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Journal articles on the topic 'Weissella cibaria'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 June 2025

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D.K, Nurmuhamedova. "MAHALLIY SUT ACHITUVCHI BAKTERIYALARNING ANTIMIKROB VA BAKTERIOSINOGEN FAOLLIGINI TADQIQ ETISH." 2016-yil, 1-son (95) ANIQ VA TABIIY FANLAR SERIYASI 1, no. 95 (2023): 1–12. http://dx.doi.org/10.59251/2181-1296.2023.v3.139.2.2268.

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Maqolada laktobakteriya shtammlarining shartli-patogen izolyatlarga nisbatan antimikrob hamda bakteriotsinogen faolligi bo'yicha tadqiqot natijalari keltirilgan. Mahalliy sut mahsulotlari va ona suti bilan oziqlanadigan chaqaloqlarning ahlat na'munasidan sut achituvchi 28 ta bakteriyalar ajratildi va antimikrob faolikka skrining qilindi, ularning probiotik xususiyatlari o'rganildi. Аjratilgan sut achituvchi bakteriyalarning 28 ta izolyatlaridan 7 ta shtamm tanlab olindi. Tanlangan shtammlar klinik izolatlarga nisbatan yuqori mikroblarga qarshi faol zona namoyon etdi. Sut achituvchi bakteriyalar orasidan Weissella cibaria WC-1, Weissella cibaria WC-2, Weissella viridescens WV hamda Lactobacillus plantarum C-2 shtammlarini Bacillus subtilis bakteriyasiga nisbatan bakteriotsinogen moddasi mavjudligi aniqlandi.

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Teixeira, Camila Gonçalves, Rafaela da Silva Rodrigues, Ricardo Seiti Yamatogi, et al. "Genomic Analyses of Weissella cibaria W25, a Potential Bacteriocin-Producing Strain Isolated from Pasture in Campos das Vertentes, Minas Gerais, Brazil." Microorganisms 10, no. 2 (2022): 314. http://dx.doi.org/10.3390/microorganisms10020314.

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Weissella is a genus containing Gram-positive, heterofermentative bacteria belonging to the lactic acid bacteria (LAB) group. These bacteria are endowed with promising technological and antimicrobial attributes. Weissella cibaria W25 was isolated from a dairy environment where raw milk cheeses are produced. Therefore, we sequenced and assembled the W25 draft genome sequence, which consists of 41 contigs totaling ~2.4 Mbp, with a G + C content of 45.04%. Then we carried out a comprehensive comparative genomic analysis with W. cibaria 110, known to produce the weissellicin 110 bacteriocin, and four other non-bacteriocin-producing W. cibaria strains.

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Ennahar, Saïd, and Yimin Cai. "Genetic evidence that Weissella kimchii Choi et al. 2002 is a later heterotypic synonym of Weissella cibaria Björkroth et al. 2002." International Journal of Systematic and Evolutionary Microbiology 54, no. 2 (2004): 463–65. http://dx.doi.org/10.1099/ijs.0.02783-0.

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The taxonomic positions of Weissella kimchii and Weissella cibaria were examined using phenotypic tests, 16S rRNA gene sequencing and DNA–DNA hybridization. The two species displayed very similar sugar-fermentation patterns and produced the d-form of lactic acid. Phylogenetic analysis showed that W. cibaria is the closest neighbour of W. kimchii, sharing about 99·7 % similarity in the 16S rRNA gene sequence. DNA–DNA hybridization experiments further reinforced these results, demonstrating a 98·2 % reassociation level between W. cibaria LMG 17699T and W. kimchii DSM 14295T. On the other hand, strain RO5, an isolate from paddy rice silage, exhibited 99·4 % 16S rRNA gene sequence similarity and a DNA reassociation level of more than 97 % with both type strains. Therefore, it is proposed that the species W. kimchii should be reclassified as W. cibaria.

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Kim, Eiseul, Seung-Min Yang, Dae-Hyun Jung, and Hae-Yeong Kim. "Differentiation between Weissella cibaria and Weissella confusa Using Machine-Learning-Combined MALDI-TOF MS." International Journal of Molecular Sciences 24, no. 13 (2023): 11009. http://dx.doi.org/10.3390/ijms241311009.

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Although Weissella cibaria and W. confusa are essential food-fermenting bacteria, they are also opportunistic pathogens. Despite these species being commercially crucial, their taxonomy is still based on inaccurate identification methods. In this study, we present a novel approach for identifying two important Weissella species, W. cibaria and W. confusa, by combining matrix-assisted laser desorption/ionization and time-of-flight mass spectrometer (MALDI-TOF MS) data using machine-learning techniques. After on- and off-plate protein extraction, we observed that the BioTyper database misidentified or could not differentiate Weissella species. Although Weissella species exhibited very similar protein profiles, these species can be differentiated on the basis of the results of a statistical analysis. To classify W. cibaria, W. confusa, and non-target Weissella species, machine learning was used for 167 spectra, which led to the listing of potential species-specific mass-to-charge (m/z) loci. Machine-learning techniques including artificial neural networks, principal component analysis combined with the K-nearest neighbor, support vector machine (SVM), and random forest were used. The model that applied the Radial Basis Function kernel algorithm in SVM achieved classification accuracy of 1.0 for training and test sets. The combination of MALDI-TOF MS and machine learning can efficiently classify closely-related species, enabling accurate microbial identification.

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Apostolakos, Ilias, Spiros Paramithiotis, and Marios Mataragas. "Functional and Safety Characterization of Weissella paramesenteroides Strains Isolated from Dairy Products through Whole-Genome Sequencing and Comparative Genomics." Dairy 3, no. 4 (2022): 799–813. http://dx.doi.org/10.3390/dairy3040055.

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Strains belonging to the Weissella genus are frequently recovered from spontaneously fermented foods. Their functional, microbial-modulating, and probiotic traits enhance not only the sensorial properties but also the nutritional value, beneficial effects, and safety of fermented products. Sporadic cases of opportunistic pathogenicity and antibiotic resistance have deprived safety status from all Weissella species, which thus remain understudied. Our study increased the number of available high-quality and taxonomically accurate W. paramesenteroides genomes by 25% (9 genomes reported, leading to a total of 36 genomes). We conducted a phylogenetic and comparative genomic analysis of the most dominant Weissella species (W. cibaria, W. paramesenteroides, W. viridescens, W. soli, W. koreensis, W. hellenica and W. thailadensis). The phylogenetic tree corroborated species assignment but also revealed phylogenetic diversity within the Weissella species, which is likely related to the adaptation of Weissella in different niches. Using robust alignment criteria, we showed the overall absence of resistance and virulence genes in Weissella spp., except for one W. cibaria isolate carrying blaTEM-181. Enrichment analysis showed the association of Weissella species several CAZymes, which are essential for biotechnological applications. Additionally, the combination of CAZyme metabolites with probiotics can potentially lead to beneficial effects for hosts, such as the inhibition of inflammatory processes and the reduction of cholesterol levels. Bacteriocins and mobile genetic elements MGEs (Inc11 plasmid and ISS1N insertion sequence) were less abundant, however W. thailadensis and W. viridescens showed significant association with specific bacteriocin-encoding genes. Lastly, an analysis of phenotypic traits underlined the need to carefully evaluate W. cibaria strains before use as food additives and suggested the possibility of employing W. paramesenteroides and W. hellenica in the fermentation process of vegetable products. More studies providing high-resolution characterization of Weissella strains from various sources are necessary to elucidate the safety of Weissella spp. and exploit their beneficial characteristics.

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Wayah, Samson Baranzan, Koshy Philip, and Amos Alvan. "Development of New Media for Production of Bacteriocin from Weissella cibaria man1." UMYU Journal of Microbiology Research (UJMR) 9, no. 2 (2024): 240–48. https://doi.org/10.47430/ujmr.2492.027.

