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Araoz M, Grillo-Puertas M, de Moreno de LeBlanc A, Hebert EM, Villegas JM, Rapisarda VA. Inorganic phosphate modifies stationary phase fitness and metabolic pathways in Lactiplantibacillus paraplantarum CRL 1905. Front Microbiol 2024; 15:1343541. [PMID: 38476941 PMCID: PMC10927959 DOI: 10.3389/fmicb.2024.1343541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 01/19/2024] [Indexed: 03/14/2024] Open
Abstract
Inorganic phosphate (Pi) concentration modulates polyphosphate (polyP) levels in diverse bacteria, affecting their physiology and survival. Lactiplantibacillus paraplantarum CRL 1905 is a lactic acid bacterium isolated from quinoa sourdough with biotechnological potential as starter, for initiating fermentation processes in food, and as antimicrobial-producing organism. The aim of this work was to evaluate the influence of the environmental Pi concentration on different physiological and molecular aspects of the CRL 1905 strain. Cells grown in a chemically defined medium containing high Pi (CDM + P) maintained elevated polyP levels up to late stationary phase and showed an enhanced bacterial survival and tolerance to oxidative stress. In Pi sufficiency condition (CDM-P), cells were ~ 25% longer than those grown in CDM + P, presented membrane vesicles and a ~ 3-fold higher capacity to form biofilm. Proteomic analysis indicated that proteins involved in the "carbohydrate transport and metabolism" and "energy production and conversion" categories were up-regulated in high Pi stationary phase cells, implying an active metabolism in this condition. On the other hand, stress-related chaperones and enzymes involved in cell surface modification were up-regulated in the CDM-P medium. Our results provide new insights to understand the CRL 1905 adaptations in response to differential Pi conditions. The adjustment of environmental Pi concentration constitutes a simple strategy to improve the cellular fitness of L. paraplantarum CRL 1905, which would benefit its potential as a microbial cell factory.
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Affiliation(s)
- Mario Araoz
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET-UNT, and Instituto de Química Biológica, “Dr. Bernabé Bloj”, Facultad de Bioquímica, Química y Farmacia, UNT, San Miguel de Tucumán, Argentina
| | - Mariana Grillo-Puertas
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET-UNT, and Instituto de Química Biológica, “Dr. Bernabé Bloj”, Facultad de Bioquímica, Química y Farmacia, UNT, San Miguel de Tucumán, Argentina
| | | | - Elvira María Hebert
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Argentina
| | - Josefina María Villegas
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET-UNT, and Instituto de Química Biológica, “Dr. Bernabé Bloj”, Facultad de Bioquímica, Química y Farmacia, UNT, San Miguel de Tucumán, Argentina
| | - Viviana Andrea Rapisarda
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET-UNT, and Instituto de Química Biológica, “Dr. Bernabé Bloj”, Facultad de Bioquímica, Química y Farmacia, UNT, San Miguel de Tucumán, Argentina
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2
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Reyes-Castillo PA, González-Vázquez R, Torres-Maravilla E, Bautista-Hernández JI, Zúñiga-León E, Leyte-Lugo M, Mateos-Sánchez L, Mendoza-Pérez F, Gutiérrez-Nava MA, Reyes-Pavón D, Azaola-Espinosa A, Mayorga-Reyes L. Bifidobacterium longum LBUX23 Isolated from Feces of a Newborn; Potential Probiotic Properties and Genomic Characterization. Microorganisms 2023; 11:1648. [PMID: 37512821 PMCID: PMC10385183 DOI: 10.3390/microorganisms11071648] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/17/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
Bifidobacterium longum is considered a microorganism with probiotic potential, which has been extensively studied, but these probiotic effects are strain dependent. This work aims to characterize the probiotic potential, based on the biochemical and genomic functionality, of B. longum LBUX23, isolated from neonates' feces. B. longum LBUX23 contains one circular genome of 2,287,838 bp with a G+C content of 60.05%, no plasmids, no CRISPR-Cas operon, possesses 56 tRNAs, 9 rRNAs, 1 tmRNA and 1776 coding sequences (CDSs). It has chromosomally encoded resistance genes to ampicillin and dicloxacillin, non-hemolytic activity, and moderate inhibition of Escherichia coli ATCC 25922 and to some emergent pathogen's clinical strains. B. longum LBUX23 was able to utilize lactose, sucrose, fructooligosaccharides (FOS), and lactulose. The maximum peak of bacterial growth was observed in sucrose and FOS at 6 h; in lactose and lactulose, it was shown at 8 h. B. longum LBUX23 can survive in gastrointestinal conditions (pH 4 to 7). A decrease in survival (96.5 and 93.8%) was observed at pH 3 and 3.5 during 120 min. argC, argH, and dapA genes could be involved in this tolerance. B. longum LBUX23 can also survive under primary and secondary glyco- or tauro-conjugated bile salts, and a mixture of bile salts due to the high extracellular bile salt hydrolase (BSH) activity (67.3 %), in taurocholic acid followed by taurodeoxycholic acid (48.5%), glycocholic acid (47.1%), oxgall (44.3%), and glycodeoxycholic acid (29.7%) probably due to the presence of the cbh and gnlE genes which form an operon (start: 119573 and end: 123812). Low BSH activity was determined intracellularly (<7%), particularly in glycocholic acid; no intracellular activity was shown. B. longum LBUX23 showed antioxidant effects in DPPH radical, mainly in intact cells (27.4%). In the case of hydroxyl radical scavenging capacity, cell debris showed the highest reduction (72.5%). In the cell-free extract, superoxide anion radical scavenging capacity was higher (90.5%). The genome of B. longum LBUX23 contains PNPOx, AhpC, Bcp, trxA, and trxB genes, which could be involved in this activity. Regarding adherence, it showed adherence up to 5% to Caco-2 cells. B. longum LBUX23 showed in vitro potential probiotic properties, mainly in BSH activity and antioxidant capacity, which indicates that it could be a good candidate for antioxidant or anti-cholesterol tests using in vivo models.
