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Microencapsulated phenolic-rich extract from juice processing grape pomace(Vitis *** Var):Effects on oxidative stability of raw and pre-cooked bovine burger

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Food Bioscience 2022年第6期50卷 2120-2129页

作者： Marcelo Edvan dos Santos Silva Rodrigo Lira de Oliveira Thamyres Cesar de Albuquerque Sousa Cristiani Viegas Brandão Grisi Valquíria Cardoso da Silva Ferreira Tatiana Souza Porto Marta Suely Madruga Suzana Pedroza da Silva Fábio Anderson Pereira da Silva Post-Graduate Program in Food Science and Technology Department of Food EngineeringTechnology CentreFederal University of ParaibaJoão PessoaParaiba58051-900Brazil Northeast Biotechnology Network/RENORBIO Federal Rural University of Pernambuco (UFRPE)Dom Manoel de MedeirosDois Irmãos52171-900RecifePEBrazil Federal University of Pernambuco's Agreste (UFAPE) GaranhunsAv.Bom PastorBoa Vista55296-901 GaranhunsPEBrazil Post-Graduate Program in Agrifood Technology Federal University of ParaibaCampus Universitario IIIBananeirasPBBrazil

Grape processing generates residues rich in bioactive compounds with potential application in the meat ***,these substances are unstable and needs to be treated to allow their action during the processing and storage of meat *** this sense,a phenolic-rich extract from grape pomace was microencapsulated and evaluated for its potential to inhibit the oxidative process in raw and precooked beef burgers during cold *** hamburger formulations containing lyophilized extract(LEB),microencapsulated extract(MEB)and synthetic antioxidant sodium erythorbate(SEB)were prepared,pre-cooked,and evaluated for lipid and protein *** microencapsulation,with 95.0%efficiency,provided a material with a crystalline structure,rich in phenolics and with high antioxidant potential,showing 377.4±0.01,1768.1±0.07 and 1185.0±0.20μmol TEAC.100 g^(−1) for DPPH,ABTS and FRAP,*** values of malonaldehyde were found in LEB and MEB(2.9±0.3 and 1.4±0.5 mg ***^(−1),respectively)at the end of storage,with emphasis on for the hamburgers that received the microencapsulated *** behavior was observed for the analysis of carbonyl compounds,with values of 11.1±1.1,8.7±1.4 and 6.8±1.0 nM ***^(−1) in SEB,LEB and MEB,***,the freeze-dried and microencapsulated grape extracts showed superior results when compared to the synthetic antioxidant,increasing the oxidative stability of hamburgers,and avoiding significant color changes during the cold *** results indicate the high potential of the microencapsulated material to be used as a natural antioxidant in the meat industry.

关键词： Lipid oxidation Protein oxidation Meat products Natural antioxidant Encapsulation

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Effect of treatment of sisal fiber on morphology, mechanical properties and fiber-cement bond strength

Effect of treatment of sisal fiber on morphology, mechanical...

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作者： Santos, Rogério De Jesus Lima, Paulo Roberto Lopes Post-graduate Program of Civil and Environmental Engineering Department of Technology State University of Feira de Santana Av. Transnordestina S/N-Novo Horizonte Feira de Santana Bahia44036-900 Brazil

The dimensional instability of vegetable fibers due to hygroscopicity results in a gradual loss of adherence in cement based composites which, when in service, are submitted to a natural variation of humidity. Such an effect reduces the contribution of the fiber as a reinforcement and can cause the early rupture of the material. In this work, a treatment of the sisal fibers is performed with the applying of wetting-drying cycles in order to alter their crystalline structure and improve the dimensional stability of the fiber to withstand the variation of humidity: 6, 10, 20, 30 and 34 cycles were applied in order to evaluate the effect on the properties of fiber;a tensile test, the morphological characterization (MEV) and the evaluation of the chemical structure of fiber were carried out. The effect of the treatment on fiber-matrix behavior was evaluated using the pull-out test. Embedded lengths of 16, 20, 30, 40 and 44 mm were defined through a factorial design and used in the test. It is verified that the use of 10 wetting-drying cycles causes less damage to the tensile strength and the elastic modulus of the fiber and contributes to a better adherence with the matrix, with an increase of up to 23 % compared with the untreated fiber. The statistical analysis of the interaction effect between the studied factors, using 2K factorial design with central composite design, indicates that the number of cycles can be decreased when using a longer length of the embedded fiber. © (2015) Trans Tech Publications, Switzerland.

