scholarly journals Potential Application of Banana Peel Flour in Biofilm

2021 ◽  
Vol 4 (3) ◽  
pp. 85-89
Author(s):  
Paloma Amancio Oliveira Kno ◽  
Ingrid Lessa Leal ◽  
Tatiana Barreto Rocha Nery
Keyword(s):  
Environmental Impacts ◽  
Potential Application ◽  
Added Value ◽  
Banana Peel ◽  
Biofilm Production ◽  
Potential Matrix ◽  
Rate Of Consumption

Agribusiness is a major generator of waste, which generates significant environmental impacts. However, these residues can have several applications, thus having added value. Among all fruits, the banana has the highest rate of consumption in Brazil, consequently producing large amounts of peel. This work aims to get and characterize the banana peel flour for further application in biofilm production. We performed the physicalchemical characterization of the banana peel and the flour by crushing and drying in an oven (60 °C/24 h). Subsequently, we wash and delignification the pulp for its extraction. The results obtained 43% of total fiber in the flour and, at the end of the delignification process, 1.45 g of cellulose. Therefore, the banana peel presents itself as a potential matrix for application in the production of biofilm.

scholarly journals Added value of diffusion-weighted MRI in assessment of pleural lesions

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Youssriah Yahia Sabri ◽  
Ikram Hamed Mahmoud ◽  
Lamis Tarek El-Gendy ◽  
Mohamed Raafat Abd El-Mageed ◽  
Sally Fouad Tadros
Keyword(s):  
Positive Predictive Value ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Diagnostic Value ◽  
Added Value ◽  
Adc Value ◽  
Pleural Diseases ◽  
Conventional Mri ◽  
Malignant Lesions

Abstract Background There are many causes of pleural disease including variable benign and malignant etiologies. DWI is a non-enhanced functional MRI technique that allows qualitative and quantitative characterization of tissues based on their water molecules diffusivity. The aim of this study was to evaluate the diagnostic value of DWI-MRI in detection and characterization of pleural diseases and its capability in differentiating benign from malignant pleural lesions. Results Conventional MRI was able to discriminate benign from malignant lesions by using morphological features (contour and thickness) with sensitivity 89.29%, specificity 76%, positive predictive value 89%, negative predictive value 76.92%, and accuracy 85.37%. ADC value as a quantitative parameter of DWI found that ADC values of malignant pleural diseases were significantly lower than that of benign lesions (P < 0.001). Hence, we discovered that using ADC mean value of 1.68 × 10-3 mm2/s as a cutoff value can differentiate malignant from benign pleural diseases with sensitivity 89.3%, specificity 100%, positive predictive value 100%, negative predictive value 81.2%, and accuracy 92.68% (P < 0.001). Conclusion Although DWI-MRI is unable to differentiate between malignant and benign pleural effusion, its combined morphological and functional information provide valid non-invasive method to accurately characterize pleural soft tissue diseases differentiating benign from malignant lesions with higher specificity and accuracy than conventional MRI.

Synthesis and characterization of metal oxides complexes with potential application in HDS reactions

2021 ◽  
Vol 291 ◽  
pp. 129562
Author(s):  
S.L. Amaya ◽  
G. Alonso-Núñez ◽  
J.N. Díaz De León ◽  
S. Fuentes ◽  
Adriana Echavarría
Keyword(s):  
Metal Oxides ◽  
Potential Application ◽  
Synthesis And Characterization

scholarly journals Synthesis and characterization of analcime (ANA) zeolite using a kaolinitic rock

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Daniela Novembre ◽  
Domingo Gimeno
Keyword(s):  
Ambient Pressure ◽  
Added Value ◽  
Emission Spectrometry ◽  
Quantitative Phase Analysis ◽  
Crystallization Time ◽  
Experimental Protocol ◽  
Economic Point ◽  
Cell Parameters ◽  
Synthesis Protocol

AbstractAnalcime is nowadays an important component in dental porcelain systems, in heterogeneous catalysis, in the nanoelectronic field, in selective adsorption and in stomatology (dental filling and prosthesis). Analcime synthesis from an impure, silica-rich kaolinite rock coming from Romana (Sassari, Italy) is here presented. A synthesis protocol is proposed that aims to make an improvement of synthesis conditions compared to the past. The hydrothermal treatment is in fact here achieved without aging times and without the use of sodium silicate or other additional silica source reported in the literature. Lower calcination temperature, synthesis temperature and crystallization time are verified in this work. The kaolin is subjected to calcination at the temperature of 650 °C and then mixed with NaOH. The experiment is performed at ambient pressure and 170 ± 0.1 °C. The degree of purity of analcime is calculated in 97.57% at 10 h. Analcime is characterized by X-ray diffraction, infrared spectroscopy, scanning electron microscopy, inductively coupled plasma optical emission spectrometry and thermal analysis. Density is also calculated. Cell parameters and the amount of amorphous phase in the synthesis powders is estimated with quantitative phase analysis using the combined Rietveld and reference intensity ratio methods. The experimental conditions make the synthesis protocol particularly attractive from an economic point of view. Also this work does not use a commercial kaolin but silica-rich impure kaolinitic rock from a disused quarry. This further reduces the costs of the experimental protocol. It also gives the protocol an added value, as the synthesis of a useful mineral is obtained through the valorization of an otherwise unused georesource. Both chemical and physical characterization of analcime is satisfactory making the experimental protocol very promising for an industrial transfer.

