Jun Nonaka
Tohoku University
8 Papers
39 Citations
Jun Nonaka is an academic researcher from Tohoku University. The author has contributed to research in topics: Compost & Manure. The author has an hindex of 6, co-authored 8 publications.
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Papers
Analysis of the Structure of the Bacterial Community in the Livestock Manure-based Composting Process
Hiraku Sasaki,Jun Nonaka,Kenichi Otawa,Osamu Kitazume,Ryoki Asano,Takako Sasaki,Yutaka Nakai +6 more
TL;DR: Although PCR-DGGE analysis revealed the presence of different phyla in the early stages of composting, the members of the phylum Firmicutes and Bacteroidetes were observed to be one of the predominant phyla after the thermophilic phase.
28
Distribution of Ammonia Assimilating Bacteria In the Composting Process
Hiraku Sasaki,Gen. Maruyama,Hanatsu Suzuki,Jun Nonaka,Masaaki Sato,Takako Sasaki,Minoru Ohta,Yutaka Nakai +7 more
TL;DR: Ammonia assimilating bacteria were isolated from composting processes and their abilities to assimilate ammonia were evaluated in this paper, where isolates were purely cultivated in sterilized compost extract medium, many of them consumed ammonia not by nitrification but by assimilation.
20
Characterization of ammonia-assimilating bacteria in a lagoon for wastewater from a paddock of dairy cattle
Hiraku Sasaki,Gen. Maruyama,Hanatsu Suzuki,Jun Nonaka,Masaaki Sato,Takako Sasaki,Minoru Ohta,Yutaka Nakai +7 more
TL;DR: Microorganisms that assimilated ammonia in lagoon treatment processes were detected by nitrogen-limited medium that contained ammonia as the sole nitrogen source and enterobacteriaceae and Pseudomonas sp.
7
Genetic analysis of shiga-toxigenic Escherichia coli isolates from cattle in a limited region
Kenichi Otawa,Masaaki Sato,Takako Sasaki,Hiraku Sasaki,Jun Nonaka,Kikuji Ito,Toshio Kuroki,Yutaka Nakai +7 more
TL;DR: Investigation of fecal shedding of STEC in one town in Miyagi, Japan by multiplex polymerase chain reaction targeting shiga toxin gene 1, gene 2 and malB promoter gene revealed that STEC detected in the area were classified into three clusters by the variety of stx2.
6
R APID C O MMUNICA T ION Effect of a commercial microbiological additive on beef manure compost in the composting process
Hiraku Sasaki,Osamu Kitazume,Jun Nonaka,Kenji Hikosaka,Kenichi Otawa,Kikuji Itoh,Yutaka Nakai +6 more
- 01 Jan 2006
TL;DR: In this article, the authors observed the effects of a commercial microbiological additive (MA) on the beef manure composting process and investigated the changes in its physical and chemical components and microbial populations.