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Study’s Excerpt:• A novel, cost-effective medium was developed to enhance bacteriocin production from Weissella cibaria man1.• New media were formulated using cheap, locally sourced ingredients like apple, cashew, and tiger nut.• Bacteriocin production in the APC medium was higher and cheaper than commercial MRS broth.• Optimal pH (5-6) significantly enhanced bacteriocin yield, improving its potential for medicinal use.• This study offers a sustainable approach to bacteriocin production, aiding antibiotic resistance control.Full Abstract:According to the World Health Organization, antibiotic resistance is one of the top ten global health challenges. Bacteriocins from lactic acid bacteria are widely considered viable alternatives to antibiotics. However, one of the obstacles to bacteriocin commercialization is low yield. In order to circumvent this challenge, it is essential to enhance our understanding of the factors that impact bacteriocin production. Therefore, a study aimed at developing cost-effective media for bacteriocin production from Weissella cibaria man1 was carried out. Media were developed from cheap indigenously sourced materials. Bacteriocin production was measured by agar well diffusion assay. Multiple cost-effective media for the efficient production of bacteriocin from Weissella cibaria man1 were developed. It was discovered that culture media had significant effect (p ˂ 0.05) on the production of bacteriocin by Weissella cibaria man1. One of the newly developed media, APC, produced the highest level of bacteriocin. The APC medium produced bacteriocin at a level significantly higher than the commercial medium, MRS broth. Moreover, bacteriocin production in 6 additional, newly developed media namely, DAT, BAE, DAC, CAN, PIN, RIG was as high as that of MRS broth. Bacteriocin synthesis by Weissella cibaria man1 was greatly influenced by the starting pH of the APC culture medium. Furthermore, optimum level of bacteriocin was observed at pH values of 5 and 6. The industrial production of bacteriocin from bacteriocinogenic lactic acid bacteria for use in medicinal applications will be substantially facilitated as a result of these discoveries.

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Wayah, Samson Baranzan, Shehu Abubakar, Jamila Saleh, Amos Alvan, and Simnom Yado. "ISOLATION AND MOLECULAR IDENTIFICATION OF INDIGENOUS BACTERIOCIN-PRODUCING WEISSELLA CIBARIA." FUDMA JOURNAL OF SCIENCES 8, no. 5 (2024): 300–306. http://dx.doi.org/10.33003/fjs-2024-0805-2854.

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Globally, over 6.22 million deaths are associated with antibiotic resistance. Bacteriocins, a set of antimicrobial peptides synthesized on the ribosomes, are widely viewed as a potential answer to this issue. This is due to their pore-forming ability and antimicrobial activity against antibiotic-resistant pathogens. The aim of this study is to isolate bacteriocin-producing Weissella cibaria and evaluate its antimicrobial activity against Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Salmonella typhi, Proteus mirabilis, Streptococcus sp., Candida sp. and Rhizopus stolonifer. Weissella cibaria man1 was isolated by inoculating deMan Rogosa Sharpe (MRS) broth with small pieces of ripe Mangifera indica (mango), 24-hour incubation at 370C, 10-fold serial dilution and plating on MRS agar. Molecular identification was achieved by DNA extraction, amplification of the 16S rRNA gene through polymerase chain reaction (PCR), agarose gel electrophoresis, gene sequencing, and BLASTN homology searches in the National Center for Biotechnology Information (NCBI). Antimicrobial activity of the bacteriocin was determined by agar well diffusion assay. Mangifera indica (mango) was found to harbor bacteriocin-producing Weissella cibaria man1. The bacteriocin (weissellicin man1) exhibited a broad spectrum of antimicrobial activity. Weissellicin man1 suppressed the growth of several target pathogens (Pseudomonas aeruginosa, Klebsiella pneumoniae, Salmonella typhi, Proteus mirabilis, Candida sp. and Rhizopus stolonifer) but had no inhibitory action against Escherichia coli, Streptococcus sp., Staphylococcus aureus. In conclusion, weissellicin man1 from Weissella cibaria man1 has a broad-spectrum of antimicrobial action. These findings will facilitate further evaluation of the antimicrobial potency of weissellicin man1.

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Kim, Jeong-Sun, Eun-Young Hwang, Sang-Won Choi, and Jae-Yong Park. "Preparation of Fermented Mulberry Beverage by Weissella cibaria." Current Topic in Lactic Acid Bacteria and Probiotics 2, no. 1 (2014): 38–44. http://dx.doi.org/10.35732/ctlabp.2014.2.1.38.

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Ren, Meiyi, Tianxiong Jin, Jingdi Tong, et al. "Anti-Inflammatory Effects of Weissella cibaria SDS2.1 Against Klebsiella pneumoniae-Induced Mammary Gland Inflammation." Animals 15, no. 8 (2025): 1139. https://doi.org/10.3390/ani15081139.

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Dairy cows are highly susceptible to mastitis caused by Klebsiella pneumoniae, and treating these infections poses a challenge due to the resistance of the bacterium to common antibiotics. This study aimed to evaluate the safety of W. cibaria SDS2.1 and investigate its protective effects against K. pneumoniae-induced mastitis. The safety of W. cibaria SDS2.1 was assessed through comprehensive analyses, including antibiotic resistance profiling, hemolysis assays, cell cytotoxicity tests, and whole-genome sequencing. Furthermore, its ability to protect against cellular and tissue damage caused by K. pneumoniae-induced mastitis was evaluated using both in vitro and in vivo models. Our results revealed that W. cibaria SDS2.1 was non-hemolytic, non-cytotoxic, and significantly inhibited the growth of K. pneumoniae (p < 0.05). Additionally, W. cibaria SDS2.1 effectively reduced the adhesion and invasion of K. pneumoniae. In the K. pneumoniae-induced mouse mastitis model, W. cibaria SDS2.1 significantly reduced myeloperoxidase (MPO) activity, mammary tissue damage, and the expression of inflammatory cytokines (IL-6, IL-1β, and TNF-α) (p < 0.05). In K. pneumoniae-infected bovine mammary epithelial cells (bMECs), W. cibaria SDS2.1 significantly decreased lactate dehydrogenase (LDH) release, indicating reduced cellular damage. These findings demonstrate that W. cibaria SDS2.1 exhibits anti-inflammatory properties in experimental models, suggesting its potential role in mitigating K. pneumoniae-induced mastitis.

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Quattrini, M., D. Korcari, G. Ricci, and M. G. Fortina. "A polyphasic approach to characterize Weissella cibaria and Weissella confusa strains." Journal of Applied Microbiology 128, no. 2 (2019): 500–512. http://dx.doi.org/10.1111/jam.14483.

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Jang, Ye-Ji, Hee-Min Gwon, Woo-Soo Jeong, Soo-Hwan Yeo, and So-Young Kim. "Safety Evaluation of Weissella cibaria JW15 by Phenotypic and Genotypic Property Analysis." Microorganisms 9, no. 12 (2021): 2450. http://dx.doi.org/10.3390/microorganisms9122450.

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Weissella cibaria is one of the bacteria in charge of the initial fermentation of kimchi and has beneficial effects such as immune-modulating, antagonistic, and antioxidant activities. In our study, we aimed to estimate the safety of W. cibaria JW15 for the use of probiotics according to international standards based on phenotypic (antibiotic resistance, hemolysis, and toxic metabolite production) and genotypic analysis (virulence genes including antibiotic resistance genes). The results of the safety assessment on W. cibaria JW15 were as follows; (1) antibiotic resistance genes (ARGs) (kanamycin and vancomycin etc.) were intrinsic characteristics; (2) There were no acquired virulence genes including Cytolysin (cylA), aggregation substance (asa1), Hyaluronidase (hyl), and Gelatinase (gelE); (3) this strain also lacked β-hemolysis and the production of toxic metabolites (D-lactate and bile salt deconjugation). Consequently, W. cibaria JW15 is expected to be applied as a functional food ingredient in the food market.

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Kim, D. S., S. H. Choi, D. W. Kim, et al. "Genome Sequence of Weissella cibaria KACC 11862." Journal of Bacteriology 193, no. 3 (2010): 797–98. http://dx.doi.org/10.1128/jb.01342-10.

