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World Journal of Microbiology and Biotechnology
Resumen/Descripción – provisto por la editorial en inglés
World Journal of Microbiology & Biotechnology publishes research papers, short communications and review articles on all aspects of applied microbiology and biotechnology. Virological, veterinary and clinical topics however are outside the scope of the journal. The Journal provides a forum for research work directed towards microbiological and biotechnological solutions to global problems encouraging contributions from all scientists from all across the globe who have an interest in tackling them. As many global issues, for example improving crop productivity, public health and waste management, have more acute consequences in the developing world, the Journal emphasizes the role of biotechnological advances, for and from developing regions.Palabras clave – provistas por la editorial
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Disponibilidad
| Institución detectada | Período | Navegá | Descargá | Solicitá |
|---|---|---|---|---|
| No detectada | desde ene. 1997 / hasta dic. 2023 | SpringerLink |
Información
Tipo de recurso:
revistas
ISSN impreso
0959-3993
ISSN electrónico
1573-0972
Editor responsable
Taylor & Francis Group (TFG)
País de edición
Reino Unido
Fecha de publicación
1990-
Cobertura temática
Tabla de contenidos
Microbial activity of lactic acid bacteria and hydrogen producers mediated by pH and total solids during the consolidated bioprocessing of agave bagasse
Karol Dudek; Cecilia Lizeth Álvarez Guzmán; Idania Valdez-Vazquez
<jats:title>Abstract</jats:title><jats:p>Lactic acid bacteria (LAB) coexist with <jats:italic>Clostridium</jats:italic> spp. in hydrogen production processes from complex substrates; however, the role of LAB is still unclear. This study analyzed the fermentation products in a wide range of initial pH (pH<jats:sub>i</jats:sub>, 5.5–6.9) and total solids (TS%, 8–22%) to determine the activity of these two microbial groups over time (from 24 to 120 h). Agave bagasse served as the feedstock for hydrogen production via consolidated bioprocess (CBP), while the inoculum source was the indigenous mature microbiota. In the early stage of the CBP, hydrogen production from lactic acid occurred only at pH<jats:sub>i</jats:sub> ≥ 6.0 (ρ = 0.0004) with no effect of TS%; lactic acid accumulated below this pH<jats:sub>i</jats:sub> value. In this stage, lactic acid production positively correlated with a first cluster of LAB represented by <jats:italic>Paucilactobacillus</jats:italic> (<jats:italic>r</jats:italic> = 0.64) and <jats:italic>Bacillus</jats:italic> (<jats:italic>r</jats:italic> = 0.81). After 72 h, hydrogen production positively correlated with a second group of LAB led by <jats:italic>Enterococcus</jats:italic> (<jats:italic>r</jats:italic> = 0.71) together with the hydrogen producer <jats:italic>Clostridium sensu stricto</jats:italic> 1 (<jats:italic>r</jats:italic> = 0.8) and the acetogen <jats:italic>Syntrophococcus</jats:italic> (<jats:italic>r</jats:italic> = 0.52) with the influence of TS% (ρ < 0.0001). A further experiment showed that buffering the pH to 6.5 increased and lengthened the lactic acid production, doubling the hydrogen production from 20 to 41 mL H<jats:sub>2</jats:sub>/gTS<jats:sub>added</jats:sub>. This study confirmed the prevalence of distinct groups of LAB over time, whose microbial activity promoted different routes of hydrogen production.</jats:p>
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
Progress in research on the biosynthesis of 1,2,4-butanetriol by engineered microbes
Xiangyu Ma; Chao Sun; Mo Xian; Jing Guo; Rubing Zhang
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
Recent challenges in biological cyanidation and oxidation of sulfide-based refractory gold ore
Mohammad Hossein Karimi Darvanjooghi; Sara Magdouli; Satinder Kaur Brar
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
A novel Lactiplantibacillus plantarum strain: probiotic properties and optimization of the growth conditions by response surface methodology
Gökhan Gurur Gökmen
