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From nut to Dulce de leche: Development of a vegan alternative – Physicochemical characterization, microbiological evaluation and sensory analysis

Food and Humanity

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Food and Humanity 2023年 1卷 581-588页

作者： de Jesus, Eliane Pompeu Techi Diniz, Luan Gabriel Alves, Vanessa da Silva, Yara Prock Schmitz, Ana Camila Quast, Leda Battestin dos Passos Francisco, Cátia Tavares Tormen, Luciano Bertan, Larissa Canhadas Food Engineering and Food Science and Technology Post Graduation Program Federal University of Fronteira Sul Laranjeiras do Sul Parana Brazil

There is a growing trend in the consumption of plant-based raw materials and the use of nuts is a promising alternative in the development of non-dairy foods. This study aimed to produce vegan Dulce de leche with water-soluble baru and cashew nuts extracts (WSBE and WSCE). The WSBE and WSCE were produced using a nut: water ratio of 1:6 (w/v) with the subsequent addition of sucrose and heat treatment to produce Dulce de leche made with baru and cashew nuts (DLBN and DLCN). The nutritional composition of WSBE, WSCE, DLBN, and DLCN showed significant protein and lipids levels with high profile of monounsaturated fatty acids – MUFA and polyunsaturated – PUFA, and lower saturated fatty acids – SFA, leading to lower atherogenicity and thrombogenicity indexes. The Dulce de leche showed a balanced energy value (kcal) and lower hydroxymethylfurfural (HMF) levels. The sensory acceptance test showed a higher scores for WSBE and DLBN for the attributes evaluated, corresponding to “slightly liked” and “moderately liked” when compared to the WSCE and DLCN, with no differences for the purchase intention, which was classified as “probably would buy, probably would not buy”. Thus, the use of water-soluble nut-based extracts can be an alternative for the development of vegan Dulce de leche, contributing positively to consumer health, animal welfare, and the environment. © 2023 Elsevier B.V.

关键词： Baru nuts Cashew nuts Dulce de leche Non-dairy foods Plant-based

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Effect of Concentration and Residence Time of Joncryl■ADR4368 on Melt Processability of Poly(3-hydroxybutyrate)

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Journal of Renewable materials 2024年第12期12卷 2079-2094页

作者： Jéssica da Silva Chagas JoséElson Soares Filho Natália Fernanda Inocêncio Silva Marcelo Massayoshi Ueki Eliton Souto de Medeiros Renate Maria Ramos Wellen Mauricio Pinheiro de Oliveira Gelsoneide da Silva Gois Yêda Medeiros Bastos de Almeida Amélia S.F.Santos Post-Graduation Program in Materials Engineering(PPCEM) Federal University of Paraíba(UFPB)João PessoaPB 58051-900Brazil Laboratory of Materials and Biosystems(LAMAB) Federal University of Paraíba(UFPB)João PessoaPB 58051-900Brazil Department of Materials Engineering Federal University of Sergipe(UFS)Jardim Rosa ElzeSão CristóvãoSE 49100-000Brazil Institute of Science and Technology Federal University of São Paulo(UNIFESP)São Josédos CamposSP 12231-280Brazil Department of Chemical Engineering Federal University of Pernambuco(UFPE)Cidade UniversitáriaRecifePE 50670-901Brazil

Poly(3-hydroxybutyrate)(PHB)is a biothechnological and biodegradable thermoplastic polymer from the polyhydroxyalkanoates(PHAs)family,whose chain regularity,high molecular weight,and physical and mechanical properties comparable to polypropylene(PP)are characteristics that have made PHB a prominent commercial ***,its susceptibility to thermal degradation and hydrolysis has limited many *** address the challenges associated with processing,a random copolymer of 95.86 mol%3-hydroxybutyrate and 4.14 mol%3-hydroxyvalerate(referred as PHB)was compounded without(neat PHB)and with 0.25,0.5,1,and 1.5 wt%of chain extender(Joncryl■ADR 4368),consisting of multifunctional epoxy groups,and melt mixed in an internal mixer at 170℃,50 rpm,and residence times of 5,10,and 15 *** effect of chain extender concentration and residence time on the effectiveness of Joncryl■ADR 4368 to recover the pristine PHB properties were investigated through torque rheometry,melt flow index(MFI),differential scanning calorimetry(DSC),tensile testing,and thermogravimetric *** results indicated that an increase in residence time strongly influenced the prevalence of thermomechanical degradation reactions over chain extension reactions of PHB during processing in the molten *** residence times favored chain extension,while longer times favored chain *** trend led to no enhancement of PHB mechanical properties processed for 10 and 15 min,regardless of additive content *** flow index,thermogravimetric analysis and tensile strength exhibited an asymptotic behavior with the increase in additive concentration,exhibiting a noteworthy improvement in tensile strength and temperature at the highest rate of thermal degradation(TMAX),and a decrease in melt flow index of neat PHB with only 0.25 wt%of additive mixed for 5 *** results found in this work allow additional data for processing PHB by manipulating the ratios of multifunctional chain

