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Gaviria YAR, Chacon WDC, Cesca K, Leandro GC, Valencia GA, da Costa C. Smart labels based on polyvinyl alcohol incorporated with chitosan nanoparticles loaded with grape extract: Functionality, stability and food application. Int J Biol Macromol 2024; 263:130513. [PMID: 38428758 DOI: 10.1016/j.ijbiomac.2024.130513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/19/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
Anthocyanins (ACNs) are natural compounds with potential applications due to their colorimetric response to pH. Due to their sensitivity to various environmental factors, nanoencapsulation with biopolymers is a successful strategy for stabilizing ACNs. In this work ACNs were extracted from grape skins and encapsulated into chitosan (CS) nanoparticles by ionic gelation using sodium tripolyphosphate (TPP) as a cross-linking agent. CS nanoparticles loaded with ACNs had particle sizes between 291 and 324 nm and polydispersity index around 0.3. The encapsulation efficiency of ACNs was approximately 60 %; and encapsulated anthocyanins (ACN-NPs) exhibited color change properties under different pH conditions. pH-sensitive labels based on polyvinyl alcohol (PVA) were prepared by the casting method. The effect of incorporating ACN-NPs on the physical, structural, and pH-sensitive properties of PVA labels was evaluated, and its application as shrimp freshness indicator was studied. The nanoencapsulation protected ACNs against heat and light treatments, preserving the original purple color. When applying the label, visible changes from red to blue until reaching yellow were observed with the change in the quality of the shrimp at the refrigeration temperature. The results suggest that PVA labels containing ACNs encapsulated in C-NPs can be used as smart packaging labels in the food industry.
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Affiliation(s)
| | | | - Karina Cesca
- Department of Chemical and Food Engingeheering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Gabriel Coelho Leandro
- Department of Chemical and Food Engingeheering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Germán Ayala Valencia
- Department of Chemical and Food Engingeheering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Cristiane da Costa
- Department of Chemical and Food Engingeheering, Federal University of Santa Catarina, Florianópolis, SC, Brazil; Department of Textile Engineering, Federal University of Santa Catarina, Blumenau, SC, Brazil.
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Valle JAB, Curto Valle RDCS, da Costa C, Maestá FB, Lis Arias MJ. Reservoir Effect of Textile Substrates on the Delivery of Essential Oils Microencapsulated by Complex Coacervation. Polymers (Basel) 2024; 16:670. [PMID: 38475353 DOI: 10.3390/polym16050670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Microcapsules are being used in textile substrates increasingly more frequently, availing a wide spectrum of possibilities that are relevant to future research trends. Biofunctional Textiles is a new field that should be carefully studied, especially when dealing with microencapsulated essential oils. In the final step, when the active principle is delivered, there are some possibilities to quantify and simulate its doses on the skin or in the environment. At that stage, there is a phenomenon that can help to better control the delivery and the reservoir effect of the textile substrate. Depending on the chemical characteristics of the molecule to be delivered, as well as the structure and chemical nature of the fabric where it has been applied, there is physicochemical retention exerted by fibers that strongly controls the final rate of principle active delivery to the external part of the textile substrate. The study of this type of effect in two different substrates (cotton and polyester) will be described here regarding two different essential oils microencapsulated and applied to the substrates using padding technology. The experimental results of the final drug delivery demonstrate this reservoir effect in both essential oils.
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Affiliation(s)
| | | | - Cristiane da Costa
- Department of Textile Engineering, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil
| | - Fabrício Bezerra Maestá
- Textile Engineering (COENT), Universidade Tecnológica Federal do Paraná (UTFPR), Apucarana 86812-460, Brazil
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Müller L, Zanghelini G, Laroque DA, Laurindo JB, Valencia GA, Costa CD, Carciofi BA. Cold atmospheric plasma for producing antibacterial bilayer films of LLDPE/cassava starch added with ZnO-nanoparticles. Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2022.100988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Machado Neubauer T, Santos Serpa F, Franceschi E, Dariva C, Sayer C, Hermes de Araújo PH, Barbosa Castro B, Aldeia W, da Costa C. Crystallization of Calcium Carbonate: Modeling Thermodynamic Equilibrium, Pathway, Nucleation, Growth, Agglomeration, and Dissolution Kinetics with the Presence of Mg 2+, Ba 2+, and Sr 2+. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thiago Machado Neubauer
- Department of Chemical and Food Engineering/CTC, Federal University of Santa Catarina, P.O. Box 476, Florianópolis, SC CEP 88040-970, Brazil
| | - Fabiane Santos Serpa
- Center for Study on Colloidal Systems (NUESC)/Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju, SE CEP 49032-490, Brazil
