A5101468558- Constructed Wetlands for Wastewater Treatment
- Phosphorus and nutrient management
- Wastewater Treatment and Reuse
- Wastewater Treatment and Nitrogen Removal
- Analytical chemistry methods development
- Biosensors and Analytical Detection
- Heavy metals in environment
- Rice Cultivation and Yield Improvement
- dental development and anomalies
- Protein Hydrolysis and Bioactive Peptides
- Advanced Chemical Sensor Technologies
- Algal biology and biofuel production
- Biochemical effects in animals
- Computational Drug Discovery Methods
- Peptidase Inhibition and Analysis
- Heavy Metals in Plants
- Plant Ecology and Soil Science
- Petroleum Processing and Analysis
- Metallurgy and Material Science
- Phytochemicals and Antioxidant Activities
- Neuropeptides and Animal Physiology
- Agricultural Systems and Practices
- Mycotoxins in Agriculture and Food
- Ichthyology and Marine Biology
- Crop Yield and Soil Fertility
National Institute for Agro-Environmental Sciences
2006-2018
Aomori Prefectural Industrial Technology Center
2004-2010
Hirosaki University
2007
National Agriculture and Food Research Organization
1991-2001
Kyushu Dental University
1998-2000
Abstract To develop a low cost and energy-saving wastewater treatment technique in combination with resource recycling amenity functions, we constructed plant bed filter ditch which useful terrestrial aquatic plants can be utilized for nitrogen phosphorus removal from wastewater. Screening studies were conducted to evaluate compare the effectiveness of 20 kinds species are economically important or exhibit on aesthetic value, including 13 species, domestic treatment. Artificial containing mg...
A simple and quick on-site test for trace levels of cadmium (Cd) in food is needed because the human toxicity this heavy metal. We developed an immunochromatography kit which uses antigen-antibody complex reaction between Cd-ethylenediaminetetraacetic acid (Cd-EDTA) anti-Cd-EDTA antibody. previously reported successful use to determine Cd concentrations brown rice with respect international standard: 0.4 mg kg⁻¹. Here, we measured, using kit, crops lower standards than rice.Cadmium extracted...
Nitrogen and phosphorus loading of rural areas in Japan has recently exceeded environmental tolerance levels, thereby causing deterioration aquatic environments. Rural need suitable low-energy, low-cost purification technologies. Vegetation-based water treatment uses the functions inherent to natural ecosystems is therefore likely be adaptable areas. Here, we review processes associated with vegetation-based systems. We then describe three technologies that are being developed for practical...
The effluent from the combined household wastewater treatment facilities used in unsewered areas of Japan is generally high nitrogen (N) and phosphorus (P). In Japan, environmental quality standards for zinc (Zn) pollution were enacted recently because toxicity Zn to aquatic ecosystems. 2004 a fallow paddy field at Koibuchi College Agriculture Nutrition was converted into surface-water-flow constructed wetland (500 m2) clean facility dormitory (100 residents) before discharge pond. We...
One of the pathways by which cadmium enters human beings is through consumption agricultural products. The monitoring has a significant role in management intake. Cadmium purification and quantification using immunochromatography were conducted this study as an alternative means analysis. samples used rice, tomato, lettuce, garden pea, Arabidopsis thaliana (a widely model organism for studying plants), soil, fertilizer. been produced from monoclonal antibody Nx2C3, recognize chelate form...
Anammox reaction requires nitrite and ammonium in the ratio of 1.1-1.3. However, controlling a partial nitrification process prior to anammox maintain this an influent reactor is not easy. In study, effect zeolite on was investigated determine method preservation case supply or ammonium. Up-flow column type reactors, filled with either non-woven fabric, were operated two-week intervals purified livestock wastewater containing nitrite. The showed significantly higher nitrogen removal rates...
The physiologically active substances in apple vinegar have not yet been chemically characterized. We studied the biological functions of produced from crushed apples, and found that constituent neutral medium-sized alpha-glycan (NMalphaG) acts as an antitumor agent against experimental mouse tumors. NMalphaG is a homoglycan composed glucose having molecular weight about 10,000 branched structure bearing alpha (1-4,6) linkages. In this study, we clarified origin by examination its content...
Abstract BACKGROUND: The behavior of cadmium in ecosystems needs to be monitored because the human toxicity this heavy metal. need recently arose for a simple and quick on‐site test trace levels Cd food environmental samples. In response, an immunochromatographic assay kit detecting was manufactured by Kansai Electric Power Co. Japan. This uses antigen–antibody complex reaction between Cd–EDTA anti‐Cd–EDTA antibody shows results terms degree color developed on paper. We previously reported...
Abstract Eutrophication of ponds for agricultural use has begun to adversely affect rice production and the residential living environment in Japan. Cultivation useful terrestrial aquatic plant species plant-bed filter ditches enables treat domestic wastewater addition resource recycling amenity functions. We evaluated ability several species, Italian ryegrass (Lolium multiflorum Lam.), hanana (Brassica campestris L. var.), African marigold (Tages erecta L.), sorghum (Sorghum vulgare Pers.),...
金コロイド標識した抗カドミウム-エチレンジアミン四酢酸錯体（Cd-EDTA）モノクローナル抗体を用いて，米中のカドミウムを簡便•迅速に定量できるイムノクロマトグラフィーを開発した．作製した抗Cd-EDTA抗体（Nx2C3）のCd-EDTAとの平衡解離定数は1.3 × 10−8 Mであり，検討した他の金属のEDTA錯体の平衡解離定数（9.6 10−7 M以上）とは70倍以上の違いがあった．米中のカドミウムを本イムノクロマトグラフィーによって測定するための前処理として，希塩酸によるカドミウムの抽出，並びにカラム処理による共雑金属の除去を検討した．その結果，イムノクロマトグラフィーの測定に影響しうる亜鉛，マンガン，マグネシウムなどの金属を排除しつつ，米中のカドミウムをほぼ完全に抽出•精製できることが分かった．また，構築したイムノクロマトグラフィーにおけるカドミウムの測定範囲は0.01 mg L−1から 0.1...
Zinc (Zn) and copper (Cu) are toxic to aquatic organisms at very low concentrations that do not affect humans. We measured the daily output of Zn Cu in wastewater from livestock farms environments because waste animal husbandry operations contains high levels Cu. At most pig Japan, a mixture urine, some faeces, service water is treated onsite treatment facilities discharged into body. Some dairy also have facilities. surveyed 21 six farms. The unit (i.e., per head) load piggery ranged 0.13...
Abstract In order to develop a low-cost and energy-saving technique for wastewater treatment in combination with resource recycling function, we constructed plant bed filter ditch which terrestrial aquatic plants can be utilized nitrogen phosphorus removal from wastewater. The experimental (4.0×0.4×0.4Hm) contained baskets filled material (zeolite) were planted higher plants. Depending on the ability of species endure saturation, height zeolite packed was changed. Kenaf (Hibiscus Cannabinus...
Abstract A bench scale experiment was conducted to compare the effectiveness of three kinds bed filters (zeolite, zeolite + shell fossils, charcoal chips) and five plant species (Chinese water spinach (Ipomea aquatica Forskal), rice (Oryza sativa L. cv. Takanari), zinnia (Zinnia elegance L.), watercress (Nasturtium officinale R. Br.), stock (Matthiona incana Br.)) for use as plant-bed filter systems in order develop low cost energy-saving devices wastewater treatment combined with resource...
Cadmium (Cd) is one of the most toxic heavy metals to humans. To prevent distribution Cd-contaminated food, a simple and quick on-site test for measuring Cd concentrations in agricultural products needed. Recently, an immunochromatography kit developed determining rice was reported be useful many other crops. We conducted interlaboratory study evaluate cereals (wheat rice) soybeans. Ten materials were used, 12 samples including two sets blind duplicates distributed laboratories Japan. The...
In Japan, environmental quality standards for Zn pollution were enacted recently because of the toxicity to aquatic ecosystems. A free-water-surface constructed wetland (500 m2) planted with Zizania latifolia Turcz. received secondary-treated wastewater from a dormitory (60 100 residents) at Koibuchi College Agriculture and Nutrition in remove nutrient salts before discharge water pond agricultural use. We examined removal efficiencies its behavior this within 3 years discussed mechanism...
It was shown in the first report (this journal No. 498, 637-44 [1923]) that formation of borned from turpentine oil by heating with organic acids depends upon kind acid used. And trichloracetic and exsiccated oxalic good results were obtained. In continuation work various experiments carried out following catalyzers : AlCl3, SnCl4, ZnCl2, FeCl3, Japanese fuller's earth wood charcoal. (compare D.R.P. 208487). As material for investigation an American d15 0.8733, [α] -5.56°(94.1mm), distilled...
Abstract Cultivation of useful terrestrial and aquatic plant species in bed filter ditches enables to treat domestic wastewater addition resource recycling amenity functions. We reported previously that a ditch planted with papyrus removed Nand P most effectively from artificial wastewater. evaluated the effectiveness treatment eutrophic pond water, which unlike wastewater, contains particulate P. Experimental were papyrus, African marigold, peppermint, impatience. These effective removing N...
XYZ系(X=活性酸素種,Y=活性酸素消去物質,Z=受容種)におけるフォトン生成を,食品に応用できる抗酸化活性評価法(XYZ-dish法)として確立するため,フォトン定量の条件をGA溶液およびブルーベリーや納豆を試料として検討した.(1) 様々な形状を持つ食品に対応するため,計測部位にdishを使用した.(2) dishにYに相当する試料としてGAを採取し,XおよびZを含有する反応液を注入することにより,フォトン生成量を精度良く測定できた.(3) dish中試料液量を1ml,反応液として441mM H2O2(X)および1136mM CH3CHO (Z)含有50mMリン酸緩衝液(pH 7.0)/MeOH=50:50を2ml注入することにより,フォトンの定量が可能となった.(4) dish中に0.17mM FeCl2を添加することにより,X=⋅OHに対するGAのフォトンを定量できた.しかしながら,Fe2+含有試料に関してはその処理法など改善点が残った.(5)...
0.4 mg kg－1以上のカドミウムを含む玄米をスクリーニングするための手法として既報のイムノクロマトグラフィーを評価した．209検体の玄米をイムノクロマトグラフィー，誘導結合プラズマ発光分析法（ICP-AES）及び原子吸光法によって測定し，ICP-AESの分析値を真値と仮定してイムノクロマトグラフィー及び原子吸光法のスクリーニング性能を評価した．0.1～0.6 kg－1のカドミウム濃度範囲におけるイムノクロマトグラフィーとICP-AESの相関は0.92±0.03であり，両者は良い相関を示した．イムノクロマトグラフィーを用いたスクリーニングでは，判定の基準となる濃度（カットオフ値）を0.3 kg－1とすることで，偽陰性と偽陽性の発生が最も少なくなり，このとき偽陰性の発生率は0％，偽陽性の発生率は4.7％であった．また，receiver-operating characteristic（ROC）プロットによってスクリーニング性能を評価したところ，本イムノクロマトグラフィーのスクリーニング性能は原子吸光法と同程度であることが示された．