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Silva AK, Oliveira GDAR, Castro A, Prado CS, Lião LM. The most consumed beef cuts in Brazil: prices versus metabolic profile. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Marchica A, Cotrozzi L, Lorenzini G, Nali C, Pellegrini E. Antioxidants and Phytohormones Act in Coordination to Regulate Sage Response to Long Term Ozone Exposure. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11070904. [PMID: 35406884 PMCID: PMC9002621 DOI: 10.3390/plants11070904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/18/2022] [Accepted: 03/25/2022] [Indexed: 05/14/2023]
Abstract
Antioxidants and phytohormones are hallmarks of abiotic stress responses in plants. Although it is known that they can offer cell protection or accelerate programmed cell death (PCD) depending on the level of stress, the involvement of these metabolites in stress acclimation is still not fully elucidated. Here, we showed the role of antioxidants and phytohormones in Salvia officinalis tolerance to long-term ozone (O3) exposure (120 ppb for 36 days, 5 h day-1). Salicylic acid (SA) content was increased under O3 throughout the whole experiment (+150%, as average compared with control), being required to maintain the cellular redox state and potentiate defense responses. This accumulation was induced before the production of ethylene (ET), suggesting that ET was controlled by SA during O3 exposure to modulate the magnitude of chlorosis formation and the cell redox balance (by regulating ascorbate and glutathione levels). The synthesis and/or regeneration of these antioxidants did not protect membranes from lipid peroxidation, as demonstrated by the accumulation of malondialdehyde (+23% as average). However, these processes of lipid oxidation did not include the synthesis of the membrane breakdown products, as confirmed by the unchanged values of jasmonic acid, thus indicating that this compound was not involved in the regulation of PCD strategies.
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Affiliation(s)
- Alessandra Marchica
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (A.M.); (G.L.); (C.N.); (E.P.)
| | - Lorenzo Cotrozzi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (A.M.); (G.L.); (C.N.); (E.P.)
- CIRSEC, Centre for Climate Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Nutrafood Research Center, University of Pisa, Via del Borghetto 50, 56124 Pisa, Italy
- Correspondence: ; Tel.: +39-050-2210563
| | - Giacomo Lorenzini
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (A.M.); (G.L.); (C.N.); (E.P.)
- CIRSEC, Centre for Climate Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Nutrafood Research Center, University of Pisa, Via del Borghetto 50, 56124 Pisa, Italy
| | - Cristina Nali
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (A.M.); (G.L.); (C.N.); (E.P.)
- CIRSEC, Centre for Climate Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Nutrafood Research Center, University of Pisa, Via del Borghetto 50, 56124 Pisa, Italy
| | - Elisa Pellegrini
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (A.M.); (G.L.); (C.N.); (E.P.)
- CIRSEC, Centre for Climate Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Nutrafood Research Center, University of Pisa, Via del Borghetto 50, 56124 Pisa, Italy
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Huang R, Yu QH, Yao XD, Liu WL, Cheng YJ, Ma YH, Zhang AQ, Qin SY. Self-Deliverable Peptide-Mediated and Reactive-Oxygen-Species-Amplified Therapeutic Nanoplatform for Highly Effective Bacterial Inhibition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:159-171. [PMID: 34929082 DOI: 10.1021/acsami.1c17271] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
An "antibiotic-free strategy" provides a viable option to address bacterial infections, especially for the "superbug" challenge. However, the undesirable antibacterial activity of antibiotic-free agents hinders their practical applications. In this study, we developed a combination antibacterial strategy of coupling peptide-drug therapy with chemodynamic therapy (CDT) to achieve the effective bacterial inhibition. An amphiphilic oligopeptide (LAOOH-OPA) containing a therapeutic unit of D(KLAK)2 peptide and a hydrophobic linoleic acid hydroperoxide (LAHP) was designed. The positively charged D(KLAK)2 peptide with an α-helical conformation enabled rapid binding with microbial cells via electrostatic interaction and subsequent membrane insertion to deactivate the bacterial membrane. When triggered by Fe2+, moreover, LAHP could generate singlet oxygen (1O2) to elicit lipid bilayer leakage for enhanced bacteria inhibition. In vitro assays demonstrated that the combination strategy possessed excellent antimicrobial activity not only merely toward susceptible strains (Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli) but also toward methicillin-resistant Staphylococcus aureus (MRSA). On the mouse skin abscess model induced by S. aureus, self-assembled LAOOH-OPA exhibited a more significant bacteria reduction (1.4 log10 reduction) in the bioburden compared to that of the standard vancomycin (0.9 log10 reduction) without apparent systemic side effects. This combination antibacterial strategy shows great potential for effective bacterial inhibition.
