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Biochemical and Microbial Properties of Palm Wine: Effect of Tapping Length and Varietal Differences

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food and nutrition Sciences 2016年第9期7卷 763-771页

作者： Detto Karamoko N’Dédé Théodore Deni Jean-Luc Aboya Moroh Koffi Maïzan Jean-Paul Bouatenin Koffi Marcellin Dje Laboratory of food Microbiology and Biotechnology Department of Biochemistry and Food Sciences University Peleforo Gon Coulibaly of Korhogo Korhogo Cote d’Ivoire Laboratory of Biotechnology and food Microbiology Department of Food Sciences and Technology University Nangui Abrogoua of Abidjan Abidjan Cote d’Ivoire

The effects of variety and tapping length on several physical, biochemical, nutritional and micro-biological parameters (viscosity, pH, Total Titratable Acidity (TTA), fermenting microorganisms, contaminants) of palm wine extracted from two varieties of palm oil tree (Dura and Tenera) were studied. Each variety presented its own palm wine specific characteristics regarding the chosen parameters. Microbiological and biochemical contents of palm wine were determined during the tapping of Dura and Tenera felled oil palm trees for 4 weeks. Some differences in chemical compositions between fresh palm wine samples of two palm trees varieties were observed. The exudates obtained during the first day of tapping of Dura palm wine were very sugary, less sour and did not contain substantial concentrations of alcohol but the highest loads of microorganisms were observed in Tenera palm wine. Throughout the tapping of palm wine, yeasts and lactic acid bacteria population changed with undoubtedly influence on the palm wine quality.

关键词： Viscosity Palm Wine Fermentation Palm Oil Trees

Nitrification inhibitor nitrapyrin does not affect yield-scaled nitrous oxide emissions in a tropical grassland

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Pedosphere 2021年第2期31卷 265-278页

作者： Ana Gabriela PÉREZ-CASTILLO Cristina CHINCHILLA-SOTO Jorge Alberto ELIZONDO-SALAZAR Ronny BARBOZA Dong-Gill KIM Christoph MÜLLER Alberto SANZ-COBENA Azam BORZOUEI Khadim DAWAR Mohammad ZAMAN Environmental Pollution Research Center(CICA) University of Costa RicaMontes de Oca 11501(Costa Rica) Alfredo Volio Mata Experimental Station University of Costa RicaOchomogo 30304(Costa Rica) Wondo Genet College of Forestry and Natural Resources Hawassa UniversityP.O.Box 128Shashemene(Ethiopia) Institute of Plant Ecology Justus Liebig University GiessenHeinrich-Buff Ring 26Giessen 35392(Germany) School of Biology and Environmental Science University College DublinBelfieldDublin 4(Ireland) Research Center for the Management of Environmental and Agricultural Risks(CEIGRAM) Department of Chemistry and Food Technology(ETSIAAB)Universidad Politécnica de MadridMadrid 28040(Spain) Nuclear Agriculture Research School Nuclear Science and Technology Research Institute(NSTRI)Karaj 31465-1498(Iran) Department of Soil and Environmental Sciences The University of AgriculturePeshawar 25000(Pakistan) Soil and Water Management&Crop nutrition Section Joint Food and Agriculture Organization(FAO)/International Atomic Energy Agency(IAEA)Division of Nuclear Techniques in Food and AgricultureDepartment of Nuclear Sciences and ApplicationsIAEAVienna International CentreP.O.Box 100Vienna 1400(Austria)

