Journal of Urban Living and Health Association最新文献_第4页

Capillary Electrophoresis Research into Lead Elution from Paint Films on Household Products 家用产品漆膜中铅的毛细管电泳洗脱研究

Journal of Urban Living and Health Association Pub Date : 2010-01-30 DOI: 10.11468/SEIKATSUEISEI.54.27

K. Isama, T. Kawakami, T. Tsuchiya, A. Matsuoka

引用次数: 0

Application of Gene Technology in Food Analysis 基因技术在食品分析中的应用

Journal of Urban Living and Health Association Pub Date : 2010-01-30 DOI: 10.11468/SEIKATSUEISEI.54.13

M. Ki, Taro Murakami, A. Nakama

引用次数: 0

Study on Water Treatment by Granular Gibbsite in Lake Biwa 粒状三水石处理琵琶湖水体的研究

Journal of Urban Living and Health Association Pub Date : 2009-10-30 DOI: 10.11468/SEIKATSUEISEI.53.261

F. Ogata, M. Kabayama, K. Wada, M. Kunou, K. Kakehi, N. Kawasaki

引用次数: 0

Optimum Conditions for Coagulation-sedimentation Using Natto as a Flocculant 纳豆絮凝沉淀的最佳工艺条件

Journal of Urban Living and Health Association Pub Date : 2009-10-30 DOI: 10.11468/SEIKATSUEISEI.53.271

H. Moriwaki, Yumi Yaguchi, Kazuma Haraguchi, Michiya Akamine, Eri Unozawa, Eriko Kitahara, K. Matsuo, Y. Matsushima

引用次数: 0

Filter-based Measurement of PM2.5 Mass Concentration and Chemical Composition 基于过滤器的PM2.5质量浓度和化学成分测量

Journal of Urban Living and Health Association Pub Date : 2009-10-30 DOI: 10.11468/SEIKATSUEISEI.53.231

Makiko Yamagami

引用次数: 0

Formation of Reactive Oxygen Species in Beverages and Beverage Model Systems and Suppression Thereof 饮料和饮料模型系统中活性氧的形成及其抑制

Journal of Urban Living and Health Association Pub Date : 2009-10-30 DOI: 10.11468/SEIKATSUEISEI.53.211

Y. Tsujimoto

{"title":"Formation of Reactive Oxygen Species in Beverages and Beverage Model Systems and Suppression Thereof","authors":"Y. Tsujimoto","doi":"10.11468/SEIKATSUEISEI.53.211","DOIUrl":"https://doi.org/10.11468/SEIKATSUEISEI.53.211","url":null,"abstract":"In 2006, the Japanese Government announced that benzene might form in beverages to which had been added both benzoic acid (preservative) and L-ascorbic acid (antioxidant, fortifier). While the mechanism of benzene formation is not well understood, reactive oxygen species (ROS) are considered to participate. ROS are known to induce food deterioration such as lipid peroxidation and controlling their formation is a challenge for the food industry. The present review focuses on transition metal-assisted ROS formation and mitigation thereof in beverages and beverage model systems. Hydrogen peroxide has been detected in some beverage preparations and products, such as green tea, black tea, and coffee. Its formation is ascribed to prooxidant action by tea constituents (catechins) or added L-ascorbic acid. The prooxidation of these antioxidants is considered to involve transition metal catalysis. Transition metals such as iron and copper play an important role in ROS formation. In iron, oxidation of ferrous iron to a ferric state is probably the initiation step and produces superoxide. Many investigations on non-heme iron indicate that the oxidation is dependent on the sterically bulky character of the chelator (ligand) as well as the thermodynamic stability of the ferric chelate. This is typically exemplified by the chelators of EDTA and DTPA. The importance of the steric factor is also stressed in the oxidation of heme iron and in the reduction of ferric iron using superoxide to hydroxyl radical via the Harber-Weiss reaction. The discussions in the present review may be helpful for the development of new iron fortifiers for beverages that generate less ROS.","PeriodicalId":17443,"journal":{"name":"Journal of Urban Living and Health Association","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85222122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Intake of Natto and Soybeans on Postprandial Blood Glucose Levels in Healthy Adults 纳豆和大豆对健康成人餐后血糖水平的影响

Journal of Urban Living and Health Association Pub Date : 2009-10-30 DOI: 10.11468/SEIKATSUEISEI.53.257

A. Ishikawa, M. Kishi, K. Yamagami

引用次数: 5

Outbreak of Pandemic Influenza H1N1 and Viral Detection in Osaka, 2009 2009年大阪H1N1大流行性流感爆发及病毒检测

Journal of Urban Living and Health Association Pub Date : 2009-10-30 DOI: 10.11468/SEIKATSUEISEI.53.226

T. Kase

引用次数: 1

Principle and Application of Sanitization Function of Plasma Cluster Ions 等离子体簇离子消毒功能的原理及应用

Journal of Urban Living and Health Association Pub Date : 2009-10-30 DOI: 10.11468/SEIKATSUEISEI.53.239

Misaki Nakamura, K. Nishikawa

引用次数: 0

Recent Trend of Fungal Contamination in Bathrooms 浴室真菌污染的最新趋势

Journal of Urban Living and Health Association Pub Date : 2009-10-30 DOI: 10.11468/SEIKATSUEISEI.53.247

N. Hamada

{"title":"Recent Trend of Fungal Contamination in Bathrooms","authors":"N. Hamada","doi":"10.11468/SEIKATSUEISEI.53.247","DOIUrl":"https://doi.org/10.11468/SEIKATSUEISEI.53.247","url":null,"abstract":"A comparison was made of fungal flora in bathrooms in 1997 and in 2007 to clarify the trend of fungal contamination and the causative factors. In 1997, Cladosporium and Exophiala were predominant on the walls and floors of bathrooms. In 2007, the fungal count on walls was lower than in 1997, and not only Cladosporium, but also Exophiala, Cladophialophora, Phoma, and Scolecobasidium were frequently observed. Cladosporium was found to be more common in bathrooms of the classic type with cement surfaces. In contrast, Exophiala, Phoma, Cladophialophora and Scolecobasidium were predominant in bathrooms of the modular type made of plastic boards, which have recently become more common than the classic type. Moreover, fungal contamination involving these four fungi, was often found on toys, soap dishes, and drain mouths made of plastic materials. These four fungi are known to use surfactant as nutrient, and surfactant may thus be more difficult to wash away from plastic than from tile and cement. The factors affecting the fungal flora on bathroom walls and floors were also compared. On both sampling occasions, more fungal contamination was detected in bathrooms located on lower floors or used by larger families than in those on upper floors or used by smaller families. Fungal contamination in bathrooms with dryer fans , which have recently become common, was about half of that in those without. Factors removing moisture from bathrooms were therefore thought to reduce fungal contamination. However, reducing fungal contamination is more difficult on floors than on walls, and no effective method has yet been found in spite of various improvements in materials and structure.","PeriodicalId":17443,"journal":{"name":"Journal of Urban Living and Health Association","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84355926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0