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Lobo RE, Orrillo PA, Ribotta SB, de Valdez GF, García MS, Cabello JCR, Torino MI. Structural characterization of a homopolysaccharide produced by Weissella cibaria FMy 2-21-1 and its potential application as a green corrosion inhibiting film. Int J Biol Macromol 2022; 212:193-201. [PMID: 35594939 DOI: 10.1016/j.ijbiomac.2022.05.105] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 09/09/2021] [Revised: 05/09/2022] [Accepted: 05/14/2022] [Indexed: 11/26/2022]
Abstract
Steel corrosion is a global issue that affects safety and the economy. Currently, the homopolysaccharide (HoPS) structure of a novel lactic acid bacterium (LAB) is under study, as well as its application as a green corrosion inhibitor. Weissella cibaria FMy 2-21-1 is a LAB strain capable of producing HoPS in sucrose enriched media. The isolated and purified HoPS was characterized by different spectroscopic analyses as a linear α-1,6 dextran adopting a random coil conformation, with high molecular weight and extended size in water. The polysaccharide showed a semi-crystalline organization, which is a requirement for film formation. Its biocoating showed a grainy network structure, with a slightly lesser hydrophobic role in the aqueous environment than in the ionic one. The electrochemical measurements of the steel-HoPS coating showed that the biopolymer layer acts as an anodic-type corrosion inhibitor, with high resistance to corrosion by water and with chloride ions which prevent pitting, a corrosion process typical of bare steel. Few reports have cited the application of LAB HoPS as corrosive coating inhibitors. This work is the first to explore the influence of a structurally characterized dextran from Weissella cibaria strain as a potential steel corrosion inhibitor in ionic environments.
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Affiliation(s)
- René Emanuel Lobo
- Centro de Referencia para Lactobacilos (CERELA)-CCT CONICET NOA Sur, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
| | - Patricio Andrés Orrillo
- Instituto de Química del Noroeste Argentino (INQUINOA) - Universidad Nacional de Tucumán (UNT) - CCT CONICET NOA Sur, Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, UNT, Batalla de Ayacucho 471, San Miguel de Tucumán 4000, Tucumán, Argentina.
| | - Susana Beatriz Ribotta
- Instituto de Química del Noroeste Argentino (INQUINOA) - Universidad Nacional de Tucumán (UNT) - CCT CONICET NOA Sur, Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, UNT, Batalla de Ayacucho 471, San Miguel de Tucumán 4000, Tucumán, Argentina.
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA)-CCT CONICET NOA Sur, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
| | - Mercedes Santos García
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology), University of Valladolid, CIBER-BBN, 47011 Valladolid, Spain.
| | - José Carlos Rodríguez Cabello
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology), University of Valladolid, CIBER-BBN, 47011 Valladolid, Spain.
| | - María Inés Torino
- Centro de Referencia para Lactobacilos (CERELA)-CCT CONICET NOA Sur, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
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Correa Deza MA, Rodríguez de Olmos A, Suárez NE, Font de Valdez G, Salva S, Gerez CL. Inorganic polyphosphate from the immunobiotic Lactobacillus rhamnosus CRL1505 prevents inflammatory response in the respiratory tract. Saudi J Biol Sci 2021; 28:5684-5692. [PMID: 34588880 PMCID: PMC8459082 DOI: 10.1016/j.sjbs.2021.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 11/25/2022] Open
Abstract
Lactobacillus (L.) rhamnosus CRL1505 accumulates inorganic polyphosphate (polyP) in its cytoplasm in response to environmental stress. The aim of this study was to evaluate the potential effects of polyP from the immunobiotic CRL1505 on an acute respiratory inflammation murine animal model induced by lipopolysaccharide (LPS). First, the presence of polyP granules in the cytoplasm of CRL1505 strain was evidenced by specific staining. Then, it was demonstrated in the intracellular extracts (ICE) of CRL1505 that polyP chain length is greater than 45 phosphate residues. In addition, the functionality of the genes involved in the polyP metabolism (ppk, ppx1 and ppx2) was corroborated by RT-PCR. Finally, the possible effect of the ICE of CRL1505 strain containing polyP and a synthetic polyP was evaluated in vivo using a murine model of acute lung inflammation. It was observed that the level of cytokines pro-inflammatory (IL-17, IL-6, IL-2, IL-4, INF-γ) in serum was normalized in mice treated with ICE, which would indicate that polyP prevents the local inflammatory response in the respiratory tract. The potential application of ICE from L. rhamnosus CRL1505 as a novel bioproduct for the treatment of respiratory diseases is one of the projections of this work.
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Affiliation(s)
- María A Correa Deza
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Antonieta Rodríguez de Olmos
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Nadia E Suárez
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Susana Salva
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Carla L Gerez
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
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Lobo RE, Figueroa T, Navarro D, Gómez MI, Font de Valdez G, Torino MI. Techno-functional properties of HoPS from lactic acid bacteria of different origins as potential food additives. Food Chem 2021; 356:129627. [PMID: 33839531 DOI: 10.1016/j.foodchem.2021.129627] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 11/15/2019] [Revised: 03/05/2021] [Accepted: 03/13/2021] [Indexed: 12/14/2022]
Abstract
Homopolysaccharides (HoPS) produced by lactic acid bacteria (LAB) are highly versatile, biocompatible and safe compounds. In this work, six HoPS from different species of Weisella and Leuconostoc were identified as thermally stable dextrans, with endothermic crystalline deformations between 214 and 239 °C. These dextrans proved to have greater solubility and capacities to retain water and oil than similar polymers in other reports. Furthermore, a surface morphology study presented cubic grumps, stratify mesh with irregular grumps, and highly compact filaments. Assays in vitro revealed moderate antioxidant, browning and foaming activities as well as technological properties, such as anti-syneresis, emulsifying and flocculating activities, even at low concentrations. Taking into account bipolymers' microstructure, functionalities and performance in both, aqueous and hydrophobic matrixes, plus their capacity to maintain themselves at elevated temperatures, we consider these HoPS beneficial and natural food additives.
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Affiliation(s)
- René Emanuel Lobo
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
| | - Theo Figueroa
- Ludwig-Maximilians Universität (LMU), Department Biology I - Botanic, Faculty of Biology, LMU Biocenter, Großhaderner Str. 2-4, 82152 Planegg - Martinsried, Munich, Germany.
| | - Diego Navarro
- Departamento de Química Orgánica (CIHIDECAR), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428, Buenos Aires, Argentina.
| | - María Inés Gómez
- Instituto de Química Inorgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Batalla de Ayacucho 471, San Miguel de Tucumán 4000 Tucumán, Argentina.
