Article
Microbiology
Yangxuan Wen, Jiyu Qiang, Guixu Zhou, Xiaobo Zhang, Lei Wang, Yawei Shi
Summary: Bacillus halotolerans DS5, a halophilic microbe, produced a new alkaline protease (prot DS5) that exhibited stable enzyme activity and compatibility with various industrial applications.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Chemistry, Physical
Soni Tiwari, Ranjan Singh, Janardan Yadav, Rajeeva Gaur, Anurag Singh, Jay Shankar Yadav, Prabhash Kumar Pandey, Santosh Kumar Yadav, Jaya Prajapati, Pukhrambam Helena, Jayant Dewangan, Farrukh Jamal
Summary: In this study, an alkali-thermo-tolerant xylanase from Bacillus paramycoides that is tolerant to organic solvents was successfully produced. The enzyme showed improved activity and stability in the presence of certain organic solvents. This enzyme has potential applications in biomass conversion, fuel production, and other industrial processes, as well as in bioethanol production, alcoholic beverage amplification, and the fermenting industry.
Article
Biotechnology & Applied Microbiology
Mahmoud H. Hendy, Amr H. Hashem, Waleed B. Sulieman, Mahmoud H. Sultan, Mohamed Abdelraof
Summary: L-methionine gamma-lyase (MGL) was purified from A. fumigatus using heat treatment and gel filtration, resulting in 3.04-fold purification and 73.9% enzymatic recovery. The purified MGL showed a molecular mass of approximately 46 KDa. It exhibited maximum activity at pH 7 and stability within the pH range of 5.0-7.5. The enzyme had the highest catalytic activity at 30-40°C and remained stable up to 40°C. It was significantly inhibited by several metal ions and chemical reagents. MGL demonstrated anticancer activity against Hep-G2 and HCT116 cell lines at low concentrations. Overall, A. fumigatus MGL possesses favorable catalytic properties and potential for enzymotherapy.
MICROBIAL CELL FACTORIES
(2023)
Article
Biotechnology & Applied Microbiology
Uroosa Ejaz, Syed Faraz Moin, Muhammad Sohail, Gaber A. M. Mersal, Mohamed M. Ibrahim, Salah M. El-Bahy
Summary: This study aimed to characterize the cellulase obtained from a thermophilic bacterium, Neobacillus sedimentimangrovi UE25. The cellulase showed maximum activity at pH 7 and temperature 60 degrees C, and remained active in the presence of salts and detergents. The purified cellulase exhibited high specific activity and stability, with potential applications in the industrial sector.
ENZYME AND MICROBIAL TECHNOLOGY
(2023)
Article
Food Science & Technology
Lei Pan, Lin Wang, Fan Zhang, Yi Zhang, Baodong Zheng
Summary: Polysaccharide fractions were extracted from Dictyophora indusiata, and their structure and bifidogenic activity were investigated. It was found that DIP0 promoted the growth of Bifidobacterium longum and its metabolic synthesis of acetic acid during fermentation.
Article
Biotechnology & Applied Microbiology
Kai Melvin Schakowski, Christian Elm, Juergen Linders, Michael Kirsch
Summary: This work presents a method for encapsulating enzymes with albumin as wall material to prevent oxygen toxicity. The encapsulated catalase showed enzymatic activity and demonstrated potential for reducing cellular damage induced by hydrogen peroxide.
ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Physical
Nene Takio, Meera Yadav, Mridusmita Barman, Hardeo Singh Yadav
Summary: In this study, a catalase from Sechium edule (squash) was purified and characterized, including its purity and kinetic properties, as well as the study on immobilized catalase. The immobilized catalase showed improved thermostability compared to the free enzyme.
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
(2021)
Article
Biochemistry & Molecular Biology
Mingzhu Du, Shuanghong Yang, Tong Jiang, Tingting Liang, Ying Li, Shuzhen Cai, Qingping Wu, Jumei Zhang, Wei Chen, Xinqiang Xie
Summary: This study cloned and expressed two novel β-galactosidases derived from Bifidobacterium, providing a new resource for efficient lactose hydrolysis and lactose intolerance alleviation. One of the enzymes showed significantly higher activity than a commercial enzyme under optimal conditions and has potential application in the food industry.