| | - Elton Franceschi
- Center for Study on Colloidal Systems (NUESC)/Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju, SE CEP 49032-490, Brazil
| | - Claudio Dariva
- Center for Study on Colloidal Systems (NUESC)/Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju, SE CEP 49032-490, Brazil
| | - Claudia Sayer
- Department of Chemical and Food Engineering/CTC, Federal University of Santa Catarina, P.O. Box 476, Florianópolis, SC CEP 88040-970, Brazil
| | - Pedro Henrique Hermes de Araújo
- Department of Chemical and Food Engineering/CTC, Federal University of Santa Catarina, P.O. Box 476, Florianópolis, SC CEP 88040-970, Brazil
| | - Bruno Barbosa Castro
- Leopoldo Américo Miguez de Mello Research and Development Center (CENPES)/Petróleo Brasileiro S/A (PETROBRAS), Av. Horácio Macedo, 950, Ilha do Fundão, Rio de Janeiro, RJ CEP 21941-915, Brazil
| | - Wagner Aldeia
- Institute of Technological Research-IPT, Av. Prof. Almeida Prado, 532 - Butantã, São Paulo, SP CEP 05508-901, Brazil
| | - Cristiane da Costa
- Department of Chemical and Food Engineering/CTC, Federal University of Santa Catarina, P.O. Box 476, Florianópolis, SC CEP 88040-970, Brazil
- Department of Textile Engineering/CTE, Federal University of Santa Catarina, Rua João Pessoa, 2514, Blumenau, SC CEP 89036-004, Brazil
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Alves RC, Agner T, Rodrigues TS, Machado F, Neto BA, da Costa C, de Araújo PH, Sayer C. Cationic miniemulsion polymerization of styrene mediated by imidazolium based ionic liquid. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.04.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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dos Santos M, Gavini G, Siqueira EL, da Costa C. Effect of Nitrogen Ion Implantation on the Flexibility of Rotary Nickel-Titanium Instruments. J Endod 2012; 38:673-5. [DOI: 10.1016/j.joen.2012.01.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 01/13/2012] [Accepted: 01/30/2012] [Indexed: 10/28/2022]
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Abstract
Using ab initio calculations based on density-functional theory we have performed a theoretical investigation of substitutional boron and nitrogen impurities in silicon carbide (SiC) nanoribbons. We have considered hydrogen terminated SiC ribbons with zigzag and armchair edges. In both systems we verify that the boron and nitrogen atoms energetically prefer to be localized at the edges of the nanoribbons. However, while boron preferentially substitutes a silicon atom, nitrogen prefers to occupy a carbon site. In addition, our electronic-structure calculations indicate that (i) substitutional boron and nitrogen impurities do not affect the semiconducting character of the armchair SiC nanoribbons, and (ii) the half-metallic behavior of the zigzag nanoribbons is maintained in the presence of substitutional boron impurities. In contrast, nitrogen atoms occupying edge carbon sites transform half-metallic zigzag nanoribbons into metallic systems.
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Affiliation(s)
- C D Costa
- Instituto de Ciências Exatas, Universidade Federal de Alfenas, Alfenas, MG, Brazil
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Friedman GF, Costa CD, Vieira SR, Fialkow L. The value of pulse pressure variation to predict volume response in patients ventilated with low VT. Crit Care 2010. [PMCID: PMC2934240 DOI: 10.1186/cc8348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Costa CD, Schmidt BJ, de Barros FJ, Tamega I das E. [Intestinal absorption of fats in children using serum turbidity and triglyceride absorption tests]. Arq Gastroenterol 1985; 22:196-203. [PMID: 3837660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Intestinal fat absorption was studied, using serum turbidity and serum triglyceride levels, which were determined before and after a test meal of 2 g neutral fat per kg b.w. in 33 children: 25 controls, four with cystic fibrosis, and four with celiac disease. The results proved that the easy-to-perform serum turbidity test was superior to the triglyceride absorption test in characterizing fat digestion and absorption. The most substantial increase in both tests occurred about three hours after the oral fat load.
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Fernandes JP, Mascarenhas MJ, Costa CD, Correia JP. Diffuse leiomyomatosis of the esophagus: a case report and review of the literature. Am J Dig Dis 1975; 20:684-90. [PMID: 1146792 DOI: 10.1007/bf01071177] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A case of diffuse leiomyomatosis of the esophagus in a 21-year-old woman with a 5-year history of dysphagia is presented. The radiological appearance was that of achalasia, but at esophagoscopy, a diagnosis of an organic stricture of the lower end of the esophagus was made. During the operation a diffuse tumor involving the lower end of the esophagus, cardia, upper portion of the stomach, and the tail of the pancreas was found. The histological diagnosis was diffuse leiomyomatosis of the esophagus. The individual characteristics of the microscopic picture are described. Distal esophagectomy and total gastrectomy resulted in complete recovery of the patient. This is a very rare condition; only a dozen similar cases have been published before. The data of these patients are presented.
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