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
| | - María Inés Torino
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Batalla de Chacabuco 145, San Miguel de Tucumán 4000, Tucumán, Argentina.
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Roselino MN, Sakamoto IK, Tallarico Adorno MA, Márcia Canaan JM, de Valdez GF, Rossi EA, Sivieri K, Umbelino Cavallini DC. Effect of fermented sausages with probiotic Enterococcus faecium CRL 183 on gut microbiota using dynamic colonic model. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109876] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Bustos AY, Font de Valdez G, Fadda S, Taranto MP. New insights into bacterial bile resistance mechanisms: the role of bile salt hydrolase and its impact on human health. Food Res Int 2018; 112:250-262. [DOI: 10.1016/j.foodres.2018.06.035] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/14/2018] [Accepted: 06/18/2018] [Indexed: 01/18/2023]
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Celiberto LS, Bedani R, Dejani NN, Ivo de Medeiros A, Sampaio Zuanon JA, Spolidorio LC, Tallarico Adorno MA, Amâncio Varesche MB, Carrilho Galvão F, Valentini SR, Font de Valdez G, Rossi EA, Cavallini DCU. Effect of a probiotic beverage consumption (Enterococcus faecium CRL 183 and Bifidobacterium longum ATCC 15707) in rats with chemically induced colitis. PLoS One 2017; 12:e0175935. [PMID: 28437455 PMCID: PMC5402984 DOI: 10.1371/journal.pone.0175935] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 04/03/2017] [Indexed: 12/11/2022] Open
Abstract
Background Some probiotic strains have the potential to assist in relieving the symptoms of inflammatory bowel disease. The impact of daily ingestion of a soy-based product fermented by Enterococcus faecium CRL 183 and Lactobacillus helveticus 416 with the addition of Bifidobacterium longum ATCC 15707 on chemically induced colitis has been investigated thereof within a period of 30 days. Methods Colitis was induced by dextran sulfate sodium. The animals were randomly assigned into five groups: Group C: negative control; Group CL: positive control; Group CLF: DSS with the fermented product; Group CLP: DSS with the non-fermented product (placebo); Group CLS: DSS with sulfasalazine. The following parameters were monitored: disease activity index, fecal microbial analyses, gastrointestinal survival of probiotic microorganisms and short-chain fatty acids concentration in the feces. At the end of the protocol the animals’ colons were removed so as to conduct a macroscopical and histopathological analysis, cytokines and nitrite quantification. Results Animals belonging to the CLF group showed fewer symptoms of colitis during the induction period and a lower degree of inflammation and ulceration in their colon compared to the CL, CLS and CLP groups (p<0.05). The colon of the animals in groups CL and CLS presented severe crypt damage, which was absent in CLF and CLP groups. A significant increase in the population of Lactobacillus spp. and Bifidobacterium spp. at the end of the protocol was verified only in the CLF animals (p<0.05). This group also showed an increase in short-chain fatty acids (propionate and acetate). Furthermore, the intestinal survival of E. faecium CRL 183 and B. longum ATCC 15707 in the CLF group has been confirmed by biochemical and molecular analyzes. Conclusions The obtained results suggest that a regular intake of the probiotic product, and placebo to a lesser extent, can reduce the severity of DSS-induced colitis on rats.
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Affiliation(s)
- Larissa Sbaglia Celiberto
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Alimentos e Nutrição, SP, Brasil
| | - Raquel Bedani
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Naiara Naiana Dejani
- Universidade de São Paulo (USP), Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto. Departamento de Bioquimica e Imunologia, SP, Brasil
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Ciências Biológicas, SP, Brasil
| | - Alexandra Ivo de Medeiros
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Ciências Biológicas, SP, Brasil
| | - José Antonio Sampaio Zuanon
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Araraquara. Departametno de Fisiologia e Patologia, SP, Brasil
| | - Luis Carlos Spolidorio
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Araraquara. Departametno de Fisiologia e Patologia, SP, Brasil
| | - Maria Angela Tallarico Adorno
- Universidade de São Paulo (USP), Faculdade de Engenharia, São Carlos. Departamento de Hidraúlica e Saneamento, SP, Brasil
| | | | - Fábio Carrilho Galvão
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Ciências Biológicas, SP, Brasil
| | - Sandro Roberto Valentini
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Ciências Biológicas, SP, Brasil
| | | | - Elizeu Antonio Rossi
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Alimentos e Nutrição, SP, Brasil
| | - Daniela Cardoso Umbelino Cavallini
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara. Departamento de Alimentos e Nutrição, SP, Brasil
- * E-mail:
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Witzler JJP, Pinto RA, Font de Valdez G, de Castro AD, Cavallini DCU. Development of a potential probiotic lozenge containing Enterococcus faecium CRL 183. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.11.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Torino MI, Font de Valdez G, Mozzi F. Biopolymers from lactic acid bacteria. Novel applications in foods and beverages. Front Microbiol 2015; 6:834. [PMID: 26441845 PMCID: PMC4566036 DOI: 10.3389/fmicb.2015.00834] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 07/29/2015] [Indexed: 02/03/2023] Open
Abstract
Lactic acid bacteria (LAB) are microorganisms widely used in the fermented food industry worldwide. Certain LAB are able to produce exopolysaccharides (EPS) either attached to the cell wall (capsular EPS) or released to the extracellular environment (EPS). According to their composition, LAB may synthesize heteropolysaccharides or homopolysaccharides. A wide diversity of EPS are produced by LAB concerning their monomer composition, molecular mass, and structure. Although EPS-producing LAB strains have been traditionally applied in the manufacture of dairy products such as fermented milks and yogurts, their use in the elaboration of low-fat cheeses, diverse type of sourdough breads, and certain beverages are some of the novel applications of these polymers. This work aims to collect the most relevant issues of the former reviews concerning the monomer composition, structure, and yields and biosynthetic enzymes of EPS from LAB; to describe the recently characterized EPS and to present the application of both EPS-producing strains and their polymers in the fermented (specifically beverages and cereal-based) food industry.