Urea is the most common nitrogen(N)fertilizer used in the tropics but it has the risk of high gaseous nitrogen(N)*** of nitrification inhibitor has been suggested as a potential mitigation measure for gaseous N losses in N fertilizer-applied *** a field trial on a tropical Andosol pastureland in Costa Rica,gaseous emissions of ammonia(NH_(3))and nitrous oxide(N_(2)O)and grass yield were quantified from plots treated with urea(U;41.7 kg N ha^(-1)application^(-1))and urea plus the nitrification inhibitor nitrapyrin(U+NI;41.7 kg N ha^(-1)application^(-1)and 350 g of nitrapyrin for each 100 kg of N applied)and control plots(without U and NI)over a six-month period(rainy season).Volatilization of NH_(3)(August to November)in U(7.4%±1.3%of N applied)and U+NI(8.1%±0.9%of N applied)were not significantly different(P>0.05).Emissions of N_(2)O in U and U+NI from June to November were significantly different(P<0.05)only in October,when N_(2)O emission in U+NI was higher than that in *** and crude protein production of grass were significantly higher(P<0.05)in U and U+NI than in the control plots,but they were not significantly different between U and U+*** was no significant difference in yield-scaled N_(2)O emission between U(0.31±0.10 g N kg^(-1)dry matter)and U+NI(0.47±0.10 g N kg^(-1)dry matter).The results suggest that nitrapyrin is not a viable mitigation option for gaseous N losses under typical N fertilizer application practices of pasturelands at the study site.

关键词： ammonia volatilization Andosol Costa Rica field trial gaseous N loss greenhouse gas emission urea

Adsorption of Macroporous Phosphonic Acid Resin for Nickel

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Journal of Wuhan University of technology(Materials Science) 2005年第4期20卷 16-19页

作者：熊春华 College of food Science Biotechnology and Enviromental Engineering Zhejiang Gongshang University Hangzhou 310035 China

Tje adsorption bchavior and mechanism of a novel chelate resin,macroporous phosphonic acid resin（PAR）for Ni（Ⅱ）were *** stotically saturated adsorption capacity is 64.3mg·g^-1 resin at 298K in HAc-NaAc *** Ni（Ⅱ）adsorbed on PAR can be eluted by 0.5mal·L^-1 HCl and the elution percentage reaches 96.6%.The resin can be regenerated and reused without abvious decrease in adsorption *** apparent adsorption rate constant is k298=2.6×10^-5s^-*** adsorption behavior of PAR for Ni（Ⅱ）obeys the Freundllich *** thermodynamie adsorption *** change △H,free energy change △G and entropy change △S of PAR for Ni（Ⅱ）are 3.36kJ·mol^-1,-5.47kJ·mol^-1 and 29.6J·mol^-1·K^-1,*** apparent activation energy is Ea=12.2kJ·mol^-1,The molar coordination ratio of the functional group of PAR to Ni（Ⅱ）is about 4：*** adsorption mechanism of PAR for Ni（Ⅱ）was examined by a chemical method and IR spectrometry.

关键词： macroporous phosphonic acid resin nickel adsorption mechanism

Characterization of Biosurfactant from a Diesel-oil Degradation Bacterium and Application Potential in Beauty Care Products

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Characterization of Biosurfactant from a Diesel-oil Degradat...

Measurement and Assessment of Physical Activity by Information and Communication technology

2011 3rd International Conference on Chemical, Biological and Environmental Engineering(ICBEE2011)

作者： Ta-Chen Lin Chun-Yeh Chen Tzu-Ching Wang Yuh-Shuen Chen Department of Tourism and Leisure Management Fortune Institute of Technology Taiwan Department of food Science and technology Hungkuang University Taiwan Department of food and Beverage Management Tzuhui Institute of Technology Taiwan

