Search Results - "Otawa, Kenichi"

Diversity and Abundance of Ammonia-Oxidizing Bacteria and Ammonia-Oxidizing Archaea During Cattle Manure Composting by Yamamoto, Nozomi, Otawa, Kenichi, Nakai, Yutaka

“…Ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) play important roles in nitrification in various environments. They may also be key…”
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Archaeal community dynamics and detection of ammonia-oxidizing archaea during composting of cattle manure using culture-independent DNA analysis by Yamamoto, Nozomi, Asano, Ryoki, Yoshii, Hiroki, Otawa, Kenichi, Nakai, Yutaka

“…The composting process is carried out under aerobic conditions involving bacteria, archaea, and fungi. Little is known about the diversity of archaeal…”
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Abundance, Diversity, and Dynamics of Viruses on Microorganisms in Activated Sludge Processes by Otawa, Kenichi, Lee, Sang Hyon, Yamazoe, Atsushi, Onuki, Motoharu, Satoh, Hiroyasu, Mino, Takashi

“…We examined the abundance of viruses on microorganisms in activated sludge and the dynamics of their community structure. Direct counting with epifluorescence…”
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Molecular analysis of ammonia-oxidizing bacteria community in intermittent aeration sequencing batch reactors used for animal wastewater treatment by Otawa, Kenichi, Asano, Ryoki, Ohba, Yasuhiko, Sasaki, Takako, Kawamura, Eisuke, Koyama, Futoshi, Nakamura, Sakujiro, Nakai, Yutaka

“…Summary Bacterial communities and betaproteobacterial ammonia‐oxidizing bacteria (AOB) communities were evaluated seasonally in an intermittent‐aeration…”
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Development and analysis of microbial characteristics of an acidulocomposting system for the treatment of garbage and cattle manure by Asano, Ryoki, Otawa, Kenichi, Ozutsumi, Yuhei, Yamamoto, Nozomi, Abdel-Mohsein, Hosnia Swafy, Nakai, Yutaka

“…An acidulocomposting system for the treatment of cattle manure with little emission of ammonia gas was developed, and the structure of its microbial community…”
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Establishment of evaluation method to determine effects of veterinary medicinal products on manure fermentation using small-scale composting apparatus by Eguchi, Kaoru, Otawa, Kenichi, Ohishi, Ryu, Nagase, Hiroyasu, Ogata, Tomoko, Nagai, Hidetaka, Murata, Nanae, Ishikawa, Hitoshi, Hirata, Kazumasa, Nakai, Yutaka

“…To evaluate on a laboratory scale the influence of veterinary medicinal products (VMPs) excreted into feces on manure fermentation, we have developed an…”
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The first detection of Cryptosporidium deer-like genotype in cattle in Japan by Amer, Said, Honma, Hajime, Ikarashi, Makoto, Oishi, Ryu, Endo, Mikiko, Otawa, Kenichi, Nakai, Yutaka

“…The general perception is that cattle are major reservoirs for Cryptosporidium parvum infections in humans and that C . parvum is a major cause of diarrhea and…”
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Isolation of bacteriocin-like substances producing bacteria from finished cattle-manure compost and activity evaluation against some food-borne pathogenic and spoilage bacteria by Abdel-Mohsein, Hosnia, Yamamoto, Nozomi, Otawa, Kenichi, Tada, Chika, Nakai, Yutaka

“…A finished compost sample was examined for bacteriocin-like substance production against five pathogenic bacteria: Salmonella typhimurium EF 85-9, Escherichia…”
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Effect of a commercial microbiological additive on beef manure compost in the composting process by Sasaki, H.(Tohoku Univ., Sendai (Japan)), Kitazume, O, Nonaka, J, Hikosaka, K, Otawa, K, Itoh, K, Nakai, Y

“…We observed the effects of a commercial microbiological additive (MA) on the beef manure composting process and investigated the changes in its physical and…”
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Bacterial populations in epilithic biofilms along two oligotrophic rivers in the Tohoku region in Japan by Honma, Hajime, Asano, Ryoki, Obara, Masahiko, Otawa, Kenichi, Suyama, Yoshihisa, Nakai, Yutaka