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Affiliation(s)
- María I. Torino
- Technology Department, Centro de Referencia para Lactobacilos – Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de TucumánArgentina
| | | | - Fernanda Mozzi
- Technology Department, Centro de Referencia para Lactobacilos – Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de TucumánArgentina
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Pescuma M, de Valdez GF, Mozzi F. Whey-derived valuable products obtained by microbial fermentation. Appl Microbiol Biotechnol 2015; 99:6183-96. [DOI: 10.1007/s00253-015-6766-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/07/2015] [Accepted: 06/10/2015] [Indexed: 12/13/2022]
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Gerez CL, Fornaguera MJ, Obregozo MD, Font de Valdez G, Torino MI. Antifungal starter culture for packed bread: influence of two storage conditions. Rev Argent Microbiol 2015; 47:118-24. [PMID: 25896466 DOI: 10.1016/j.ram.2015.02.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 09/16/2014] [Revised: 01/08/2015] [Accepted: 02/19/2015] [Indexed: 11/29/2022] Open
Abstract
In this study, we analyzed the conservation of a semi-liquid bio-preserver (SL778) developed with Lactobacillus plantarum CRL 778, a lactic acid bacterium (LAB) having antifungal activity. The characteristics of the SL778 starter remained stable during a 14-day storage at 4°C. At -20°C, cell viability and organic acid concentration showed a significant (p<0.05) decrease after 7 days. These differences observed between the storage temperatures tested were reflected in the acidification activity of SL778 during dough fermentation. However, SL778 maintained its antifungal efficacy up to a 14-day storage at both temperatures. Sensory attributes (acidic and spicy tastes and acidic smell) of breads manufactured with starter SL778 (stored at 4 or -20°C) were evaluated. No undesirable difference was detected with respect to bread control without SL778 and bread manufactured with SL778 (stored at 4 or -20°C). In conclusion, the SL778 semi-liquid bio-preserver can be stored at 4 or -20°C without modifying its antifungal activity during 14 days.
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Affiliation(s)
- Carla L Gerez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), MINCyT, Tucumán, Argentina
| | - María J Fornaguera
- Centro de Referencia para Lactobacilos (CERELA-CONICET), MINCyT, Tucumán, Argentina
| | - Mariano D Obregozo
- Centro de Referencia para Lactobacilos (CERELA-CONICET), MINCyT, Tucumán, Argentina
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), MINCyT, Tucumán, Argentina; Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Tucumán, Argentina
| | - María I Torino
- Centro de Referencia para Lactobacilos (CERELA-CONICET), MINCyT, Tucumán, Argentina.
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Malpeli A, Taranto MP, Cravero RC, Tavella M, Fasano V, Vicentin D, Ferrari G, Magrini G, Hébert E, Valdez GFD, Varea AM, Tavella JM, González HF. Effect of Daily Consumption of <i> Lactobacillus reuteri </i> CRL 1098 on Cholesterol Reduction in Hypercholesterolemic Subjects. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/fns.2015.617163] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Gerez CL, Dallagnol A, Ponsone L, Chulze S, Font de Valdez G. Ochratoxin A production by Aspergillus niger: Effect of water activity and a biopreserver formulated with Lactobacillus plantarum CRL 778. Food Control 2014. [DOI: 10.1016/j.foodcont.2014.04.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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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Griet M, Zelaya H, Mateos MV, Salva S, Juarez GE, de Valdez GF, Villena J, Salvador GA, Rodriguez AV. Soluble factors from Lactobacillus reuteri CRL1098 have anti-inflammatory effects in acute lung injury induced by lipopolysaccharide in mice. PLoS One 2014; 9:e110027. [PMID: 25329163 PMCID: PMC4201513 DOI: 10.1371/journal.pone.0110027] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 09/09/2014] [Indexed: 12/12/2022] Open
Abstract
We have previously demonstrated that Lactobacillus reuteri CRL1098 soluble factors were able to reduce TNF-α production by human peripheral blood mononuclear cells. The aims of this study were to determine whether L. reuteri CRL1098 soluble factors were able to modulate in vitro the inflammatory response triggered by LPS in murine macrophages, to gain insight into the molecular mechanisms involved in the immunoregulatory effect, and to evaluate in vivo its capacity to exert anti-inflammatory actions in acute lung injury induced by LPS in mice. In vitro assays demonstrated that L. reuteri CRL1098 soluble factors significantly reduced the production of pro-inflammatory mediators (NO, COX-2, and Hsp70) and pro-inflammatory cytokines (TNF-α, and IL-6) caused by the stimulation of macrophages with LPS. NF-kB and PI3K inhibition by L. reuteri CRL1098 soluble factors contributed to these inhibitory effects. Inhibition of PI3K/Akt pathway and the diminished expression of CD14 could be involved in the immunoregulatory effect. In addition, our in vivo data proved that the LPS-induced secretion of the pro-inflammatory cytokines, inflammatory cells recruitment to the airways and inflammatory lung tissue damage were reduced in L. reuteri CRL1098 soluble factors treated mice, providing a new way to reduce excessive pulmonary inflammation.
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Affiliation(s)
- Milagros Griet
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Hortensia Zelaya
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Melina Valeria Mateos
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Bahía Blanca, Buenos Aires, Argentina
| | - Susana Salva
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Guillermo Esteban Juarez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Julio Villena
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | | | - Ana Virginia Rodriguez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
- * E-mail:
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Marcial G, Sendker J, Brandt S, de Lampasona MP, Catalán CAN, de Valdez GF, Hensel A. Gastroprotection as an example: antiadhesion against Helicobacter pylori, anti-inflammatory and antioxidant activities of aqueous extracts from the aerial parts of Lippia integrifolia Hieron. J Ethnopharmacol 2014; 155:1125-1133. [PMID: 24993887 DOI: 10.1016/j.jep.2014.06.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 06/14/2014] [Accepted: 06/15/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The aerial parts of Lippia integrifolia (Gris.) Hieronymus (Verbenaceae), known as incayuyo, are used by the peasant population of Argentina for treatment of diseases related to a gastrointestinal system, mainly for inflammation of the stomach and have also been included into the Argentina Food Code. This study aimed to investigate the phytochemical profile of hydrophilic extracts from the herbal material by LC-MS and to evaluate potential pharmacological mechanisms rationalizing the traditional use of incayuyo aqueous extracts potential anti-inflammatory treatment of gastrointestinal disorders. MATERIALS AND METHODS Phytochemical profiling: LC-MS of an aqueous decoction. Antiadhesive effects against Helicobacter pylori: in vitro FACS assay using FITC-labeled bacteria and AGS human stomach cells. Influence of extracts on stomach cells and RAW 264.7 macrophages: MTT viability assay and BrdU proliferation ELISA. Influence of extracts on IL-6 and IL-8 secretion from stomach cells was quantitated by ELISA after infection of the cells with Helicobacter pylori. Influence of test extracts on macrophages: phagocytosis of FITC-labeled Zymosan particles and NO production. Antioxidative capacity: DPPH assay and O2-induced caroten oxidation. RESULTS LC-MS profiling indicated the presence of compounds 1-20 with flavonoid hexosides, phenylethanoides (acteoside, isoacteoside) and sesquiterpenes [(epi)lippidulcine, peroxylippidulcine] in the decoction extract and subfraction PhF. The extract exhibits strong in vitro antioxidative capacity and inhibited adhesion of Helicobacter pylori to stomach cells up to 40%, while an EtOH-soluble fraction showed inhibition rates of up to 60%. Decoction increased the cellular viability of AGS cells significantly at >10 μg/mL, while proliferation rate was not influenced. Helicobacter pylori induced IL-8 secretion was significantly reduced by coincubation of AGS cells with the extracts. Aqueous extracts stimulated phagocytosis rate of macrophages and inhibited the LPS-induced NO-secretion. CONCLUSIONS The traditional use of aqueous extracts from Lippia integrifolia for gastric inflammation seems to be rationalized: besides anti-inflammatory effects on stomach cells antiadhesive properties of the extracts against the main bacterial inductor of gastritis Helicobacter pylori were identified. Additional effects for stimulation of innate immunity and potential radical scavenging effects may additionally contribute to the activity of the extracts.