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Affiliation(s)
- Pedro A Reyes-Castillo
- Doctorado en Ciencias Biologicas y de la Salud, Universidad Autonoma Metropolitana, Unidad Xochimilco, Ciudad de Mexico 04960, Mexico
| | - Raquel González-Vázquez
- Laboratorio de Biotecnologia, Departamento de Sistemas Biologicos, CONAHCYT-Universidad Autónoma Metropolitana, Unidad Xochimilco, Ciudad de Mexico 04960, Mexico
| | - Edgar Torres-Maravilla
- Facultad de Medicina Mexicali, Universidad Autonoma de Baja California, Mexicali 21000, Mexico
| | - Jessica I Bautista-Hernández
- Laboratorio de Biotecnologia, Departamento de Sistemas Biologicos, Universidad Autonoma Metropolitana, Unidad Xochimilco, Ciudad de Mexico 04960, Mexico
| | - Eduardo Zúñiga-León
- Centro de Investigación en Recursos Bioticos, Facultad de Ciencias, Universidad Autonoma del Estado de Mexico, Carretera Toluca-Ixtlahuaca Km 14.5, San Cayetano, Toluca 50295, Mexico
| | - Martha Leyte-Lugo
- Laboratorio de Biotecnologia, Departamento de Sistemas Biologicos, CONAHCYT-Universidad Autónoma Metropolitana, Unidad Xochimilco, Ciudad de Mexico 04960, Mexico
| | - Leovigildo Mateos-Sánchez
- Unidad de Cuidados Intensivos de Neonatos, Unidad Medica de Alta Especialidad, Hospital Gineco Obstetricia No. 4 "Luis Castelazo Ayala", Instituto Mexicano del Seguro Social, Ciudad de Mexico 01090, Mexico
| | - Felipe Mendoza-Pérez
- Laboratorio de Biotecnologia, Departamento de Sistemas Biologicos, Universidad Autonoma Metropolitana, Unidad Xochimilco, Ciudad de Mexico 04960, Mexico
| | - María Angélica Gutiérrez-Nava
- Laboratorio de Ecologia Microbiana, Departamento de Sistemas Biologicos, Universidad Autonoma Metropolitana, Unidad Xochimilco, Ciudad de Mexico 04960, Mexico
| | - Diana Reyes-Pavón
- Facultad de Medicina Mexicali, Universidad Autonoma de Baja California, Mexicali 21000, Mexico
| | - Alejandro Azaola-Espinosa
- Laboratorio de Biotecnologia, Departamento de Sistemas Biologicos, Universidad Autonoma Metropolitana, Unidad Xochimilco, Ciudad de Mexico 04960, Mexico
| | - Lino Mayorga-Reyes
- Laboratorio de Biotecnologia, Departamento de Sistemas Biologicos, Universidad Autonoma Metropolitana, Unidad Xochimilco, Ciudad de Mexico 04960, Mexico
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Kristof I, Ledesma SC, Apud GR, Vera NR, Aredes Fernández PA. Oenococcus oeni allows the increase of antihypertensive and antioxidant activities in apple cider. Heliyon 2023; 9:e16806. [PMID: 37332959 PMCID: PMC10272325 DOI: 10.1016/j.heliyon.2023.e16806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/22/2023] [Accepted: 05/29/2023] [Indexed: 06/20/2023] Open
Abstract
This study aimed to investigate the impact of the malolactic fermentation (MLF) carried out by Oenococcus oeni on antihypertensive and antioxidant activities in cider. The MLF was induced using three strains of O. oeni. The modification in phenolic compounds (PCs) and nitrogen organic compounds, antioxidant, and antihypertensive activities were determined after MLF. Among the 17 PCs analyzed caffeic acid was the most abundant compound and phloretin, (-)-epicatechin, and myricetin were detected only in malolactic ciders, however, (-)-epigallocatechin was not detected after MLF. The evaluation of nitrogen organic compounds revealed a drop in total protein concentration (from 17.58 to 14.00 mg N/L) concomitantly with a significant release of peptide nitrogen (from 0.31 to a maximum value of 0.80 mg N/L) after MLF. In addition, an extracellular proteolytic activity was evidenced in all MLF supernatants. The FRAP activity increased reaching a maximum of 120.9 μmol FeSO4/mL and the ABTS radical-scavenging activity increased until 6.8 mmol ascorbic acid/L. Moreover, the angiotensin I-converting enzyme inhibitory activity reached a maximum value of 39.8%. The MLF conducted by O. oeni in ciders enables the increase of interesting biological activities and this finding could constitute a valuable tool to add value to final product.
