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Biological activities of green coffee nanoemulsions evaluated through alternative methods: MTT, cellular proliferation, and HET-CAM assays 绿咖啡纳米乳的生物活性通过MTT、细胞增殖和HET-CAM检测来评估
Pub Date : 2023-01-01 DOI: 10.4322/biori.00112023
Elizandra Bruschi Buzanello, Susane Lopes Daniela Sousa Coelho Ana Paula Voyten, Simone Fanan, Letícia Mazzarino, Marcelo Maraschin
Green coffee (Coffea arabica) has been widely explored by the cosmetic industry for its beneficial properties to the skin. The oil from coffee beans helps in hydration by retaining the lipids of the stratum corneum forming a barrier to the water in the skin, also preventing the aging. The green coffee paste also has positive implications in the development of cosmetic products with high biological activity, i.e., anti bacterial, antioxidant, proliferative, and aiding skin healing. This study aims to explore the synergistic effects of coffee constituents by investigating green coffee nanoemulsions. The evaluation will focus on their impact on cell proliferation, viability, as well as the potential risk of eye irritation. The findings will contribute to establishing the safety and efficacy criteria necessary for incorporating these nanoemulsions into cosmetic products. The nanoemulsions were approximately 200 nm in size, with monodispersive characteristics, and negative charged. In vitro biological tests showed that green coffee nanoemulsions had low cytotoxicity, stimulate cell proliferation and did not show eye irritation by the alternative methods to animal use that have been tested. The study demonstrated promising potential, but further research is necessary for its practical incorporation into the industry.
绿咖啡(阿拉比卡咖啡)因其对皮肤有益的特性而被化妆品行业广泛探索。咖啡豆中的油通过保留角质层的脂质来帮助补水,形成皮肤水分的屏障,也可以防止衰老。绿咖啡膏在开发具有高生物活性的化妆品方面也有积极的意义,即抗菌、抗氧化、增殖和帮助皮肤愈合。本研究旨在通过研究绿咖啡纳米乳来探讨咖啡成分的协同作用。评估将侧重于它们对细胞增殖、生存能力的影响,以及对眼睛刺激的潜在风险。这些发现将有助于建立将这些纳米乳剂纳入化妆品所需的安全性和有效性标准。纳米乳液尺寸约为200 nm,具有单色散特性,带负电荷。体外生物试验表明,绿咖啡纳米乳剂具有低细胞毒性,刺激细胞增殖,并且通过已进行的动物试验替代方法不会对眼睛产生刺激。该研究显示了良好的潜力,但要将其实际应用于工业,还需要进一步的研究。
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引用次数: 0
Antiparasitic activity of lipid extracts from the subantarctic macroalgae Iridea cordata against Trichomonas vaginalis 亚南极大藻Iridea cordata脂质提取物对阴道毛滴虫的抗寄生活性
Pub Date : 2023-01-01 DOI: 10.4322/biori.00102023
Tallyson Nogueira Barbosaa, Mara Thais de Oliveira Silvaa, Ângela Sena-Lopesa, Frederico Schmitt Kremerb, Cláudio Martin Pereira de Pereirac, Fernanda Severo Sabedra Sousad, Fabiana Kommling Seixasd, Tiago Veiras Collaresd, Sibele Borsuka
In this study, we demonstrate the promising antiparasitic activity of natural extracts as an alternative treatment for trichomoniasis. We evaluated the in vitro and in silico antiparasitic activity of Iridea cordata extracts, obtained in two distinct development phases: Iridea cordata tetrasporaphyte phase (IFT) and Iridea cordata cystocarp phase (IFC). To determine the minimum inhibitory concentration (MIC) and 50% inhibitory concentration (IC50), we tested five concentrations of the extracts against Trichomonas vaginalis (ATCC 30236). To gain insights into the mechanisms underlying the antiparasitic activity and possible adverse effects, the extracts were subjected to cytotoxicity assays in VERO and human vaginal epithelial (HVMII) cells, gene expression analyses, and their components’ interactions with T. vaginalis proteins were analyzed through molecular docking. In the in vitro biological assay, IFT and IFC exhibited a MIC of 600 μg/mL while showing an IC50 of 150 μg/mL and 300 μg/mL and inhibiting 80% and 97% of T. vaginalis trophozoites, respectively. Importantly, no cytotoxic effects were observed on VERO and HMVII cells for IFC and IFT at 600 μg/mL, indicating their safety. IFC and IFT induced significant differences in gene expression compared to the negative control, DMSO, and metronidazole, suggesting their potential modulation of T. vaginalis genes. Moreover, in silico analysis revealed that constituents of both extracts interacted, with significant free-binding energy, with proteins that are important for T. vaginalis survival. Overall, this study provides evidence of the antiparasitic activity of Iridea cordata extracts against T. vaginalis and supports further evaluation of its extracts as a promising treatment for trichomoniasis.
