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Lopes WC, Brito FM, Neto FE, Araújo AR, Leite RC, Viana VGF, Silva-Filho EC, Silva DA. Development of a New Clay-Based Aerogel Composite from Ball Clay from Piauí, Brazil and Polysaccharides. Polymers (Basel) 2023; 15:polym15112412. [PMID: 37299211 DOI: 10.3390/polym15112412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/10/2023] [Accepted: 05/13/2023] [Indexed: 06/12/2023] Open
Abstract
The incorporation of polymeric components into aerogels based on clay produces a significant improvement in the physical and thermal properties of the aerogels. In this study, clay-based aerogels were produced from a ball clay by incorporation of angico gum and sodium alginate using a simple, ecologically acceptable mixing method and freeze-drying. The compression test showed a low density of spongy material. In addition, both the compressive strength and the Young's modulus of elasticity of the aerogels showed a progression associated to the decrease in pH. The microstructural characteristics of the aerogels were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The chemical structure was studied by infrared spectroscopy with Fourier transform (FTIR). The TGA curves from a non-oxidizing atmosphere indicated that the clay had a mass loss of 9% above 500 °C and that due to the presence of polysaccharides, the aerogels presented a decomposition of 20% at temperatures above 260 °C. The DSC curves of the aerogels demonstrated a displacement in higher temperatures. In conclusion, the results showed that aerogels of ball clay with the incorporation of polysaccharides, which are still minimally studied, have potential application as thermal insulation considering the mechanical and thermal results obtained.
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Affiliation(s)
- Wilton C Lopes
- Research Center on Biodiversity and Biotechnology, BIOTEC, Federal University of Delta of Parnaíba, UFDPar, São Sebastião Avenue, Parnaíba 64202-020, PI, Brazil
| | - Francisco M Brito
- Research Center on Biodiversity and Biotechnology, BIOTEC, Federal University of Delta of Parnaíba, UFDPar, São Sebastião Avenue, Parnaíba 64202-020, PI, Brazil
| | - Francisco E Neto
- Research Center on Biodiversity and Biotechnology, BIOTEC, Federal University of Delta of Parnaíba, UFDPar, São Sebastião Avenue, Parnaíba 64202-020, PI, Brazil
| | - Alyne R Araújo
- Research Center on Biodiversity and Biotechnology, BIOTEC, Federal University of Delta of Parnaíba, UFDPar, São Sebastião Avenue, Parnaíba 64202-020, PI, Brazil
| | - Rodolpho C Leite
- Postgraduate Program in Materials Engineering, Federal Institute of Piaui (IFPI), Campus Teresina Central, Teresina 64001-270, PI, Brazil
| | - Vicente G Freitas Viana
- Postgraduate Program in Materials Engineering, Federal Institute of Piaui (IFPI), Campus Teresina Central, Teresina 64001-270, PI, Brazil
| | - Edson C Silva-Filho
- LIMAV, Interdisciplinary Laboratory of Advanced Materials, Piauí Federal University, Teresina 64049-550, PI, Brazil
| | - Durcilene A Silva
- Research Center on Biodiversity and Biotechnology, BIOTEC, Federal University of Delta of Parnaíba, UFDPar, São Sebastião Avenue, Parnaíba 64202-020, PI, Brazil
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Modification of chicha gum: Antibacterial activity, ex vivo mucoadhesion, antioxidant activity and cellular viability. Int J Biol Macromol 2023; 228:594-603. [PMID: 36563812 DOI: 10.1016/j.ijbiomac.2022.12.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
The aim of the present work was to modify the exuded gum of Sterculia striata tree by an amination reaction. The viscosity and zero potential of the chicha gum varied as a function of pH. The modification was confirmed by X-ray diffraction (XRD), infrared spectroscopy (FTIR), size exclusion chromatography (SEC), zeta potential, thermogravimetric analysis (TG), and differential scanning calorimetry (DSC). Furthermore, the chemical modification changed the molar mass and surface charge of the chicha gum. In addition, the gums were used in tests for ex vivo mucoadhesion strength, antibacterial activity against the standard strain of Staphylococcus aureus (ATCC 25923), inhibitory activity of α-glucosidase, antioxidant capacity, and viability of Caco-2 cells. Through these tests, it was found that amination caused an increase in the mucoadhesive and inhibitory activity of chicha gum against the bacterium Staphylococcus aureus. In addition, the gums (pure and modified) showed antioxidant capacity and an inhibitory effect against the α-glucosidase enzyme and did not show cytotoxic potential.