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Affiliation(s)
- Irina Kristof
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Ayacucho 491, 4000, Tucumán, Argentina
| | - Silvana Cecilia Ledesma
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Ayacucho 491, 4000, Tucumán, Argentina
| | - Gisselle Raquel Apud
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Ayacucho 491, 4000, Tucumán, Argentina
| | - Nancy Roxana Vera
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Ayacucho 491, 4000, Tucumán, Argentina
| | - Pedro Adrián Aredes Fernández
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Ayacucho 491, 4000, Tucumán, Argentina
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Antioxidant activity of environmental lactic acid bacteria strains isolated from organic raw fermented meat products. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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5
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González-Vázquez R, Zúñiga-León E, Torres-Maravilla E, Leyte-Lugo M, Mendoza-Pérez F, Hernández-Delgado NC, Pérez-Pastén-Borja R, Azaola-Espinosa A, Mayorga-Reyes L. Genomic and Biochemical Characterization of Bifidobacterium pseudocatenulatum JCLA3 Isolated from Human Intestine. Microorganisms 2022; 10:2100. [PMID: 36363691 PMCID: PMC9695335 DOI: 10.3390/microorganisms10112100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 07/30/2023] Open
Abstract
Bifidobacteria have been investigated due to their mutualistic microbe-host interaction with humans throughout their life. This work aims to make a biochemical and genomic characterization of Bifidobacterium pseudocatenulatum JCLA3. By multilocus analysis, the species of B. pseudocatenulatum JCLA3 was established as pseudocatenulatum. It contains one circular genome of 2,369,863 bp with G + C content of 56.6%, no plasmids, 1937 CDSs, 54 tRNAs, 16 rRNAs, 1 tmRNA, 1 CRISPR region, and 401 operons predicted, including a CRISPR-Cas operon; it encodes an extensive number of enzymes, which allows it to utilize different carbohydrates. The ack gene was found as part of an operon formed by xfp and pta genes. Two genes of ldh were found at different positions. Chromosomally encoded resistance to ampicillin and cephalothin, non-hemolytic activity, and moderate inhibition of Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 6538 were demonstrated by B. pseudocatenulatum JCLA3; it can survive 100% in simulated saliva, can tolerate primary and secondary glyco- or tauro-conjugated bile salts but not in a mix of bile; the strain did not survive at pH 1.5-5. The cbh gene coding to choloylglycine hydrolase was identified in its genome, which could be related to the ability to deconjugate secondary bile salts. Intact cells showed twice as much antioxidant activity than debris. B. pseudocatenulatum JCLA3 showed 49% of adhesion to Caco-2 cells. The genome and biochemical analysis help to elucidate further possible biotechnological applications of B. pseudocatenulatum JCLA3.
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Affiliation(s)
- Raquel González-Vázquez
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Unidad Xochimilco, CONACYT-Universidad Autónoma Metropolitana, Ciudad de Mexico 1100, Mexico
| | - Eduardo Zúñiga-León
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Unidad Xochimilco, Universidad Autónoma Metropolitana, Ciudad de Mexico 1100, Mexico
| | - Edgar Torres-Maravilla
- INRAE, AgroPArisTEch, Micalis Institute, Université Paris-Saclay, 78350 Jouy-en Josas, France
| | - Martha Leyte-Lugo
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Unidad Xochimilco, CONACYT-Universidad Autónoma Metropolitana, Ciudad de Mexico 1100, Mexico
| | - Felipe Mendoza-Pérez
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Unidad Xochimilco, Universidad Autónoma Metropolitana, Ciudad de Mexico 1100, Mexico
| | - Natalia C. Hernández-Delgado
- Laboratorio de Toxicología Molecular y Celular, Escuela Nacional de Ciencias Biológicas-Campus Zacatenco, Instituto Politécnico Nacional, Ciudad de Mexico 07738, Mexico
| | - Ricardo Pérez-Pastén-Borja
- Laboratorio de Toxicología Molecular y Celular, Escuela Nacional de Ciencias Biológicas-Campus Zacatenco, Instituto Politécnico Nacional, Ciudad de Mexico 07738, Mexico
| | - Alejandro Azaola-Espinosa
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Unidad Xochimilco, Universidad Autónoma Metropolitana, Ciudad de Mexico 1100, Mexico
| | - Lino Mayorga-Reyes
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Unidad Xochimilco, Universidad Autónoma Metropolitana, Ciudad de Mexico 1100, Mexico
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Lacticaseibacillus rhamnosus: A Suitable Candidate for the Construction of Novel Bioengineered Probiotic Strains for Targeted Pathogen Control. Foods 2022; 11:foods11060785. [PMID: 35327208 PMCID: PMC8947445 DOI: 10.3390/foods11060785] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 12/12/2022] Open
Abstract
Probiotics, with their associated beneficial effects, have gained popularity for the control of foodborne pathogens. Various sources are explored with the intent to isolate novel robust probiotic strains with a broad range of health benefits due to, among other mechanisms, the production of an array of antimicrobial compounds. One of the shortcomings of these wild-type probiotics is their non-specificity. A pursuit to circumvent this limitation led to the advent of the field of pathobiotechnology. In this discipline, specific pathogen gene(s) are cloned and expressed into a given probiotic to yield a novel pathogen-specific strain. The resultant recombinant probiotic strain will exhibit enhanced species-specific inhibition of the pathogen and its associated infection. Such probiotics are also used as vehicles to deliver therapeutic agents. As fascinating as this approach is, coupled with the availability of numerous probiotics, it brings a challenge with regard to deciding which of the probiotics to use. Nonetheless, it is indisputable that an ideal candidate must fulfil the probiotic selection criteria. This review aims to show how Lacticaseibacillus rhamnosus, a clinically best-studied probiotic, presents as such a candidate. The objective is to spark researchers’ interest to conduct further probiotic-engineering studies using L. rhamnosus, with prospects for the successful development of novel probiotic strains with enhanced beneficial attributes.