在这项研究中,我们证明了天然提取物作为滴虫病的替代治疗有希望的抗寄生虫活性。本研究评价了鸢尾四葡萄期(IFT)和鸢尾囊壳期(IFC)两个不同发育阶段鸢尾提取物的体外和体内抗寄生活性。为了确定最小抑制浓度(MIC)和50%抑制浓度(IC50),我们测试了5种浓度的提取物对阴道毛滴虫(ATCC 30236)的抑制作用。为了深入了解其抗寄生虫活性的机制和可能的不良反应,我们对提取物进行了VERO和人类阴道上皮细胞(HVMII)的细胞毒性实验,基因表达分析,并通过分子对接分析了其成分与阴道T.蛋白的相互作用。在体外生物实验中,IFT和IFC的MIC分别为600 μg/mL, IC50分别为150 μg/mL和300 μg/mL,分别抑制80%和97%的阴道T.滋养体。重要的是,600 μg/mL的IFC和IFT对VERO和HMVII细胞没有细胞毒性作用,表明它们是安全的。与阴性对照、DMSO和甲硝唑相比,IFC和IFT诱导的基因表达存在显著差异,提示它们可能调控阴道t细胞基因。此外,计算机分析显示,这两种提取物的成分与对阴道绦虫存活很重要的蛋白质相互作用,具有显著的自由结合能。总之,本研究为桔梗提取物对阴道滴虫的抗寄生活性提供了证据,并为进一步评价桔梗提取物治疗滴虫病的前景提供了依据。
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引用次数: 0
Survival mechanisms of microorganisms occurring in acid mine drainage: sulfur, iron, carbon, and nitrogen metabolic pathways 酸性矿井废水中微生物的生存机制:硫、铁、碳和氮的代谢途径
Pub Date : 2023-01-01 DOI: 10.4322/biori.00092023
Estácio Jussie Odisi, Diego Serrasol do Amaral, Marcus Adonai Castro da Silva, André Oliveira de Souza Lima, Leonardo Rubi Rörig
Despite its economic importance, mining usually generates intense environmental degradation. The excavation process carried out in mining activities exposes minerals to atmospheric oxygen and water, conditioning a series of biogeochemical processes that can lead to the production of acid mine drainage (AMD). AMD has low pH and high concentrations of sulphates and heavy metals, creating environments with extreme conditions for life. These environments are usually inhabited by microorganisms able to acquire energy from iron and sulfur, using limited sources of carbon and nitrogen. In addition, these microorganisms need mechanisms to resist to extremely low pH and high concentration of heavy metals that can be toxic and lethal to the cellular structure. Acid stress tolerance involves active mechanisms to maintain intracellular pH at adequate levels despite low external values, and adaptive processes against acid stress allowing microorganisms to operate metabolically at low pH. The set of these adaptations give microorganisms the possibility of surviving in AMD environments and, consequently, represent potential for bioremediation and other biotechnological applications like biomining and search for biomolecules for industrial processes. The purpose of this review was to compile the metabolic and adaptive mechanisms involved in the survival of microorganisms occurring in AMD environments, focusing on how they utilize sulfur, iron, carbon and nitrogen metabolic pathways.