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de Lima IS, Ferreira MOG, Barros EML, Rizzo MDS, Santos JDA, Ribeiro AB, Anteveli Osajima Furtini J, C. Silva-Filho E, Estevinho LM. Antibacterial and Healing Effect of Chicha Gum Hydrogel ( Sterculia striata) with Nerolidol. Int J Mol Sci 2023; 24:2210. [PMID: 36768534 PMCID: PMC9916798 DOI: 10.3390/ijms24032210] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
Chicha gum is a natural polymer obtained from the Sterculia striata plant. The hydroxyl groups of its structure have a chemical affinity to form hydrogels, which favors the association with biologically active molecules, such as nerolidol. This association improves the biological properties and allows the material to be used in drug delivery systems. Chicha gum hydrogels associated with nerolidol were produced at two concentrations: 0.01 and 0.02 g mL-1. Then, the hydrogels were characterized by thermogravimetry (TG), Fourier Transform Infrared spectroscopy (FTIR), and rheological analysis. The antibacterial activity was tested against Staphylococcus aureus and Escherichia coli. The cytotoxicity was evaluated against Artemia salina. Finally, an in vivo healing assay was carried out. The infrared characterization indicated that interactions were formed during the gel reticulation. This implies the presence of nerolidol in the regions at 3100-3550 cm-1. The rheological properties changed with an increasing concentration of nerolidol, which resulted in less viscous materials. An antibacterial 83.6% growth inhibition effect was observed using the hydrogel with 0.02 g mL-1 nerolidol. The in vivo healing assay showed the practical activity of the hydrogels in the wound treatment, as the materials promoted efficient re-epithelialization. Therefore, it was concluded that the chicha hydrogels have the potential to be used as wound-healing products.
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Affiliation(s)
- Idglan Sá de Lima
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina 64049-550, PI, Brazil
| | - Maria Onaira Gonçalves Ferreira
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina 64049-550, PI, Brazil
| | | | - Marcia dos Santos Rizzo
- Centro de Biotecnologia e Química Fina (CBQF)—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Jailson de Araújo Santos
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina 64049-550, PI, Brazil
| | - Alessandra Braga Ribeiro
- Centro de Biotecnologia e Química Fina (CBQF)—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Josy Anteveli Osajima Furtini
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina 64049-550, PI, Brazil
| | - Edson C. Silva-Filho
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina 64049-550, PI, Brazil
| | - Leticia M. Estevinho
- Mountain Research Center, CIMO, Polytechnic Institute of Bragança, Campus Santa Apolónia, 5300-253 Bragança, Portugal
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Wang Y, Xu Y, Liu Z. A review of plant antipathogenic constituents: Source, activity and mechanism. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 188:105225. [PMID: 36464345 DOI: 10.1016/j.pestbp.2022.105225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 07/25/2022] [Accepted: 09/05/2022] [Indexed: 06/17/2023]
Abstract
Green prevention and control of plant pathogens is a development direction of sustainable and low-carbon agriculture given the limitation of traditional chemicals. Plant-derived antipathogenic constituents (PAPCs) exhibit the advantages of being environmental benign and a broad spectrum of target pathogens over traditional chemicals. Here, we review the research advances on plant sources, chemical compositions, activities of antipathogenic constituents in the past 20 years. Reported PAPCs are classified into categories of phenols, flavonoids, terpenoids, alkaloids and antimicrobial peptides. Angiosperms, gymnosperms and some lower plants are the main plant source of detected PAPCs. The PAPCs act on pathogens through multiple pathways including destroying cell structures, blocking key composition synthesis and inhibiting cell metabolism. The development trends of PAPCs are finally prospected. This review serves as a comprehensive review on the study of plant antipathogenic constituents and a key reference for forecasting the source, characteristic and activity of PAPC.