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Cosme F, Inês A, Vilela A. Consumer's acceptability and health consciousness of probiotic and prebiotic of non-dairy products. Food Res Int 2022; 151:110842. [PMID: 34980381 DOI: 10.1016/j.foodres.2021.110842] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/01/2021] [Accepted: 11/27/2021] [Indexed: 12/12/2022]
Abstract
Human gut microbiota is a protective agent of intestinal and systemic health, and its modulation is of great interest for human wellbeing. In the world of biotics, besides probiotics, prebiotics, and synbiotics, also appears the denomination of "postbiotics" and "psychobiotics". Fermented dairy products are, traditionally, the major source of probiotics. Nevertheless, due to the increasing number of lactose-intolerant individuals and strict vegetarians, there is a need for innovative non-dairy products. Non-dairy biotics are being included in the normal diet and due to technological advances, many products are created using non-conventional food matrices like kombucha tea, herbal tea, baking mix, and cereal-based products. The microorganisms most used as probiotics in many of the non-dairy products are strains belonging to the genera Bifidobacterium, Enterococcus, Lactobacillus, Lactococcus, Streptococcus, and Bacillus, and some yeast strains namely Saccharomyces cerevisiae var. boulardii. Recently, several other yeasts have been described as having probiotic properties. This review describes gut-derived effects in humans of possible microorganisms, such as yeasts, and bacteria, isolated from non-dairy fermented and non-fermented foods and beverages. The microorganisms responsible for the processing of these non-dairy fermented products, together with the prebiotics, form a class of nutrients that have been proven to be beneficial for our gut health.
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Affiliation(s)
- Fernanda Cosme
- Chemistry Research Centre-Vila Real (CQ-VR), Dep. of Biology and Environment, School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - António Inês
- Chemistry Research Centre-Vila Real (CQ-VR), Dep. of Biology and Environment, School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Alice Vilela
- Chemistry Research Centre-Vila Real (CQ-VR), Dep. of Biology and Environment, School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
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Hu K, Zhao H, Kang X, Ge X, Zheng M, Hu Z, Tao Y. Fruity aroma modifications in Merlot wines during simultaneous alcoholic and malolactic fermentations through mixed culture of S. cerevisiae, P. fermentans, and L. brevis. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112711] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Antioxidant and Anti-Inflammatory Properties of Probiotic Candidate Strains Isolated during Fermentation of Agave ( Agave angustifolia Haw). Microorganisms 2021; 9:microorganisms9051063. [PMID: 34069080 PMCID: PMC8156479 DOI: 10.3390/microorganisms9051063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/06/2021] [Accepted: 05/08/2021] [Indexed: 12/21/2022] Open
Abstract
Agave species are a source of diverse products for human use, such as food, fiber, and beverages, which include mezcal, a distilled beverage produced by spontaneous fermentation. Agave is an excellent source of high amounts of sugars, minerals, and phenolic compounds, which favor the growth of lactic acid bacteria (LAB) and yeast communities. In this work, 20 promising LAB strains with probiotic characteristics were isolated from the agave fermentation stage in mezcal production. The strains belonged to Lactobacillus plantarum (15), Lactobacillus rhamnosus (2), Enterococcus faecium (2), and Lactococcus lactis (1). These isolates were characterized for their resistance under gastrointestinal conditions, such as lysozyme, acid pH, and bile salts. In addition, the adherence of these LABs to human intestinal epithelial cells (Caco-2 and HT-29 cells) was tested in vitro and their antioxidant and immunomodulatory profile was determined using cellular models. Lactobacillus rhamnosus LM07 and Lactobacillus plantarum LM17 and LM19 strains were selected for their antioxidant properties, and their capacities in an oxidative stress model in intestinal epithelial cells IECs (Caco-2 and HT-29 cells) in the presence of hydrogen peroxide were evaluated. Interestingly, Lactobacillus rhamnosus LM07 and Lactobacillus plantarum LM17 and LM19 strains showed anti-inflammatory properties in TNF-α-stimulated HT-29 cells. Subsequently, bacterial strains exhibiting antioxidant and anti-inflammatory properties were tested in vivo in a mouse model with dinitrobenzene sulfonic acid (DNBS)-induced chronic colitis. Weight loss, intestinal permeability, and cytokine profiles were measured in mice as indicators of inflammation. One of the selected strains, Lactobacillus plantarum LM17, improved the health of the mice, as observed by reduced weight loss, and significantly decreased intestinal permeability. Altogether, our results demonstrate the potential of LAB (and lactobacilli in particular) isolated from the agave fermentation stage in mezcal production. Lactobacillus rhamnosus LM07 and Lactobacillus plantarum LM17 strains represent potential candidates for developing new probiotic supplements to treat inflammatory bowel disease (IBD).
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Abstract
Probiotics and prebiotics are microbiota-management instruments for improving human health once they may be beneficial for maintaining a healthy community of gut microbiota and bowel function. Probiotic’s main target is the gut, via the gastrointestinal tract, although direct application to other body zones such as the vaginal tract, the oral cavity, and skin have been studied. The major source of probiotics is fermented dairy products, however, currently, there is a need for novel and non-dairy probiotics, due to the increasing number of lactose-intolerant persons in the world population, tied with the adverse effect of cholesterol contained in fermented dairy foods as well as the increasing number of strict vegetarians. In this review, we describe gut-derived effects in humans of possible microorganisms isolated from wine, such as Saccharomyces and non-Saccharomyces yeasts and bacteria, and other non-dairy fermented beverages. Those microorganisms can be grown and consumed as recommended probiotics, moreover, wine, and other beverages may also be a source of prebiotics such as polyphenols.