The first sequenced Sphaerotilus natans bacteriophage– characterization and potential to control its filamentous bacterium host

2021 ◽  
Vol 97 (4) ◽  
Author(s):  
Rute Ferreira ◽  
Rui Amado ◽  
Jorge Padrão ◽  
Vânia Ferreira ◽  
Nicolina M Dias ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Bacterial Communities ◽  
Potential Application ◽  
Deleterious Effect ◽  
Wastewater Treatment Plants ◽  
Lytic Phage ◽  
Filamentous Bacterium ◽  
Sphaerotilus Natans ◽  
Isolation And Characterization

ABSTRACT Bacteriophages (phages) are ubiquitous entities present in every conceivable habitat as a result of their bacterial parasitism. Their prevalence and impact in the ecology of bacterial communities and their ability to control pathogens make their characterization essential, particularly of new phages, improving knowledge and potential application. The isolation and characterization of a new lytic phage against Sphaerotilus natans strain DSM 6575, named vB_SnaP-R1 (SnaR1), is here described. Besides being the first sequenced genome of a Sphaerotilus natans infecting phage, 99% of its 41507 bp genome lacks homology with any other sequenced phage, revealing its uniqueness and previous lack of knowledge. Moreover, SnaR1 is the first Podoviridae phage described infecting this bacterium. Sphaerotilus natans is an important filamentous bacterium due to its deleterious effect on wastewater treatment plants (WWTP) and thus, phages may play a role as novel biotechnological tools against filamentous overgrowth in WWTP. The lytic spectrum of SnaR1 was restricted to its host strain, infecting only one out of three S. natans strains and infection assays revealed its ability to reduce bacterial loads. Results suggest SnaR1 as the prototype of a new phage genus and demonstrates its potential as a non-chemical alternative to reduce S. natans DSM 6575 cells.

Partial characterization of sulfohydrolase from Gracilaria dura and evaluation of its potential application in improvement of the agar quality

2011 ◽  
Vol 85 (1) ◽  
pp. 157-163 ◽  
Author(s):  
Mahendra K. Shukla ◽  
Manoj Kumar ◽  
Kamlesh Prasad ◽  
C.R.K. Reddy ◽  
Bhavanath Jha
Keyword(s):  
Potential Application ◽  
Partial Characterization ◽  
Agar Quality ◽  
Gracilaria Dura

scholarly journals Characterization of Bio-Polymer Composite Thin Film Based on Banana Peel and Egg Shell

2018 ◽  
Vol 1 (Spl-1) ◽  
pp. 546 ◽  
Author(s):  
Nik Alnur Auli NIK YUSUF ◽  
Mohammad Khairul Azhar ABDUL RAZAB ◽  
Nor Hakimin ABDULLAH ◽  
An‘Amt MOHAMED NOOR ◽  
Mahani YUSOFF ◽  
...  
Keyword(s):  
Thin Film ◽  
Polymer Composite ◽  
Composite Thin Film ◽  
Banana Peel ◽  
Egg Shell

scholarly journals Metabolomic Profiling in Lung Cancer: A Systematic Review

Metabolites ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 630
Author(s):  
Daniela Madama ◽  
Rosana Martins ◽  
Ana S. Pires ◽  
Maria F. Botelho ◽  
Marco G. Alves ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Systematic Review ◽  
Added Value ◽  
Metabolomic Profiling ◽  
Significant Burden ◽  
Advanced Stages ◽  
Altered Metabolism ◽  
Metabolic Biomarkers ◽  
Analytical Platforms

Lung cancer continues to be a significant burden worldwide and remains the leading cause of cancer-associated mortality. Two considerable challenges posed by this disease are the diagnosis of 61% of patients in advanced stages and the reduced five-year survival rate of around 4%. Noninvasively collected samples are gaining significant interest as new areas of knowledge are being sought and opened up. Metabolomics is one of these growing areas. In recent years, the use of metabolomics as a resource for the study of lung cancer has been growing. We conducted a systematic review of the literature from the past 10 years in order to identify some metabolites associated with lung cancer. More than 150 metabolites have been associated with lung cancer-altered metabolism. These were detected in different biological samples by different metabolomic analytical platforms. Some of the published results have been consistent, showing the presence/alteration of specific metabolites. However, there is a clear variability due to lack of a full clinical characterization of patients or standardized patients selection. In addition, few published studies have focused on the added value of the metabolomic profile as a means of predicting treatment response for lung cancer. This review reinforces the need for consistent and systematized studies, which will help make it possible to identify metabolic biomarkers and metabolic pathways responsible for the mechanisms that promote tumor progression, relapse and eventually resistance to therapy.

scholarly journals Characterization of the bauxite mining of the Poços de Caldas alkaline massif and its socio-environmental impacts

2012 ◽  
Vol 65 (1) ◽  
pp. 127-133 ◽  
Author(s):  
Dalmo Arantes de Barros ◽  
João Carlos Costa Guimarães ◽  
José Aldo Alves Pereira ◽  
Luis Antônio Coimbra Borges ◽  
Rossi Allan Silva ◽  
...  
Keyword(s):  
Environmental Impacts ◽  
Mineral Resources ◽  
Mining Sector ◽  
Bauxite Mining ◽  
Intensive Use ◽  
Poços De Caldas ◽  
Alkaline Massif ◽  
Social And Environmental Impacts ◽  
Satisfactory Manner

The intensive use of mineral resources brings along significant changes to the environment. The mining sector is essential for world economics, as long as it is operated on a basis that is technically coherent, socially fair and environmentally correct. This study aimed to characterize the bauxite mining of the Poços de Caldas plateau, MG, investigating its respective socio-environmental impacts. Through the overview presented, one can conclude that in most situations, the bauxite miningat the Poços de Caldas plateau mitigates its negative social and environmental impacts in a satisfactory manner in addition to generating positive social impacts; and the restoration methods of the mining-disturbed ecosystems have been continually improved and should be replicated by small-and-medium-sized companies.

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