博士（工学）, Doctor of Engineering (Tohoku University)

Chemical Engineering

Supercritical Fluid Technology

Biomass Engineering

2024
Professor, Shinshu University

2014 - 2024
Associate Professor, Shinshu University

2011 - 2014
Associate Professor, Department of Chemical Engineering, National Institute of Technology, Ichinoseki College

2007 - 2011
Assistant Professor, Department of Chemical Engineering, National Institute of Technology, Ichinoseki College

2006 - 2007
Research Associate, Department of Chemical Engineering, National Institute of Technology, Ichinoseki College

2005 - 2006
Postdoctoral fellow, Research Center for Compact Chemical Process, National Institute of Advanced Industrial Science and Technology (AIST)

2007 - 2008, Visiting Scholar, The University of Michigan, USA

2002, Tohoku University (Master course, Department of Chemical Engineering, Graduate School of Engineering)

2005, Tohoku University (Doctor course, Department of Chemical Engineering, Graduate School of Engineering)

2000, Tohoku University (Biochemistry Engineering, Faculty of Engineering)

2017
Young Researcher Award of The Japanese Society for Chitin and Chitosan, Japanese Society for Chitin and Chitosan

2016
Hot Topics Award at Annual Meeting of Japan Society for Bioscience, Biotechnology, and Agrochemistry

2012
Poster Award of The 7th Conference on Biomass Science of The Japan Institute of Energy

2011
Poster Award of The 6th Conference on Biomass Science of The Japan Institute of Energy

2008
Young Researcher Award of The Society of Advanced Materials Processing

2003
Young Researcher Award of The Japan Institute of Energy

2003
Excellent Award in The Society of Chemical Engineers, Japan

High-Speed Synthesis of Thermo-responsive Polymers by Boosted Polymerization of N,N-Diethyl Acrylamide in High-Temperature Water
Sumito Ishii, Akinori Sezai, Yasuhiro Kohsaka, Shigeru Deguchi, and Mitsumasa Osada
Industrial & Engineering Chemistry Research, 61(46), 17012-17016, 09 Nov. 2022

Prediction of the solubility of organic compounds in high-temperature water using machine learning
Mitsumasa Osada, Kotaro Tamura, Iori Shimada
Journal of Supercritical Fluids, 190, 105733, 02 Sep. 2022

Preparation of hypoallergenic ovalbumin by high-temperature water treatment
Kazunobu Okon, Tadashi Yoshida, Makoto Hattori, Hiroshi Matsuda, Mitsumasa Osada
Bioscience, Biotechnology, and Biochemistry, 85(12), 2442-2449, Dec. 2021

Environment-friendly Utilization of Squid Pen with Water: Production of ꞵ-Chitin Nanofibers and Peptides for Lowering Blood Pressure
Mitsumasa Osada, Mizuki Nishiwaki, Takashi Watanabe
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 189, 921-929, 31 Aug. 2021

Effect of the Degree of Acetylation on the Physicochemical Properties of alpha-Chitin Nanofibers
Junnosuke Machida, Shin Suenaga, Mitsumasa Osada
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 155, 350-357, Jul. 2020

Conversion of N-acetyl-D-glucosamine to Nitrogen-Containing Chemicals in High-temperature Water
Mitsumasa Osada, Shinaya Shoji, Shin Suenaga, Makoto Ogata
Fuel Processing Technology, 195, 106154, Dec. 2019

Non-catalytic Conversion of Chitin into Chromogen I in High-temperature Water
Mitsumasa Osada, Hisaya Kobayashi, Tatsuya Miyazawa, Shin Suenaga, Makoto Ogata
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 136, 994-999, Sep. 2019

イオン液体[Bmim]Cl中でのキチンのモノマーN-アセチルグルコサミン(GlcNAc）のフラン化合物への転換反応に与えるLewis酸およびBrønsted酸の影響
東大輝, 吉井孝彰, 渡邉賢, 平賀佑也, Smith Jr. Richard L., 尾形慎, 長田光正
化学工学論文集, 45(4), 141-146, Jul. 2019

Hydrothermal Gelation of Pure Cellulose Nanofiber Dispersions
Shin Suenaga, Mitsumasa Osada
ACS Applied Polymer Materials, 1(5), 1045-1053, May 2019