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Affiliation(s)
- Guillermo Marcial
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Corrensstrasse 48, D-48149 Münster, Germany; Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco 145, Tucumán, San Miguel de Tucumán 4000, Argentina; INQUINOA-CONICET Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, S. M. de Tucumán T4000INI, Argentina
| | - Jandirk Sendker
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Corrensstrasse 48, D-48149 Münster, Germany
| | - Simone Brandt
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Corrensstrasse 48, D-48149 Münster, Germany
| | - Marina Perotti de Lampasona
- INQUINOA-CONICET Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, S. M. de Tucumán T4000INI, Argentina
| | - César A N Catalán
- INQUINOA-CONICET Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, S. M. de Tucumán T4000INI, Argentina
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco 145, Tucumán, San Miguel de Tucumán 4000, Argentina
| | - Andreas Hensel
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Corrensstrasse 48, D-48149 Münster, Germany.
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Pescuma M, Hébert EM, Haertlé T, Chobert JM, Mozzi F, Font de Valdez G. Lactobacillus delbrueckii subsp. bulgaricus CRL 454 cleaves allergenic peptides of β-lactoglobulin. Food Chem 2014; 170:407-14. [PMID: 25306364 DOI: 10.1016/j.foodchem.2014.08.086] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [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: 04/08/2014] [Revised: 07/03/2014] [Accepted: 08/19/2014] [Indexed: 10/24/2022]
Abstract
Whey, a cheese by-product used as a food additive, is produced worldwide at 40.7 million tons per year. β-Lactoglobulin (BLG), the main whey protein, is poorly digested and is highly allergenic. We aimed to study the contribution of Lactobacillus delbrueckii subsp. bulgaricus CRL 454 to BLG digestion and to analyse its ability to degrade the main allergenic sequences of this protein. Pre-hydrolysis of BLG by L. delbrueckii subsp. bulgaricus CRL 454 increases digestion of BLG assayed by an in vitro simulated gastrointestinal system. Moreover, peptides from hydrolysis of the allergenic sequences V41-K60, Y102-R124, C121-L140 and L149-I162 were found when BLG was hydrolysed by this strain. Interestingly, peptides possessing antioxidant, ACE inhibitory, antimicrobial and immuno-modulating properties were found in BLG degraded by both the Lactobacillus strain and digestive enzymes. To conclude, pre-hydrolysis of BLG by L. delbrueckii subsp. bulgaricus CRL 454 has a positive effect on BLG digestion and could diminish allergenic reactions.
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Affiliation(s)
- Micaela Pescuma
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco 145, 4000 San Miguel de Tucumán, Argentina
| | - Elvira M Hébert
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco 145, 4000 San Miguel de Tucumán, Argentina
| | - Thomas Haertlé
- UR 1268, Biopolymères Interactions Assemblages, INRA, Fonctions et Interactions des Protéines, Rue de la Géraudière, B.P. 71627, 44316 Nantes Cedex 3, France
| | - Jean-Marc Chobert
- UR 1268, Biopolymères Interactions Assemblages, INRA, Fonctions et Interactions des Protéines, Rue de la Géraudière, B.P. 71627, 44316 Nantes Cedex 3, France
| | - Fernanda Mozzi
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco 145, 4000 San Miguel de Tucumán, Argentina.
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco 145, 4000 San Miguel de Tucumán, Argentina; Cátedra de Microbiología Superior, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina.
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Juarez GE, Villena J, Salva S, de Valdez GF, Rodriguez AV. Lactobacillus reuteri CRL1101 beneficially modulate lipopolysaccharide-mediated inflammatory response in a mouse model of endotoxic shock. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.08.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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17
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Pescuma M, Espeche Turbay MB, Mozzi F, Font de Valdez G, Savoy de Giori G, Hebert EM. Diversity in proteinase specificity of thermophilic lactobacilli as revealed by hydrolysis of dairy and vegetable proteins. Appl Microbiol Biotechnol 2013; 97:7831-44. [PMID: 23832109 DOI: 10.1007/s00253-013-5037-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 06/04/2013] [Accepted: 06/06/2013] [Indexed: 10/26/2022]
Abstract
Ability of industrially relevant species of thermophilic lactobacilli strains to hydrolyze proteins from animal (caseins and β-lactoglobulin) and vegetable (soybean and wheat) sources, as well as influence of peptide content of growth medium on cell envelope-associated proteinase (CEP) activity, was evaluated. Lactobacillus delbrueckii subsp. lactis (CRL 581 and 654), L. delbrueckii subsp. bulgaricus (CRL 454 and 656), Lactobacillus acidophilus (CRL 636 and 1063), and Lactobacillus helveticus (CRL 1062 and 1177) were grown in a chemically defined medium supplemented or not with 1 % Casitone. All strains hydrolyzed mainly β-casein, while degradation of αs-caseins was strain dependent. Contrariwise, κ-Casein was poorly degraded by the studied lactobacilli. β-Lactoglobulin was mainly hydrolyzed by CRL 656, CRL 636, and CRL 1062 strains. The L. delbrueckii subsp. lactis strains, L. delbrueckii subsp. bulgaricus CRL 656, and L. helveticus CRL 1177 degraded gliadins in high extent, while the L. acidophilus and L. helveticus strains highly hydrolyzed soy proteins. Proteinase production was inhibited by Casitone, the most affected being the L. delbrueckii subsp. lactis species. This study highlights the importance of proteolytic diversity of lactobacilli for rational strain selection when formulating hydrolyzed dairy or vegetable food products.