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Lin D, Jiang X, Zhao Y, Zhai X, Yang X. Komagataeibacter hansenii CGMCC 3917 alleviates alcohol-induced liver injury by regulating fatty acid metabolism and intestinal microbiota diversity in mice. Food Funct 2020; 11:4591-4604. [PMID: 32432239 DOI: 10.1039/c9fo02040c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The potential effects of Komagataeibacter hansenii CGMCC 3917 cells on alcohol-induced liver injury and their probable mechanisms were investigated. Male Kunming mice were orally administered with alcohol (10 mL per kg BW) alone or in combination with administration of K. hansenii CGMCC 3917 cells at 2 × 108 and 2 × 106 CFUs for 10 weeks. Administration of strain CGMCC 3917 cells, especially high dose administration, decreased the liver weights, fat gain, and fatty-acid metabolism-related enzyme SCD-1, ACC and FAS expressions and endotoxin release, which were elevated by alcohol treatment. Furthermore, the total contents of long chain fatty acids of the liver and serum in alcohol-treated mice supplemented with a high dose of strain CGMCC 3917 cells were decreased to 5.44 ± 0.19 μg mL-1 and 3.66 ± 0.15 μg mL-1 from 6.65 ± 0.31 μg mL-1 and 4.52 ± 0.21 μg mL-1, respectively. Conversely, the SCFAs decreased by ethanol treatment, particularly the acetic acid, propionic acid and butyric acid, were obviously enhanced in the faeces, colon and cecum of the mice supplemented with strain CGMCC 3917 cells. Moreover, strain CGMCC 3917 cells could regulate gut microbiome by significantly decreasing the abundance of Actinobacteria, Proteobacteria and Firmicutes, and dramatically increasing the abundance of Bacteroidetes in alcohol-treated mice. These findings suggest that K. hansenii CGMCC 3917 cells alleviate alcohol-induced liver damage via regulating fatty acid metabolism and intestinal microbiota diversity in mice.
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Affiliation(s)
- Dehui Lin
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China.
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Transcriptional Regulator AcrR Increases Ethanol Tolerance through Regulation of Fatty Acid Synthesis in Lactobacillus plantarum. Appl Environ Microbiol 2019; 85:AEM.01690-19. [PMID: 31519657 DOI: 10.1128/aem.01690-19] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 09/11/2019] [Indexed: 01/24/2023] Open
Abstract
Lactobacillus plantarum is a versatile bacterium with significant adaptability to harsh habitats containing excessive ethanol concentrations. It was found that the L. plantarum NF92-TetR/AcrR family regulator, AcrR, significantly enhanced the growth rate of this lactic acid bacterium in the presence of ethanol. Through screening 172 ethanol-resistant related genes by electrophoretic mobility shift and quantitative reverse transcription-PCR (RT-qPCR) assays, six genes were identified to be regulated by AcrR under ethanol stress. Among these was a gene coding for a 3-hydroxyacyl-ACP dehydratase (fabZ1) regulated by AcrR under ethanol stress. AcrR regulated fabZ1 under ethanol stress by binding to its promoter, P fabZ1 DNase I footprinting analysis indicated that there were two specific AcrR binding sites on P fabZ1 RT-PCR results showed fabZ1 could cotranscribe with its downstream 12 genes and conform a fatty acid de novo biosynthesis (fab) gene cluster under the control of P fabZ1 Both RT-qPCR of the fab gene cluster in acrR knockout and overexpression strains and fatty acid methyl ester analysis of the acrR knockout strain showed that AcrR could promote fatty acid synthesis in L. plantarum NF92. Membrane fluorescence anisotropy analysis of acrR knockout and overexpression strains showed that AcrR could increase membrane fluidity under ethanol stress. Thus, AcrR could regulate fatty acid synthesis and membrane fluidity to promote the adaption of L. plantarum NF92 to a high ethanol concentration.IMPORTANCE Ethanol tolerance is essential for L. plantarum strains living in substances with more than 9% ethanol, such as wine and beer. The details regarding how L. plantarum adapts to ethanol are still lacking. This study demonstrates that AcrR regulates the de novo synthesis of fatty acids in L. plantarum adapting to toxic levels of ethanol. We also identified the ability of the TetR/AcrR family regulator to bind to the fatty acid biosynthesis gene promoter, P fabZ1 , in L. plantarum and defined the binding sites. This finding facilitates the induction of the adaptation of L. plantarum strains to ethanol for food fermentation applications.
