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The Elimination of Viroids through In Vitro Thermotherapy and a Meristem Tip Culture from a New Limonime Hybrid (Citrus x limon var. limon (L.) Burm. f. x Citrus latifolia var. latifolia). 通过体外热疗和新柠檬杂交种(Citrus x limon var.
IF 2.7
BioTech Pub Date : 2024-09-23 DOI: 10.3390/biotech13030037
Virginia Sarropoulou, Katerina Grigoriadou, Varvara I Maliogka, Chrysoula-Lito Sassalou, Vasileios Ziogas
{"title":"The Elimination of Viroids through In Vitro Thermotherapy and a Meristem Tip Culture from a New Limonime Hybrid (<i>Citrus</i> x <i>limon</i> var. <i>limon</i> (L.) Burm. f. x <i>Citrus latifolia</i> var. <i>latifolia</i>).","authors":"Virginia Sarropoulou, Katerina Grigoriadou, Varvara I Maliogka, Chrysoula-Lito Sassalou, Vasileios Ziogas","doi":"10.3390/biotech13030037","DOIUrl":"https://doi.org/10.3390/biotech13030037","url":null,"abstract":"<p><p>Viruses and viroids pose a significant challenge in citriculture, and their control is crucial for plant health. This study evaluated the effectiveness of in vitro thermotherapy combined with a meristem tip culture for eliminating citrus exocortis viroid (CEVd) and hop stunt viroid (HSVd) from a new limonime hybrid (<i>Citrus</i> x <i>limon</i> var. <i>limon</i> x <i>Citrus latifolia</i> var. <i>latifolia</i>). The elimination success was confirmed by RT-PCR assays. The in vitro elimination rate for CEVd during the shoot proliferation stage (43%) was higher than for HSVd (21%). Accordingly, in the subsequent rooting stage, the in vitro elimination rate for CEVd (50%) was higher than for HSVd (33%). Successful CEVd and HSVd eradication at a 100% rate was confirmed in the ex vitro acclimatized plants in the greenhouse. The study also established an efficient micropropagation protocol. The optimal treatment for in vitro shoot induction was 0.5-2 mg L<sup>-1</sup> benzyladenine (BA) + 0.5 mg L<sup>-1</sup> gibberellic acid (GA<sub>3</sub>) + 0.25 mg L<sup>-1</sup> naphthalene acetic acid (NAA), while for shoot elongation, it was 0.5 mg L<sup>-1</sup> BA + 0.5 mg L<sup>-1</sup> kinetin (KIN) + 0.5 mg L<sup>-1</sup> GA<sub>3</sub> + 0.25 mg L<sup>-1</sup> NAA. Rooting was best promoted by 1 mg L<sup>-1</sup> NAA. This study provides valuable insights for the mass production of viroid-free propagation material in this new lemon x lime hybrid, contributing to the conservation of genetic resources in citrus breeding programs through the combined application of in vitro thermotherapy and an in vitro meristem tip culture, a novel and highlighted achievement reported for the first time in this study.</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11430235/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142355555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clinical Evaluation of AMNIODERM+® Wound Dressing Containing Non-Viable Human Amniotic Membrane: Retrospective-Perspective Clinical Trial. 含有无菌人羊膜的 AMNIODERM+® 伤口敷料的临床评估:回顾性-前瞻性临床试验。
IF 2.7
BioTech Pub Date : 2024-09-19 DOI: 10.3390/biotech13030036
Iveta Schmiedova, Petr Slama, Alena Dembickaja, Beata Kozova, Vendula Hyneckova, Sona Gogolkova, Elen Stastna, Michal Zahradnicek, Stefan Savic, Arash Davani, Edward Hulo, Emil Martinka
{"title":"Clinical Evaluation of AMNIODERM+<sup>®</sup> Wound Dressing Containing Non-Viable Human Amniotic Membrane: Retrospective-Perspective Clinical Trial.","authors":"Iveta Schmiedova, Petr Slama, Alena Dembickaja, Beata Kozova, Vendula Hyneckova, Sona Gogolkova, Elen Stastna, Michal Zahradnicek, Stefan Savic, Arash Davani, Edward Hulo, Emil Martinka","doi":"10.3390/biotech13030036","DOIUrl":"10.3390/biotech13030036","url":null,"abstract":"<p><p>Chronic wounds result from the body's inability to heal, causing pain, pathogen entry, limited treatment options, and societal burden. Diabetic foot ulcers are particularly challenging, often leading to severe complications like leg amputation. A clinical study tested AMNIODERM+<sup>®</sup>, a new device with a lyophilized human amniotic membrane (HAM), on chronic diabetic foot ulcers. Participants had diabetic neuropathic or neuroischemic leg wounds (2-16 cm<sup>2</sup>) unhealed by 20% after six weeks of standard care. This study showed significant wound healing improvements with AMNIODERM+<sup>®</sup>. The median wound size reduction after 12 weeks was 95.5%, far exceeding the null hypothesis of 20% change. Additionally, 65% of patients achieved complete ulceration healing, surpassing the 50% efficacy requirement. The median time to full closure was 11.4 weeks, with the proportion of completely healed patients rising progressively, reaching 55% by week 11. These findings, from the clinical trial \"Freeze-dried amniotic membrane in the treatment of nonhealing wounds\", suggest AMNIODERM+<sup>®</sup> as a promising future treatment for chronic diabetic foot ulcers. The published results were obtained as part of a clinical trial entitled \"Freeze-dried amniotic membrane in the treatment of nonhealing wounds: a single-arm, retrospectively-perspective clinical trial\", EUDAMED Nr. CIV-SK-22-10-041146.</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11417787/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142297150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simultaneous Production of Biogas and Electricity from Anaerobic Digestion of Pine Needles: Sustainable Energy and Waste Management. 松针厌氧消化同时产生沼气和电力:可持续能源与废物管理。