关键词： PHB chain extender degradation epoxy groups viscosity

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Analyses of Photovoltaic Systems Performance with Fuzzy Inference Systems and Bayesian Networks

Analyses of Photovoltaic Systems Performance with Fuzzy Infe...

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Power Electronics and Control (SEPOC), Seminar on

作者： Nicole Polityto Cremasco Myriam Regattieri De Biase da Silva Delgado Jair Urbanetz Junior Luiz Ledo Mota Melo Jorge Assade Leludak Keiko Verônica Ono Fonseca Program of Post-Graduation of Electrical Engineering and Industrial Informatics(CPGEI) of Federal University of Technology of Paraná(UTFPR) Program of Post-Graduation of Electrical Engineering and Industrial Informatics(CPGEI) of the Federal University of Technology of Paraná(UTFPR) Program of Post-Graduation in Energy Systems of Federal University of Technology of Paraná(UTFPR Department of Electrical Engineering (DAELT)) Federal University of Technology of Paraná(UTFPR) Curitiba Brazil

Renewable energy sources have been increasingly targeted as an alternative for reducing fossil fuel emissions. This scenario requires a better understanding of energy systems' performance and limitations, notably using photovoltaic setups under diverse meteorological conditions and determining device measurement uncertainties. Accordingly, this study conducts a performance evaluation of a photovoltaic system of copper, indium, and gallium (di)selenide technology. It compares the results provided by a reference normalized equation with two interpretable artificial intelligence techniques, Fuzzy Inference System and Bayesian Networks, when temperature is also considered. In the experiments, the study found significant percentage differences between the normalization procedure and the fuzzy system on days with lower irradiation values. On the other hand, the results provided by Bayesian networks presented lower difference percentages in relation to the normalization equation values.

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Cellulase production by Bacillus smithii QT03 using agro-industrial waste as carbon source

Waste Management Bulletin

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Waste Management Bulletin 2025年第1期3卷 48-57页

作者： Villanueva Gaete, Analyse Paula Martinazzo, Ana de Souza Teodoro, Carlos Eduardo Post-graduation in Environmental Technology Fluminense Federal University RJ Volta Redonda Brazil Agribusiness Engineering Fluminense Federal University RJ Volta Redonda Brazil Carlos Eduardo de Souza Teodoro Fluminense Federal University Postgraduate Program in Environmental Technology Avenida dos Trabalhadores 420 - Vila Santa Cecília RJ Volta Redonda 27255-125 Brazil

Currently, within the concepts of Bioeconomy and Circular Economy, technologies for transforming agro-indutrial waste into high-value products are rapidly advancing and gaining attention. Among these, microbial enzymes like cellulase have become valuable due to their extensive industrial application and potential to reduce cultivation cost, especially by using agro-industrial residues as substrates. This study aimed to optimize the culture conditions of Bacillus smithii QT03 for cellulase production and to partially characterize the enzyme. Several parameters were evaluated, including different agro-industrial wastes as a carbon source, incubation temperature, pH, incubation time, agitation, inoculum size, nitrogen source, and cellulase thermal and pH stability. B. smithii QT03 produces cellulase in the presence of malt bagasse as a carbon source (2 %), meat extract as a nitrogen source (1.5 %), at an incubation time of 48 h at 35 °C, stirring at 200 rpm, and 2 % inoculum. The enzyme reached maximum activity after 30 min at pH 7 and maintained 70 % of its activity for 24 h at pH 6. It also reached maximum activity at 70 °C and maintained 100 % activity after incubation at 55 °C for 3 h, and 58 % at 60 °C for 24 h. These results suggest that cellulase production by B. smithii QT03 using malt bagasse presents a promising, sustainable alternative for industrial applications. © 2024 The Authors