关键词： Tensile strength

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Immobilised bacterial cells in decolourisation of azo dyes: a bibliometric analysis

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environmental technology Reviews 2024年第1期13卷 344-358页

作者： Müller, A.P. Vaz, S.B. Benitez, L.B. Post Graduate Program in Environmental Technology University of Santa Cruz do Sul Rio Grande do Sul Brazil

Bioremediation is traditionally performed using free bacterial cells;however, immobilised bacterial cells have gained attention recently as a promising technique due to the numerous benefits presented. Removing dyes by biological processes is gaining apparent interest because it is profitable and environmentally friendly. Azo dyes, released into the environment, have dangerous effects on aquatic and human life, and their persistence and discharge into the environment are becoming a global concern. Considering the importance of the aspects involved in the bioremediation of azo dyes by immobilised microbial cells and the growing number of publications on the subject, this review aimed to survey state-of-the-art and make a bibliometric mapping of these studies in the period from 2013 to 2023. The analysis of articles was selected from the science Direct database. The bibliometric mapping provided relevant data to understand the evolution of research in the area and the main bottlenecks that must be overcome for future advances to be achieved. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Azo dyes

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Drying properties of Sentang (Azadirachta excelsa) dried under different temperatures

Drying properties of Sentang (Azadirachta excelsa) dried und...

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International Conference on science and technology 2020, ICoST 2020

作者： Mohamad Ruddin, Noor Zulai'ha Rasid, Shaharlina Hermawan, Andi Forest Resource Technology Program Bachelor of Applied Science Faculty of Bioengineering and Technology Universiti Malaysia Kelantan Kelantan Malaysia Forest Resource Technology Centre for Post Graduate Studies Universiti Malaysia Kelantan Pangkalan Chepa Malaysia Forest Resource Technology Program Faculty of Bioengineering and Technology Universiti Malaysia Kelantan Kelantan Malaysia

In this study, we investigated the drying properties of Sentang (Azadirachta excelsa) dried at different temperatures. Sentang tree planted in Kelantan, Malaysia, was used in this study. Drying specimens with dimensions of 30 ×150 × 500 mm were dried under air-drying conditions, a constant temperature of 60, 80, 100, and 120 °C until the moisture content (MC) of the specimens reaches an equilibrium moisture content (EMC) at each drying condition. The drying properties of the specimens were then examined. The results confirmed that drying temperature had a significant effect on drying time. As expected, drying Sentang under air-drying conditions demanding considerable time than the other drying conditions. © Published under licence by IOP Publishing Ltd.

关键词： Drying

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Bioresource Rent Value of Mt. Malindang Range Natural Park, Philippines, for Access and Benefit Sharing Scheme

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International Journal of Forestry Research 2025年第1期2025卷

作者： Villanueva, Grace V. Calago, Jersam C. Alaman, Bobby B. Laput, Joseph Glenn Mapi-ot, Emmarie F. Parilla, Richard B. Trespalacio, Gemmalyn M. Ureta, Joan U. Ureta, J. Carl Misamis University Community Extension Program Misamis University Ozamiz City Philippines Graduate School Misamis University Ozamiz City Philippines Department of Forestry College of Agriculture and Forestry Misamis University Ozamiz City Philippines College of Business and Management Misamis University Ozamiz City Philippines Division of Natural Sciences and Mathematics University of the Philippines-Tacloban College Tacloban City Philippines Philippines Department of Science and Technology SERD PCAARRD Los Banos PHL Laguna Philippines Department of Forestry and Environmental Conservation College of Agriculture Forestry and Life Sciences Clemson University Clemson SC United States Research and Development ESFocus LLC South Carolina Charleston United States