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Nguyen, Duc Huy, My Tieu Ngoc Le, Hoang Loc Nguyen, et al. "Isolation of Weissella cibaria from Pacific White Shrimp (Litopenaeus vannamei) Gastrointestinal Tract and Evaluation of Its Pathogenic Bacterial Inhibition." Indian Journal of Science and Technology 13, no. 10 (2020): 1200–1212. https://doi.org/10.17485/ijst/2020/v13i10/149934.

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Abstract Objective: The present study reported the isolation of lactic acid bacteria from the shrimp gastrointestinal tract and evaluation of its antagonistic activity against pathogenic bacteria. Methods/ statistical analysis: Lactic bacteria from the gastrointestinal tract of alive healthy shrimp were screened on sterilized MRS medium. Vibrio sp. inhibition by isolates was conducted by the agar-well diffusion assay. The isolates were identified by 16S rRNA sequencing. Antibacterial activity was investigated against 25 Vibrio sp. isolates, Staphylococcus aureus ATCC 25023, and Escherichia coli ATCC 85922. Hemolytic activity, salt, and antibiotic resistance were also evaluated. Findings: Total of 22 isolates exhibited Vibrio parahaemolyticus inhibition with antagonistic activities ranged from 220 AU/ml to 460 AU/ml. Sequence analysis of 16S rRNA indicated the 5 isolates belong to Weissella cibaria species, namely HN02, HN03, HN04, and HN06 AND HN07. Among these, W. cibaria HN05 had highest antagonistic activity and exhibited the broad inhibition spectrum against Vibrio sp. as well as E. coli ATCC 85922 but not S. aureus ATCC 25023. β-hemolytic and salt resistance assays showed that W. cibaria HN05 had no β-hemolytic activity and grew well in medium containing 5% of salt. Antibiotic resistance analysis indicated W. cibaria HN05 was suppressed by ampicillin, chloramphenicol, oxytetracycline hydrochloride, and chlortetracycline hydrochloride. Application/improvements: This is the first study on isolation and evaluation pathogenic bacteria including Vibrio sp. inhibition by W. cibaria, which is isolated from shrimp gastrointestinal tract. Keywords: Antagonistic Activity, Gastrointestinal Tract, Shirmp, Weissella cibaria, Vibrio sp.

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Rambitan, Grisella, Johanis J. Pelealu, and Trina E. Tallei. "Isolasi dan identifikasi bakteri asam laktat hasil fermentasi kol merah (Brassica oleracea L.) sebagai probiotik potensial (Isolation and identification lactic acid bacteria from red cabbage (Brassica oleracea L.) fermentation as potential probiotic)." JURNAL BIOS LOGOS 8, no. 2 (2018): 33. http://dx.doi.org/10.35799/jbl.8.2.2018.21447.

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AbstrakBakteri asam laktat merupakan kelompok bakteri yang menghasilkan asam laktat sebagai produk utama dalam fermentasi. Bakteri ini sering disebut probiotik sebab memberikan dampak positif bagi tubuh manusia. Setiap spesies bakteri asam laktat memiliki efek probiotik yang berbeda-beda sehingga diperlukan seleksi dan identifikasi untuk mendapatkan strain probiotik yang baik. Identifikasi bakteri asam laktat dalam penelitian ini menggunakan metode identifikasi molekuler dengan gen penanda 16S rRNA. Bakteri asam laktat dari fermentasi kol merah memiliki kemiripan 100% dengan Weissella cibaria dan Weissella confusa. Analisis filogenetik menunjukkan hubungan kekerabatan antara isolat bakteri asam laktat dari fermentasi kol merah dengan bakteri genus Weissella yang lain.Kata kunci: bakteri asam laktat, fermentasi, 16S rRNA, probiotik AbstractLactic acid bacteria is a group of bacteria that produce lactic acid as the main product in fermentation. These bacteria are often called probiotics because can confer a positive impact on the human body. Each species of lactic acid bacteria has a different probiotic effect that requires selection and identification to obtain a good probiotic strain. The identification of lactic acid bacteria in this study used a method of molecular identification with a marker gene of 16S rRNA. Lactic acid bacteria from red cabbage fermentation have a 100% similarity to Weissella cibaria and Weissella confusa. Phylogenetic analysis showed a relationship between lactic acid bacteria isolates from red cabbage fermentation with bacteria from the other Weissella genus.Keywords: lactic acid bacteria, fermentation, 16S rRNA, probiotics

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Mohd Jaini, Mohammad Fahrulazri, Nurfaten Farhanah Roslan, Mohd Termizi Yusof, et al. "Investigating the Potential of Endophytic Lactic Acid Bacteria Isolated from Papaya Seeds as Plant Growth Promoter and Antifungal Agent." Pertanika Journal of Tropical Agricultural Science 45, no. 1 (2022): 207–33. http://dx.doi.org/10.47836/pjtas.45.1.12.

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Endophytic lactic acid bacteria (LAB) isolated from papaya seeds, including a consortium of two LAB isolates, Weissella cibaria PPKSD19 and Lactococcus lactis subsp. lactis PPSSD39 could previously inhibit papaya dieback disease causative agent, Erwinia mallotivora BT-MARDI in vitro, indicating their potential as biofertilizer. However, further characterizations on other plant growth-promoting (PGP) properties of the LABs are pre-requisite to use in agricultural settings as bio-inoculum. Hence, this study aimed to evaluate PGP potentials further and in vitro antifungal activity of the LABs against various plant pathogens. The LAB isolates were tested positive in indole-3-acetic acid (IAA), siderophore, and ammonia production and could solubilize phosphate. Weissella cibaria PPKSD19 and L. lactis subsp. lactis PPSSD39 exhibited the strongest in vitro antifungal activity against Fusarium oxysporum TKA and Curvularia lunata. Inoculum concentration of 1×108 cfu/ml of W. cibaria PPKSD19 and L. lactis subsp. lactis PPSSD39 mixture showed the highest increment in shoot and root dry weight. In conclusion, W. cibaria PPKSD19 and L. lactis subsp. lactis PPSSD39 consortium displayed promising plant probiotic potential. These results highlighted the possibility of the bacterial consortium to be exploited as bioinoculant to promote plant growth and inhibit phytopathogens causing plant diseases.

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Huang, Qian, Haixiao Ye, Yangyang Yang, Chenglin Zhu, and Junni Tang. "Physicochemical Properties, Antioxidant Activities, and Aromatic Profile of Yogurt Co-Fermented by Weissella cibaria G232 with Traditional Starters." Foods 14, no. 9 (2025): 1607. https://doi.org/10.3390/foods14091607.

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To improve the quality and functional properties of yogurts, a multi-starters co-fermentation system was used during yogurt preparation. In this work, Weissella cibaria G232 (added at 0%, 3%, 5%, and 7%) was involved as a co-fermenter with a traditional starter (Lactobacillus delbrueckii subsp. bulgaricus G119 and Streptococcus thermophilus Q019). The results showed that W. cibaria G232 co-fermentation could shorten the fermentation time and significantly enhance the viable counts of yogurt (p < 0.05). Moreover, the incorporation of W. cibaria G232 improved the water holding ability, viscosity, and texture of yogurt. Notably, the highest levels of firmness, consistency, and cohesiveness of yogurt were observed at the 5% addition level of W. cibaria G232. Furthermore, co-fermentation with W. cibaria G232 significantly enhanced the antioxidant activity of yogurt, as evidenced by increased free radical scavenging capacity and ferric ion reducing antioxidant power (FRAP) value. The intelligent sensory technology and Gas Chromatography-Ion Mobility Spectrometry (GC-IMS) indicated that co-fermentation with W. cibaria G232 and a traditional starter notably altered the accumulation of aldehydes, ketones, and alcohols in yogurt. These findings suggest that co-fermentation of W. cibaria G232 with a traditional starter present the potential for the quality and functionality improvement of yogurt and also lay the foundation for the application of W. cibaria G232.

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Kang, Mi-Sun, Ji-Eun Yeu, and Sang-Phil Hong. "Safety Evaluation of Oral Care Probiotics Weissella cibaria CMU and CMS1 by Phenotypic and Genotypic Analysis." International Journal of Molecular Sciences 20, no. 11 (2019): 2693. http://dx.doi.org/10.3390/ijms20112693.