关键词： Culture media optimization Endo-β-1,4 glucanase Enzyme characterization Lignocellulosic biomass Malt bagasse

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Propranolol hydrochloride degradation using La@TiO_(2) functionalized with CMCD

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Journal of Rare Earths 2022年第4期40卷 579-585,I0003页

作者： Gustavo Lopes Colpani Vitor Follmann Santos Rubieli Carla Frezza Zeferino Micheli Zanetti Josiane Maria Muneron de Mello Luciano Luiz Silva Natan Padoin Regina de Fatima Peralta Muniz Moreira Márcio Antônio Fiori Cíntia Soaresc Post-Graduate Program in Technology and Innovation Management Community University of ChapecóRegionChapecó89809-900Brazil Department of Chemical Engineering Community University of ChapecóRegionChapecó89809-900Brazil Laboratory of Materials and Scientific Computing(LabMAC) Department of Chemical and Food EngineeringFederal University of Santa CatarinaFlorianópolis88040-900Brazil

Propranolol hydrochloride can be considered a persistent and bioaccumulative pharmaceutical in the *** drug and its by-products are potentially toxic and have adverse effects,since these compounds have been associated with endocrine-disrupting effects,reproductive deficiencies,embryo abnormalities and pericardial ***_(2)–La 0.05%–carboxymethyl-β-cyclodextrin(CMCD)nanoparticles were successfully prepared by a simple two-step method,which consists of sonification and *** characterization analyses reveal that lanthanum is dispersed on the semiconductor surface,probably forming Ti–O–La bonds,which can induce oxygen vacancies and surface defects that effectively restrain the recombination of photogenerated electron/holes *** efficiency of TiO_(2)–La 0.05%–CMCD samples in degradation of propranolol under UV-light irradiation is higher than that of pristine TiO_(2) within 20 min reaction,probably due to complex formation between theβ-blocker and the oligosaccharide,which allows us to propose a photocatalytic mechanism based on the formation of intermediates and competition of these compounds to the radicals and CMCD cavities.

关键词： TiO_(2) Lanthanum CMCD Propranolol Photocatalysis Functionalization

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Mitigation of Hallucinations in Language Models in Education: A New Approach of Comparative and Cross-Verification

Mitigation of Hallucinations in Language Models in Education...

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International Conference on Advanced Learning Technologies (ICALT)

作者： Wildemarkes de Almeida da Silva Luis Carlos Costa Fonseca Sofiane Labidi José Chrystian Lima Pacheco Post-Graduation Program in Computer and Systems Engineering State University of Maranhão - UEMA São Luís Brazil Bachelor of Science and Technology Program -BICT Federal University of Maranhão - UFMA São Luís Brazil Graduation in Computer and Systems Engineering State University of Maranhão - UEMA São Luís Brazil

ISBN: (数字)9798350362053

ISBN: (纸本)9798350362060

The rapid growing application of language models (LLMs) in education offers exciting prospects for personalized learning and interactive experiences. However, a critical challenge emerges - the risk of "hallucinations," where LLMs generate factually incorrect or misleading information. This paper proposes Comparative and Cross-Verification Prompting (CCVP), a novel technique specifically designed to mitigate hallucinations in educational LLMs. CCVP leverages the strengths of multiple LLMs, a Principal Language Model (PLM) and Auxiliary Language Models (ALMs), to verify the accuracy and educational relevance of the PLM's response to a prompt. Through a series of prompts and assessments, CCVP harnesses the diverse perspectives of various LLMs and incorporates human expertise for intricate cases. This method addresses the limitations of relying on a single model and fosters critical thinking skills in learners within the educational context. We detail the CCVP approach with examples specifically applicable to educational settings, such as geography. We also discuss its strengths and limitations, including computational cost, data reliance, and ethical considerations. We highlight its potential applications in educational disciplines, including fact-checking content, detecting bias, and promoting responsible LLM use. CCVP presents a promising avenue for ensuring the accuracy and trustworthiness of LLM-generated educational content. Further research and development will refine its scalability, address potential biases, and solidify its position as a vital tool for harnessing the power of LLMs while fostering responsible knowledge dissemination in education.