The aim of this investigation was to analyze the characteristics of a novel biosurfactant produced from Alcaligenes piechaudii CC-ESB2 bacterium and then evaluate their application potential in beauty care *** this experiment,the Alcaligenes piechaudii CC-ESB2 was firstly incubated in the BH medium addition of soybean oil to produce the novel *** biosurfactant was then extracted and purified from the culture solution for characteristic analysis,such as physical chemistry properties(i.e.,conductivity,pH,viscosity,and density),surfactant activity properties(*** tension,emulsification index(E24) and hydrophobicity),and critical micelle concentration(CMC).The purified novel biosurfactant was also used as an emulsifier in skin moisturizer preparation.A total of five skin moisturizers were prepared by biosurfactant and the Chinese medical herbs(i.e.,Pearl powder and extracts from licorice,chamomile,aloe,and adlay) and then provided for safety(i.e.,skin prick and allergic test;SPAT) and functional analysis(i.e.,water retention capacity and emulsifiability).At the end of biosurfactant production,a total of 1.3g of biosurfactant powder(purity:90.2±0.5%) was *** characteristics of biosurfactant were the conductivity(85.5±0.6 ms/cm),the pH value(7.07±0.06),the viscosity(5.4±0.5 cp),the density(0.997±0.003 g/ml).The E24,hydrophobicity,surface tension and CMC of 10g/L biosurfactant solution were determined to be 85.5±2.8%,96.2±0.7%,35.4±1.6dyne/cm and 50.5±4.3 mg/L,*** skin prick and allergic test,which no show adverse *** the results of functional analyses,the water retention capacity and emulsifiability achieved 80% in all skin moisturizers when the concentration of the biosurfactant additives > 500mg/*** biosurfactant has the quite good characters of surface activity and the high potential for commercial *** may be applied in other territory in the future.

关键词： Biosurfactant,Alcaligenes piechaudii CC-ESB2,Diesel-oil Degradation Bacterium,skin moisturizer

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Biomedical and Environmental Sciences 2017年第6期30卷 465-472页

作者： ZHANG Qun YANG Xi LIU Dan ZHAO Wen Hua Chinese Center for Disease Control and Prevention Beijing 102206 China National Institute for nutrition and Health Chinese Center for Disease Control and Prevention Beijing 100050 China

This study provides explorative insights into the information and communication technology （ICT） for promoting the physical activity level. ICT has provided innovative ideas and perspectives for PA measurement, assessment, evaluation and health intervention. ICT that aims to increase exercise for the entire population should be of a well-oriented and easy-to-use design with the options of tailored and personalized feedback, coaching, and ranking and supporting; it should be capable of setting goals and working with a schedule and be accompanied by a website to provide overviews of the users＇ exercise results and progress.

关键词： Physical activity Measurement Assessment Information and communicationtechnology

Quality Changes of Frozen Meat During Storage and Control Measures

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肉类研究 2010年第6期24卷 86-88页

作者： DU Jiangping Institute of food Science and technology Yunnan Agricultural University Kunming 650201 China

The frozen is a common method of meat storage, generally applications in meat industrial. However, the quality of meat still have taken place changes even in the low temperature, This article discussion on the changes... 详细信息

关键词：肉类冷冻质量管理贮藏方法

Morphology dependent? Elucidating the catalyst structures of Ni/Ce_(0.75)Zr_(0.25)O_(2) in the steam reforming of acetic acid

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Green Chemical Engineering 2022年第1期3卷 44-54页

作者： Ravipart Kun-udom Salina Jantarang Zehui Du Boonyarach Kitiyanan Thirasak Rirksomboon Vissanu Meeyoo The Petroleum and Petrochemical College Chulalongkorn UniversityBangkok10330Thailand Center of Excellence on Petrochemical and Materials technology Bangkok10530Thailand Center for Advanced Studies in Nanotechnology for Chemical Food and Agricultural IndustriesKasetsart University Institute for Advanced StudiesKasetsart UniversityBangkok10900Thailand Centre for Advanced Materials and Environmental Research Mahanakorn University of TechnologyBangkok10530Thailand

In this work,the steam reforming of acetic acid was catalyzed by Ni-based catalysts supported on ceria-zirconia of different morphological structures(nanopolyhedra,nanorods,and nanocubes).The altered shapes led to the variation in catalyst properties,such as the exposed planes,ease of Ni reduction/oxidation,and carbon removal,which affected its catalytic ***,it was found that the exposed planes present in cubic{100}and rod structures({100}and{110})enhanced the formation of Ni^(0) and subsequently promoted the reforming ***,oxygen vacancies and mobility properties of{100}and{110}exposed planes can promote the oxidation reaction of carbon,resulting in a stable catalyst for the reforming of acetic *** results also showed that the type of depositing carbons was influenced by the support *** the catalysts showed a100% acetic acid conversion with the 15Ni/NC-Ce Zr(cubic structure)catalyst exhibited the highest hydrogen yield.