Article
Chemistry, Multidisciplinary
Yun-peng Jiang, Jun-li Cai, Jian-jun Pei, Qi Li, Lin-guo Zhao
Summary: The thermostable and organic solvent-tolerant bacterial laccase from Bacillus pumilus ARA has potential in decolorizing various industrial synthetic dyes. With optimal temperature and pH conditions, the enzyme activity significantly increased, showing promising applications in the future.
Article
Biotechnology & Applied Microbiology
Jieteng Chen, Jieni Wang, Hao Zheng
Summary: Three novel strains of Bifidobacterium were isolated from the honey bee gut, and they were grouped into four phylogenetic clusters. These strains showed differences in metabolic capacity for carbohydrates, growth temperature, and pH range. The study proposed three new species based on phenotypic and chemotaxonomic characterizations.
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2021)
Article
Microbiology
Yanbo Hu, Liyuan Zhai, Huili Hong, Zenghui Shi, Jun Zhao, Duo Liu
Summary: Three beta-glucosidases from Bifidobacterium adolescentis ATCC15703 were overexpressed in Escherichia coli and purified. The recombinant enzymes showed different substrate specificities and could be used as biocatalytic tools for transforming ginsenosides and preparing active glycosides and aglycone.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Microbiology
Pedro A. A. Reyes-Castillo, Raquel Gonzalez-Vazquez, Edgar Torres-Maravilla, Jessica I. I. Bautista-Hernandez, Eduardo Zuniga-Leon, Martha Leyte-Lugo, Leovigildo Mateos-Sanchez, Felipe Mendoza-Perez, Maria Angelica Gutierrez-Nava, Diana Reyes-Pavon, Alejandro Azaola-Espinosa, Lino Mayorga-Reyes
Summary: This study aims to characterize the probiotic potential of B. longum LBUX23 isolated from neonates' feces based on its biochemical and genomic functionality. The results suggest that B. longum LBUX23 has the potential for antioxidant and anti-cholesterol effects, making it a candidate for further in vivo testing.
Article
Agriculture, Multidisciplinary
Xiaolong Ji, Yanqiu Cheng, Jingyuan Tian, Siqi Zhang, Yongshuai Jing, Miaomiao Shi
Summary: The study investigated the special structure of a homogeneous acidic polysaccharide (PZMP4) produced from Ziziphus Jujuba cv. Muzao fruit. The results revealed a netted structure with molecular aggregates of PZMP4, consisting of various components that may indicate distinct bioactivities.
CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE
(2021)
Article
Plant Sciences
Yeon-Ok Kim, Hyun-Sung Kim, Hyun-Gyu Lim, Ha-Young Jang, Eunsuk Kim, Sung-Ju Ahn
Summary: The rare-cold-inducible 2 (RCI2) gene CsRCI2D plays a positive role in Camelina salt stress response, promoting seed germination and seedling growth by maintaining ion balance and modulating the expression of antioxidant-related genes. Overexpression of CsRCI2D in Camelina reduces Na+ accumulation, increases K+ accumulation, decreases H2O2 and malondialdehyde levels under salt stress, and upregulates antioxidant gene expression under normal growth conditions.
JOURNAL OF PLANT BIOLOGY
(2022)
Article
Microbiology
Raquel Gonzalez-Vazquez, Eduardo Zuniga-Leon, Edgar Torres-Maravilla, Martha Leyte-Lugo, Felipe Mendoza-Perez, Natalia C. Hernandez-Delgado, Ricardo Perez-Pasten-Borja, Alejandro Azaola-Espinosa, Lino Mayorga-Reyes
Summary: This study conducted a biochemical and genomic characterization of Bifidobacterium pseudocatenulatum JCLA3, revealing its various functions including resistance, antioxidant activity, and bile salt deconjugation. These findings are significant for further research on the biotechnological applications of this strain.