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Affiliation(s)
- Micaela Pescuma
- Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco 145, 4000, San Miguel de Tucumán, Argentina
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18
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Mechoud MA, Mateos MV, de Valdez GF, Villena J, Salvador GA, Rodriguez AV. Lactobacillus reuteri CRL1098 soluble factors modulate tumor necrosis factor alpha production in peripheral blood mononuclear cells: Involvement of lipid rafts. Int Immunopharmacol 2012; 14:446-53. [DOI: 10.1016/j.intimp.2012.08.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Revised: 08/06/2012] [Accepted: 08/30/2012] [Indexed: 02/06/2023]
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Kinouchi FL, Maia DCG, de Abreu Ribeiro LC, Placeres MCP, de Valdez GF, Colombo LL, Rossi EA, Carlos IZ. A soy-based product fermented by Enterococcus faecium and Lactobacillus helveticus inhibits the development of murine breast adenocarcinoma. Food Chem Toxicol 2012; 50:4144-8. [PMID: 22954488 DOI: 10.1016/j.fct.2012.08.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 08/15/2012] [Accepted: 08/16/2012] [Indexed: 12/21/2022]
Abstract
PURPOSE Soy and its fermented products are considered functional foods. The study objective was to assess three functional food - a non-fermented soy product (NFP), fermented soy product (FSP), fermented soy product enriched with isoflavones (FI) - in terms of their ability to reduce the development of adenocarcinoma in mice, as well their ability on modulating immune system. METHODS It was observed tumor volume and to verify correlations with the immune system it was measured levels of the cytokines IL-1β and TNF-α produced by macrophages as well as IFN-γ produced by lymphocytes using ELISA test, and nitric oxide production by macrophages using Griess reagent. RESULTS All products showed immunological activity, but FSP showed the most effective tumor containment, resulting in smallest tumor volumes. FI animals expressed larger amounts of nitric oxide and IL-1β and exhibited larger tumor sizes than FSP and NFP animals. CONCLUSIONS The results suggested that the ingestion of FSP was most efficient in tumor containment, possibly due to a positive modulation of the immune system by when Enterococcus faecium and Lactobacillus helveticus are added to the soy product.
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Affiliation(s)
- Fernanda Lopes Kinouchi
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista-Rua Expedicionários do Brasil, n 1621, Araraquara, SP, Brazil.
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Molina V, Médici M, Font de Valdez G, Taranto MP. Soybean-based functional food with vitamin B12-producing lactic acid bacteria. J Funct Foods 2012. [DOI: 10.1016/j.jff.2012.05.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Mechoud MA, Juarez GE, de Valdez GF, Rodriguez AV. Lactobacillus reuteri CRL 1098 and Lactobacillus acidophilus CRL 1014 differently reduce in vitro immunotoxic effect induced by Ochratoxin A. Food Chem Toxicol 2012; 50:4310-5. [PMID: 22975144 DOI: 10.1016/j.fct.2012.07.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 07/13/2012] [Accepted: 07/16/2012] [Indexed: 10/27/2022]
Abstract
Ochratoxin A (OTA) is a widespread mycotoxin contaminating several food products which causes detrimental health effects. The ability of Lactobacillus reuteri CRL 1098 and Lactobacillus acidophilus CRL 1014 to prevent OTA effects on TNF-α and IL-10 production and apoptosis induction in human peripheral blood mononuclear cells (PBMC) was investigated. Membrane rafts participation in these responses was also evaluated. L. reuteri reduced by 29% the OTA inhibition of TNF-α production whereas L. acidophilus increased 8 times the TNF-α production by OTA treated-PBMC. Also, both bacteria reversed apoptosis induced by OTA by 32%. However, neither of the bacteria reversed the OTA inhibition on IL-10 production. On the other hand, the lactobacilli were less effective to reverse OTA effects on disrupted-rafts PBMC. This study shows that two lactobacilli strains can reduce some negative OTA effects, being membrane rafts integrity necessary to obtain better results. Also, the results highlight the potential capacity of some lactobacilli strains usually included in natural dietary components in milk-derived products and cereals feed, to reduce OTA toxicity once ingested by humans or animals.
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Affiliation(s)
- Mónica A Mechoud
- Centro de Referencia para Lactobacilos (CERELA-CONICET), Chacabuco 145, T4000ILC Tucumán, Argentina.
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Gerez CL, Dallagnol A, Rollán G, Font de Valdez G. A combination of two lactic acid bacteria improves the hydrolysis of gliadin during wheat dough fermentation. Food Microbiol 2012; 32:427-30. [PMID: 22986210 DOI: 10.1016/j.fm.2012.06.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 01/09/2012] [Accepted: 06/26/2012] [Indexed: 01/28/2023]
Abstract
The evaluation of gliadin hydrolysis during dough fermentation by using two lactic acid bacteria, Lactobacillus plantarum CRL 775 and Pediococcus pentosaceus CRL 792, as pooled cell suspension (LAB) or cell free extract (CFE) was undertaken. The CFE pool produced a greater (121%) increase in amino acid concentration than the LAB pool (70-80%). These results were correlated with the decrease (76,100 and 64,300 ppm) in the gliadin concentration of doughs supplemented with CFE and LAB, respectively, compared to control doughs. The use of LAB peptidases seemed to be a viable technologic alternative to reduce the gliadin concentration in wheat dough without using living bacteria as starter.