关键词： Acetic acid Steam reforming Nickel Ceria-zirconia Nanoparticles

Mosquito larva distribution and natural Wolbachia infection in campus areas of Nakhon Ratchasima,Thailand

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Asian Pacific Journal of Tropical Medicine 2022年第7期15卷 314-321页

作者： Thunyarat Surasiang Sirilak Chumkiew Pongsakorn Martviset Pathanin Chantree Mantana Jamklang Institute of Molecular Biosciences Mahidol UniversitySalayaNakhon PathomThailand School of Biology Institute of ScienceSuranaree University of TechnologyThailand Research Unit in Nutraceuticals and food Safety Thammasat UniversityPathumthaniThailand Department of Preclinical Science Faculty of MedicineThammasat UniversityPathumthaniThailand School of Preclinical Sciences Institute of ScienceSuranaree University of TechnologyThailand

Objective:To determine the prevalence of mosquito larvae in campus areas and the infection rate of endosymbiotic bacteria,Wolbachia in mosquito ***:The mosquito larvae samples were collected in residential areas and academic buildings of Suranaree University of technology located in Northeastern Thailand during *** species identification was performed using GLOBE mosquito protocols and Rattanarithikul&Panthusiri’s *** gene encoding for the surface protein of Wolbachia was amplified by PCR and confirmed by DNA ***:Armigeres *** the highest proportion of mosquito larvae followed by Culex spp.,Aedes albopictus,Aedes aegypti,and Toxorynchites spp.,*** aegypti have breeding sites mostly in the containers found indoors,whereas the main breeding sites of Aedes albopictus were found in both outdoors and *** House Index and Breteau Index for Aedes *** more than 5%and 20%,respectively,in both areas,indicating that these areas are dengue *** highest proportion of Wolbachia infection was found in the larvae of Culex spp.(86.21%),followed by Aedes albopictus(69.23%)and rarely detected in Aedes aegypti(9.09%).Conclusion:The present study reported the first natural infection of Wolbachia in mosquito larvae in *** result suggested that the mosquito species containing higher proportion of Wolbachia are less likely to be vectors for ***,Wolbachia transfection in mosquito larvae could be applied as a biocontrol for dengue and other mosquito-borne disease prevention.

关键词： Mosquito larvae Wolbachia Breeding sites House Index Breteau Index Campus area Dengue

Chromosomal Karyotypes of Medicinal Plant Gynura medica

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Agricultural Biotechnology 2012年第3期1卷 15-17页

作者： Sanwei FAN Lihui DONG Qingzhi LING Xiaowei TU Zhi LIN Lili GAO Zhaojun WEI Zhejiang Pharmaceutical College School of Biotechnology and food Engineering Hefei University of Technology

[ Objective] This study aimed at investigating the chromosomal characteristics and karyotypes of Gynura medica. [ Method ] Stem tips of G. medica seedlings were taken every 20 min from 6：30 to 10：30 am, and then were treated and squashed. The slices were observed under a microscope for investigating the chromosomal number and karyotypes of the cells in metaphase in which the chromosomes were well dispersed. [ Result] In the total 102 stem tip cells in meta- phase, 96.08% of cells were with 20 chromosomes, and 3.92% of cells were with 40 chromosomes. Optimal time for sampling was from 7：50 to 9：30 am, when more cells were in metaphase. [Conclusion] C. medica is the diploid plant with 20 chromosomes. Karyotype analysis gets formula 2n = 2x = 20m, and all 10 pairs of chromosomes belong to type 1A. The article reporls the chromosomes characteristics of G. rnedica firstly.

关键词： Gynura reedica Chromosome Karyotype