关键词： Geography Solid modeling Accuracy Scalability Prevention and mitigation Computational modeling Education

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Evaluation of the extraction of antioxidant compounds from buriti pulp (Mauritia flexuosa L.) by response surface methodology

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Heliyon 2025年第2期11卷 e41926页

作者： Nogueira, Gabriela Mota Cardoso, Flávia Aparecida Reitz Perdoncini, Márcia Regina Ferreira Geraldo da Silva, Marcos Vieira Rigobello, Eliane Sloboda Department of Food Engineering and Chemical Engineering Federal University of Technology–Paraná (UTFPR) Campo Mourão 87301-005 Brazil Post-Graduation Program of Food Technology (PPGTA) Federal University of Technology–Paraná (UTFPR) Campo Mourão 87301-005 Brazil Post-Graduation Program of Technological Innovations (PPGIT) Federal University of Technology–Paraná Campo Mourão 87301-005 Brazil Instituto Federal Farroupilha Campus Alegrete Alegrete 97555-000 Brazil

Buriti is a fruit rich in antioxidant compounds, and hydroalcoholic extracts were produced from its pulp to investigate the extraction conditions that result in the highest concentrations of bioactive compounds and maximum antioxidant capacity. The results showed considerable variation in the bioactive compound contents in the pulp: total phenolics (104.64–270.61 mg GAE 100 g-1), total flavonoids (17.74–60.46 mg EC 100 g⁻¹), and total carotenoids (1.30–3.92 mg kg⁻¹). The antioxidant capacity of the extracts, evaluated by DPPH, ABTS, and FRAP methods, ranged from 1.23 to 3.47 μmol ET g⁻¹, 6.34–15.86 μmol ET g⁻¹, and 4.74–11.95 μmol ET g⁻¹, respectively, highlighting the broad diversity of antioxidant activities present in the extracts. Data modeling generated statistically significant mathematical models and contour graphs, which allowed the identification of the optimal extraction conditions for the compounds. Total carotenoids were most effectively extracted with 20 % buriti pulp, intermediate ethanol concentrations, and temperatures around 70 °C. All other bioactive compounds were more efficiently extracted with 5 % buriti pulp, intermediate ethanol concentrations, and temperatures close to 30 °C. The results confirmed the efficiency of the extractions and highlighted the excellent antioxidant potential of buriti pulp. Additionally, the analysis of the optimal regions for extracting antioxidant compounds from the pulp can be applied in future studies to optimize the extraction process, providing a solid foundation for using this fruit in industrial processes, such as the production of functional ingredients. © 2025

关键词： Antioxidants Buriti Experimental design Extraction Pulp

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Antibiofilm and immunomodulatory resorbable nanofibrous filing for dental pulp regenerative procedures

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Bioactive materials 2022年第10期7卷 173-186页

作者： Mauricio Gonçalves da Costa Sousa Gabriela Conceiçao de Almeida Danilo Cesar Martins Mota Rosiane Andrade da Costa Simoni Campos Dias Samuel Nunes Limberger Frank Ko Li Ting Lin Evan FHaney Hashem Etayash Beverlie Baquir Michael J.Trimble Ya Shen Zheng Su Markus Haapasalo Daniel Pletzer Letícia Chaves de Souza Glaucia Schuindt Teixeira Renato M.Silva Robert E.W.Hancock Octavio Luiz Franco Taia Maria Berto Rezende Post-Graduation Program in Genomic Sciences and Biotechnology Catholic University of BrasíliaBrasíliaBrazil Dentistry Course Catholic University of BrasíliaBrasíliaBrazil Post-Graduation Program in Health Sciences University of BrasíliaBrazil LIMA Chemistry InstituteUniversity of Brasília-UNBBrasíliaBrazil Animal Biology Department Campus Darcy RibeiroUniversidade de BrasíliaBrazil Department of Materials Engineering Faculty of Applied ScienceUniversity of British ColumbiaVancouverCanada Department of Microbiology and Immunology University of British ColumbiaVancouverBCCanada Department of Oral Biological and Medical Sciences Faculty of DentistryUniversity of British ColumbiaVancouverCanada Department of Microbiology and Immunology University of OtagoDunedinNew Zealand Department of Endodontics School of DentistryUniversity of Texas Health Science Center at HoustonHoustonUSA Department of Prosthesis Faculty of DentistryRio de Janeiro State UniversityRio de JaneiroBrazil Post-Graduation Program in Biotechnology Catholic University Dom BoscoCampo GrandeMato Grosso do SulBrazil