Article
Biochemistry & Molecular Biology
Junichi Satoh, Hiroyuki Koshino, Kouta Sekino, Shinsaku Ito, Ryo Katsuta, Kouji Takeda, Etsuro Yoshimura, Fumie Shinmachi, Shinji Kawasaki, Youichi Niimura, Tomoo Nukada
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
(2016)
Article
Biochemistry & Molecular Biology
Toshiaki Arai, Shinya Kimata, Daichi Mochizuki, Keita Hara, Tamotsu Zako, Masafumi Odaka, Masafumi Yohda, Fumio Arisaka, Shuji Kanamaru, Takashi Matsumoto, Shunsuke Yajima, Junichi Sato, Shinji Kawasaki, Youichi Niimura
Article
Biotechnology & Applied Microbiology
Hotaka Atarashi, Shinji Kawasaki, Yoichi Niimura, Naoto Tanaka, Sanae Okada, Yuh Shiwa, Akihito Endo, Junichi Nakagawa
JOURNAL OF GENERAL AND APPLIED MICROBIOLOGY
(2016)
Article
Microbiology
Makoto Chiba, Takanori Itabashi, Koujiro Hirai, Mitsuo Sakamoto, Moriya Ohkuma, Taichiro Ishige, Shinji Kawasaki
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2018)
Article
Multidisciplinary Sciences
Kunifusa Tanaka, Takumi Satoh, Jun Kitahara, Saori Uno, Izumi Nomura, Yasunobu Kano, Tohru Suzuki, Youichi Niimura, Shinji Kawasaki
SCIENTIFIC REPORTS
(2018)
Article
Biochemistry & Molecular Biology
Shinya Kimata, Daichi Mochizuki, Junichi Satoh, Ken Kitano, Yu Kanesaki, Kouji Takeda, Akira Abe, Shinji Kawasaki, Youichi Niimura
Article
Plant Sciences
Shinji Kawasaki, Keisuke Mizuguchi, Masaru Sato, Tetsuya Kono, Hirofumi Shimizu
PLANT AND CELL PHYSIOLOGY
(2013)
Article
Microbiology
Takumi Satoh, Mitsunori Todoroki, Kazuya Kobayashi, Youichi Niimura, Shinji Kawasaki
Article
Marine & Freshwater Biology
Shinji Kawasaki, Risako Yoshida, Kiichi Ohkoshi, Hiroki Toyoshima
PHYCOLOGICAL RESEARCH
(2020)
Article
Biotechnology & Applied Microbiology
Hiroki Toyoshima, Shinichi Takaichi, Shinji Kawasaki
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2020)
Article
Biology
Shinji Kawasaki, Keita Yamazaki, Tohya Nishikata, Taichiro Ishige, Hiroki Toyoshima, Ami Miyata
COMMUNICATIONS BIOLOGY
(2020)
Article
Chemistry, Medicinal
Hiroki Toyoshima, Ami Miyata, Risako Yoshida, Taichiro Ishige, Shinichi Takaichi, Shinji Kawasaki
Summary: Photooxidative stress-inducible water-soluble astaxanthin-binding proteins, named AstaP, were identified in two Scenedesmaceae strains, offering valuable water-soluble astaxanthin. Interestingly, proteins produced by some Scenedesmaceae strains were found to bind astaxanthin.
Article
Biotechnology & Applied Microbiology
Shinji Kawasaki, Tamaki Mitsui, Kohei Omori, Takumi Tsuboya, Adam Bader, Hiroki Toyoshima, Shinichi Takaichi
Summary: In this study, a group of water-soluble proteins called AstaPs were found to bind to astaxanthin selectively. These proteins can act as natural solubilizers for astaxanthin as well as other carotenoids and carotenoid derivatives. The results provide insight into the properties of selective binding of astaxanthin by AstaPs.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Microbiology
Shinji Kawasaki, Kaori Ozawa, Tatsunori Mori, Arisa Yamamoto, Midoriko Ito, Moriya Ohkuma, Mitsuo Sakamoto, Minenosuke Matsutani
Summary: This study analyzed the gut microbiomes of three Xylocopa species in Japan and found distinctive core gut microbiomes consisting of primarily lactic acid bacteria (LAB). The LAB species isolated from these bees were phylogenetically distant from known species and lacked genes for synthesizing the essential coenzyme NAD. The findings suggest the evolution and retention of Xylocopa-restricted bacteria through vertical transmission of microbes.
MICROBIOLOGY SPECTRUM
(2023)