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Enhanced Dye Adsorption and Bacterial Removal of Magnetic Nanoparticle-Functionalized Bacterial Cellulose Acetate Membranes

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Journal of Renewable Materials 2024年第9期12卷 1605-1624页

作者： Heru Suryanto daimon Syukri Fredy Kurniawan Uun Yanuhar Joseph Selvi Binoj Sahrul Efendi Fajar Nusantara Jibril Maulana Nico Rahman Caesar Komarudin Komarudin Centre of Advanced Material for Renewable Energy(CAMRY) Universitas Negeri MalangMalang65145Indonesia Department of Mechanical and Industrial Engineering Universitas Negeri MalangMalang65145Indonesia Department of Food and Agricultural Product Technology Faculty of Agricultural TechnologyAndalas UniversityPadang25163Indonesia Department of Chemistry Institut Teknologi Sepuluh NopemberSurabaya60111Indonesia Study Program of Aquatic Resources Management Faculty of Fisheries and Marine ScienceBrawijaya UniversityMalang65145Indonesia Institute of Mechanical Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences(SIMATS)Saveetha UniversityChennai602105India Faculty of Vocational Universitas Negeri MalangMalang65145Indonesia

Utilizing biomass waste as a potential resource for cellulose production holds promise in mitigating environmental *** current study aims to utilize pineapple biowaste extract in producing bacterial cellulose acetate-based membranes with magnetic nanoparticles(Fe_(3)O_(4)nanoparticles)through the fermentation and esterification process and explore its *** bacterial cellulose fibrillation used a high-pressure homogenization procedure,and membranes were developed incorporating 0.25,0.50,0.75,and 1.0 wt.%of Fe3O4 nanoparticles as magnetic nanoparticle for *** membrane characteristics were measured in terms of Scanning Electron Microscope,X-ray diffraction,Fourier Transform Infrared,Vibrating Sample Magnetometer,antibacterial activity,bacterial adhesion and dye adsorption *** results indicated that the surface morphology of membrane changes where the bacterial cellulose acetate surface looks *** crystallinity index of membrane increased from 54.34%to 68.33%,and the functional groups analysis revealed that multiple peak shifts indicated alterations in membrane functional ***,adding Fe_(3)O_(4)-NPs into membrane exhibits paramagnetic behavior,increases tensile strength to 73%,enhances activity against *** and ***,and is successful in removing bacteria from wastewater of the river to 67.4%and increases adsorption for anionic dyes like Congo Red and Acid Orange.

关键词： Bacterial cellulose dye adsorption Fe3O4 nanoparticles membrane pineapple waste

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Carbonation of low heat portland cement paste precured in water for different time

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Journal of University of Science and Technology Beijing 2007年第2期14卷 178-184页

作者： Deping Chen Etsuo Sakai Masaki daimon Yoko Ohba Civil and Environmental Engineering School University of Science and Technology Beijing Beijing 100083 China Graduate School of Science and Engineering Tokyo Institute of Technology Tokyo 152-8552 Japan

The carbonation technique was applied to accelerate the hydration of low heat portland cement （LHC）. Before carbonation, the demoulded pastes were precured in water for 0, 2, 7, and 21 d, respectively. The results show that precuring time in water strongly influences the carbonation process. The phenolphthalein test indicates that the paste precured in water for a shorter time is more quickly carbonated than that for a longer time. The content of calcium hydroxide increases with increasing the precuring time in water, whereas, the amount of absorbed carbon dioxide changes contrarily. Scanning electron microscope （SEM） observation shows that portlandite always fills up big air bubbles in the paste during precuring in water, and the mercury intrusion porosimetry （MIP） results show that there are less large capillary pores in the paste precured in water for a longer time. It is found that the paste without precuring in water has more carbon dioxide absorption during curing in carbon dioxide atmosphere, and its total pore volume decreases remarkably with an increase in the carbonation time than that precured in water. X-ray diffraction （XRD） and Brunauer-Emmett-Teller （BET） surface area analyses indicate that the carbonate products are vaterite and calcite; CxSHy formed from carbonation has low BET surface area in comparison with that of C-S-H formed from curing in water.