Preparation of β-Chitin Nanofiber Aerogels by Lyophilization
Shin Suenaga, Mitsumasa Osada
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 126, 1145-1149, Apr. 2019

Parameters of Hydrothermal Gelation of Chitin Nanofibers Determined Using a Severity Factor
Shin Suenaga, Mitsumasa Osada
Cellulose, 25(12), 6873-6885, Dec. 2018

Systematic Dynamic Viscoelasticity Measurements for Chitin Nanofibers Prepared with Various Concentrations, Disintegration Times, Acidities, and Crystalline Structures.
Shin Suenaga, Mitsumasa Osada
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 115, 431-437, Aug. 2018

Self-sustaining Cellulose Nanofiber Hydrogel Produced by Hydrothermal Gelation without Additives
Shin Suenaga, Mitsumasa Osada
ACS Biomaterials Science & Engineering, 4(5), 1536-1545, May 2018

キチンおよびN-アセチルグルコサミンの高温高圧水処理
長田光正
キチン・キトサン研究, 24(1), 45-52, Apr. 2018

NMR Spectroscopic Structural Characterization of a Water-soluble β-(1 -> 3, 1 -> 6)-Glucan from Aureobasidium Pullulans
Hiroyuki Kono, Nobuhiro Kondo, Katsuki Hirabayashi, Makoto Ogata, Kazuhide Totani, Shinya Ikematsu, Mitsumasa Osada
Carbohydrate Polymers, 174, 876-886, Oct. 2017

Effect of acidity on the physicochemical properties of α- and β-chitin nanofibers
Shin Suenaga, Kazuhide Totani, Yoshihiro Nomura, Kazuhiko Yamashita, Iori Shimada, Hiroshi Fukunaga, Nobuhide Takahashi, Mitsumasa Osada
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 102, 358-366, Sep. 2017

木質バイオマスの好気性醗酵速度におよぼす温度，含水率，C/N比の影響
髙橋伸英，望月俊，増田顕澄，嶋田五百里，長田光正，福長博
化学工学論文集, 43(4), 231-237, Jul. 2017

Effect of Purification Method of β-Chitin from Squid Pen on the Properties of β-Chitin Nanofibers
Shin Suenaga, Nozomi Nikaido, Kazuhide Totani, Kazunori Kawasaki, Yoshihito Ito, Kazuhiko Yamashita, Mitsumasa Osada
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 91, 987-993, Oct. 2016

反応速度論を用いた高温アルカリ水によるグリセリンからの乳酸ナトリウム合成反応の解析と最適条件の検討
福村卓也，横田真実，長田光正，佐藤和久
化学工学論文集, 42(4), 148-154, Jul. 2016

Effect of Sub- and Supercritical Water Treatments on the Physicochemical Properties of Crab Shell Chitin and its Enzymatic Degradation
Mitsumasa Osada , Chika Miura, Yuko S. Nakagawa, Mikio Kaihara, Mitsuru Nikaido,　Kazuhide Totani
Carbohydrate Polymers, 134, 718-725, 10 Dec. 2015

Non-catalytic Dehydration of N,N′-Diacetylchitobiose in High-temperature Water
Mitsumasa Osada, Kazushi Kikuta, Kohei Yoshida, Kazuhide Totani, Makoto Ogata, Taichi Usui
RSC Advances, 4(64), 33651-33657, Aug. 2014

Non-catalytic Synthesis of Chromogen I and III from N-Acetyl-D-Glucosamine in High-temperature Water
Mitsumasa Osada, Kazushi Kikuta, Kohei Yoshida, Kazuhide Totani, Makoto Ogata, Taichi Usui
Green Chemistry, 15(10), 2960-2966, Oct. 2013

ハンドヘルドテクノロジーとセンサーを活用した高専における化学工学実験
梅野善雄，貝原巳樹雄，福村卓也，梁川甲午，長田光正
工学教育, 61(4), 33-38, Aug. 2013

地域糖質資源を活用した機能性食品・素材の開発
戸谷一英，古関健一，中川裕子，長田光正，二階堂満
応用糖質科学, 3(2), 159-165, Jul. 2013

Effects of Supercritical Water and Mechanochemical Grinding Treatments on Physicochemical Properties of Chitin
Mitsumasa Osada, Chika Miura, Yuko S. Nakagawa, Mikio Kaihara, Mitsuru Nikaido, Kazuhide Totani
Carbohydrate Polymers, 92(2), 1573-1578, Feb. 2013