The Mt. Malindang Range Natural Park (MMRNP) in the Philippines is a vital protected area that harbors a diverse range of flora and fauna with substantial economic significance. Despite the extensive research conducted within MMRNP, the monetary value of its rich biodiversity remains vastly underestimated. This research employs a combination of key informant interviews and focus group discussions with local and indigenous people (IP) communities living near MMRNP. Value chain analysis and resource rent calculation were utilized to determine the economic value of MMNRP’s bioresources and ensure their sustainability and equitable management. Through these participatory methods, nine bioresources of significant economic importance have been identified, prioritized, and found to be collected, utilized, and traded by communities. These include five floral species: Dendrocnide sp., Calamus sp., Cinnamomum mercadoi, Agathis philippinensis, and Gymnostoma sumatranum, and four faunal species: Limnonectes sp., Apis sp., Apis cerana, and Sus philippensis. The estimated annual value of these economically important bioresources within MMRNP is PhP 42,708,861.20. Given its potential contribution to the local economy, the establishment of enabling policies to protect bioresources is crucial to mitigate the adverse impacts of natural resource exploitation on both economic growth and the development of local communities residing near MMRNP. It is strongly recommended that joint close monitoring and supervision by relevant agencies such as the Department of Environment and Natural Resources (DENR), local government units (LGUs), and Protected Area Management Boards (PAMB) be implemented. This approach will promote transparency and consensus building, ensuring the sustainable management of these invaluable bioresources for access and benefit of present and future generations. Copyright © 2025 Grace V. Villanueva et al. International Journal of Forestry Research published by John Wiley

关键词： bioresources focus group discussion indigenous people resource rent value chain analysis

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Influence of conformational change of chain unit on the intrinsic negative thermal expansion of polymers

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Chinese Chemical Letters 2021年第4期32卷 1515-1518页

作者： Qiangsheng Sun Ke Jin Yuhui Huang Jia Guo Thanyada Rungrotmongkol Phornphimon Maitarad Changchun Wang State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science Fudan UniversityShanghai 200433.China Biocatalyst and Environmental Biotechnology Research Unit Department of BiochemistryFaculty of Science and Program in Bioinformatics and Computational BiologyGraduate SchoolChulalongkom UniversityBangkok 10330Thailand Research Center of Nano Science and Technology Shanghai UniversityShanghai 200444China

Negative thermal expansion(NTE) behavior has roused wide interest for the control of thermomechanical properties of functional *** NTE behaviors have been found in kinds of compounds,it remains challenging for polymers to achieve intrinsic NTE *** this work,we systematically studied the conformational change of dibenzocyclooctadiene(DBCOD) derivatives between chair(C) and twist-boat(TB) forms based on density-functional theo ry(DFT) calculations,and found clear evidence of the relationship between the structure of DBCOD units and the thermal contraction behavior of the related *** order to obtain the polymer with NTE property,two conditions should be met for the thermal contracting DBCOD related units as follows:(i) the TB conformation can turn into C conformation as the temperature increases,and(ii) the volume of C conformation is smaller than that of TB *** rule should offer a guidance to exploration of the new intrinsic NTE polymers in the future.

关键词： Negative thermal expansion Conformational change Polyarylamides Density-functional theory Dibenzocyclooctadiene

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The effect of thermal pre-Treatment on cassava rhizome properties for utilizing as green fuel in gasification 5

The effect of thermal pre-Treatment on cassava rhizome prope...

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2020 5th International Conference on Sustainable and Renewable Energy Engineering, ICSREE 2020

作者： Sirinwaranon, Punchaluck Atong, Duangduen Sricharoenchaikul, Viboon Interdisciplinary Program in Environmental Science Graduate School Chulalongkorn University Bangkok10330 Thailand National Science and Technology Development Agency [NSTDA Thailand Science Park Pathum Thani12120 Thailand Department of Environmental Engineering Faculty of Engineering Chulalongkorn University Bangkok10330 Thailand

Cassava rhizome (CR) was torrefied to provide superior solid fuel quality for further gasification process. The torrefaction was carried out in the absence of oxygen at 220, 240, 260, and 280°C with a fixed residence time. Solid fuel after torrefaction has a higher calorific value from that of reduced volatile matters. The optimum energy yield of torrefied CR is 88.16% at 260°C. The heating value of 20.86 MJ/kg for a torrefied product can be achieved compared to 15.37 MJ/kg for untreated CR. The subsequent gasification of torrefied CR at temperature of 800°C yielded the highest gas product of 65 wt.%. The carbon and hydrogen conversions into CO and H2 were 14.28% and 29.95%, respectively. Synthesis gas (syngas) from the conversion maintained the H2/CO ratio of around 2-2.50, which is suitable for the Fischer-Tropsch process or can be used as the feedstock for petrochemical industry. © The Authors, published by EDP sciences, 2020.