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Molina‐Menor E, Tanner K, Vidal‐Verdú À, Peretó J, Porcar M. Microbial communities of the Mediterranean rocky shore: ecology and biotechnological potential of the sea-land transition. Microb Biotechnol 2019; 12:1359-1370. [PMID: 31562755 PMCID: PMC6801134 DOI: 10.1111/1751-7915.13475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 12/29/2022] Open
Abstract
Microbial communities from harsh environments hold great promise as sources of biotechnologically relevant strains and compounds. In the present work, we have characterized the microorganisms from the supralittoral and splash zone in three different rocky locations of the Western Mediterranean coast, a tough environment characterized by high levels of irradiation and large temperature and salinity fluctuations. We have retrieved a complete view of the ecology and functional aspects of these communities and assessed the biotechnological potential of the cultivable microorganisms. All three locations displayed very similar taxonomic profiles, with the genus Rubrobacter and the families Xenococcaceae, Flammeovirgaceae, Phyllobacteriaceae, Rhodobacteraceae and Trueperaceae being the most abundant taxa; and Ascomycota and halotolerant archaea as members of the eukaryotic and archaeal community respectively. In parallel, the culture-dependent approach yielded a 100-isolates collection, out of which 12 displayed high antioxidant activities, as evidenced by two in vitro (hydrogen peroxide and DPPH) and confirmed in vivo with Caenorhabditis elegans assays, in which two isolates, CR22 and CR24, resulted in extended survival rates of the nematodes. This work is the first complete characterization of the Mediterranean splash-zone coastal microbiome, and our results indicate that this microbial niche is home of an extremophilic community that holds biotechnological potential.
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Affiliation(s)
- Esther Molina‐Menor
- Institute for Integrative Systems Biology ISysBioUniversitat de València‐CSICPaterna46980Spain
| | - Kristie Tanner
- Institute for Integrative Systems Biology ISysBioUniversitat de València‐CSICPaterna46980Spain
- Darwin Bioprospecting Excellence S.L. Parc Científic Universitat de ValènciaPaterna46980Spain
| | - Àngela Vidal‐Verdú
- Institute for Integrative Systems Biology ISysBioUniversitat de València‐CSICPaterna46980Spain
| | - Juli Peretó
- Institute for Integrative Systems Biology ISysBioUniversitat de València‐CSICPaterna46980Spain
- Darwin Bioprospecting Excellence S.L. Parc Científic Universitat de ValènciaPaterna46980Spain
- Departament de Bioquímica i Biologia MolecularUniversitat de ValènciaBurjassot46100Spain
| | - Manuel Porcar
- Institute for Integrative Systems Biology ISysBioUniversitat de València‐CSICPaterna46980Spain
- Darwin Bioprospecting Excellence S.L. Parc Científic Universitat de ValènciaPaterna46980Spain
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James A, Wang Y. Characterization, health benefits and applications of fruits and vegetable probiotics. CYTA - JOURNAL OF FOOD 2019. [DOI: 10.1080/19476337.2019.1652693] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Armachius James
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, P.R. China
| | - Yousheng Wang
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, P.R. China
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Zhao H, Yuan L, Hu K, Liu L, Peng S, Li H, Wang H. Heterologous expression of ctsR from Oenococcus oeni enhances the acid-ethanol resistance of Lactobacillus plantarum. FEMS Microbiol Lett 2019; 366:5561440. [DOI: 10.1093/femsle/fnz192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 09/03/2019] [Indexed: 11/13/2022] Open
Abstract
Abstract
Oenococcus oeni is a lactic acid bacterium that is widely used in wine-making to conduct malolactic fermentation (MLF). During MLF, O. oeni undergoes acid and ethanol stress that impairs its growth. In order to investigate the role that the ctsR gene plays in acid-ethanol stress, the ctsR gene from O. oeni was expressed heterologously in L. plantarum. The transcription level of the ctsR gene and 10 additional stress response genes in L. plantarum were analyzed by RT-qPCR. Physiological assays to assess ROS accumulation, cell membrane integrity, intracellular ATP and GSH levels, Ca2+/Mg2+-ATPase and Na+/K+-ATPase activities were also performed. Results showed that the recombinant strain WCFS1-CtsR exhibited stronger growth performance than the control strain WCFS1-Vector, and the expression of ctsR, clp, and hsp genes were significantly increased under acid-ethanol stress. Furthermore, WCFS1-CtsR displayed 1.08-, and 1.39-fold higher ATP and GSH concentrations, respectively, compared to the corresponding values for WCFS1-Vector under acid-ethanol stress. ROS accumulation and PI value of WCFS1-CtsR were decreased by 46.52% and 42.80%, respectively, compared to the control strain. In addition, the two ATPase activities in WCFS1-CtsR increased significantly compared with WCFS1-Vector. This is the first report demonstrating that ctsR gene enhances the acid-ethanol tolerance of L. plantarum.