Gasification of Sugarcane Bagasse over Supported Ruthenium Catalysts in Supercritical Water
Mitsumasa Osada, Aritomo Yamaguchi, Norihito Hiyoshi, Osamu Sato, Masayuki Shirai
Energy&Fuels, 26(6), 3179-3186, Jun. 2012

Effect of Sub- and Supercritical Water Pretreatment on Enzymatic Degradation of Chitin
Mitsumasa Osada, Chika Miura, Yuko S. Nakagawa, Mikio Kaihara, Mitsuru Nikaido, Kazuhide Totani
Carbohydrate Polymers, 88(1), 308-312, Mar. 2012

水だけを用いたキチンの精製と材料化
長田光正
Glycoforum, 26(2), A5, Apr. 2023

キチン系バイオマスの湿式解繊によるナノファイバー化
末永信, 長田光正
ケミカルエンジニアリング, 63(4), 244 - 250, Apr. 2018

座談会 超スマート社会とこれからの化学工学
小林克彦、高井努、長田光正、古山通久、廣田淳一
化学工学, 82(1), 2 - 10, Jan. 2018

平成27年度「バイオマス夏の学校」実施報告
長田光正，高橋伸英
日本エネルギー学会誌, 94(11), 1314 - 1315, Nov. 2015

フォーラム　会員の声　信州上田より
長田光正
触媒, 57(4), 252, Aug. 2015

高温高圧水中でのセロビオースの反応挙動の解明
長田光正
化学工学, 78(12), 917, Dec. 2014

化学工学年鑑2014　9．超臨界流体　9．4 反応・物質変換
長田光正
化学工学, 78(10), 712 - 713, Oct. 2014

キチン系バイオマスおよびアミノ糖の変換反応による窒素含有化合物の合成
長田光正
触媒, 56(5), 314, Oct. 2014

高温高圧水を利用したキチン系バイオマスの機能性素材への変換
長田光正
ケミカルエンジニアリング, 59(7), 533 - 538, Jul. 2014

キチン系バイオマスの湿式解繊によるナノファイバー化, ナノファイバーの製造・加工技術と応用事例
長田光正，末永信, Joint work
技術情報協会, 第7章 第4節 222-234 Oct. 2019
ISBN:978-4-86104-765-7

超臨界流体を用いる合成と加工
長田光正, キチン・アミノ糖の高温高圧水処理
シーエムシー出版, 5.3節 157-165 Oct. 2017

キチン・キトサンの最新科学技術 ～機能性ファイバーと先端医療材料～ 第5章
戸谷一英，長田光正, イカ中骨由来β-キチンナノファイバーの製造と物性
技報堂出版、日本キチン・キトサン学会編, 75-92 Jul. 2016
ISBN:978-4-7655-0399-0

Recent Advances in Thermo-Chemical Conversion of Biomass Chapter 15
Masayuki Shirai, Mitsumasa Osada, Aritomo Yamaguchi, Norihito Hiyoshi, Osamu Sato, Utilization of Supercritical Fluid for Catalytic Thermochemical Conversions of Woody-Biomass Related Compounds
Elsevier, 437-453 Jan. 2015
ISBN:978-0-444-63289-0

Green Technology for Chitin Purification and Preparation of Chitin Materials Using Only Water
Mitsumasa Osada
14th International Conference of the European Chitin Society (EUCHIS 2023), 12 Sep. 2023

Prediction of the Liquid - Liquid Equilibria for Water + Organic Compounds Systems at High-Temperature Conditions Using Machine Learning
Mitsumasa Osada, Kotaro Tamura
19th European Meeting on Supercritical Fluids, 23 May 2023

Estimation of the Solubility of Biomass Derived Organic Compounds in High-temperature Water by Machine Learning
Mitsumasa Osada, Kotaro Tamura
9th Asian Conference on Biomass Science, 21 Jan. 2022

Japan Society for Bioscience, Biotechnology, and Agrochemistry

The Society of Chemical Engineers, Japan

The Society of Polymer Science, Japan

Catalysis Society of Japan

The Japan Institute of Energy

Japanese Society for Chitin and Chitosan

The Japanese Society of Applied Glycoscience