关键词： Gasification

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Sulfur-doped hard carbon hybrid anodes with dual lithium-ion/metal storage bifunctionality for high-energy-density lithium-ion batteries

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Carbon Energy 2023年第1期5卷 71-81页

作者： Sungmin Cho Jong Chan Hyun Son Ha Yeonhua Choi Honggyu Seong Jaewon Choi Hyoung-Joon Jin Young Soo Yun Program in Environmental and Polymer Engineering Inha UniversityIncheonSouth Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoulSouth Korea Departmant of Chemistry and Research Institute of Natural Science Gyeongsang National UniversityJinjuSouth Korea Department of Polymer Science and Engineering Inha UniversityIncheonSouth Korea Division of Energy Engineering Kangwon National UniversityGangwon-doSouth Korea

Bifunctional hybrid anodes(BHAs),which are both a high-performance active host material for lithium-ion storage as well as a guiding agent for homogeneous lithium metal nucleation and growth,exhibit significant potential as anodes for next-generation high-energy-density lithium-ion batteries(LIBs).In this study,sulfur-doped hard carbon nanosphere assemblies(S-HCNAs)were prepared through a hydrothermal treatment of a liquid organic precursor,followed by high-temperature thermal annealing with elemental sulfur for application as BHAs for *** a carbonate-based electrolyte containing fluoroethylene carbonate additive,the S-HCNAs showed high lithium-ion storage capacities in sloping as well as plateau voltage sections,good rate capabilities,and stable *** addition,high average Coulombic efficiencies(CEs)of~96.9%were achieved for dual lithium-ion and lithium metal storage *** the LIB full-cell tests with typical NCM811 cathodes,the S-HCNA-based BHAs containing~400 mA h g^(−1) of excess lithium led to high energy and power densities of~500Wh kg^(−1) and~1695Wkg^(−1),respectively,and a stable cycling performance with~100%CEs was achieved.

关键词： hard carbon hybrid anode lithium-ion batteries lithium metal anode lithium metal batteries sulfur-doped carbon

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Bangka Belitung Islands: Great Potencies of Massive environmental Impacts 4

Bangka Belitung Islands: Great Potencies of Massive Environm...

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4th International Conference on Energy, Environment, Epidemiology and Information System, ICENIS 2019

作者： Purnaweni, Hartuti Kismartini Prabawani, Bulan Roziqin, Ali Public Administration Department Faculty of Social and Political Sciences Universitas Diponegoro Indonesia Program of Environmental Science School of Post Graduate Undip Indonesia Business Administration Department Faculty of Social and Political Sciences Undip Indonesia Government Science Universitas Muhammadiyah Malang Indonesia

Mining is a very crucial activity of human being and is practiced everywhere in the world, including in Bangka Belitung Province which is rich in tin, making tin is the leading commodity in this area. This study aimed at analyzing the Bangka Belitung profile, tin mining activities in this area and its impact on an environmental conditions in Bangka Belitung Islands. The study applied a descriptive-qualitative method, using data from library study and previous researches dealing with the research topic, as well as data from field observation. It concluded that tin mining has been done since the Dutch era in Bangka Belitung, and is more active today. Therefore, it is concluded that massive environmental degradation will occur should the mining practices are not stopped. The study It is recommended that the government has to strengthen its policy in the form of local regulation on the tin mining activities for erecting a better public administration practices. © The Authors, published by EDP sciences, 2019.

关键词： environmental regulations

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Retraction notice to "Potential ecotoxicity of substrate-enriched zinc oxide nanoparticles to Physalaemus cuvieri tadpoles" [Sci. Total Environ. 873 (2023) 162382]

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The science of the total environment 2025年 967卷 178754页

作者： Alex Rodrigues Gomes Abraão Tiago Batista Guimarães Letícia Paiva de Matos Abner Marcelino Silva Aline Sueli de Lima Rodrigues Raíssa de Oliveira Ferreira Abu Reza Md Towfiqul Islam Md Mostafizur Rahman Chinnasamy Ragavendran Chinnaperumal Kamaraj Fabiano Guimarães Silva Guilherme Malafaia Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Agronomy Goiano Federal Institute - Campus Rio Verde GO Brazil. Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Begum Rokeya University Department of Disaster Management Rangpur 5404 Bangladesh. Laboratory of Environmental Health and Ecotoxicology Department of Environmental Sciences Jahangirnagar University Dhaka 1342 Bangladesh. Department of Conservative Dentistry and Endodontics Saveetha Dental College and Hospitals Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai India. Interdisciplinary Institute of Indian System of Medicine (IIISM) Directorate of Research and Virtual Education SRM Institute of Science and Technology (SRMIST) Kattankulathur 603203 Tamil Nadu India. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil Brazilian Academy of Young Scientists (ABJC) Brazil.

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