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Weissella cibaria CMU and CMS1 are known to exert beneficial effects on the oral cavity but have not yet been determined to be generally recognized as safe (GRAS), although they are used as commercial strains in Korea. We aimed to verify the safety of W. cibaria CMU and CMS1 strains through phenotypic and genotypic analyses. Their safety was evaluated by a minimum inhibitory concentration assay for 14 antibiotics, DNA analysis for 28 antibiotic resistance genes (ARGs) and one conjugative element, antibiotic resistance gene transferability, virulence gene analysis, hemolysis, mucin degradation, toxic metabolite production, and platelet aggregation reaction. W. cibaria CMU showed higher kanamycin resistance than the European Food Safety Authority (EFSA) cut-off, but this resistance was not transferred to the recipient strain. W. cibaria CMU and CMS1 lacked ARGs in chromosomes and plasmids, and genetic analysis confirmed that antibiotic resistance of kanamycin was an intrinsic characteristic of W. cibaria. Additionally, these strains did not harbor virulence genes associated with pathogenic bacteria and lacked toxic metabolite production, β-hemolysis, mucin degradation, bile salt deconjugation, β-glucuronidase, nitroreductase activity, gelatin liquefaction, phenylalanine degradation, and platelet aggregation. Our findings demonstrate that W. cibaria CMU and CMS1 can achieve the GRAS status in future.

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Do, Kyung-Hyo, Ho-Eun Park, Mi-Sun Kang, Jong-Tae Kim, Ji-Eun Yeu, and Wan-Kyu Lee. "Effects of Weissella cibaria CMU on Halitosis and Calculus, Plaque, and Gingivitis Indices in Beagles." Journal of Veterinary Dentistry 36, no. 2 (2019): 135–42. http://dx.doi.org/10.1177/0898756419872562.

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Weissella (W.) cibaria strain Chonnam Medical University (CMU) has shown oral colonizing ability and inhibitory effects on the formation of volatile sulfur compounds (VSCs) in vitro studies. The present study was conducted to analyze the effects of the W. cibaria CMU on canine oral health. Halitosis, calculus, plaque, gingivitis, and intraoral microbiota were assessed in 3 groups: control (maltodextrin), W. cibaria CMU low concentration (CMU-L, 2 × 107 colony forming unit [CFU]), and high-concentration (CMU-H, 2 × 109 CFU). Halitosis was analyzed using both organoleptic evaluation and measurement of VSCs. Intraoral microbiota were analyzed by real-time polymerase chain reaction. From week 4, the total VSC level in the CMU-H group (4.0 ± 1.30 ng/10 mL) was significantly lower than in the control group (6.3 ± 2.28 ng/10 mL). Significant reduction in methyl mercaptan in the CMU-treated groups was also observed. In addition, the plaque index in the CMU-treated groups was significantly decreased. The CMU-treated groups showed significant decreases in Fusobacterium nucleatum, Porphyromonas gingivalis, Prevotella intermedia, and Tannerella forsythia and demonstrated the colonizing ability of W. cibaria CMU in the oral cavity. We demonstrated that W. cibaria CMU suppresses halitosis, colonizes the oral cavity, and inhibits the proliferation of malodor-causing oral bacteria in beagles. According to these results, we expect that W. cibaria CMU could be a new oral hygiene solution by reducing VSC production and inhibiting the growth of oral harmful bacteria in companion animals.

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Liu, Xiaoyu, Nan Jiang, Xinyue Wang, et al. "Weissella cibaria Relieves Gut Inflammation Caused by Escherichia coli through Inflammation Modulation and Gut Microbiota Regulation." Foods 13, no. 7 (2024): 1133. http://dx.doi.org/10.3390/foods13071133.

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The emergence of multi-drug-resistant (MDR) pathogens has considerably challenged the development of new drugs. Probiotics that inhibit MDR pathogens offer advantages over chemical antibiotics and drugs due to their increased safety and fewer side effects. This study reported that Weissella cibaria P-8 isolated from pickles showed excellent antibacterial activity against intestinal pathogens, particularly the antibacterial activity against MDR Escherichia coli B2 was the highest. This study showed that the survival rates of W. cibaria P-8 at pH 2.0 and 0.3% bile salt concentration were 72% and 71.56%, respectively, and it still had antibacterial activity under pepsin, trypsin, protease K, and catalase hydrolysis. Moreover, W. cibaria P-8 inhibits the expression of inflammatory factors interleukin-1β, tumor necrosis factor-α, and interleukin-6, upregulates the interleukin-10 level, and increases total antioxidant capacity and superoxide dismutase enzyme activity in serum. W. cibaria P-8 also efficiently repairs intestinal damage caused by E. coli infection. The gut microbiota analysis demonstrated that W. cibaria P-8 colonizes the intestine and increases the abundance of some beneficial intestinal microorganisms, particularly Prevotella. In conclusion, W. cibaria P-8 alleviated MDR E. coli-induced intestinal inflammation by regulating inflammatory cytokine and enzyme activity and rebalancing the gut microbiota, which could provide the foundation for subsequent clinical analyses and probiotic product development.

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Fessard, Amandine, Emmanuel Bourdon, Bertrand Payet, and Fabienne Remize. "Identification, stress tolerance, and antioxidant activity of lactic acid bacteria isolated from tropically grown fruits and leaves." Canadian Journal of Microbiology 62, no. 7 (2016): 550–61. http://dx.doi.org/10.1139/cjm-2015-0624.

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From 6 samples of tropically grown fruits and leaves, 10 lactic acid bacteria belonging Leuconostoc, Weissella, and Lactobacillus species were isolated and identified by 16S rRNA gene sequencing and (GTG)5 fingerprinting. Acidification kinetics determined from BHI broth cultures showed genus-related patterns. In particular, Weissella cibaria appeared to act as a potent acidifier. Tolerance of isolates to acid, oxidative, or salt stress was highly variable and strain dependent. Isolate S14 (Leuconostoc pseudomesenteroides) growth was not affected by the presence of 0.05% H2O2, while Lactobacillus spp. isolates (S17 and S29) were the most tolerant to pH 4.5. The growth of 4 isolates, S5 (Leuconostoc mesenteroides), S14 and S10 (Leuconostoc pseudomesenteroides), and S27 (W. cibaria), was not affected by 5% NaCl. Nutritional beneficial properties were examined through measurement of antioxidant activities of short-term fermented pineapple juice, such as LDL oxidation and polyphenol content, and through exopolysaccharide formation from sucrose. Two isolates, S14 and S27, increased the antioxidant capacity of pineapple juice. The robust capacity of W. cibaria and of Leuconostoc pseudomesenteroides for vegetable lactic fermentation aimed to ameliorate food nutritional and functional quality was highlighted.

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Suheil, Saad Shalawy, and Asmaa Sabah Ahmaed. "Production of Dextran from Domestic Weissella cibaria Isolated." IOP Conference Series: Earth and Environmental Science 1262, no. 6 (2023): 062012. http://dx.doi.org/10.1088/1755-1315/1262/6/062012.

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Abstract Dextran is an exopolysaccharide (EPS) of bacterial origin that is readily available in the commercial market. that is used in various industrial applications as an adjuvant, emulsifier, carrier, and stabilizer in the food and biomedical industries. Industrial production of dextran is carried out by fermentation in sucrose-rich media. Studies to optimize dextran production have shown that dextran yield varies depending on specific production conditions. This study aimed to generate dextrans Lactobacillus species were obtained from the vaginal and stool samples of healthy infants. The mucosal technique was employed to determine the biosynthesis of dextran from various isolates of Lactobacillus spp. colony assay and confirmed by isopropanol precipitation. The effects of various parameters such as sucrose concentration, nitrogen concentration, temperature, incubation time, pH, and inoculum size were studied to optimize the maximum dextran yield. In the present study, Weissella cibaria may produce dextran. Optimal conditions for dextran production are a 48-hour incubation at The experimental conditions involved maintaining a temperature of 37°C, with a sugar concentration of 10%, and a yeast extract concentration of 0.5%. The inoculum volume was set at 4%, and the pH level was maintained at 6.5. The experiment was conducted under aerobic conditions. The obtained value for dextran dry weight was 520 mg/100 ml.