IF 2.7
BioTech Pub Date : 2024-09-05 DOI: 10.3390/biotech13030035
Deepak Sharma, Rishi Mahajan, Vikas Baghel, Saurabh Bansal, Vishal Ahuja, Gunjan Goel
{"title":"Simultaneous Production of Biogas and Electricity from Anaerobic Digestion of Pine Needles: Sustainable Energy and Waste Management.","authors":"Deepak Sharma, Rishi Mahajan, Vikas Baghel, Saurabh Bansal, Vishal Ahuja, Gunjan Goel","doi":"10.3390/biotech13030035","DOIUrl":"10.3390/biotech13030035","url":null,"abstract":"<p><p>Power scarcity and pollution can be overcome with the use of green energy forms like ethanol, biogas, electricity, hydrogen, etc., especially energy produced from renewable and industrial feedstocks. In hilly areas, pine needles are the most abundant biomass that has a low possibility of valorization due to high lignin content. On the other hand, anaerobic digestion (AD) of lignin and animal waste has low biogas yield due to poor conductivity. This study focuses on the simultaneous production of biogas and electricity through the co-digestion of cow dung and pine needles. The digester was initially established and stabilized in the lab to ensure a continuous supply of inoculum throughout the experiment. The optimization process involved the determination of an ideal cow dung-to-water ratio and selecting the appropriate conductive material that can enhance the energy generation from the feedstock. Afterward, both batch and continuous anaerobic digestion experiments were conducted. The results revealed that the addition of powdered graphite (5 mM), activated charcoal (15 mM), and biochar (25 mM) exhibited maximum voltage of 0.71 ± 0.013 V, 0.56 ± 0.013 V, and 0.49 ± 0.011 V on the 30th, 25th and 20th day of AD, respectively. The batch experiment showed that 5 mM graphite powder enhanced electron transfer in the AD process and generated a voltage of 0.77 ± 0.014 V on the 30th day, indicating an increase of ~1.5-fold as compared to the control (0.56 ± 0.019 V). The results from the continuous AD process showed that the digester with cow dung, pine needle, and a conductive material in combination exhibited the maximum voltage of 0.76 ± 0.012 V on the 21st day of AD, while the digester with cow dung only exhibited a maximum voltage of 0.62 ± 0.015 V on the 22nd day of AD, representing a 1.3-fold increase over the control. Furthermore, the current work used discarded plastic items and electrodes from spent batteries to emphasize waste management and aid in attaining sustainable energy and development goals.</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11417778/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142297153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Data Management in Biobanking: Strategies, Challenges, and Future Directions. 生物库数据管理:战略、挑战和未来方向。
IF 2.7
BioTech Pub Date : 2024-09-02 DOI: 10.3390/biotech13030034
Ramez Alkhatib, Karoline I Gaede
{"title":"Data Management in Biobanking: Strategies, Challenges, and Future Directions.","authors":"Ramez Alkhatib, Karoline I Gaede","doi":"10.3390/biotech13030034","DOIUrl":"10.3390/biotech13030034","url":null,"abstract":"<p><p>Biobanking plays a pivotal role in biomedical research by providing standardized processing, precise storing, and management of biological sample collections along with the associated data. Effective data management is a prerequisite to ensure the integrity, quality, and accessibility of these resources. This review provides a current landscape of data management in biobanking, discussing key challenges, existing strategies, and potential future directions. We explore multiple aspects of data management, including data collection, storage, curation, sharing, and ethical considerations. By examining the evolving technologies and methodologies in biobanking, we aim to provide insights into addressing the complexities and maximizing the utility of biobank data for research and clinical applications.</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11417763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142297151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From Sequence to Solution: Intelligent Learning Engine Optimization in Drug Discovery and Protein Analysis. 从序列到解决方案:药物发现和蛋白质分析中的智能学习引擎优化。