关键词： carbonation carbon dioxide absorption vaterite BET surface area pore size distribution

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DISPERSION MECHANISMS OF COMB-TYPE SUPERPLASTICIZERS CONTAINING GRAFTED POLYETHYLENE OXIDES

DISPERSION MECHANISMS OF COMB-TYPE SUPERPLASTICIZERS CONTAIN...

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第五届水泥与混凝土国际会议

作者： SAKAI Etsuo daimon Masaki Tokyo Institute of Technology 2-12-1 OokayamaMeguro-kuTokyoJAPAN152-8552

This paper discusses on graft chain length of comb-type superplasticizers affecting the adsorption and dispersion mechanisms, and their subsequent effect on the fluidity of limestone powder suspensions. Contrary to the results obtained from interparticle potential calculations, the fluidity of concentrated suspension is improved by the use of comb-type polymers having shorter grafted chain length. The dispersion mechanism of comb-type polymers in a concentrated suspension is evaluated from the perspective of molecular structure, the amount of adsorbed polymer, and the amount of entrapped water in the clusters of CaCO3 particles. Furthermore, the addition of certain soluble salts, which can effect the concentration of Ca2+ in liquid phase of CaCO3 suspensions, has been observed to decrease the adsorption of comb-type polymers on CaCO3. Thus, the polymer adsorption process can be selectively influenced by certain types of ions

关键词： comb-type superplasticezer grafted chain dispersion mechanisms steric hindrance

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Local-Scale Governance： A Review of the Zambian Approach to Fisheries Management

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Journal of Agricultural Science and Technology(B) 2015年第2期5卷 81-92页

作者： Lloyd Haambiya Emmanuel Kaunda Jeremy Likongwe daimon Kambewa Kagoli Muyangali Lake Tanganyika Fisheries Research Unit P.O. Box 420055 Mpulungu Zambia Department of Aquaculture and Fisheries Science Lilongwe University of Agriculture and Natural Resources P.O. Box 219Lilongwe Malawi Department of Rural Development and Extension Lilongwe University of Agriculture and Natural Resources P.O. Box 219Lilongwe Malawi Department of Fisheries Ministry of Agriculture and Livestock P.O. Box 350100 Chilanga Zambia

Despite Zambia＇s recent policies for optimizing sustainable management of fisheries, their success has been modest in practice. Artisanal and industrial fleets have led to decline in fish catches in the presence of currently prescribed management possibilities. Among other factors, excessive fishing and unsustainable fishing methods attributed to common property and free access to the resources are key. The country adopted co-management approach to fisheries management in the 1990s with a view to improve the fisheries stocks through community enforcement of fishery management regulations. Neither the success of co-management has been easy to measure nor its results appreciated. In view of overfishing, it is required to continue providing a range of empirical evidence of area-specific co-management interventions as basis for designing realistic and innovative solutions for the nation. This implies that new policies and institutions need to be developed by research to understand fisheries systems and better promote sustainable trajectories. The following review recommendation to central government is a coherent approach that uses and crystallizes the multiple interests and skills of co-management stakeholders. Most stakeholder groups have been involved in an ad hoc fashion through workshops, public meetings and consultative processes mainly organized by Department of Fisheries. Stakeholders should be involved from the design of the process to each step in the process, including the ongoing monitoring and evaluation. A form of memorandum of understanding is suggested. This will formally set out a process that acknowledges each stakeholder＇s interests and provide forums to facilitate discussion, consultation and monitoring of management activities.

关键词： Co-management overfishing government community stakeholder participation.

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CONTROL METHODS FOR THE EARLY HYDARTION IN Ca3Al2O6--GYPSUM SYSTEM WITH SUPERPLASTICIZERS

CONTROL METHODS FOR THE EARLY HYDARTION IN Ca3Al2O6--GYPSUM ...