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Li, Yu Qin, Wen Li Tian, and Chun Tao Gu. "Weissella sagaensis sp. nov., isolated from traditional Chinese yogurt." International Journal of Systematic and Evolutionary Microbiology 70, no. 4 (2020): 2485–92. http://dx.doi.org/10.1099/ijsem.0.004062.

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Three Gram-stain-positive bacterial strains, designated X0750T, X0278 and X0401, isolated from traditional yogurt in Tibet Autonomous Region, PR China, were characterized by a polyphasic approach, including sequence analyses of the 16S rRNA gene and three housekeeping genes (pheS, rpoA and recA), determination of average nucleotide identity (ANI) and average amino acid identity (AAI), in silico DNA–DNA hybridization (isDDH), fatty acid methyl ester (FAME) analysis and phenotypic characterization. Strain X0750T was phylogenetically related to the type strains of Weissella hellenica , Weissella bombi , Weissella paramesenteroides , Weissella jogaejeotgali , Weissella thailandensis , Weissella oryzae , Weissella cibaria and Weissella confusa , having 94.4–100 % 16S rRNA gene sequence similarities, 76.7–90.0 % pheS gene sequence similarities, 88.9–99.4 % rpoA gene sequence similarities and 77.6–92.8 % recA gene sequence similarities, respectively. ANI, isDDH and AAI values between strain X0750T and type strains of phylogenetically related species were less than 90.4, 40.9 and 92.8 % respectively, confirming that strain X0750T represents a novel species within the genus Weissella . Based upon the data obtained in the present study, a novel species, Weissella sagaensis sp. nov., is proposed and the type strain is X0750T(=NCIMB 15192T=CCM 8924T=LMG 31184T=CCTCC AB 2018403T).

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Yeu, Ji-Eun, Hyeon-Gyu Lee, Geun-Yeong Park, Jisun Lee, and Mi-Sun Kang. "Antimicrobial and Antibiofilm Activities of Weissella cibaria against Pathogens of Upper Respiratory Tract Infections." Microorganisms 9, no. 6 (2021): 1181. http://dx.doi.org/10.3390/microorganisms9061181.

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Recently discovered preventive effects of probiotics on oral health have attracted interest to their use for the prevention and treatment of various diseases. This study aimed to evaluate the antimicrobial and antibiofilm properties of Weissella cibaria against Streptococcus pyogenes, Staphylococcus aureus, S. pneumoniae, and Moraxella catarrhalis, the major pathogens of upper respiratory tract infections (URTIs). The antimicrobial activities of W. cibaria were compared with those of other oral probiotics using a competitive inhibition assay and the determination of the minimum inhibitory concentrations (MICs). In addition, a time-kill assay, spectrophotometry, and confocal laser scanning microscopy were used to confirm the antimicrobial and antibiofilm abilities of W. cibaria CMU (oraCMU) and CMS1 (oraCMS1). Both live cells and cell-free supernatants of all tested probiotics, except Streptococcus salivarius, showed excellent antimicrobial activities. All target pathogens were killed within 4 to 24 h at twice the MIC of oraCMU and oraCMS1, which showed the highest antimicrobial activities against M. catarrhalis. The antimicrobial substances that affected different target pathogens were different. Both oraCMU and oraCMS1 showed excellent abilities to inhibit biofilm formation and remove preformed biofilms. Our results suggest that the W. cibaria probiotics offer new possibilities for the prevention and treatment of bacterial URTIs.

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Baumgartner, Martina, Verena Urbantke, Thomas Wittek, Beatrix Stessl, and Regina Wald. "Nachweis von Weissella spp. in Viertelgemelksproben von zwei Milchkühen mit klinischer Mastitis." Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere 44, no. 05 (2016): 307–12. http://dx.doi.org/10.15653/tpg-160047.

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ZusammenfassungDieser Fallbericht beschreibt die Isolierung und Differenzierung von Weissella (W.) spp. aus der Milch zweier Kühe mit klinischer Mastitis (Milchveränderung, Euterschwellung und Zellzahlerhöhung). Viertelgemelksproben von zwei Milchkühen (A und B) aus unterschiedlichen Betrieben wurden an das Milchlabor der Universitätsklinik für Wiederkäuer in Wien zur bakteriologischen Untersuchung eingesendet. Es wurden α-hämolysierende, Katalase-negative, grampositive Kokken in Reinkultur auf Columbia-Blut-Agar isoliert, die sich keiner Lancefield-Gruppe zuordnen ließen. Die biochemische Charakterisierung der Isolate (API® 20 Strep, bioMérieux) ergab Leuconostoc spp. Eine Kontrolluntersuchung des Tieres B innerhalb von 7 Wochen bestätigte diese Ergebnisse. Mittels 16S-rDNA-Sequenzierung wurden die drei Isolate als W. paramesenteroides (Tier A) bzw. W. cibaria (Tier B) identifiziert. Die Analyse durch die Pulsfeldgelelektrophorese (PFGE) ergab ein identisches Smal/Apal-Profil für beide W.-cibaria-Isolate (Kuh B), das sich vom W.-paramesenteroides-Fingerprint der Kuh A unterschied (67% Ähnlichkeit). Diese Untersuchung verweist auf einen möglichen Zusammenhang zwischen dem Nachweis von Weissella spp. und dem Auftreten von Euterentzündungen beim Rind.

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Do, Kyung-Hyo, Kwangwon Seo, Sanggu Kim, et al. "Therapeutic Efficacy of Weissella cibaria CMU and CMS1 on Allergic Inflammation Exacerbated by Diesel Exhaust Particulate Matter in a Murine Asthma Model." Medicina 58, no. 9 (2022): 1310. http://dx.doi.org/10.3390/medicina58091310.

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Background and Objectives: Diesel exhaust particulate matter (DEPM) is an air pollutant that is associated with asthma. In this study, the therapeutic efficacy of Weissella cibaria strains CMU (Chonnam Medical University) and CMS (Chonnam Medical School) 1, together with the drug Synatura, an anti-tussive expectorant, was investigated in a murine asthma model exacerbated by DEPM. Materials and Methods: BALB/c mice were sensitized with ovalbumin (OVA) before intranasal challenge with OVA and DEPM. W. cibaria CMU, CMS1, and Synatura were administered orally for 21 days. Results: Neither Synatura nor W. cibaria strains affected spleen, liver, or lung weights. W. cibaria strains CMU and CMS1 significantly reduced the levels of interleukin (IL)-4, OVA-specific immunoglobulin E (IgE), and total lung collagen in bronchoalveolar lavage fluid (BALF), similar to those with Synatura, regardless of the oral dose concentration (p < 0.05). In addition, the W. cibaria CMU strain significantly alleviated IL-1β, IL-6, IL-12, monocyte chemotactic protein-1, and tumor necrosis factor-α in BALF, whereas the CMS1 strain significantly alleviated IL-10 and IL-12 in BALF (p < 0.05); however, Synatura did not show any statistical efficacy against them (p > 0.05). All concentrations of W. cibaria CMU and low concentrations of W. cibaria CMS1 significantly reduced lung bronchiolar changes and inflammatory cell infiltration. Conclusions: In conclusion, W. cibaria CMU in asthmatic mice showed better efficacy than W. cibaria CMS1 in improving asthma exacerbated by DEPM exposure, as well as better results than pharmaceuticals.

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Lee, Da-Eon, Hyo-Jeong Hwang, Yu-Na Jo, Tae-Hwan Jung, and Kyoung-Sik Han. "Enhancement of Viability of Weissella cibaria CMU by Low-Temperature Encapsulation." Journal of Milk Science and Biotechnology 36, no. 3 (2018): 171–77. http://dx.doi.org/10.22424/jmsb.2018.36.3.171.

