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Ferreyra Maillard APV, Bordón A, Cutro AC, Dalmasso PR, Hollmann A. Green One-Step Synthesis of Silver Nanoparticles Obtained from Schinus areira Leaf Extract: Characterization and Antibacterial Mechanism Analysis. Appl Biochem Biotechnol 2024; 196:1104-1121. [PMID: 37335458 DOI: 10.1007/s12010-023-04591-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2023] [Indexed: 06/21/2023]
Abstract
The increased emergence of antibiotic-resistant bacteria is a serious health problem worldwide. In this sense, silver nanoparticles (AgNPs) have received increasing attention for their antimicrobial activity. In this context, the goal of this study was to produce AgNPs by a green synthesis protocol using an aqueous leaf extract of Schinus areira as biocomposite to later characterize their antimicrobial action. The nanomaterials obtained were characterized by UV‒vis spectroscopy, DLS, TEM, and Raman, confirming the presence of quasi-spherical AgNPs with a negative surface charge and diameter around 11 nm. Afterward, the minimum inhibitory and bactericidal concentration of the AgNPs against Staphylococcus aureus and Escherichia coli were obtained, showing high antibacterial activity. In both of the examined bacteria, the AgNPs were able to raise intracellular ROS levels. In E. coli, the AgNPs can harm the bacterial membrane as well. Overall, it can be concluded that it was possible to obtain AgNPs with colloidal stability and antibacterial activity against Gram-positive and Gram-negative bacteria. Our findings point to at least two separate mechanisms that can cause cell death, one of which involves bacterial membrane damage and the other of which involves intracellular ROS induction.
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Affiliation(s)
- Anike P V Ferreyra Maillard
- Laboratorio de Compuestos Bioactivos, Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL), CONICET, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina
| | - Anahí Bordón
- Laboratorio de Compuestos Bioactivos, Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL), CONICET, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina
- Facultad de Agronomía y Agroindustrias, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina
| | - Andrea C Cutro
- Laboratorio de Compuestos Bioactivos, Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL), CONICET, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina
- Facultad de Ciencias Médicas, Universidad Nacional de Santiago del Estero, Calle Reforma del 18 N° 1234, 4200, Santiago del Estero, Argentina
| | - Pablo R Dalmasso
- CIQA, CONICET, Departamento de Ingeniería Química, Facultad Regional Córdoba, Universidad Tecnológica Nacional, Maestro López Esq. Cruz Roja Argentina, 5016, Córdoba, Argentina.
| | - Axel Hollmann
- Laboratorio de Compuestos Bioactivos, Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL), CONICET, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina.
- Laboratorio de Microbiología Molecular, Instituto de Microbiología Básica y Aplicada, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, B1876BXD, Bernal, Argentina.
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Yonny ME, Toscano Adamo ML, Rodríguez Torresi A, Reversat G, Zhou B, Oger C, Galano JM, Durand T, Vigor C, Nazareno MA. Oxidative stress mitigation in horticultural crops using foliar applications of Ilex paraguariensis extract: a dose-dependent study. Physiol Plant 2023; 175:e14066. [PMID: 38148241 DOI: 10.1111/ppl.14066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 10/10/2023] [Indexed: 12/28/2023]
Abstract
Abiotic stress has been shown to induce the formation of reactive oxygen species (ROS) in plant cells. When the level of ROS surpasses the capacity of the endogenous defence mechanism, oxidative stress status is reached, leading to plant damage and a drop in crop productivity. Under oxidative stress conditions, ROS can react with polyunsaturated fatty acids to form oxidized derivatives called phytoprostanes (PhytoPs) and phytofurans (PhytoFs), which are recognized as biomarkers of oxidative damage advance. Modern agriculture proposes the use of biostimulants as a sustainable strategy to alleviate the negative effects of oxidative stress on plants. This work evaluates the dose effect of natural antioxidant extract to mitigate the oxidative-stress deleterious effects in melon and sweet pepper exposed to thermal stress. The plants were sprayed with Ilex paraguariensis (IP) aqueous extract in three different concentrations before exposure to abiotic stress. PhytoP and PhytoF levels were determined in the leaves of melon and pepper plants. IP1 and IP2 were effective against oxidative stress in both plants, with IP1 being the most protective one. IP1 decreased the levels of PhytoPs and PhytoFs by roughly 44% in both melon plants and pepper plants. The yield, with IP1, increased by 57 and 39% in stressed melon and pepper plants, respectively. IP3 foliar application in melon plants induced a pro-oxidant effect rather than the expected mitigating action. However, in sweet pepper plants, IP3 decreased the oxidative stress progress and increased the fruit yield.