IF 2.7
BioTech Pub Date : 2024-09-01 DOI: 10.3390/biotech13030033
Jamal Raiyn, Adam Rayan, Saleh Abu-Lafi, Anwar Rayan
{"title":"From Sequence to Solution: Intelligent Learning Engine Optimization in Drug Discovery and Protein Analysis.","authors":"Jamal Raiyn, Adam Rayan, Saleh Abu-Lafi, Anwar Rayan","doi":"10.3390/biotech13030033","DOIUrl":"10.3390/biotech13030033","url":null,"abstract":"<p><p>This study introduces the intelligent learning engine (ILE) optimization technology, a novel approach designed to revolutionize screening processes in bioinformatics, cheminformatics, and a range of other scientific fields. By focusing on the efficient and precise identification of candidates with desirable characteristics, the ILE technology marks a significant leap forward in addressing the complexities of candidate selection in drug discovery, protein classification, and beyond. The study's primary objective is to address the challenges associated with optimizing screening processes to efficiently select candidates across various fields, including drug discovery and protein classification. The methodology employed involves a detailed algorithmic process that includes dataset preparation, encoding of protein sequences, sensor nucleation, and optimization, culminating in the empirical evaluation of molecular activity indexing, homology-based modeling, and classification of proteins such as G-protein-coupled receptors. This process showcases the method's success in multiple sequence alignment, protein identification, and classification. Key results demonstrate the ILE's superior accuracy in protein classification and virtual high-throughput screening, with a notable breakthrough in drug development for assessing drug-induced long QT syndrome risks through hERG potassium channel interaction analysis. The technology showcased exceptional results in the formulation and evaluation of novel cancer drug candidates, highlighting its potential for significant advancements in pharmaceutical innovations. The findings underline the ILE optimization technology as a transformative tool in screening processes due to its proven effectiveness and broad applicability across various domains. This breakthrough contributes substantially to the fields of systems optimization and holds promise for diverse applications, enhancing the process of selecting candidate molecules with target properties and advancing drug discovery, protein classification, and modeling.</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11417716/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142297152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Auxin-Producing Bacteria Used as Microbial Biostimulants Improve the Growth of Tomato (Solanum lycopersicum L.) Seedlings in Hydroponic Systems. 作为微生物生物刺激剂的产素细菌可改善水培系统中番茄(Solanum lycopersicum L.)幼苗的生长。
IF 2.7
BioTech Pub Date : 2024-08-21 DOI: 10.3390/biotech13030032
Livia Pappalettere, Susanna Bartolini, Annita Toffanin
{"title":"Auxin-Producing Bacteria Used as Microbial Biostimulants Improve the Growth of Tomato (<i>Solanum lycopersicum</i> L.) Seedlings in Hydroponic Systems.","authors":"Livia Pappalettere, Susanna Bartolini, Annita Toffanin","doi":"10.3390/biotech13030032","DOIUrl":"10.3390/biotech13030032","url":null,"abstract":"<p><p>Seven auxin-producing endophytic bacterial strains (<i>Azospirillum</i> spp., <i>Methylobacterium symbioticum</i>, <i>Bacillus</i> spp.), and two different combinations of these strains were used to verify their influence on tomato during germination and development in hydroponic conditions where, as a novelty for Canestrino di Lucca cultivar, endophytic bacteria were inoculated. To emphasize the presence of bacterial auxins in roots and stems of seedlings, both in situ staining qualitative assessment and quantitative analysis were carried out. Moreover, hypogeal and epigeal growth of the plantlets were measured, and correlation analyses were conducted to examine the relationship between the amount of indolacetic acid (IAA) produced by the bacterial strains and root and stem parameters. Plantlets treated with microbial inoculants showed a significant increase in the survival rate compared to the control treatment. The best results as IAA producers were from <i>Azospirillum baldaniorum</i> Sp245 and <i>A. brasilense</i> Cd, which also induced significant root growth. On the other hand, <i>Bacillus amyloliquefaciens</i> and <i>B. licheniformis</i> induced the best rates in stem growth. These findings highlight the potential for using endophytic bacterial strains in a hydroponic co-cultivation system that enables inoculating plantlets, at an early stage of growth (5 days old).</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11348165/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Principle Investigation and Method Standardization of Inhibition Zone Assay Based on Antimicrobial Peptides Extracted from Black Soldier Fly Larvae 基于从黑剑蝇幼虫中提取的抗菌肽的抑菌区测定原理研究和方法标准化