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Tang, Ning, Xiaolong Xing, Huipin Li, Honggang Jiao, Shengxin Ji, and Zhilu Ai. "Effect of Alkali on the Microbial Community and Aroma Profile of Chinese Steamed Bread Prepared with Chinese Traditional Starter." Foods 12, no. 3 (2023): 617. http://dx.doi.org/10.3390/foods12030617.

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Alkali is an indispensable additive in Chinese steamed bread (CSB) production. This work aimed to evaluate the key roles of alkali in the microbial community of dough fermented using Chinese traditional starter (CTS) and the aroma profiles of CSB. The dominant fungi in CTS and fermented dough were members of the phylum Ascomycota and the genus Saccharomyces. Pediococcus, Companilactobacillus, and Weissella were the dominant bacterial genera in CTS and fermented dough. Adding alkali could retain the types of dominant yeasts and LAB derived from CTS, decrease the relative abundance of Companilactobacillus crustorum and Weissella cibaria, and increase that of Pediococcus pentosaceus, in fermented dough. Principal component analysis (PCA) indicated that adding alkali decreased the content of sourness-related volatiles in CSB fermented by CTS. Correlation analysis showed that Pediococcus and Weissella in fermented dough were positively correlated with the lipid oxidation flavor-related compounds in CSB, and Lactobacillus was positively correlated with sourness-related aroma compounds. Synthetic microbial community experiments indicated that CSB fermented by the starter containing P. pentosaceus possessed a strong aroma, and adding alkali weakened the flavor intensity. Alkali addition could promote the formation of ethyl acetate and methyl acetate with a pleasant fruity aroma in W. cibaria-associated CSB.

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Ahmed, Sadia, Sargun Singh, Vaidhvi Singh, Kyle D. Roberts, Arsalan Zaidi, and Alexander Rodriguez-Palacios. "The Weissella Genus: Clinically Treatable Bacteria with Antimicrobial/Probiotic Effects on Inflammation and Cancer." Microorganisms 10, no. 12 (2022): 2427. http://dx.doi.org/10.3390/microorganisms10122427.

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Weissella is a genus earlier considered a member of the family Leuconostocaceae, which was reclassified into the family Lactobacillaceae in 1993. Recently, there have been studies emphasizing the probiotic and anti-inflammatory potential of various species of Weissella, of which W. confusa and W. cibaria are the most representative. Other species within this genus include: W. paramesenteroides, W. viridescens, W. halotolerans, W. minor, W. kandleri, W. soli, W. ghanensis, W. hellenica, W. thailandensis, W. fabalis, W. cryptocerci, W. koreensis, W. beninensis, W. fabaria, W. oryzae, W. ceti, W. uvarum, W. bombi, W. sagaensis, W. kimchi, W. muntiaci, W. jogaejeotgali, W. coleopterorum, W. hanii, W. salipiscis, and W. diestrammenae. Weissella confusa, W. paramesenteroides, W. koreensis, and W. cibaria are among the few species that have been isolated from human samples, although the identification of these and other species is possible using metagenomics, as we have shown for inflammatory bowel disease (IBD) and healthy controls. We were able to isolate Weissella in gut-associated bacteria (post 24 h food deprivation and laxatives). Other sources of isolation include fermented food, soil, and skin/gut/saliva of insects/animals. With the potential for hospital and industrial applications, there is a concern about possible infections. Herein, we present the current applications of Weissella on its antimicrobial and anti-inflammatory mechanistic effects, the predisposing factors (e.g., vancomycin) for pathogenicity in humans, and the antimicrobials used in patients. To address the medical concerns, we examined 28 case reports focused on W. confusa and found that 78.5% of infections were bacteremia (of which 7 were fatal; 1 for lack of treatment), 8 were associated with underlying malignancies, and 8 with gastrointestinal procedures/diseases of which 2 were Crohn’s disease patients. In cases of a successful resolution, commonly administered antibiotics included: cephalosporin, ampicillin, piperacillin-tazobactam, and daptomycin. Despite reports of Weissella-related infections, the evolving mechanistic findings suggest that Weissella are clinically treatable bacteria with emerging antimicrobial and probiotic benefits ranging from oral health, skin care, obesity, and inflammatory diseases to cancer.

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Jang, Mi-Hee, та Myoung-Dong Kim. "Exploration of β-Glucosidase Activity of Lactic Acid Bacteria Isolated from Kimchi". Food Engineering Progress 14, № 3 (2010): 243–48. http://dx.doi.org/10.13050/foodengprog.2010.14.3.243.

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The β-glucosidase (E.C. 3.2.1.21) production capabilities of lactic acid bacteria isolated from a variety of kimchi (fermented vegetables) were examined. When grown in a medium containing cellobiose as carbon source, most lactic acid bacteria showed significantly higher intracellular levels of β-glucosidase than the extracellular levels. A maximum intracellular β-glucosidase activity of 3.7±0.5 (unit/mg protein) was obtained in the case of Weissella cibaria KFRI88010 isolated from kimchi. The optimum reaction conditions for W. cibaria KFRI88010 β-glucosidase activity were pH 5.0 and 37°C, and addition of divalent cations to the reaction mixture resulted in a notable decrease in enzyme activity. The β-glucosidase activity was enhanced twofold when W. cibaria KFRI88010 was grown in a medium containing fructose as compared with to a medium containing glucose or cellobiose.

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Lin, Shih-Ting, Li-Ting Wang, Yen-Chi Wu, et al. "Weissella muntiaci sp. nov., isolated from faeces of Formosan barking deer (Muntiacus reevesi)." International Journal of Systematic and Evolutionary Microbiology 70, no. 3 (2020): 1578–84. http://dx.doi.org/10.1099/ijsem.0.003937.

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A Gram-stain-positive strain, 8 H-2T, was isolated from faeces of Reeves’ muntjac (Muntiacus reevesi) barking deer in Taiwan. Cells of the strain were short rod-shaped, non-motile, non-haemolytic, asporogenous, facultatively anaerobic, heterofermentative and did not exhibit catalase and oxidase activities. Comparative analyses of 16S rRNA, pheS and dnaA gene sequences demonstrated that the novel strain was a member of the genus Weissella . On the basis of 16S rRNA gene sequence similarities, the type strains of Weissella oryzae (99.2 %), Weissella confusa (97.8 %), Weissella cibaria (97.6 %) and Weissella soli (97.3 %) were the closest neighbours to strain 8 H-2T. The concatenated housekeeping gene sequence (pheS and dnaA) similarities of 8 H-2T to closely related type strains were 72.5–84.9 %, respectively. The genomic DNA G+C content was 40.5 mol%. The average nucleotide identity and digital DNA–DNA hybridization values with these type strains were 70.2–75.4% and 25.1–30.1 %, respectively. Phenotypic and genotypic test results demonstrated that strain 8 H-2T represents a novel species belonging to the genus Weissella , for which the name Weissella muntiaci sp. nov. is proposed. The type strain is 8 H-2T (=BCRC 81133T=NBRC 113537T).

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Yu, Hyung-Seok, Na-Kyoung Lee, Ae-Jin Choi, Jeong-Sook Choe, Chun Ho Bae, and Hyun-Dong Paik. "Antagonistic and antioxidant effect of probiotic Weissella cibaria JW15." Food Science and Biotechnology 28, no. 3 (2018): 851–55. http://dx.doi.org/10.1007/s10068-018-0519-6.

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Li, Shiao-Wen, Yi-Sheng Chen, Yun-Shien Lee, et al. "Comparative genomic analysis of bacteriocin-producing Weissella cibaria 110." Applied Microbiology and Biotechnology 101, no. 3 (2017): 1227–37. http://dx.doi.org/10.1007/s00253-016-8073-8.

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Wang, Yvonne, Michael G. Gänzle, and Clarissa Schwab. "Exopolysaccharide Synthesized by Lactobacillus reuteri Decreases the Ability of Enterotoxigenic Escherichia coli To Bind to Porcine Erythrocytes." Applied and Environmental Microbiology 76, no. 14 (2010): 4863–66. http://dx.doi.org/10.1128/aem.03137-09.