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Affiliation(s)
- Carla Luciana Gerez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), Chacabuco 145, 4000 Tucumán, Argentina
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Bustos AY, Saavedra L, de Valdez GF, Raya RR, Taranto MP. Relationship between bile salt hydrolase activity, changes in the internal pH and tolerance to bile acids in lactic acid bacteria. Biotechnol Lett 2012; 34:1511-8. [DOI: 10.1007/s10529-012-0932-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 04/05/2012] [Indexed: 01/18/2023]
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Bedani R, Pauly-Silveira ND, Cano VSP, Valentini SR, Valdez GFD, Rossi EA. Effect of ingestion of soy yogurt on intestinal parameters of rats fed on a beef-based animal diet. Braz J Microbiol 2011. [DOI: 10.1590/s1517-83822011000300050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Bustos AY, Raya R, de Valdez GF, Taranto MP. Efflux of bile acids in Lactobacillus reuteri is mediated by ATP. Biotechnol Lett 2011; 33:2265-9. [PMID: 21744273 DOI: 10.1007/s10529-011-0696-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Accepted: 07/01/2011] [Indexed: 10/18/2022]
Abstract
PURPOSE OF WORK To study whether an active bile acid (BA) efflux occurs in Lactobacillus reuteri CRL 1098 as well as the nature (ATP or proton motive force [PMF] mediated primary transport) of the BA extrusion mechanism. BAs are powerful detergents which disorganize the lipid bilayer structure of cellular membranes. Specific bile resistance mechanisms (bile efflux, bile salt hydrolysis, and intrinsic architecture and composition of cell membrane the most prevalent) have been described in intestinal bacteria. L. reuteri, showed a significant degree of resistance to the toxic action of BA and the presence of an active efflux ATP-dependent of conjugated (taurocholic [TCA]) and free (cholic [CA]) BA in the CRL 1098 strain is now reported. However, due the high pKa (5.5) of cholic acid (CA) compared with the conjugated species, a significant fraction (between 35 and 50% at pH 6.5 and 5.2, respectively) of free BA also diffused passively, even in the absence of ATP. To our knowledge, our results represent the first evidence of ATP as the energy source involved in the BA extrusion in L. reuteri.
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Affiliation(s)
- Ana Yanina Bustos
- Centro de Referencia para Lactobacilos (CERELA-CONICET)-Chacabuco 145 (T4000ILC), San Miguel de Tucumán, Argentina
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Bustos AY, Raya R, Bru E, de Valdez GF, Taranto MP. Application of fluorescent techniques to evaluate the survival of probiotic lactobacilli to bile acid. Biotechnol Lett 2011; 33:1389-94. [DOI: 10.1007/s10529-011-0564-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Accepted: 02/07/2011] [Indexed: 10/18/2022]
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Pescuma M, Hébert EM, Mozzi F, Font de Valdez G. Functional fermented whey-based beverage using lactic acid bacteria. Int J Food Microbiol 2010; 141:73-81. [DOI: 10.1016/j.ijfoodmicro.2010.04.011] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Revised: 03/09/2010] [Accepted: 04/12/2010] [Indexed: 11/26/2022]
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Abstract
AIM: To investigate the potential therapeutic effect of exopolysaccharide (EPS)-producing Streptococcus thermophilus (S. thermophilus) CRL 1190 fermented milk on chronic gastritis in Balb/c mice.
METHODS: Balb/c mice were fed with the fermented milk for 7 d after inducing gastritis with acetyl-salicylic acid (ASA, 400 mg/kg body weight per day for 10 d). Omeprazole was included in this study as a positive therapeutic control. The gastric inflammatory activity was evaluated from gastric histology and inflammation score, number of interleukin-10 (IL-10), interferon-γ (INFγ) and tumor necrosis factor-α (TNF-α) cytokine-producing cells in the gastric mucosa, and thickness of the mucus layer.
RESULTS: Animals receiving treatment with the EPS-producing S. thermophilus CRL 1190 fermented milk showed a conserved gastric mucosa structure similar to that of healthy animals. Inflammation scores of the fermented milk-treated mice were lower than those of mice in the gastritis group (0.2 ± 0.03 vs 2.0 ± 0.6, P < 0.05). A marked decrease in INFγ+ (15 ± 1.0 vs 28 ± 1.2, P < 0.05) and TNF-α+ (16 ± 3.0 vs 33 ± 3.0, P < 0.05) cells and an increase in IL-10+ (28 ± 1.5 vs 14 ± 1.3, P < 0.05) cells compared to the gastritis group, was observed. Also, an increase in the thickness of the mucus gel layer (2.2 ± 0.6 vs 1.0 ± 0.3; 5.1 ± 0.8 vs 1.5 ± 0.4 in the corpus and antrum mucosa, respectively, P < 0.05) compared with the gastritis group was noted. A milk suspension of the purified EPS from S. thermophilus CRL1190 was also effective as therapy for gastritis.
CONCLUSION: This study suggests that fermented milk with S. thermophilus CRL 1190 and/or its EPS could be used in novel functional foods as an alternative natural therapy for chronic gastritis induced by ASA.
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Pescuma M, Hébert EM, Dalgalarrondo M, Haertlé T, Mozzi F, Chobert JM, Font de Valdez G. Effect of exopolysaccharides on the hydrolysis of beta-lactoglobulin by Lactobacillus acidophilus CRL 636 in an in vitro gastric/pancreatic system. J Agric Food Chem 2009; 57:5571-5577. [PMID: 19469473 DOI: 10.1021/jf9006505] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
An analysis of the peptides generated by hydrolysis of BLG by nonproliferating cells of the strain Lactobacillus acidophilus CRL 636 was carried out. The effect of polysaccharides (pectin, and two EPS synthesized by two Streptococcus thermophilus strains, EPS1190 and EPS804) on BLG digestibility using an in vitro gastric/pancreatic system was analyzed. Polysaccharides are commonly used in the dairy industry to improve food texture; these hydrocolloids may interact with proteins, affecting their digestibility. Nonproliferating cells of Lb. acidophilus CRL 636 were able to hydrolyze 52% of BLG. Twenty-six resulting peptides with molecular masses in the range 544-4119 Da were identified by LC-MS/MS. These peptides resulted mostly from the hydrolysis of the more accessible N-terminal part of BLG. Degradation of BLG by pepsin was poor (8%). When BLG was previously hydrolyzed by Lb. acidophilus CRL 636, peptic hydrolysis was of 54.8%, while when pectin and EPS1190 were added, hydrolysis was higher (58.2 and 57.2%, respectively). Peptides crossing 8 kDa dialysis membranes after trypsin/chymotrypsin hydrolysis were analyzed by HPSEC. The produced peptides were smaller when BLG was hydrolyzed previously by the Lb. acidophilus strain. Moreover, in the presence of pectin, the amount of the larger peptide (3.5 kDa) observed in the size exclusion chromatograms was considerably decreased. Our studies showed that prehydrolysis of BLG by Lb. acidophilus CRL 636 had a positive influence on BLG digestibility and that polysaccharides may change the peptide profile yielded by trypsin/chymotrypsin hydrolysis, releasing smaller size peptides, which are known to be less immune-reactive. Moreover, Lb. acidophilus CRL 636 was able to hydrolyze the main epitopes (41-60, 102-124, and 149-162) of BLG, reducing its allergenic content.