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第五届水泥与混凝土国际会议

作者： Sakai Etsuo Kang Jin-Kyu daimon Masaki Tokyo Institute of Technology 2-12-1 OokayamaMeguro-kuTokyoJAPAN152-8552

It is necessary to control the early hydration of aluminate phase in order to control the fluidity. The object of this paper is to obtain the basic data for the fluidity control of cement and concrete with superplasticizers. This paper discusses the influence of superplasticizers on the early hydration of C3A-calcium sulfates by quantitative XRD. And the control methods of the hydration in C3A-gypsum system with supperplasticizers have been proposed. The early hydration of C3A is retarded, as there is much content of SO42- in the gel formed around C3 A. Adding of comb-type superplasticizers in C3A-calcium sulfates systems accelerates early hydration of C3 A, because the supply of SO42- to gel is inhibited. The early hydration of C3A in C3 A-gypsum system is retarded by replacement of gypsum to hemihydrate or increasing free-CaO contents. It is proposed that the replacement of about 50% of gypsum to hemihydrate or the increase of CaO contenets would be effective for controlling the early hydration of cement with comb-type superplasticizers.

关键词： wuperplasticizers early hydration C3A calcium sulfates free-CaO

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Effects of flooding on arbuscular mycorrhizal colonization and root-nodule formation in different roots of soybeans

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Agricultural Sciences 2013年第12期4卷 673-677页

作者： Rintaro Hattori Atsushi Matsumura Kenji Yamawaki Arata Tarui Hiroyuki daimon Graduate School of Life and Environmental Sciences Osaka Prefecture University Osaka Japan

In several countries in monsoon Asia, soybean crops are cultivated in upland fields converted from paddies. In such fields, excess soil water often induces extensive damage followed by lower nutrient uptake by this crop. In this study, the effects of flooding during the early growth stage of pot-grown soybeans on arbuscular mycorrhizal (AM) colonization and root nodule formation were investigated. Twenty days after sowing cv. Fukuyutaka, half of the pots were flooded (flooding) and the other half were left unflooded (irrigation). The plants were sampled after 39 days of flooding. Typical morphological alterations to flooding were found, including an enlarged hypocotyl diameter and partial cracking of the surface tissues, and adventitious roots developed on the soil surface. The primary and lateral roots were shorter and the adventitious roots were longer in flooding than in irrigation. In flooding, the ratio of the aerenchyma area to the stele area was 82.5% in adventitious roots. The AM colonization ratio in flooding was significantly lower than in irrigation. The ratio in flooding was markedly low in the primary and lateral roots, but it was not necessarily low in the adventitious roots. Root nodules were formed on the adventitious roots but not on the primary and lateral roots, especially in flooding. These results showing different rates of AM colonization and root nodule formation between the two different types of roots improve the understanding of responses of soybeans grown in paddy-rotated upland fields.

关键词： Adventitious Root Aerenchyma Bradyrhizobium Root System Wet Injury

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日本花生生产概述当前品种改良的进展及其展望(英文)

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花生学报 2004年第2期33卷 7-10页

作者： Hiroyuki daimon Graduate School of Agriculture and Biological Sciences Osaka Prefecture University

与多种蔬菜作物一样,花生一直以来就是日本Kanto和南部Kyushu地区的重要农作物,然而随着来自中国和美国等国外花生进口数量的增加,花生种植者的生产积极性已经变低。由于油用花生和烘烤花生的进口分别在1971和1973年开始放开,国内的花... 详细信息

与多种蔬菜作物一样,花生一直以来就是日本Kanto和南部Kyushu地区的重要农作物,然而随着来自中国和美国等国外花生进口数量的增加,花生种植者的生产积极性已经变低。由于油用花生和烘烤花生的进口分别在1971和1973年开始放开,国内的花生生产大幅下滑。2002年的种植面积是9950hm2,按花生仁计的产量是24000t。目前的消费量大约是每年60000t,并且目前还在持续下降。大果花生几乎100%进口自中国,小果花生也有7000t分别进口自中国、美国和南美洲。为了提高花生的食用品质,育种工作已经取得了进展,目前已经注册了收稿日期:2003 11 29作者简介:大门弘幸博士,日本大板府立大学农学生命科学院教授,主要从事花生教学与研究。14个花生品种,但是只有两个品种Chibahandachi和Nakateyutaka正在被广泛种植,占种植面积的80%。最近又有两个适于南部Kyushu地区的早熟品种Satonoka和Fukumasari被注册。由于近来煮花生的消费正在增长,育种目标也必须瞄准于此。口味是衡量日本花生品种食用品质的非常重要的因素,因此口味的遗传改良也必须取得进展。此文亦将提及最近在日本注册的一些花生品种的某些特征。

关键词：日本花生生产品种改良食用品质口味

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First molecular genetic evidenee for automictic parthenogenesis in cockroaches

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Insect Science 2019年第4期26卷 649-655页

作者： Masashi Tanaka Takaaki daimon Department of Applied Biosciences Graduate School of Agriculture Kyoto University Kitashirakawa Oiwakecho Sakyo-ku Kyoto Japan

Parthenogenesis is an asexual mode of reproduction that plays an important role in the evolution of sex, sociality, and reproduction strategies in insects. Some species of cockroach exhibit thelytoky, a type of parthenogenesis in which female offspring are produced without fertilization. However, the cytological and genetic mecha? nisms of parthenogenesis in cockroaches are not well understood. Here we provide the first molecular genetic evidence that cockroaches can reproduce through automixis. Using the American cockroach Periplaneta aniericana, we performed microsatellite analysis to investigate the genetic relationship between parthenogenetically produced nymphs and the parent virgin females, and found that all parthenogenetic offspring were homozygous for autosomal microsatellite markers, whereas the female parents were heterozygous. In addition, flow cytometry analysis revealed that the parthenogenetic offspring were diploid. Taken together, our results demonstrate that P. americana exhibits automixis-type thelytoky, in which diploidy is restored by gamete duplication or terminal fusion. These findings highlight the unique reproduction strategies of cockroaches, which are more varied than was previously recognized.

关键词： American cockroach automixis microsatellite Periplaneta thelytoky

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Effect of inoculation with arbuscular mycorrhizal fungi on growth, nutrient uptake and curcumin production of turmeric (<i>Curcuma longa </i>L.)

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Agricultural Sciences 2013年第2期4卷 66-71页

作者： Kenji Yamawaki Atsushi Matsumura Rintaro Hattori Arata Tarui Mohammad Amzad Hossain Yoshiyuki Ohashi Hiroyuki daimon Faculty of Agriculture University of the Ryukyus Okinawa Japan Graduate School of Life and Environmental Sciences Osaka Prefecture University Osaka Japan

Profitable turmeric (Curcuma longa L.) production requires adequate nutrients. We have investigated the effect of inoculation with arbus cular mycorrhizal fungi (AMF) on growth, nutrient uptake, yield and curcumin production of turmeric under field and glasshouse conditions. Although AMF inoculation slightly increased plant height, leaf number and shoot N content, no statistical differences were observed in vegetative growth parameters, biomass production, nutrient uptake and curcumin content compared to control plants under field conditions. It was difficult to determine the exact effect of inoculated AMF on turmeric growth because of indigenous AMF. On the other hand, turmeric showed better response to AMF inoculation under greenhouse conditions. AMF inoculation resulted in higher biomass production and nutrient uptake of turmeric. Moreover the concen tration of curcumin, contained in the rhizome of turmeric, increased in AMF treatment. These results indicate that AMF inoculation has beneficial effects on turmeric growth and curcumin production. AMF inoculation to turmeric field would be effective when indigenous soil populations of AMF are low or native AMF are no longer effective.

关键词： Arbuscular Mycorrhizal Fungi Curcumin Rhizome Turmeric

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Nitrogen Uptake from Amino Acids in Maize through Arbuscular Mycorrhizal Symbiosis

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American Journal of Plant Sciences 2013年第12期4卷 2290-2294页

作者： Atsushi Matsumura Shinji Taniguchi Kenji Yamawaki Rintaro Hattori Arata Tarui Katsuya Yano Hiroyuki daimon Graduate School of Bioagricultural Sciences Nagoya University Nagoya Japan Graduate School of Life and Environmental Sciences Osaka Prefecture University Osaka Japan

Maize plants are well colonized with arbuscular mycorrhizal fungi (AMF), which contribute mineral nutrients absorption from soil. However little is known about their role in nitrogen (N) absorption especially from amino acids, which reach a considerable quantity in soils. This experiment was conducted to investigate N acquisition from amino acids through AMF symbiosis. AMF inoculation clearly increased the N content of maize supplied with amino acids (Glu, Ala and Pro). Further study of xylem sap revealed that the composition of amino acids was changed by AMF inoculation. These results indicate that AMF contribute N from amino acids, and may affect the nitrogen assimilation of host plants.

关键词： Amino Acid Composition Ala Glu Pro Xylem Sap

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