“…Bacterial populations in epilithic biofilms collected from two distinct oligotrophic rivers of Japan were studied using denaturing gradient gel electrophoresis…”
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Dynamics Behavior of Phage-Host System Related to Microlunatus phosphovorus in Activated Sludge with Host Inoculation by Lee, S.H. (The University of Tokyo, Tokyo, Japan), E-mail: shlee@uwf.edu, Otawa, Kenichi (The University of Tokyo, Tokyo, Japan), Onuki, Motoharu (The University of Tokyo, Tokyo, Japan), Satoh, Hiroyasu (The University of Tokyo, Tokyo, Japan), Mino, Takashi (The University of Tokyo, Tokyo, Japan)

“…In the present study, it was observed how the phage-host system that is naturally reproduced in activated sludge is affected by the host inoculation. The…”
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Bacterial communities developing during composting processes in animal manure treatment facilities by Yamamoto, Nozomi, Otawa, Kenichi, Nakai, Yutaka

“…We analyzed succession of the bacterial communities during composting of animal manure in three individual facilities. Polymerase chain reaction (PCR) and…”
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RAPID COMMUNICATION: Effect of a commercial microbiological additive on beef manure compost in the composting process by Hiraku SASAKI, Osamu KITAZUME, Jun NONAKA, Kenji HIKOSAKA, Kenichi OTAWA, ITOH, Kikuji, NAKAI, Yutaka

“…We observed the effects of a commercial microbiological additive (MA) on the beef manure composting process and investigated the changes in its physical and…”
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Genetic analysis of shiga-toxigenic Escherichia coli isolates from cattle in a limited region by Otawa, K. (Tohoku Univ., Sendai (Japan)), Sato, M, Sasaki, T, Sasaki, H, Nonaka, J, Ito, K, Kuroki, T, Nakai, Y

“…ABSTRACT The ecology of shiga‐toxigenic Escherichia coli (STEC) is important in the animal production environment. We investigated fecal shedding of STEC in…”
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Population Dynamics of Phage-Host System of Microlunatus phosphovorus Indigenous in Activated Sludge by Lee, Sang-Hyon, Otawa, Kenichi, Onuki, Motoharu, Satoh, Hiroyasu, Mino, Takashi

“…Monitoring of the phage-host system of Microlunatus phosphovorus indigenous in activated sludge was attempted. A laboratory-scale activated sludge process was…”
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Investigation of the microbial community in a microbiological additive used in a manure composting process by Wakase, Shiho, Sasaki, Hiraku, Itoh, Kikuji, Otawa, Kenichi, Kitazume, Osamu, Nonaka, Jun, Satoh, Masaaki, Sasaki, Takako, Nakai, Yutaka

“…The objectives of this study were to investigate the fate of microorganisms by using cultivation methods as well as DNA analyses in a commercial…”
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Dynamics Behavior of Phage-Host System Related to Microlunatus phosphovorus in Activated Sludge with Host Inoculation by Lee, Sang-Hyon, Otawa, Kenichi, Onuki, Motoharu, Satoh, Hiroyasu, Mino, Takashi

“…In the present study, it was observed how the phage-host system that is naturally reproduced in activated sludge is affected by the host inoculation. The…”
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Analysis of the Structure of the Bacterial Community in the Livestock Manure-based Composting Process by Sasaki, Hiraku, Nonaka, Jun, Otawa, Kenichi, Kitazume, Osamu, Asano, Ryoki, Sasaki, Takako, Nakai, Yutaka

“…We investigated the structure of bacterial communities present in livestock manure-based composting processes and evaluated the bacterial succession during the…”
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Bacterial Communities Developing during Composting Processes in Animal Manure Treatment Facilities by Yamamoto, Nozomi, Otawa, Kenichi, Nakai, Yutaka

“…We analyzed succession of the bacterial communities during composting of animal manure in three individual facilities. Polymerase chain reaction (PCR) and…”
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Ammonia-oxidizing Archaea in laboratory-scale activated sludge systems for wastewater of low- or high-ammonium concentration by OISHI, Ryu, HIROOKA, Kayako, OTAWA, Kenichi, TADA, Chika, NAKAI, Yutaka

“…ABSTRACT Ammonia‐oxidizing bacteria (AOB) is known as ammonia‐oxidizer in wastewater treatment systems. However, ammonia‐oxidizing Archaea (AOA) is found from…”
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