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Affiliation(s)
- Micaela Pescuma
- Centro de Referencia para Lactobacilos CONICET, San Miguel de Tucuman, Argentina
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De Bruyne K, Franz CMAP, Vancanneyt M, Schillinger U, Mozzi F, de Valdez GF, De Vuyst L, Vandamme P. Pediococcus argentinicus sp. nov. from Argentinean fermented wheat flour and identification of Pediococcus species by pheS, rpoA and atpA sequence analysis. Int J Syst Evol Microbiol 2009; 58:2909-16. [PMID: 19060081 DOI: 10.1099/ijs.0.65833-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-positive, small coccus-shaped lactic acid bacterium, strain LMG 23999(T), was isolated from Argentinean wheat flour. 16S rRNA gene sequence analysis revealed that the phylogenetic position of the novel strain was within the genus Pediococcus, with Pediococcus stilesii, Pediococcus pentosaceus and Pediococcus acidilactici as its closest relatives (97.7, 97.3 and 96.9 % gene sequence similarity, respectively). Fluorescent amplified fragment length polymorphism fingerprinting of whole genomes and whole-cell protein electrophoresis confirmed the unique taxonomic status of the novel strain. DNA-DNA hybridizations, DNA G+C content determination, comparative sequence analysis of the pheS, rpoA and atpA genes and physiological and biochemical characterization demonstrated that strain LMG 23999(T) (=CCUG 54535(T)=CRL 776(T)) represents a novel species for which the name Pediococcus argentinicus sp. nov. is proposed. Multi-locus sequence analysis based on pheS, rpoA and atpA genes was found to be a suitable method for the identification of species of the genus Pediococcus.
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Rossi EA, Cavallini DCU, Carlos IZ, Vendramini RC, Dâmaso AR, de Valdez GF. Intake of isoflavone-supplemented soy yogurt fermented with Enterococcus faecium lowers serum total cholesterol and non-HDL cholesterol of hypercholesterolemic rats. Eur Food Res Technol 2008. [DOI: 10.1007/s00217-008-0932-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Molina V, Medici M, Taranto MP, de Valdez GF. Effects of maternal vitamin B12deficiency from end of gestation to weaning on the growth and haematological and immunological parameters in mouse dams and offspring. Arch Anim Nutr 2008; 62:162-8. [DOI: 10.1080/17450390801892567] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Van der Meulen R, Grosu-Tudor S, Mozzi F, Vaningelgem F, Zamfir M, de Valdez GF, De Vuyst L. Screening of lactic acid bacteria isolates from dairy and cereal products for exopolysaccharide production and genes involved. Int J Food Microbiol 2007; 118:250-8. [PMID: 17716765 DOI: 10.1016/j.ijfoodmicro.2007.07.014] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Revised: 05/04/2007] [Accepted: 07/22/2007] [Indexed: 11/16/2022]
Abstract
A total of 174 lactic acid bacteria (LAB) strains isolated from dairy and cereal products were screened for the production of exopolysaccharides (EPS). Therefore, a rapid screening method was developed based on ultrafiltration and gel permeation chromatography. Furthermore, a screening through the polymerase chain reaction (PCR) was performed with primer pairs targeting different genes involved in EPS production. Nine isolates produced a homopolysaccharide of the glucan type, whereas only one strain produced a heteropolysaccharide. The production of a glucan by a strain of Lactococcus lactis and the production of a heteropolysaccharide by a strain of Lactobacillus curvatus are reported for the first time. The PCR screening revealed many positive strains. For three of the ten EPS-producing strains, no corresponding genes could be detected. Furthermore, a lot of strains possessed one or more eps genes but did not produce an EPS. Therefore, a screening on the molecular level should always be accompanied by another screening method that is able to distinguish true EPS producer strains from non-producing ones. Statistical analysis did not reveal any relationship between the type and origin of the strains, the presence or absence of a capsular polysaccharide or EPS, and the presence or absence of eps genes.
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Affiliation(s)
- Roel Van der Meulen
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Department of Applied Biological Sciences and Engineering, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
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Mozzi F, Vaningelgem F, Hébert EM, Van der Meulen R, Foulquié Moreno MR, Font de Valdez G, De Vuyst L. Diversity of heteropolysaccharide-producing lactic acid bacterium strains and their biopolymers. Appl Environ Microbiol 2006; 72:4431-5. [PMID: 16751563 PMCID: PMC1489642 DOI: 10.1128/aem.02780-05] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Thirty-one lactic acid bacterial strains from different species were evaluated for exopolysaccharide (EPS) production in milk. Thermophilic strains produced more EPS than mesophilic ones, but EPS yields were generally low. Ropiness or capsular polysaccharide formation was strain dependent. Six strains produced high-molecular-mass EPS. Polymers were classified into nine groups on the basis of their monomer composition. EPS from Enterococcus strains were isolated and characterized.
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Affiliation(s)
- Fernanda Mozzi
- Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, 4000 San Miguel de Tucumán, Tucumán, Argentina.
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Bedani R, Rossi EA, Lepera JS, Wang CC, de Valdez GF. [Effect of a novel soy fermented product enriched with isoflavones and calcium on bone tissue of rats]. Arch Latinoam Nutr 2006; 56:146-52. [PMID: 17024959] [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] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The objective was to evaluate the effect of soy fermented product intake on the corporal weight and bone tissue of ovariectomized mature rats. This product was fermented with Enterococcus faecium and Lactobacillus jugurti and enriched with isoflavones and calcium. The animals were divided in 5 groups: sham-ovariectomized; ovariectomized; ovariectomized treated with soy fermented product enriched with isoflavones and calcium; ovariectomized treated with soy fermented product enriched with calcium and ovariectomized treated with non-fermented product enriched only with calcium. In order to evaluate the effect of the tested product on bone tissue (femur and tibia), the following parameters were analyzed: length; mechanical assay of three points; density (Archimedes principle); mineral content; calcium content; measure of the trabecular widths. The corporal weight of group treated with soy fermented product containing isoflavones and calcium showed no statistical difference from sham-ovariectomized group and trabecular widths tended to have larger than ovariectomized group. However, there was no significant difference to the other evaluated parameters in result of the diverse treatments. Thus, soy fermented product enriched with isoflavones and calcium inhibited the increasing of corporal weight caused by ovariectomy and revealed a tendency to trabecular protection after castration.