尽管采矿具有重要的经济意义,但通常会造成严重的环境退化。在采矿活动中进行的挖掘过程使矿物暴露于大气中的氧气和水中,调节了一系列生物地球化学过程,这些过程可能导致酸性矿井水(AMD)的产生。AMD的pH值低,硫酸盐和重金属浓度高,为生命创造了极端的环境条件。这些环境中通常居住着能够从铁和硫中获取能量的微生物,利用有限的碳和氮来源。此外,这些微生物需要抵抗极低pH值和高浓度重金属的机制,这些重金属对细胞结构具有毒性和致命性。酸胁迫耐受性包括在外部值较低的情况下将细胞内pH值维持在适当水平的主动机制,以及抗酸胁迫的适应性过程,允许微生物在低pH值下进行代谢。这些适应性使微生物有可能在AMD环境中生存,因此,代表了生物修复和其他生物技术应用的潜力,如生物矿化和寻找工业过程中的生物分子。本文综述了AMD环境中微生物生存的代谢和适应机制,重点介绍了它们如何利用硫、铁、碳和氮的代谢途径。
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引用次数: 0
Real-Time PCR Assay for detection and quantification of Leishmania: standardization, positive control, validation, and intra-laboratory assay 利什曼原虫检测和定量的实时PCR分析:标准化、阳性对照、验证和实验室内分析
Pub Date : 2023-01-01 DOI: 10.4322/biori.00062022
Manuel Hospinal-Santiani, Carlos Ricardo Soccol, Susan Grace Karp, Eduardo Scopel Ferreira da Costa, Luiz Alberto Junior Letti, Germana Davila dos Santos, Vanete Thomaz Soccol
His study aimed to develop a method to investigate PCR sensitivity for diagnosis and ensure reproducibility for parasite load quantification in tissues based on qPCR. In the first step, genes were selected to quantify the parasite load; then, a standard was developed to quantify the concentration of different Leishmania species. These tools were evaluated in intra-laboratory assays. The sensitivity was determined as 0.01 parasites/μL, and the method was reproducible with 100% concordance among human participants in the intra-laboratory validation study. Furthermore, the results demonstrated the specificity of the method in detecting the genus Leishmania without showing cross-reaction with Trypanosoma cruzi or human DNA.
他的研究旨在开发一种方法来研究PCR诊断的敏感性,并确保基于qPCR的组织中寄生虫负荷定量的重复性。第一步,选择基因来量化寄生虫负荷;然后,制定了一个标准来量化不同利什曼原虫种类的浓度。这些工具在实验室内进行了评估。灵敏度为0.01寄生虫/μL,该方法重复性好,实验室内验证研究的一致性为100%。结果表明,该方法在检测利什曼原虫属时具有特异性,且与克氏锥虫或人DNA无交叉反应。
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引用次数: 0
Occurrence of fumonisins and strategies for biocontrol in beer production: a systematic review 啤酒生产中伏马菌素的发生及生物防治策略综述
Pub Date : 2023-01-01 DOI: 10.4322/biori.00032023
Adriane Buczynski, Juliana Vitória Messias Bittencourt, Mariana Machado Fidelis do Nascimento, Elisabete Hiromi Hashimoto
Beer is one of the most consumed alcoholic beverages in the world and is basically made up of water, barley malt, hops and yeast other components that also be added in production such as adjuncts. Corn is among the most used adjuncts and considered a viable and affordable grain to partially replace barley. However, there is a constant concern about the occurrence of mycotoxins and subsequent contamination in beer processing. Corn can be contaminated by a type of mycotoxin called fumonisins, produced by the fungus Fusarium verticillioides. The relationship between the detection of fumonisins and the use of corn-based adjuncts in beer processing has been described for over 25 years. However, the occurrence and effect on beer processing are less reported in the literature when compared to scientific publications on the relationship between the fungus F. graminearum and its mycotoxins. Given this scenario, the objective of this revision was to develop a Methodi Ordinatio systematic literature review on three subjects: fumonisins occurrence in beer, the contamination effect by F. verticillioides and fumonisins on beer processing and viable biocontrol methods to improve this problem. In total, 22 articles on the occurrence of fumonisins in beer were selected, which showed that countries on the African continent are the ones with the highest levels of mycotoxins contamination. In addition, 17 papers were selected to discuss the effect of contamination by F. verticillioides and fumonisins on beer processing. Together, these works verified the presence of fumonisins in the raw material and in the final product after processing, demonstrating that more measures are needed to restrict the development of fumonisin-producing fungi. Finally, 21 papers were selected on viable biocontrol methods to improve beer processing. Specifically, it has been described that conventional food processing methods are not able to eliminate fumonisins, and biological control methods are more effective as they reduce or eliminate them. Such methods involve physicochemical processes such as adsorption and enzymatic biodegradation.