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ABSTRACT This study investigated the therapeutic potential of bacterial polysaccharides by employing a model system based on enteroxigenic Escherichia coli (ETEC)-induced hemagglutination of erythrocytes. Exopolysaccharides produced by strains of Lactobacillus reuteri inhibited ETEC-induced hemagglutination of porcine erythrocytes. No effect was observed for dextran produced from Weissella cibaria and commercially available oligo- and polysaccharides.

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Safika, Safika, Wardinal Wardinal, Yulia Sari Ismail, Khairun Nisa, and Wenny Novita Sari. "Weissella, a novel lactic acid bacteria isolated from wild Sumatran orangutans (Pongo abelii)." July-2019 12, no. 7 (2019): 1060–65. http://dx.doi.org/10.14202/vetworld.2019.1060-1065.

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Aim: This study aimed to isolate and identify lactic acid bacteria (LAB) in wild Sumatran orangutans to provide more information about LAB diversity derived from Sumatran orangutan feces. Materials and Methods: Fecal sampling from three female orangutans, around 35 years old, was carried out in the wild forest areas at the research station of Suaq Belimbing Gunung Leuser National Park located in the South Aceh district. Orangutan fecal samples were taken in the morning when the orangutans first defecated. The orangutans were above the tree, which is approximately 12-15 m from the ground where feces were found. Results: Fermentation testing using the API 50 CHL Kit showed that OUL4 isolates were identified as Lactococcus lactis ssp. lactis with an identity value of 73.5%. Homology analysis demonstrated that the OUL4 isolates have 93% similarity to Weissella cibaria, and phylogenetic trees constructed using Mega 7.0 also showed that OUL4 isolates are related to W. cibaria. Conclusion: These results show that there is a difference in identification between biochemical testing with API kits and molecular analyses on LAB isolates from wild Sumatran orangutans. Based on 16S rRNA gene homology, the OUL4 LAB isolates from wild Sumatran orangutans have 93% homology to W. cibaria.

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Kang, Mi-Sun, Dong-Suk Lee, Myoungsuk Kim, Seung-Ah Lee, and Seoul-Hee Nam. "A Randomized, Double-Blind, Placebo-Controlled Trial to Assess the Acidogenic Potential of Dental Biofilms through a Tablet Containing Weissella cibaria CMU." International Journal of Environmental Research and Public Health 18, no. 9 (2021): 4674. http://dx.doi.org/10.3390/ijerph18094674.

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The possibility of preventing dental caries by taking probiotic bacterium Weissella cibaria (W. cibaria) CMU tablets to alter the pH of the dental plaque in the oral cavity was evaluated. A randomized, double-blind, placebo-controlled trial was performed on adults aged 20 years or older with 20 or more natural teeth. Ninety-two people underwent dental scaling before being randomly assigned to the experimental group (n = 49) or the control group (n = 43). Depending on the group they belonged to, W. cibaria CMU or the placebo was administered to them once daily for 8 weeks before bedtime. Twenty-four subjects were later excluded from the study because the week 8 dosing was not smoothly performed, for a final subject count of 68. The Cariview test was used to evaluate the amount of acid produced by the dental plaque to assess the risk of caries. The results showed that although there was no significant difference between the results of the two groups, the intake of the W. cibaria CMU tablets eliminated the risk of developing dental caries from acid production in the oral flora because the W. cibaria colonizes and lives in the dental plaque and the oral cavity and suppresses acids.

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Lakra, Avinash Kant, Latha Domdi, Gagan Hanjon, Younus Mohd Tilwani, and Venkatesan Arul. "Some probiotic potential of Weissella confusa MD1 and Weissella cibaria MD2 isolated from fermented batter." LWT 125 (May 2020): 109261. http://dx.doi.org/10.1016/j.lwt.2020.109261.

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Pereira, Gabriella do Vale, Gabriel Fernandes Alves Jesus, Felipe do Nascimento Vieira, et al. "Probiotic supplementation in diet and vaccination of hybrid surubim (Pseudoplatystoma reticulatum♀ x P. corruscans♂)." Ciência Rural 46, no. 2 (2016): 348–53. http://dx.doi.org/10.1590/0103-8478cr20150543.

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ABSTRACT: A supplementary diet with the probiotic bacteria Weissella cibaria on the efficacy of surubim hybrid immunization against a specific hemorrhagic septicemia caused by Aeromonas hydrophila was evaluated on the following treatments: fish fed a supplemented probiotic diet, vaccinated fish and vaccinated fish fed a supplemented probiotic diet, and untreated fish (control). Fish from the probiotic treatments were fed a diet containing W. cibaria for 41 days. On the 15th day of the experiment, fish from vaccine treatments were intraperitoneally vaccinated, with posterior oral booster for four days. One week after the oral booster, three fish from each experimental unit were sampled. The probiotic supplementation increased the number of thrombocytes and lysozyme concentration compared with surubim that did not receive W. cibaria in the diet. On the other hand, the vaccination increased agglutination titer, lysozyme concentration, and antimicrobial activity compared with surubim that were not vaccinated. However, there was no interaction between diet with probiotics and vaccination in the surubim hybrid in the analysed parameters.

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Eto, Silas F., Dayanne C. Fernandes, Michelli I. G. Funnicelli, et al. "Microglia extracellular traps in Oreochromis niloticus infected with Weissella cibaria." Fish & Shellfish Immunology 113 (June 2021): 148–53. http://dx.doi.org/10.1016/j.fsi.2021.03.020.

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Park, Ho-Eun, Kyung-Won Kang, Bum-Seok Kim, Sang-Myeong Lee, and Wan-Kyu Lee. "Immunomodulatory Potential of Weissella cibaria in Aged C57BL/6J Mice." Journal of Microbiology and Biotechnology 27, no. 12 (2017): 2094–103. http://dx.doi.org/10.4014/jmb.1708.08016.

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Lee, Kang Wook. "Purification and Characterization of Beta-Glucosidase from Weissella cibaria 37." Journal of Microbiology and Biotechnology 22, no. 12 (2012): 1705–13. http://dx.doi.org/10.4014/jmb.1206.06007.

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Kleppen, Hans Petter, Helge Holo, Sang-Rok Jeon, Ingolf F. Nes, and Sung-Sik Yoon. "Novel Podoviridae Family Bacteriophage Infecting Weissella cibaria Isolated from Kimchi." Applied and Environmental Microbiology 78, no. 20 (2012): 7299–308. http://dx.doi.org/10.1128/aem.00031-12.

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ABSTRACTThe first complete genome sequence of a phage infectingWeissella cibaria(Weissella kimchii) is presented. The bacteriophage ϕYS61 was isolated from kimchi, a Korean fermented vegetable dish. Bacteriophages are recognized as a serious problem in industrial fermentations; however, ϕYS61 differed from many virulent phages associated with food fermentations since it was difficult to propagate and was very susceptible to resistance development. Sequence analysis revealed that ϕYS61 resemblesPodoviridaeof the subfamilyPicovirinae. Within the subfamilyPicovirinae, the ϕ29-like phages have been extensively studied, and their terminal protein-primed DNA replication is well characterized. Our data strongly suggest that ϕYS61 also replicates by a protein-primed mechanism.Weissellaphage ϕYS61 is, however, markedly different from members of thePicovirinaewith respect to genome size and morphology.Picovirinaeare characterized by small (approximately 20-kb) genomes which contrasts with the 33,594-bp genome of ϕYS61. Based on electron microscopy analysis, ϕYS61 was classified as a member of thePodoviridaeof morphotype C2, similar to the ϕ29-like phages, but its capsid dimensions are significantly larger than those reported for these phages. The novelty of ϕYS61 was also emphasized by the low number of open reading frames (ORFs) showing significant similarity to database sequences. We propose that the bacteriophage ϕYS61 should represent a new subfamily within the familyPodoviridae.