Multifunctional scaffolds with host defense peptides designed for regenerative endodontics are desirable nanobiotechnological tools for ***,different scaffolds were tested for use during the pulp revascularization process,including poly(vinyl alcohol)-PVA hydrogels or resins,collagen hydrogels and poly(vinyl alcohol)PVA/Chitosan(PVA/CS)*** on time to degradation(21 days),nanofibers were chosen to be incorporated with ciprofloxacin and IDR-1002(each at 50 mg/g).Nanofibers containing ciprofloxacin and IDR-1002 had anti-biofilm activity against Enterococcus faecalis,Staphylococcus aureus and a multispecies oral biofilm,besides anti-inflammatory *** in vivo subcutaneous tissue response to tooth fragments filled with nanofibers demonstrated a pulp-like tissue formation,when compared to empty teeth ***,we designed a strong antimicrobial,immunomodulatory and regenerative candidate for pulp revascularization and regeneration procedures.

关键词： Regenerative endodontics Scaffolds Nanofibers Host defense peptides Ciprofloxacin IDR-1002

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CO2 Capture Using Silica-Immobilized Dicationic Ionic Liquids with Magnetic and Non-Magnetic Properties

SSRN

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SSRN 2024年

作者： Duarte, Evandro Bernard, Franciele Moreira Dos Santos, Leonardo Polesso, Bárbara B. Duczinski, Rafael Forneck, Vitor Geshev, Julian Einloft, Sandra Post-Graduation Program in Materials Engineering and Technology Pontifical Catholic University of Rio Grande do Sul – PUC RS Brazil School of Technology Pontifical Catholic University of Rio Grande do Sul – PUC RS Brazil Institute of Physics Federal University of Rio Grande do Sul RS Porto Alegre Brazil

The need to find alternative materials to replace aqueous amine solutions for CO2 capture in post-combustion technologies is pressing. This study assesses the CO2 sorption capacity and CO2/N2 selectivity of three dicationic ionic liquids with distinct anions immobilized in commercial mesoporous silica support (SBA-15). The samples were characterized by UART-FTIR, NMR, Raman, FESEM, TEM, TGA, Magnetometry (VSM), BET and BJH. The highest CO2 sorption capacity and CO2/N2 selectivity were obtained for sample SBA@DIL_2FeCl4 [at 1 bar and 25°C;57.31 (±0.02) mg CO2/g;12.27 (±0.72)]. The results were compared to pristine SBA-15 and revealed a similar sorption capacity, indicating that the IL has no impact on the silicás CO2 sorption capacity. On the other hand, the selectivity was improved by approximately 3.8, demonstrating the ionic liquid´s affinity for the CO2 molecule. The material underwent multiple sorption/desorption cycles and proved to be stable and a promising option for use in industrial CO2 capture processes. © 2024, The Authors. All rights reserved.

关键词： Carbon dioxide

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Chemical Profile and Biological Activity of Clove (Syzygium Aromaticum) Extracts Obtained from Different Extraction Methods

SSRN

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SSRN 2023年

作者： Battestin Quast, Leda da Silva Garais, Bruna Krüger, Roberta Letícia Food Science and Technology Post- Graduation Program Federal University of Southern Frontier Parana Laranjeiras do Sul Brazil Department of Food Engineering Midwest State University Parana Guarapuava Brazil

This study aimed to evaluate the biological activity of clove (Syzygium aromaticum) essential oil and clove extracts, obtained by hydrodistillation, maceration, and ultrasound-assisted extraction. E. coli, L. monocytogenes, S. enteritidis, and S. aureus strains were used to determine the biological activity by the formation of inhibition zones. The chemical profile of the extracts was analyzed in a liquid-phase chromatograph. The ultrasound-assisted essential oils and extracts exhibited biological activity at the concentration of 100 µL/mL, with the highest inhibition halos observed for all strains studied. The essential oil presented greater inhibition for the concentration of 50 µL/mL. The chemical profile analysis demonstrated the presence of groups of gallic acid compounds, flavones, and their isomers. The total phenolics contents ranged from 0.101 and 0.290 mg GAE/g, with the highest values for the ultrasound-assisted extracts. The results of DPPH varied from 8.15 to 65.24%, with an emphasis on ultrasound-assisted essential oil and extracts. © 2023, The Authors. All rights reserved.

关键词： Essential oils

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