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Affiliation(s)
- Rong Huang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, P. R. China
| | - Qi-Hang Yu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South Central University for Nationalities, Wuhan 430074, China
| | - Xue-Di Yao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, P. R. China
| | - Wen-Long Liu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South Central University for Nationalities, Wuhan 430074, China
| | - Yin-Jia Cheng
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South Central University for Nationalities, Wuhan 430074, China
| | - Yi-Han Ma
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South Central University for Nationalities, Wuhan 430074, China
| | - Ai-Qing Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South Central University for Nationalities, Wuhan 430074, China
| | - Si-Yong Qin
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South Central University for Nationalities, Wuhan 430074, China
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Bento JAC, Bassinello PZ, Morais DK, Souza Neto MAD, Bataus LAM, Carvalho RN, Caliari M, Soares Júnior MS. Pre-gelatinized flours of black and carioca bean by-products: Development of gluten-free instant pasta and baked snacks. Int J Gastron Food Sci 2021. [DOI: 10.1016/j.ijgfs.2021.100383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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E G Alves N, J C Gomes M, M Vasconcelos C, C Lima A, L S de Lima S, S Brito E, Z Bassinello P, S D Martino H. Six months under uncontrolled relative humidity and room temperature changes technological characteristics and maintains the physicochemical and functional properties of carioca beans (Phaseolus vulgaris L.). Food Chem 2020; 342:128390. [PMID: 33268174 DOI: 10.1016/j.foodchem.2020.128390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 09/19/2020] [Accepted: 10/10/2020] [Indexed: 10/23/2022]
Abstract
Carioca beans contribute to health maintenance around the world, and the evaluation of commercial postharvest storage (CPS) ensures their quality. This study aimed to evaluate the effect of CPS on technological, physicochemical and functional properties of carioca beans. Two genotypes (Pontal-PO and Madreperola-MP beans) were stored under CPS or controlled conditions and were evaluated after harvest and after three- and six-months storage. PO and MP hardened with time, but the cooking time did not differ. PO is darker than MP and both darkened over time. Storage time affected pH and acidity of the beans and MP presented better physicochemical properties than PO, with lower activity of peroxidase (p = 0.004) and polyphenoloxidase (p = 0.001) enzymes. Glycosylated kaempferol was suggested as a possible chemical marker to differentiate the aging of PO and MP beans. In conclusion, besides the technological differences, the storage was able to prevent physicochemical and functional alterations of beans.
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Affiliation(s)
- Natália E G Alves
- Department of Nutrition and Health, Federal University of Viçosa, Purdue Avenue, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Mariana J C Gomes
- Department of Nutrition and Health, Federal University of Viçosa, Purdue Avenue, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Christiane M Vasconcelos
- Food Biotechnology Laboratory, Vila Velha University, 21 Comissário José Dantas de Melo Avenue, Boa Vista Campus, Vila Velha, Espírito Santo, Brazil
| | - Ana C Lima
- Department of Nutrition and Health, Federal University of Viçosa, Purdue Avenue, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Sâmara L S de Lima
- Department of Nutrition and Health, Federal University of Viçosa, Purdue Avenue, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Edy S Brito
- Embrapa Agroindústria Tropical, 2270, Dr. Sara Mesquita Street, Fortaleza, Ceará, Brazil
| | - Priscila Z Bassinello
- Embrapa Rice and Beans, Highway GO-462, Km 12. Countryside. Santo Antônio de Goiás, Goiás, Brazil
| | - Hércia S D Martino
- Department of Nutrition and Health, Federal University of Viçosa, Purdue Avenue, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil.
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