IF 2.7
BioTech Pub Date : 2024-08-09 DOI: 10.3390/biotech13030031
Wenyue Shen, Ranxia Xue, Yanxia Liu, Shibo Sun, Xi Chen, Dongye Sun, Ouyang Han, Yuxin Li, Jianqiang Xu, Xiaoying Dong, Fengyun Ji, Weiping Xu
{"title":"Principle Investigation and Method Standardization of Inhibition Zone Assay Based on Antimicrobial Peptides Extracted from Black Soldier Fly Larvae","authors":"Wenyue Shen, Ranxia Xue, Yanxia Liu, Shibo Sun, Xi Chen, Dongye Sun, Ouyang Han, Yuxin Li, Jianqiang Xu, Xiaoying Dong, Fengyun Ji, Weiping Xu","doi":"10.3390/biotech13030031","DOIUrl":"https://doi.org/10.3390/biotech13030031","url":null,"abstract":"The black soldier fly is a valuable resource insect capable of transforming organic waste while producing antimicrobial peptides (AMPs). The inhibition zone assay (IZA) is a method used to demonstrate the antimicrobial activity of AMPs. This study aimed to examine the experimental principles and establish a standardized IZA method. Results indicated that the AMPs extract consisted of proteins ranging in molecular weights from 0 to 40 kDa. The AMPs diffused radially on an agar plate through an Oxford cup. The diffusion radius was influenced by the concentration and volume of the AMPs but ultimately determined by the mass of the AMPs. The swabbing method was found to be effective for inoculating bacteria on the agar plate. Among the conditions tested, the plate nutrient concentration was the most sensitive factor for the IZA, followed by bacterial concentration and incubation time. Optimal conditions for the IZA included a nutrient plate of 0.5× TSA, a bacterial concentration of 106 CFU/mL, and an incubation time of 12 h, with oxytetracycline (OTC) at 0.01 mg/mL serving as the positive control. The antimicrobial-specific activity of AMPs could be standardized by the ratio of inhibition zone diameters between AMPs and OTC. These findings contribute to the standardization of the IZA method for profiling the antimicrobial activity of AMPs.","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141925362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CleanUpRNAseq: An R/Bioconductor Package for Detecting and Correcting DNA Contamination in RNA-Seq Data. CleanUpRNAseq:用于检测和校正 RNA-Seq 数据中 DNA 污染的 R/Bioconductor 软件包。
IF 2.7
BioTech Pub Date : 2024-08-03 DOI: 10.3390/biotech13030030
Haibo Liu, Kai Hu, Kevin O'Connor, Michelle A Kelliher, Lihua Julie Zhu
{"title":"CleanUpRNAseq: An R/Bioconductor Package for Detecting and Correcting DNA Contamination in RNA-Seq Data.","authors":"Haibo Liu, Kai Hu, Kevin O'Connor, Michelle A Kelliher, Lihua Julie Zhu","doi":"10.3390/biotech13030030","DOIUrl":"10.3390/biotech13030030","url":null,"abstract":"<p><p>RNA sequencing (RNA-seq) has become a standard method for profiling gene expression, yet genomic DNA (gDNA) contamination carried over to the sequencing library poses a significant challenge to data integrity. Detecting and correcting this contamination is vital for accurate downstream analyses. Particularly, when RNA samples are scarce and invaluable, it becomes essential not only to identify but also to correct gDNA contamination to maximize the data's utility. However, existing tools capable of correcting gDNA contamination are limited and lack thorough evaluation. To fill the gap, we developed CleanUpRNAseq, which offers a comprehensive set of functionalities for identifying and correcting gDNA-contaminated RNA-seq data. Our package offers three correction methods for unstranded RNA-seq data and a dedicated approach for stranded data. Through rigorous validation on published RNA-seq datasets with known levels of gDNA contamination and real-world RNA-seq data, we demonstrate CleanUpRNAseq's efficacy in detecting and correcting detrimental levels of gDNA contamination across diverse library protocols. CleanUpRNAseq thus serves as a valuable tool for post-alignment quality assessment of RNA-seq data and should be integrated into routine workflows for RNA-seq data analysis. Its incorporation into OneStopRNAseq should significantly bolster the accuracy of gene expression quantification and differential expression analysis of RNA-seq data.</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11348166/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular Insight into the Response of Lactic Acid Bacteria to Bile Acids. 乳酸菌对胆汁酸反应的分子洞察力
