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  1. Original article

    Biotransformation of ferulic acid to protocatechuic acid by Corynebacterium glutamicum ATCC 21420 engineered to express vanillate O-demethylase

    Ferulic acid (4-hydroxy-3-methoxycinnamic acid, FA) is a lignin-derived phenolic compound abundant in plant biomass. The utilization of FA and its conversion to valuable compounds is desired. Protocatechuic ac...

    Naoko Okai, Takaya Masuda, Yasunobu Takeshima, Kosei Tanaka, Ken-ichi Yoshida, Masanori Miyamoto, Chiaki Ogino and Akihiko Kondo

    AMB Express 2017 7:130

    Published on: 21 June 2017

  2. Original article

    A molasses habitat-derived fungus Aspergillus tubingensis XG21 with high β-fructofuranosidase activity and its potential use for fructooligosaccharides production

    The industrial microorganisms used for fructooligosaccharides (FOS) synthesis are generally fermented with sucrose as carbon source to induce the production of β-fructofuranosidase (FFase) having transfructosy...

    Yijia Xie, Huanxia Zhou, Caixia Liu, Jing Zhang, Ning Li, Zhanli Zhao, Guoyong Sun and Yaohua Zhong

    AMB Express 2017 7:128

    Published on: 21 June 2017

  3. Original article

    Novel antimicrobial activities of a peptide derived from a Japanese soybean fermented food, Natto, against Streptococcus pneumoniae and Bacillus subtilis group strains

    We recently isolated a tumoricidal peptide from Natto, a Japanese traditional fermented food. In the present study, antimicrobial activity of the Natto peptide was examined. The peptide consisted of 45 amino a...

    Manabu Kitagawa, Tsukasa Shiraishi, Soh Yamamoto, Ryosuke Kutomi, Yasuo Ohkoshi, Toyotaka Sato, Hideki Wakui, Hideaki Itoh, Atsushi Miyamoto and Shin-ichi Yokota

    AMB Express 2017 7:127

    Published on: 20 June 2017

  4. Original article

    Media optimization for economic succinic acid production by Enterobacter sp. LU1.

    Enterobacter sp. LU1 could efficiently convert glycerol to succinic acid under anaerobic conditions after the addition of lactose. In this study, media constituents affecting both Enterob...

    Marcin Podleśny, Agnieszka Kubik-Komar, Jagoda Kucharska, Jakub Wyrostek, Piotr Jarocki and Zdzisław Targoński

    AMB Express 2017 7:126

    Published on: 19 June 2017

  5. Original article

    An enhanced vector-free allele exchange (VFAE) mutagenesis protocol for genome editing in a wide range of bacterial species

    Vector-free allele exchange (VFAE) is a newly developed protocol for genome editing in Pseudomonas species. Although several parameters have been determined to optimize the procedures for obtaining a stable and h...

    Ahmed E. Gomaa, Chen Zhang, Zhimin Yang, Liguo Shang, Shijie Jiang, Zhiping Deng, Yuhua Zhan, Wei Lu, Min Lin and Yongliang Yan

    AMB Express 2017 7:125

    Published on: 17 June 2017

  6. Original article

    H2O2 as a candidate bottleneck for MnP activity during cultivation of Agaricus bisporus in compost

    Degradation of lignin by fungi enhances availability of cellulose and hemicellulose in plant waste and thereby increases the amount of carbon source available to these microorganisms. The button mushroom Agaricus...

    Aurin M. Vos, Edita Jurak, Jordi F. Pelkmans, Koen Herman, Gill Pels, Johan J. Baars, Ed Hendrix, Mirjam A. Kabel, Luis G. Lugones and Han A. B. Wösten

    AMB Express 2017 7:124

    Published on: 17 June 2017

  7. Original article

    Lsp family proteins regulate antibiotic biosynthesis in Lysobacter enzymogenes OH11

    Ax21 family proteins have been shown to play regulatory roles in plant- and animal-pathogenic species in the bacterial family Xanthomonadaceae, but the protein have not been investigated previously in the non-...

    Ruping Wang, Huiyong Xu, Yangyang Zhao, Juan Zhang, Gary Y Yuen, Guoliang Qian and Fengquan Liu

    AMB Express 2017 7:123

    Published on: 13 June 2017

  8. Original article

    Toward a cell-free hydantoinase process: screening for expression optimization and one-step purification as well as immobilization of hydantoinase and carbamoylase

    The hydantoinase process is applied for the industrial synthesis of optically pure amino acids via whole cell biocatalysis, providing a simple and well-established method to obtain the catalyst. Nevertheless, ...

    Christin Slomka, Georg Paris Späth, Phillip Lemke, Marc Skoupi, Christof M. Niemeyer, Christoph Syldatk and Jens Rudat

    AMB Express 2017 7:122

    Published on: 9 June 2017

  9. Original article

    Investigation into the antimicrobial action and mechanism of a novel endogenous peptide β-casein 197 from human milk

    A novel endogenous peptide cleaved from 197–213 AA of β-casein, named β-casein 197, was identified by tandem mass spectrometry. β-casein 197 constituted a significant proportion of the peptide content in prete...

    Yanrong Fu, Chenbo Ji, Xiaohui Chen, