva,
  • Tarsila Rodrigues Arruda,
  • Ana Luiza Valadares Ferreira,
  • Taíla Veloso de Oliveira,
  • Allan Robledo Fialho Moraes,
  • Marali Vilela Dias,
  • Maria Cristina Dantas Vanetti and
  • Nilda de Fátima Ferreira Soares

The obtainment of new materials with distinct properties by mixing two or more polymers is a potential strategy in sustainable packaging research. In the present work, a blend of cellulose acetate (CA) and zein (60:40 wt/wt CA:zein) was manufactured...

  • Review
  • Open Access
39 Citations
7,143 Views
13 Pages

Recent Advances of Microalgae Exopolysaccharides for Application as Bioflocculants

  • Juliana Botelho Moreira,
  • Suelen Goettems Kuntzler,
  • Priscilla Quenia Muniz Bezerra,
  • Ana Paula Aguiar Cassuriaga,
  • Munise Zaparoli,
  • Jacinta Lutécia Vitorino da Silva,
  • Jorge Alberto Vieira Costa and
  • Michele Greque de Morais

Microalgae are used in flocculation processes because biopolymers are released into the culture medium. Microalgal cell growth under specific conditions (temperature, pH, luminosity, nutrients, and salinity) provides the production and release of exo...

  • Article
  • Open Access
28 Citations
5,509 Views
14 Pages

Development and Characterization of Arrowroot Starch Films Incorporated with Grape Pomace Extract

  • Gislaine Ferreira Nogueira,
  • Isabela Helena Bratfischer Tagliari Soares,
  • Cyntia Trevisan Soares,
  • Farayde Matta Fakhouri and
  • Rafael Augustus de Oliveira

Grape processing residues are a good source of bioactive and nutritional compounds. The incorporation of grape pomace extract (GPE) in starch films can be a strategy for the elaboration of new food packaging products for applications such as edible f...

  • Feature Paper
  • Article
  • Open Access
13 Citations
4,241 Views
14 Pages

Chitosan and Collagen-Based Materials Enriched with Curcumin (Curcuma longa): Rheological and Morphological Characterization

  • Eduardo P. Milan,
  • Mirella Romanelli V. Bertolo,
  • Virginia C. A. Martins,
  • Stanislau Bogusz Junior and
  • Ana Maria G. Plepis

In this study, chitosan and collagen (Ch: Col)-based materials containing curcumin (Cur) as a bioactive compound were developed for wound-healing purposes. The effects of incorporating curcumin and increasing its concentration on both the rheological...

  • Review
  • Open Access
8 Citations
5,078 Views
17 Pages

The interest in the development of biobased adhesives has increased due to environmental concerns. Moreover, as the production of engineered wood products (EWPs) is expected to grow, the wood adhesives market needs to transit toward formaldehyde-free...

  • Article
  • Open Access
13 Citations
4,456 Views
17 Pages

Chemical Stabilization behind Cardamom Pickering Emulsion Using Nanocellulose

  • Alana Gabrieli Souza,
  • Rafaela Reis Ferreira,
  • Eder Ramin de Oliveira,
  • Maurício M. Kato,
  • Sushanta K. Mitra and
  • Derval dos Santos Rosa

Cardamom essential oil (EO) is a rare oil of high scientific and economic interest due to its biofunctionality. This work aims to stabilize the EO by Pickering emulsions with nanocellulose, in the form of nanocrystals (CNC) or nanofibers (CNF), and t...

  • Article
  • Open Access
1 Citations
4,515 Views
12 Pages

Structure and Conformation Study of the O-Antigen from the Lipopolysaccharide of Cupriavidus Metallidurans CH34

  • Anna Notaro,
  • Adele Vanacore,
  • Antonio Molinaro,
  • Immacolata Speciale and
  • Cristina De Castro

Cupriavidus metallidurans is a Gram-negative bacterium that has attracted the attention of the scientific community since its discovery back in 1976. It was initially studied as a model organism for bioremediation processes due to its ability to surv...

  • Article
  • Open Access
3 Citations
3,717 Views
10 Pages

In this paper, surfaces of thin films prepared from blends of collagen, hyaluronic acid, and chitosan and modified by neodymium laser radiation were researched. To evaluate the laser beam effect on the surface structure, scanning electron microscopy...

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Polysaccharides - ISSN 2673-4176