啤酒是世界上消费最多的酒精饮料之一,主要由水、大麦芽、啤酒花和酵母组成,其他成分也会在生产过程中添加,比如辅料。玉米是最常用的辅料之一,被认为是一种可行的、负担得起的谷物,可以部分取代大麦。然而,人们一直担心啤酒加工过程中霉菌毒素的发生和随后的污染。玉米可能被一种叫做伏马菌素的霉菌毒素污染,这种霉菌毒素是由黄萎病镰刀菌产生的。伏马菌素的检测与啤酒加工中使用玉米基添加剂之间的关系已经描述了超过25年。然而,与有关真菌F. graminearum及其真菌毒素之间关系的科学出版物相比,文献中对啤酒加工的发生和影响的报道较少。鉴于此,本次修订的目的是对啤酒中伏马菌素的存在、黄曲霉杆菌和伏马菌素对啤酒加工的污染影响以及可行的生物防治方法三个方面进行方法排序系统的文献综述。总共有22篇关于啤酒中伏马毒素发生的文章被选中,这表明非洲大陆的国家是霉菌毒素污染水平最高的国家。此外,选取了17篇论文,探讨了黄萎病菌和伏马菌素对啤酒加工的影响。总之,这些工作证实了伏马菌素在原料和加工后的最终产品中存在,表明需要采取更多措施来限制产生伏马菌素的真菌的发展。最后,选出了21篇有效的生物防治方法来改善啤酒加工。具体来说,已经描述了传统的食品加工方法不能消除伏马菌素,生物控制方法更有效,因为它们可以减少或消除它们。这些方法涉及物理化学过程,如吸附和酶生物降解。
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引用次数: 0
Biosynthesis of fatty acids and biosurfactants by the yeast Yarrowia lipolytica with emphasis on metabolic networks and bioinformatics 脂化耶氏酵母的脂肪酸和生物表面活性剂的生物合成,重点是代谢网络和生物信息学
Pub Date : 2022-01-01 DOI: 10.4322/biori.202201
C. Bauer, C. Schmitz, M. Landell, M. Maraschin
: Yarrowia lipolytica is a haploid, aerobic, and non-pathogenic yeast with biotechnological importance due to its lipolytic and proteolytic properties. It is capable of producing lipases, biosurfactants, long chain fatty acids, and also metabolizing different types of carbon sources such as hydrocarbons. Besides, Y. lipolytica also receives attention due to its ability to produce organic acids. In this review, we explore its metabolic abilities to produce fatty acids for the fine chemical industry (fatty acid-derived bio-based compounds) and also biosurfactants, important for the food and pharmaceutical industries and bioremediation. With the accelerated advance of ‘omics’ technologies, e.g., genomics, proteomics, metabolomics, genetic and metabolic engineering, combined with bioinformatics, substantial data are increasingly available, allowing to optimize biotechnological applications of this microorganism. Thus, this review covers the
脂解耶氏菌是一种单倍体、需氧、非致病性酵母菌,因其脂解和蛋白解特性而具有重要的生物技术意义。它能够产生脂肪酶、生物表面活性剂、长链脂肪酸,也能代谢不同类型的碳源,如碳氢化合物。此外,聚脂乳杆菌也因其产生有机酸的能力而受到关注。在这篇综述中,我们探讨了它的代谢能力,为精细化工生产脂肪酸(脂肪酸衍生的生物基化合物)和生物表面活性剂,在食品和制药工业和生物修复中具有重要意义。随着“组学”技术的加速发展,如基因组学、蛋白质组学、代谢组学、遗传和代谢工程,结合生物信息学,大量数据越来越多,可以优化这种微生物的生物技术应用。因此,本综述涵盖了
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引用次数: 0
Effect of light/dark cycles on the growth of Haematococcus pluvialis in mixotrophic cultivation with alternative culture media 光/暗循环对不同培养基混合营养培养雨红球菌生长的影响
Pub Date : 2022-01-01 DOI: 10.4322/biori.20226202
L. H. Sipaúba-Tavares, M. G. Tedesque, D. C. Fenerick, R. N. Millan, B. Scardoeli-Truzzi
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引用次数: 0
A systematic review of drying methods and their impact on technological characteristics of sourdough type III 干燥方法及其对III型酵母工艺特性的影响
Pub Date : 2022-01-01 DOI: 10.4322/biori.202203
I. D. Marco, Cássia Maria da Silva, J. O. Moraes, L. A. A. Menezes, Marília Miotto, J. Laurindo, J. Lindner
2452-0721/2452-0721 © 2022 sociedade Brasileira de Biotecnologia. this is an Open access article distributed under the terms of the creative commons attribution-Noncommercial No Derivative license, which permits unrestricted noncommercial use, distribution, and reproduction in any medium provided the original work is properly cited and the work is not changed in any A systematic review of drying methods and their impact on technological characteristics of sourdough type III