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Affiliation(s)
- Yueyao Wang
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Yongdong Xu
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Zhidan Liu
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
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Ferreira MOG, Ribeiro AB, Rizzo MS, de Jesus Oliveira AC, Osajima JA, Estevinho LM, Silva-Filho EC. Potential Wound Healing Effect of Gel Based on Chicha Gum, Chitosan, and Mauritia flexuosa Oil. Biomedicines 2022; 10:biomedicines10040899. [PMID: 35453649 PMCID: PMC9025394 DOI: 10.3390/biomedicines10040899] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/02/2022] [Accepted: 04/12/2022] [Indexed: 12/20/2022] Open
Abstract
Wounds are considered a clinically critical issue, and effective treatment will decrease complications, prevent chronic wound formation, and allow rapid healing. The development of products based on naturally occurring materials is an efficient approach to wound healing. Natural polysaccharides can mimic the extracellular matrix and promote cell growth, thus making them attractive for wound healing. In this context, the aim of this work was to produce a gel based on chicha gum, chitosan, and Mauritia flexuosa oil (CGCHO) for wound treatment. TG and DTG analyzed the thermal behavior of the materials, and SEM investigated the surface roughness. The percentages of total phenolic compounds, flavonoids, and antioxidants were determined, presenting a value of 81.811 ± 7.257 µmol gallic acid/g Mauritia flexuosa oil, 57.915 ± 0.305 µmol quercetin/g Mauritia flexuosa oil, and 0.379 mg/mL, respectively. The anti-inflammatory was determined, presenting a value of 10.35 ± 1.46% chicha gum, 16.86 ± 1.00% Mauritia flexuosa oil, 10.17 ± 1.05% CGCHO, and 15.53 ± 0.65% chitosan, respectively. The materials were tested against Gram-negative (Klebsiella pneumoniae) and Gram-positive (Staphylococcus aureus) bacteria and a fungus (Candida albicans). The CGCHO formulation showed better antimicrobial activity against Gram-positive bacteria. In addition, an in vivo wound healing study was also performed. After 21 days of treatment, the epidermal re-epithelialization process was observed. CGCHO showed good thermal stability and roughness that can help in cell growth and promote the tissue healing process. In addition to the good results observed for the antimicrobial, antioxidant, anti-inflammatory activities and providing wound healing, they provided the necessary support for the healing process, thus representing a new approach to the wound healing process.
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Affiliation(s)
- Maria Onaira Gonçalves Ferreira
- Graduate Program in Materials Science, Campus Universitario Ministro Petrônio Portella, Federal University of Piaui, Teresina 64049-550, PI, Brazil; (M.O.G.F.); (M.S.R.); (A.C.d.J.O.); (J.A.O.)
| | - Alessandra Braga Ribeiro
- CBQF–Centre of Biotechnology and Fine Chemistry–Associate Laboratory, Faculty of Biotechnology, Catholic University of Portugal, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal;
| | - Marcia S. Rizzo
- Graduate Program in Materials Science, Campus Universitario Ministro Petrônio Portella, Federal University of Piaui, Teresina 64049-550, PI, Brazil; (M.O.G.F.); (M.S.R.); (A.C.d.J.O.); (J.A.O.)
| | - Antonia Carla de Jesus Oliveira
- Graduate Program in Materials Science, Campus Universitario Ministro Petrônio Portella, Federal University of Piaui, Teresina 64049-550, PI, Brazil; (M.O.G.F.); (M.S.R.); (A.C.d.J.O.); (J.A.O.)
| | - Josy Anteveli Osajima
- Graduate Program in Materials Science, Campus Universitario Ministro Petrônio Portella, Federal University of Piaui, Teresina 64049-550, PI, Brazil; (M.O.G.F.); (M.S.R.); (A.C.d.J.O.); (J.A.O.)
| | - Leticia M. Estevinho
- Mountain Research Center, CIMO, Polytechnic Institute of Bragança, Campus Santa Apolónia, 5300-253 Bragança, Portugal
- Correspondence: (L.M.E.); (E.C.S.-F.)
| | - Edson C. Silva-Filho
- Graduate Program in Materials Science, Campus Universitario Ministro Petrônio Portella, Federal University of Piaui, Teresina 64049-550, PI, Brazil; (M.O.G.F.); (M.S.R.); (A.C.d.J.O.); (J.A.O.)
- Correspondence: (L.M.E.); (E.C.S.-F.)