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Affiliation(s)
- Hongyu Zhao
- College of Enology, Northwest A & F University, Yangling, China
| | - Lin Yuan
- College of Enology, Northwest A & F University, Yangling, China
| | - Kai Hu
- College of Enology, Northwest A & F University, Yangling, China
| | - Longxiang Liu
- Shandong Engineering and Technology Research Center for Ecological Fragile Belt of Yellow River Delta, Binzhou, China
| | - Shuai Peng
- College of Enology, Northwest A & F University, Yangling, China
| | - Hua Li
- College of Enology, Northwest A & F University, Yangling, China
- Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, China
- Heyang Experimental and Demonstrational Stations for Grape, Weinan, China
| | - Hua Wang
- College of Enology, Northwest A & F University, Yangling, China
- Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, China
- Heyang Experimental and Demonstrational Stations for Grape, Weinan, China
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Jiang X, Lin D, Shao H, Yang X. Antioxidant properties of Komagataeibacter hansenii CGMCC 3917 and its ameliorative effects on alcohol-induced liver injury in mice. CYTA - JOURNAL OF FOOD 2019. [DOI: 10.1080/19476337.2019.1584647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xinxin Jiang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi‘an, China
| | - Dehui Lin
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi‘an, China
| | - Hongjun Shao
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi‘an, China
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi‘an, China
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An J, Yang C, Li Z, Finn PW, Perkins DL, Sun J, Bai Z, Gao L, Zhang M, Ren D. In vitro antioxidant activities of Rhodobacter sphaeroides and protective effect on Caco-2 cell line model. Appl Microbiol Biotechnol 2018; 103:917-927. [DOI: 10.1007/s00253-018-9497-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 12/20/2022]
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French and Mediterranean-style diets: Contradictions, misconceptions and scientific facts-A review. Food Res Int 2018; 116:840-858. [PMID: 30717015 DOI: 10.1016/j.foodres.2018.09.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 08/29/2018] [Accepted: 09/08/2018] [Indexed: 12/15/2022]
Abstract
The determination of appropriate dietary strategies for the prevention of chronic degenerative diseases, cancer, diabetes, and cardiovascular diseases remains a challenging and highly relevant issue worldwide. Epidemiological dietary interventions have been studied for decades with contrasting impacts on human health. Moreover, research scientists and physicians have long debated diets encouraging alcohol intake, such as the Mediterranean and French-style diets, with regard to their impact on human health. Understanding the effects of these diets may help to improve in the treatment and prevention of diseases. However, further studies are warranted to determine which individual food components, or combinations thereof, have a beneficial impact on different diseases, since a large number of different compounds may occur in a single food, and their fate in vivo is difficult to measure. Most explanations for the positive effects of Mediterranean-style diet, and of the French paradox, have focused largely on the beneficial properties of antioxidants, among other compounds/metabolites, in foods and red wine. Wine is a traditional alcoholic beverage that has been associated with both healthy and harmful effects. Not withstanding some doubts, there is reasonable unanimity among researchers as to the beneficial effects of moderate wine consumption on cardiovascular disease, diabetes, osteoporosis, and longevity, which have been ascribed to polyphenolic compounds present in wine. Despite this, conflicting findings regarding the impact of alcohol consumption on human health, and contradictory findings concerning the effects of non-alcoholic wine components such as resveratrol, have led to confusion among consumers. In addition to these contradictions and misconceptions, there is a paucity of human research studies confirming known positive effects of polyphenols in vivo. Furthermore, studies balancing both known and unknown prognostic factors have mostly been conducted in vitro or using animal models. Moreover, current studies have shifted focus from red wine to dairy products, such as cheese, to explain the French paradox. The aim of this review is to highlight the contradictions, misconceptions, and scientific facts about wines and diets, giving special focus to the Mediterranean and French diets in disease prevention and human health improvement. To answer the multiplicity of questions regarding the effects of diet and specific diet components on health, and to relieve consumer uncertainty and promote health, comprehensive cross-demographic studies using the latest technologies, which include foodomics and integrated omics approaches, are warranted.
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Phospholipid molecular species composition of Chinese traditional low-salt fermented fish inoculated with different starter cultures. Food Res Int 2018; 111:87-96. [DOI: 10.1016/j.foodres.2018.05.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 05/05/2018] [Accepted: 05/08/2018] [Indexed: 01/20/2023]
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Polak-Berecka M, Kubik-Komar A, Gustaw K, Michalak M, Kazimierczak W, Waśko A. Functional traits of Lactobacillus plantarum from fermented Brassica oleracea var. capitata L. in view of multivariate statistical analysis. Eur Food Res Technol 2018. [DOI: 10.1007/s00217-018-3084-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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21
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A new method for the in vitro determination of the bile tolerance of potentially probiotic lactobacilli. Appl Microbiol Biotechnol 2018; 102:1903-1910. [DOI: 10.1007/s00253-018-8742-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 12/21/2017] [Accepted: 12/26/2017] [Indexed: 12/22/2022]
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Margalef-Català M, Felis GE, Reguant C, Stefanelli E, Torriani S, Bordons A. Identification of variable genomic regions related to stress response in Oenococcus oeni. Food Res Int 2017; 102:625-638. [PMID: 29195994 DOI: 10.1016/j.foodres.2017.09.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 09/14/2017] [Accepted: 09/17/2017] [Indexed: 01/24/2023]
Abstract
The lactic acid bacterium Oenococcus oeni is the most important species involved in malolactic fermentation due to its capability to survive in presence of ethanol and in the acidic environment of wine. In order to identify novel genes involved in adaptation to wine, a new approach using genome-wide analysis based on stress-related genes was performed in strain O. oeni PSU-1, and 106 annotated stress genes were identified. The in silico analysis revealed the high similarity of all those genes through 57 O. oeni genomes; however, seven variable regions of genomic plasticity could be determined for their different presence observed among these strains. Regions 3 and 5 had the typical hallmarks of horizontal transfer, suggesting that the strategy of acquiring genes from other bacteria enhanced the fitness of O. oeni strains. Certain genes related to stress resistance were described in these regions, and similarities of putative acquired regions with other lactic acid bacteria species were found. Some genomic fragments present in all the strains were described and another new genomic island harbouring a threonine dehydrogenase was found. The association of selected sequences with adaptation to wine was assessed by screening 31 O. oeni strains using PCR of single genes, but no sequences were found to be exclusive to highly performing malolactic fermentation strains. This study provides new information about the genomic variability of O. oeni strains contributing to a further understanding of this species and the relationship of its genomic traits with the ability to adapt to stress conditions.