2452-0721/2452-0721©2022巴西生物技术协会。这是一篇开放获取的文章,在知识共享署名-非商业性禁止衍生许可的条款下发布,该许可允许不受限制的非商业使用、分发和在任何媒介上复制,前提是正确引用原始作品,并且在任何对干燥方法及其对酵母III型技术特性的影响的系统回顾中不改变作品
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引用次数: 2
Peptides and current methods on bovine tuberculosis diagnosis 牛结核诊断的多肽及新方法
Pub Date : 2022-01-01 DOI: 10.4322/biori.202202
Violetta Dias Pacce, N. R. Oliveira, Jean Michel Dela Vedova-Costa, O. Dellagostin, V. Thomaz-Soccol
2452-0721/2452-0721 © 2022 Sociedade Brasileira de Biotecnologia. This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial No Derivative License, which permits unrestricted noncommercial use, distribution, and reproduction in any medium provided the original work is properly cited and the work is not changed in any Peptides and current methods on bovine tuberculosis diagnosis
2452-0721/2452-0721©2022巴西生物技术协会。这是一篇在知识共享署名-非商业禁止衍生许可条款下发布的开放获取文章,该许可允许在任何媒介上不受限制的非商业使用、分发和复制,前提是原始作品被正确引用,并且作品没有在任何多能和当前牛结核病诊断方法中被改变
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引用次数: 0
In vitro determination of the sun protection factor (SPF) and photochemoprotection potential of aqueous extract of banana peels (Musa sp.) against UV-B radiation 香蕉皮水提物抗UV-B辐射的防晒系数(SPF)和光化学保护电位的体外测定
Pub Date : 2022-01-01 DOI: 10.4322/biori.20226203
Susane Lopes, Giulia Galani, L. A. Peruch, M. Maraschin
: Banana ( Musa sp.) fruits have been investigated by the scientific community for their healing properties due to their composition in bioactive compounds. In this study, the aqueous extract (AE) of banana peels ( Musa sp., cv . Prata Anã) was chemically characterized and investigated regarding its antioxidant and photochemoprotective potential against UV-B radiation in BALB/3T3 clone A31 mouse fibroblasts. The results showed the AE as a source of phenolic compounds, mainly gallic acid. Antioxidant activity of AE was demonstrated by its ability to scavenge DPPH free radicals and to reduce ferric–tripyridyltriazine complex. A sun protection factor (SPF) of up to 36.4 was determined through the Mansur equation. The AE revealed low cytotoxicity (96 ± 12% cell viability - 100 µg/mL) to mouse fibroblasts and the determination of the photochemoprotective effect revealed preservation of collagen biosynthesis in cells exposed to UV-B (38.6 ± 7%), also contributing to the maintenance of cellular and nuclear morphologies. Thus, the AE of banana peels seems to be an interesting candidate for pharmaceutical/cosmetic formulations to combat skin’s photoaging caused by UV-B radiation.
香蕉(Musa sp.)水果由于其生物活性化合物的组成而具有治疗特性,科学界对此进行了研究。在本研究中,香蕉皮水提物(AE) (Musa sp., cv。研究了Prata Anã)在BALB/3T3克隆A31小鼠成纤维细胞中的抗氧化和光化学保护作用。结果表明,AE中酚类化合物的主要来源是没食子酸。AE的抗氧化活性主要表现在其清除DPPH自由基和还原铁-三吡啶三嗪络合物的能力。通过曼苏尔方程确定了高达36.4的防晒系数(SPF)。AE对小鼠成纤维细胞具有较低的细胞毒性(96±12%的细胞活力- 100µg/mL),光化学保护作用的测定表明,暴露于UV-B下的细胞(38.6±7%)保留了胶原生物合成,也有助于维持细胞和核形态。因此,香蕉皮的AE似乎是一个有趣的候选药物/化妆品配方,以对抗由UV-B辐射引起的皮肤光老化。
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引用次数: 0
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Biotechnology Research and Innovation
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