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Affiliation(s)
- Melisa E Yonny
- Instituto de Ciencias Químicas- Facultad de Agronomía y Agroindustrias -Universidad Nacional de Santiago del Estero. CONICET. Santiago del Estero, Argentina
| | - María L Toscano Adamo
- Instituto de Ciencias Químicas- Facultad de Agronomía y Agroindustrias -Universidad Nacional de Santiago del Estero. CONICET. Santiago del Estero, Argentina
| | | | - Guillaume Reversat
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM, Faculté de Pharmacie, Montpellier, France
| | - Binqging Zhou
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM, Faculté de Pharmacie, Montpellier, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM, Faculté de Pharmacie, Montpellier, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM, Faculté de Pharmacie, Montpellier, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM, Faculté de Pharmacie, Montpellier, France
| | - Claire Vigor
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM, Faculté de Pharmacie, Montpellier, France
| | - Mónica A Nazareno
- Instituto de Ciencias Químicas- Facultad de Agronomía y Agroindustrias -Universidad Nacional de Santiago del Estero. CONICET. Santiago del Estero, Argentina
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Coria MS, Ledesma MSC, Rojas JRG, Grigioni G, Palma GA, Borsarelli CD. Prediction of tenderness in bovine longissimus thoracis et lumborum muscles using Raman spectroscopy. Anim Biosci 2023; 36:1435-1444. [PMID: 36915932 PMCID: PMC10472156 DOI: 10.5713/ab.22.0451] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/29/2022] [Accepted: 01/30/2023] [Indexed: 02/27/2023] Open
Abstract
OBJECTIVE This study was conducted to evaluate Raman spectroscopy technique as a noninvasive tool to predict meat quality traits on Braford longissimus thoracis et lumborum muscle. METHODS Thirty samples of muscle from Braford steers were analyzed by classical meat quality techniques and by Raman spectroscopy with 785 nm laser excitation. Water holding capacity (WHC), intramuscular fat content (IMF), cooking loss (CL), and texture profile analysis recording hardness, cohesiveness, and chewiness were determined, along with fiber diameter and sarcomere length by scanning electron microscopy. Warner-Bratzler shear force (WBSF) analysis was used to differentiate tender and tough meat groups. RESULTS Higher values of cohesiveness and CL, together with lower values of WHC, IMF, and shorter sarcomere were obtained for tender meat samples than for the tougher ones. Raman spectra analysis allows tender and tough sample differentiation. The correlation between the quality attributes predicted by Raman and the physical measurements resulted in values of R2 = 0.69 for hardness and 0,58 for WBSF. Pearson's correlation coefficient of hardness (r = 0.84) and WBSF (r = 0.79) parameters with the phenylalanine Raman signal at 1,003 cm-1, suggests that the content of this amino acid could explain the differences between samples. CONCLUSION Raman spectroscopy with 785 nm laser excitation is a suitable and accurate technique to identify beef with different quality attributes.
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Affiliation(s)
- María Sumampa Coria
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero, G4206XCP, Santiago del Estero,
Argentina
- Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias. Instituto para el desarrollo agropecuario del semiárido (INDEAS), G4200ABT, Santiago del Estero,
Argentina
| | - María Sofía Castaño Ledesma
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero, G4206XCP, Santiago del Estero,
Argentina
| | - Jorge Raúl Gómez Rojas
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero, G4206XCP, Santiago del Estero,
Argentina
| | - Gabriela Grigioni
- Universidad de Morón. Facultad de Agronomía y Ciencias Agroalimentarias, Buenos Aires, B1708JPD,
Argentina
- Instituto Tecnología de Alimentos - Instituto de Ciencia y Tecnología de Sistemas Alimentarios Sustentables, UEDD INTA CONICET, CP 1712 Castelar, Buenos Aires,
Argentina
| | - Gustavo Adolfo Palma
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero, G4206XCP, Santiago del Estero,
Argentina
- Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias. Instituto para el desarrollo agropecuario del semiárido (INDEAS), G4200ABT, Santiago del Estero,
Argentina
| | - Claudio Darío Borsarelli
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero, G4206XCP, Santiago del Estero,
Argentina
- Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias. Instituto de Ciencias Químicas (ICQ), G4200ABT, Santiago del Estero,
Argentina
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Vera CC, Borsarelli CD. Photo-induced protein modifications: a range of biological consequences and applications. Biophys Rev 2023; 15:569-576. [PMID: 37681095 PMCID: PMC10480124 DOI: 10.1007/s12551-023-01081-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/16/2023] [Indexed: 09/09/2023] Open
Abstract
Proteins are the most abundant biomolecules in living organisms and tissues and are also present in many natural and processed foods and beverages, as well as in pharmaceuticals and therapeutics. When exposed to UV-visible light, proteins containing endogenous or exogenous chromophores can undergo direct and indirect photochemical processes, resulting in protein modifications including oxidation of residues, cross-linking, proteolysis, covalent binding to molecules and interfaces, and conformational changes. When these modifications occur in an uncontrolled manner in a physiological context, they can lead to biological dysfunctions that ultimately result in cell death. However, rational design strategies involving light-activated protein modification have proven to be a valuable tool for the modulation of protein function or even for the construction of new biomaterials. This mini-review describes the fundamentals of photochemical processes in proteins and explores some of their emerging biomedical and nanobiotechnological applications, such as photodynamic therapy (PDT), photobonding for wound healing, photobioprinting, photoimmobilization of biosensors and enzymes for sensing, and biocatalysis, among others.
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Affiliation(s)
- Claudia Cecilia Vera
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET. Universidad Nacional de Santiago del Estero (UNSE), RN 9, Km 1125, G4206XCP Santiago del Estero, Argentina
| | - Claudio Darío Borsarelli
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET. Universidad Nacional de Santiago del Estero (UNSE), RN 9, Km 1125, G4206XCP Santiago del Estero, Argentina
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