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Affiliation(s)
- Raquel Bedani
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, Araraquara, SP, Brasil
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Saavedra L, Pía Taranto M, Sesma F, Font de Valdez G. Erratum to “Home-made traditional cheeses for the isolation of probiotic Enterococcus faecium strains” [Int. J. Food Microbiol. 88 (2003) 241–245]. Int J Food Microbiol 2004. [DOI: 10.1016/j.ijfoodmicro.2004.09.001] [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: 10/26/2022]
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Abstract
One hundred twenty-two strains of Enterococcus faecium isolated from Tafí Cheese, a homemade traditional cheese of the highlands in the province of Tucumán, Argentina, were evaluated for their potential application as starter cultures in the manufacture of this traditional cheese. Eleven of the 122 strains showing limited delays in growth in oxgall were selected for the study of bile salts hydrolase activity (BSH), cholesterol reduction, antimicrobial activity, and virulence determinants. Nine strains were able to remove cholesterol in in vitro assays, a property that was closely related to the bile salt hydrolase activity. Only two strains produced active bacteriocins against Listeria strains although genetic evidence for the bacteriocin structural gene was found in six other enterococci strains. No virulence factors were detected in any of the 11 selected strains of enterococci.
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Affiliation(s)
- Lucila Saavedra
- Centro de Referencia para Lactobacilos-CONICET, Chacabuco 145, 4000 SM de Tucumán, Tucumán, Argentina
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Rossi EA, Vendramini RC, Carlos IZ, de Oliveira MG, de Valdez GF. [Effect of a new fermented soy milk product on serum lipid levels in normocholesterolemic adult men]. Arch Latinoam Nutr 2003; 53:47-51. [PMID: 12942871] [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] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
This study was undertaken to verify the effect of a daily intake of a new fermented soy milk produced with Enterococcus faecium and Lactobacillus jugurti on the serum lipid levels in normocholesterolemic middle-aged men. The study was randomized, double-blind and placebo-controlled and was performed for a period of 6 weeks. Forty-four normocholesterolemic healthy, male volunteers, aged 40-55 years old were randomly separated in two groups: The F-group received 200 ml of the fermented product daily and the P-group received 200 ml of placebo (chemically fermented). The blood samples were drawn initially and after 3 and 6 weeks and serum values for total cholesterol, HDL-cholesterol and triglyceride were determined. The LDL-cholesterol value was estimated. No significant changes in the fermented group (F) were observed for total cholesterol, LDL-cholesterol or triglyceride levels, while the HDL-cholesterol level was significantly higher (p < or = 0.05) after 6 weeks. The total cholesterol and LDL-cholesterol levels were significantly higher (p < or = 0.05) in the placebo group (P), but no changes were found for the HDL-cholesterol and triglyceride levels during the experimental period. In conclusion, the intake of 200 ml/day of the fermented soy milk, produced with E. faecium and L. jugurti, for 6 weeks, did not affect the serum total cholesterol and LDL-cholesterol, and led an increase of 10% in the HDL-cholesterol level.
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Affiliation(s)
- Elizeu Antonio Rossi
- Departamento de Alimentos e Nutrição, Faculdade de Ciências Farmacêuticas-UNESP-Araraquara, Brasil
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Lorca GL, Font de Valdez G, Ljungh A. Characterization of the protein-synthesis dependent adaptive acid tolerance response in Lactobacillus acidophilus. J Mol Microbiol Biotechnol 2002; 4:525-32. [PMID: 12432952] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
Abstract
Exposure of L. acidophilus CRL 639 cells to sublethal adaptive acid conditions (pH 5.0 for 60 min) was found to confer protection against subsequent exposure to lethal pH (pH 3.0). Adaptation, which only occurred in complex media, was dependent on de novo protein synthesis and was inhibited by amino acid analogues. There was no modification in the protein synthesis rate during adaptation, but the protein degradation rate decreased. Synthesis of acid stress proteins may increase the stability of pre-existing proteins. By 2D-PAGE, induction of nine acid stress proteins and repression of several housekeeping proteins was observed. Putative heat shock proteins DnaK, DnaJ, GrpE, GroES and GroEL (70, 43, 24, 10 and 55 kDa, respectively) were among the proteins whose synthesis was induced in response to acid adaptation.
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Affiliation(s)
- Graciela L Lorca
- Centro de Referencia para Lactobacilos, CONICET, Tucumán, Argentina.
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Lorca G, Torino MI, Font de Valdez G, Ljungh A A. Lactobacilli express cell surface proteins which mediate binding of immobilized collagen and fibronectin. FEMS Microbiol Lett 2002; 206:31-7. [PMID: 11786253 DOI: 10.1111/j.1574-6968.2002.tb10982.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Binding of immobilized collagen-I (Cn-I) and fibronectin (Fn) by Lactobacillus acidophilus CRL 639 depends on cell-surface proteins. Capsule formation during the stationary growth phase has a negative effect on adherence of Cn-I and Fn. However, cells from the exponential growth phase, which produce no capsule, exhibit maximal binding. Binding is sensitive to trypsin, proteinase K, pronase E, and heat. Gelatin and soluble Cn-I partially inhibit binding of Cn-I although various proteins, sugars and amino acids do not affect binding to Fn. These results indicate that protein-protein interactions mediate adhesion to extracellular matrix proteins. SDS-PAGE and Western blot analyses of surface proteins revealed that several proteins including the major 43-kDa protein of the S-layer are expressed. Monoclonal antibodies showed that Fn binds to a 15-kDa protein, while Cn-I binds to proteins of 45 and 58 kDa.
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Affiliation(s)
- Graciela Lorca
- Centro de Referencia para Lactobacilos (CERELA, CONICET), Tucmán, Argentina.
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Abstract
The presence of an anomalous orange-reddish coloration in Roquefort cheese during its ripening period was studied. No pigmented colonies were isolated from milk, curd, or cheeses after pressing, but their presence in relatively large numbers was observed after salting (7 d) up to the end of the ripening process (90 d). About 37% of the strains isolated (32 in all) were orange-pigment producers in light as well as in the dark (type I), whereas about 25% produced an orange coloration only in the light (type II). No production of pigment was observed at pH 6.0 or below in the absence of sodium chloride, and the highest color intensity was registered at pH 7.0 in the presence of sodium chloride. Morphological and physiologic studies of the orange-pigmented strains revealed that most of them were closely related to Brevibacterium linens .
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Affiliation(s)
- Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, 4000 Tucumán, Argentina and Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Graciela Savoy de Giori
- Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, 4000 Tucumán, Argentina and Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Aida Pesce de Ruiz Holgado
- Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, 4000 Tucumán, Argentina and Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Guillermo Oliver
- Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, 4000 Tucumán, Argentina and Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
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