IF 2.7
BioTech Pub Date : 2024-08-02 DOI: 10.3390/biotech13030029
Caren N Moreno, Jorge N Gomez, María P Taranto, Ana E Ledesma, Ana Y Bustos
{"title":"Molecular Insight into the Response of Lactic Acid Bacteria to Bile Acids.","authors":"Caren N Moreno, Jorge N Gomez, María P Taranto, Ana E Ledesma, Ana Y Bustos","doi":"10.3390/biotech13030029","DOIUrl":"10.3390/biotech13030029","url":null,"abstract":"<p><p>Bile acids (BAs) are the main endogenous modulators of the composition and metabolic activity of the intestinal microbiota. In the present work, the effect of conjugated (glycodeoxycholic, glycocholic, taurodeoxycholic, taurocholic acids) and free BAs [cholic acid (CA) and deoxycholic acid (DCA)] on the survival, biological molecules, and structural and surface properties of two potential probiotic lactic acid bacteria (LAB) was evaluated. For this, viability assays, Raman spectroscopy, scanning electron microscopy (SEM), and zeta potential (ZP) measurements were employed. Our results evidenced that free BAs were more toxic than conjugates, with CA being significantly more harmful than deoxycholic acid (DCA). RAMAN studies show that BAs modify the bands corresponding to proteins, lipids, carbohydrates, and DNA. SEM showed that BAs cause surface distortions with depressions and fold formation, as well as incomplete cell division. DCA was the one that least altered the ZP of bacteria when compared to CA and taurodeoxycholic acid, with gradual changes towards more positive values. In general, the magnitude of these effects was different according to the BA and its concentration, being more evident in the presence of CA, even at low concentrations, which would explain its greater inhibitory effect. This work provides solid evidence on the effects of BAs on LAB that will allow for the development of strategies by which to modulate the composition of the microbiota positively.</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11348023/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Removal of Cadmium (II) from Aqueous Solution Using Galdieria sulphuraria CCMEE 5587.1. 利用 Galdieria sulphuraria 去除水溶液中的镉(II) CCMEE 5587.1.
IF 2.7
BioTech Pub Date : 2024-08-01 DOI: 10.3390/biotech13030028
Hari Lal Kharel, Lina Jha, Melissa Tan, Thinesh Selvaratnam
{"title":"Removal of Cadmium (II) from Aqueous Solution Using <i>Galdieria sulphuraria</i> CCMEE 5587.1.","authors":"Hari Lal Kharel, Lina Jha, Melissa Tan, Thinesh Selvaratnam","doi":"10.3390/biotech13030028","DOIUrl":"10.3390/biotech13030028","url":null,"abstract":"<p><p>The release of cadmium into the environment is a significant global concern due to its toxicity, non-biodegradability, and persistence in nature. There is an urgent need for effective, eco-friendly, and cost-effective systems for removing Cd because of the many drawbacks of conventional physicochemical techniques. This study investigated the ability of the extremophile red microalgal strain <i>Galdieria sulphuraria</i> CCMEE 5587.1 to tolerate and remove Cd (II) ions at acidic pH in a controlled laboratory environment. Three distinct concentrations of Cd (1.5 mg L<sup>-1</sup>, 3 mg L<sup>-1</sup>, and 6 mg L<sup>-1</sup>) were introduced to the cyanidium medium, and <i>G. sulphuraria</i> cells were introduced in the medium and grown for ten days. Four distinct aspects were identified regarding Cd removal: time course Cd removal, total Cd removal, extracellular Cd removal, and intracellular Cd removal. The inhibitory effects of Cd on <i>G. sulphuraria</i> growth were observed using a daily growth profile. Initial incubation days showed an inhibition of <i>G. sulphuraria</i> growth. In addition, increasing the Cd concentration in the medium decreased the growth rate of <i>G. sulphuraria</i>. Rapid Cd removal occurred on the first day of the experiment, followed by a steady removal of Cd until the last day. The highest total removal efficiency occurred in a medium containing 3 mg L<sup>-1</sup> of Cd ions, which was 30%. In contrast, the highest sorption capacity occurred in a medium containing 6 mg L<sup>-1</sup> of Cd ions, which was 1.59 mg g<sup>-1</sup> of dry biomass. In all media compositions, a major fraction (>80%) of Cd removal occurred via adsorption on the cell surface (extracellular). These results showed that <i>G. sulphuraria</i> cells can remove Cd ions from aqueous solution, which makes them a potential bioremediation option for heavy metal removal.</p>","PeriodicalId":34490,"journal":{"name":"BioTech","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11348382/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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