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Rizzello, Carlo G., Rossana Coda, Yaqin Wang, et al. "Characterization of indigenous Pediococcus pentosaceus, Leuconostoc kimchii, Weissella cibaria and Weissella confusa for faba bean bioprocessing." International Journal of Food Microbiology 302 (August 2019): 24–34. http://dx.doi.org/10.1016/j.ijfoodmicro.2018.08.014.

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Llamas-Arriba, María Goretti, Annel M. Hernández-Alcántara, Mari Luz Mohedano, et al. "Lactic Acid Bacteria Isolated from Fermented Doughs in Spain Produce Dextrans and Riboflavin." Foods 10, no. 9 (2021): 2004. http://dx.doi.org/10.3390/foods10092004.

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Many lactic acid bacteria (LAB) produce metabolites with applications in the food industry, such as dextran-type exopolysaccharides (EPS) and riboflavin (vitamin B2). Here, 72 bacteria were isolated from sourdoughs made by Spanish bread-makers. In the presence of sucrose, colonies of 22 isolates showed a ropy phenotype, and NMR analysis of their EPS supported that 21 of them were dextran producers. These isolates were identified by their random amplified polymorphic DNA (RAPD) patterns and their rrs and pheS gene sequences as LAB belonging to four species (Weissella cibaria, Leuconostoc citreum, Leuconostoc falkenbergense and Leuconostoc mesenteroides). Six selected strains from the Leuconostoc (3) and Weissella (3) genera grew in the absence of riboflavin and synthesized vitamin B2. The EPS produced by these strains were characterized as dextrans by physicochemical analysis, and the L. citreum polymer showed an unusually high degree of branching. Quantification of the riboflavin and the EPS productions showed that the W. cibaria strains produce the highest levels (585–685 μg/and 6.5–7.4 g/L, respectively). Therefore, these new LAB strains would be good candidates for the development of fermented foods bio-fortified with both dextrans and riboflavin. Moreover, this is the first report of riboflavin and dextran production by L. falkenbergense.

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Quintanilla-Pineda, Mario, Jesús Díaz, Ana Gutiérrez-Falcon, Francisco C. Ibañez, and Florencio Marzo. "Profiling a New Postbiotic Product for Its Application in Fish Aquaculture." Fishes 8, no. 6 (2023): 304. http://dx.doi.org/10.3390/fishes8060304.

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Weissella cibaria is a lactic acid bacteria that has been receiving great interest in the last decade; however, its research into aquaculture remains insufficient. In this context, the resistance to pH 3–5, bile salts (10–20%), hydrophobicity, and carbohydrate metabolisms of two W. cibaria strains isolated from rainbow trout were evaluated. At the same time, the postbiotic products of both W. cibaria were produced under different conditions, and their stability to heat (95–130 °C) and proteolytic enzymes were determined. The low pH sensitivity of two pathogens (Aeromonas salmonicida subsp. salmonicida and Yersinia ruckeri) was also recorded. Both strains of W. cibaria survived pH and bile salt treatments. Neither expressed enzymatic activity or hydrophobic characteristics with the executed methods. Treatment with heat, enzymes, and transfer to vegetal broth significantly reduced (p < 0.05) the postbiotic product’s antibacterial activity. On the other hand, no significant difference (p < 0.05) was reported in antibacterial characteristics when postbiotics were produced by coculturing both strains. Low pH does not significantly influence pathogen growth (p < 0.05). Our findings suggest that the studied strains do not adjust as probiotics, but the postbiotic product obtained from them could become a promising tool as a supplement food for fish aquaculture applications.

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Srionnual, Sirinat, Fujitoshi Yanagida, Li-Hsiu Lin, Kuang-Nan Hsiao, and Yi-sheng Chen. "Weissellicin 110, a Newly Discovered Bacteriocin from Weissella cibaria 110, Isolated from Plaa-Som, a Fermented Fish Product from Thailand." Applied and Environmental Microbiology 73, no. 7 (2007): 2247–50. http://dx.doi.org/10.1128/aem.02484-06.

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ABSTRACT Weissella cibaria 110, isolated from the Thai fermented fish product plaa-som, was found to produce a bacteriocin active against some gram-positive bacteria. Bacteriocin activity was not eliminated by exposure to high temperatures or catalase but was destroyed by exposure to the proteolytic enzymes proteinase K and trypsin. The bacteriocin from W. cibaria 110 was purified, and sodium dodecyl sulfate-polyacrylamide gel electrophoresis showed that the purified bacteriocin contained one protein band that was approximately 2.5 kDa in size. Mass spectrometry analysis showed the mass of the peptide to be approximately 3,487.8 Da. N-terminal amino acid sequence analysis was performed, and 27 amino acids were identified. Because it has no similarity to other known bacteriocins, this bacteriocin was defined as a new bacteriocin and termed weissellicin 110.

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Oladejo, B. O., and H. M. Oluwasola. "Oral administration of Weissella and Pediococcus sp alleviates formalin induced inflammation in rats by Cytokine Modulation." Ife Journal of Science 23, no. 2 (2021): 95–104. http://dx.doi.org/10.4314/ijs.v23i2.10.

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This study was designed to study the cytokine modulatory activity of three lactic acid bacteria (LAB) strains, Weisella cibaria II-1-59, Weisella confusa JMC 1093, and Pediococcus pentosaceus DSM20336 isolated from a Nigerian locally fermented food condiment; “iru” using paw oedema acute inflammatory model induced with 1% formalin in Wistar rats. Rats were distributed into six groups (A-F). Rats in Groups A were neither administered formalin nor treated with LAB, while Group B received formalin injection only. Rats in Groups C, D, and E were administered formalin and were treated orally with 2 × 107 CFU/ml of Weisella cibaria II-1-59, Weisella confusa JMC 1093, and Pediococcus pentosaceus DSM20336 respectively, while Group F received diclofenac sodium treatment following administration of formalin. The dose of LAB strain used for the oral treatment was 2 × 107 CFU/ml for all the groups while the dose of diclofenac sodium used was 150 mg/kg body weight of the rats. Paw thickness (mm) was checked at t = 0, 1, 4, 8, 24, 72, 168 and 336 h. Cytokine assay for C-reactive protein (CRP), Interleukin (IL-10) and Transforming growth factor (TGF-β) was performed on serum samples of the rats using Enzyme-linked immunosorbent assay (ELISA). Oral administration of W. cibaria II-1-59 showed the best significant decrease in the paw thickness of the rats, which was followed by P. pentosaceus DSM20336 and W. confusa JMC 1093 respectively, and was shown to be statistically significant at P<0.05. There was also a significant decrease (below standard 2000 pg/ml) in the secretion of pro-inflammatory biomarker (CRP) in all LAB treated groups at 1 hour, while there was an increase in the serum levels of anti-inflammatory cytokines IL-10 and TGF- β in Groups C-E rats which was maximally increased in W. confusa JMC 1093 treated rats. This study suggests that W. cibaria II-1-59, W. confusa JMC 1093 and P. pentosaceus DSM20336 possess anti-inflammatory potentials. Keywords: Inflammation, Cytokines, Weisella, Formalin, Oedema, Pediococcus

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Lee, Ji Soo, In Kyung Hyun, Hye-Jin Seo, Dahyun Song, Min Young Kim, and Seok-Seong Kang. "Biotransformation of whey by Weissella cibaria suppresses 3T3-L1 adipocyte differentiation." Journal of Dairy Science 104, no. 4 (2021): 3876–87. http://dx.doi.org/10.3168/jds.2020-19677.

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Oh, Eun Young, and Sang-Myeong Lee. "Natural Killer Cell Activation by Weissella cibaria JW15 Isolated from Kimchi." Journal of Bacteriology and Virology 51, no. 2 (2021): 62–73. http://dx.doi.org/10.4167/jbv.2021.51.2.062.

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Lynch, Kieran M., Elke K. Arendt, Alan Lucid, Brigid Lucey, Roy D. Sleator, and Aidan Coffey. "Genomics of Weissella cibaria with an examination of its metabolic traits." Microbiology 161, no. 4 (2015): 914–30. http://dx.doi.org/10.1099/mic.0.000053.

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