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Silva JSFD, Oliveira ACDJ, Soares MFDLR, Soares-Sobrinho JL. Recent advances of Sterculia gums uses in drug delivery systems. Int J Biol Macromol 2021; 193:481-490. [PMID: 34710475 DOI: 10.1016/j.ijbiomac.2021.10.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/19/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022]
Abstract
Trees of the genus Sterculia produce polysaccharide-rich exudates, such as karaya gum (Sterculia urens), chicha gum (Sterculia striata), and Sterculia foetida gum. These anionic biomaterials are biodegradable, with high viscosity, low toxicity, and gelling properties in aqueous media. According to these properties, they show promising applications as a polymer matrix for use in drug delivery systems. For this application, both the chemically modified and the unmodified polysaccharide are used. This review focuses on analyzing the state of the art of recent studies on the use of Sterculia gums in a variety of pharmaceutical forms, such as tablets, hydrogels, micro/nanoparticles, and mucoadhesive films. Sterculia gums-based delivery systems have potential to be explored for new drug delivery systems.
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Affiliation(s)
- Júlia Samara Ferreira da Silva
- Quality Control Core of Medicines and Correlates, Pharmaceutical Sciences Department, Federal University of Pernambuco, Recife, PE, Brazil
| | - Antônia Carla de Jesus Oliveira
- Quality Control Core of Medicines and Correlates, Pharmaceutical Sciences Department, Federal University of Pernambuco, Recife, PE, Brazil
| | - Mônica Felts de La Roca Soares
- Quality Control Core of Medicines and Correlates, Pharmaceutical Sciences Department, Federal University of Pernambuco, Recife, PE, Brazil
| | - José Lamartine Soares-Sobrinho
- Quality Control Core of Medicines and Correlates, Pharmaceutical Sciences Department, Federal University of Pernambuco, Recife, PE, Brazil.
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Silva SCCC, Braz EMA, Brito CARS, Alves MMM, Carvalho FAA, Barreto HM, Oliveira AL, Silva DA, Silva-Filho EC. Phthalic anhydride esterified chicha gum: characterization and antibacterial activity. Carbohydr Polym 2021; 251:117077. [PMID: 33142620 DOI: 10.1016/j.carbpol.2020.117077] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/01/2020] [Accepted: 09/07/2020] [Indexed: 01/10/2023]
Abstract
The objective of this research was to modify chicha gum with phthalic anhydride to obtain a new biologically active material. The chemical modification of the gum structure was proven through FTIR, elemental analysis, XRD, TG, and DSC. The derived materials demonstrated excellent inhibitory effect against P. aeruginosa and K. pneumoniae species (rating 100% inhibition) and could also inhibit Escherichia coli growth. The best antimicrobial activity observed for the derivatives suggests that chicha gum hydrophobization due to the addition of phthalic groups improved the interaction of these derivatives with bacterial cell wall components. On the other hand, the derivatives increased CC50 in macrophages but did not present acute toxicity or hemolytic activity, indicating that they are promising for use in prophylaxis or treatment of infections caused by Gram-negative bacteria.
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Affiliation(s)
- Solranny Carla Cavalcante Costa Silva
- Laboratório Interdisciplinar de Materiais Avançados - LIMAV, Universidade Federal do Piauí, Campus ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil; Universidade Estadual do Piauí, Campus Professor Ariston Dias Lima, São Raimundo Nonato, PI CEP: 64770-000, Brazil
| | - Elton Marks Araujo Braz
- Laboratório Interdisciplinar de Materiais Avançados - LIMAV, Universidade Federal do Piauí, Campus ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
| | - Carla Adriana Rodrigues Sousa Brito
- Laboratório de Pesquisa em Microbiologia, Universidade Federal do Piauí, Campus Universitário Ministro Petrônio Portella, Teresina, PI CEP 64049-550, Brazil
| | - Michel Muálem Moraes Alves
- Núcleo de Pesquisa em Plantas Medicinais - NPPM, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil; Departamento de Morfofisiologia Veterinária, Centro de Ciências Agrárias, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
| | - Fernando Aécio Amorim Carvalho
- Núcleo de Pesquisa em Plantas Medicinais - NPPM, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
| | - Humberto Medeiros Barreto
- Laboratório de Pesquisa em Microbiologia, Universidade Federal do Piauí, Campus Universitário Ministro Petrônio Portella, Teresina, PI CEP 64049-550, Brazil
| | - Ana Leite Oliveira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
| | - Durcilene Alves Silva
- Laboratório Interdisciplinar de Materiais Avançados - LIMAV, Universidade Federal do Piauí, Campus ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
| | - Edson C Silva-Filho
- Laboratório Interdisciplinar de Materiais Avançados - LIMAV, Universidade Federal do Piauí, Campus ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
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