; Seda Sarıyıldız; Remzi Cholakov; Ayşe Nalbantsoy; Biray Baler; Emek Aslan; Ahmet Düzel; Sait Sargın; Yekta Göksungur; Duygu Kışla
<jats:title>Abstract</jats:title><jats:p>The objective of this study is to explore the probiotic properties and optimal growth conditions of <jats:italic>Lactiplantibacillus plantarum</jats:italic> BG24. <jats:italic>L. plantarum</jats:italic> BG24 exhibited a remarkable ability to utilize lactose, and to grow under acidic conditions and in the presence of high levels of bile salts. The strain showed the highest antibacterial activity against <jats:italic>L. monocytogenes</jats:italic> Scott A (zone of inhibition: 26 mm). <jats:italic>L. plantarum</jats:italic> BG24 was found to be resistant to 8 of the tested 19 antibiotics using the disc diffusion method.and its multiple antibiotic resistance (MAR) index was calculated as 0.421. The adhesion rate to human intestinal epithelial Caco-2 cells was determined as 37.51%. The enzyme profile of <jats:italic>L. plantarum</jats:italic> BG24 was investigated using API ZYM test kit and the highest enzymatic activities were found for Leucine arylamidase, β-glucosidase, Valine arylamidase, β-galactosidase and N-acetyl-β-glucosaminidase. <jats:italic>L. plantarum</jats:italic> BG24 strain showed higher microbial growth under static conditions (6.60 OD<jats:sub>600</jats:sub>) compared to 100 rpm (5.73 OD<jats:sub>600</jats:sub>) and 200 rpm (5.02 OD<jats:sub>600</jats:sub>) shaking speed due to its facultative anaerobic characteristic. However, different inoculation rates and glucose addition did not make a statistically significant difference on biomass formation (p > 0.05). The specific growth rate of <jats:italic>L. plantarum</jats:italic> BG24 was 0.416 h<jats:sup>−1</jats:sup>, the doubling time was 1.67 h, and the biomass productivity value was 0.14 gL<jats:sup>−1</jats:sup> h<jats:sup>−1</jats:sup> in the original MRS broth (pH 5.7) while higher values were found as 0.483 h<jats:sup>−1</jats:sup>, 1.43 h and 0.17 gL<jats:sup>−1</jats:sup> h<jats:sup>−1</jats:sup>, respectively, in MRS broth (pH 6.5) medium enriched with 5 g/L yeast extract. The stirred tank bioreactor was used to optimise the growth of BG24 strain. The process variables was optimized at 0.05 vvm of aeration rate, 479 rpm of agitation speed, 3% of inoculation rate and 18 h of incubation time. The maximum biomass (g/L) production was obtained as 3.84 g/L at the optimized conditions.</jats:p>
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
Manipulation and epigenetic control of silent biosynthetic pathways in actinobacteria
Sanaz Karimian; Navid Farahmandzad; Fatemeh Mohammadipanah
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
An oxalate decarboxylase-like cupin domain containing protein is involved in imparting acid stress tolerance in Bacillus amyloliquefaciens MBNC
Naimisha Chowdhury; Romen Singh Naorem; Dibya Jyoti Hazarika; Gunajit Goswami; Abhisek Dasgupta; Sudipta Sankar Bora; Robin Chandra Boro; Madhumita Barooah
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
Genomic features and comparative analysis of a multidrug-resistant Acinetobacter bereziniae strain infecting an animal: a novel emerging one health pathogen?
Eliana Guedes Stehling; Fábio P. Sellera; Otávio Guilherme Gonçalves de Almeida; Irys Hany Lima Gonzalez; Patrícia Locosque Ramos; Nathália Gonsales da Rosa-Garzon; Marcia Regina von Zeska Kress; Hamilton Cabral; João Pedro Rueda Furlan
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
Indigo production goes green: a review on opportunities and challenges of fermentative production
Neha Chandel; Bharat Bhushan Singh; Chetna Dureja; Yung-Hun Yang; Shashi Kant Bhatia
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
Fruit residues as substrates for single-cell oil production by Rhodococcus species: physiology and genomics of carbohydrate catabolism
O. Marisa Herrero; Héctor M. Alvarez
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible
Human associated Archaea: a neglected microbiome worth investigating
Abraham Guerra
Palabras clave: Applied Microbiology and Biotechnology; General Medicine; Physiology; Biotechnology.
Pp. No disponible