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Affiliation(s)
- Mar Margalef-Català
- Departament de Bioquímica i Biotecnologia, Facultat d'Enologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Giovanna E Felis
- Department of Biotechnology, Università degli Studi di Verona, Verona, Italy
| | - Cristina Reguant
- Departament de Bioquímica i Biotecnologia, Facultat d'Enologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Elena Stefanelli
- Department of Biotechnology, Università degli Studi di Verona, Verona, Italy
| | - Sandra Torriani
- Department of Biotechnology, Università degli Studi di Verona, Verona, Italy
| | - Albert Bordons
- Departament de Bioquímica i Biotecnologia, Facultat d'Enologia, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain.
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Wang Y, Liu S, Su J, Zhang Y, Li J, Sui YQ, Li YY, Wang H, Li H. Three novel structural phenomena in the cellular ontogeny of Oenococcus oeni from northern China. Sci Rep 2017; 7:11265. [PMID: 28900232 PMCID: PMC5595991 DOI: 10.1038/s41598-017-09685-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/25/2017] [Indexed: 01/24/2023] Open
Abstract
Stress resistance and growth are important aspects to consider when engineering Oenococcus oeni strains for winemaking. We identified 3 previously unreported structural phenomena in the cell ontogeny of O. oeni sampled in northern China. We show that budding and binary fission (BBF) occur simultaneously in the growth process; that a novel ‘pomegranate-shaped structure’ (PSS) occurs mainly in the stationary and death phases; and that symbiosis and cyclical phenomena (SCP) occur throughout the various cell growth phases. These observations add to the current knowledge of the cell growth process of O. oeni. BBF, PSS, and SCP sufficiently describe the characteristics of the cellular ontogeny of O. oeni. We highlight a newly identified structure that explains the complex cell growth process. These findings will help understand the growth and development of O. oeni, supplementing the knowledge base of the established phases and providing new perspectives into its complex growth patterns.
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Affiliation(s)
- Yun Wang
- College of Enology, Northwest A&F University, Shaanxi, 712100, China
| | - Shuwen Liu
- College of Enology, Northwest A&F University, Shaanxi, 712100, China.,Shaanxi Engineering Research Center for Viti-Viniculture, Shaanxi, 712100, China
| | - Jing Su
- College of Food Science and Engineering, Northwest A&F University, Shaanxi, 712100, China
| | - Yu Zhang
- College of Enology, Northwest A&F University, Shaanxi, 712100, China
| | - Jing Li
- College of Enology, Northwest A&F University, Shaanxi, 712100, China
| | - Yin-Qiang Sui
- College of Enology, Northwest A&F University, Shaanxi, 712100, China
| | - Ying-Ying Li
- College of Enology, Northwest A&F University, Shaanxi, 712100, China
| | - Hua Wang
- College of Enology, Northwest A&F University, Shaanxi, 712100, China.,Heyang Experimental and Demonstrational Stations for Grape, Shaanxi, 715300, China
| | - Hua Li
- College of Enology, Northwest A&F University, Shaanxi, 712100, China. .,Shaanxi Engineering Research Center for Viti-Viniculture, Shaanxi, 712100, China. .,Heyang Experimental and Demonstrational Stations for Grape, Shaanxi, 715300, China.
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Margalef-Català M, Araque I, Bordons A, Reguant C. Genetic and transcriptional study of glutathione metabolism in Oenococcus oeni. Int J Food Microbiol 2017; 242:61-69. [DOI: 10.1016/j.ijfoodmicro.2016.11.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 11/08/2016] [Accepted: 11/14/2016] [Indexed: 12/21/2022]
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Xu S, Liu T, Radji CAI, Yang J, Chen L. Isolation, Identification, and Evaluation of New Lactic Acid Bacteria Strains with Both Cellular Antioxidant and Bile Salt Hydrolase Activities In Vitro. J Food Prot 2016; 79:1919-1928. [PMID: 28221912 DOI: 10.4315/0362-028x.jfp-16-096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this study, we analyzed Chinese traditional fermented food to isolate and identify new lactic acid bacteria (LAB) strains with novel functional properties and to evaluate their cellular antioxidant and bile salt hydrolase (BSH) activities in vitro. A sequential screening strategy was developed to efficiently isolate and obtain 261 LAB strains tolerant of bile salt, acid, and H2O2 from nine Chinese traditional fermented foods. Among these strains, 70 were identified as having 2,2-diphenyl-1-picrylhydrazyl radical scavenging and/or BSH activity. These strains belonged to eight species: Enterococcus faecium (33% of the strains), Lactobacillus plantarum (26%), Leuconostoc mesenteroides (14%), Pediococcus pentosaceus (6%), Enterococcus durans (9%), Lactobacillus brevis (9%), Pediococcus ethanolidurans (3%), and Lactobacillus casei (1%). The pulsed-field gel electrophoresis genome fingerprinting profiles of these strains revealed 38 distinct pulsotypes, indicating a high level of genomic diversity among the tested strains. Twenty strains were further evaluated for hydroxyl radical scavenging activity, reducing power, and ferrous ion chelating activity exerted by both viable intact cells and/or intracellular cell-free extracts. Some strains, such as L. plantarum D28 and E. faecium B28, had high levels of both cellular antioxidant and BSH activities in vitro. These strains are promising probiotic components for health-promoting functional foods.
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Affiliation(s)
- Shuang Xu
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology
| | - Taigang Liu
- College of Information Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai 201306, People's Republic of China
| | - Chiraz Akorede Ibinke Radji
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology
| | - Jing Yang
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology
| | - Lanming Chen
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology
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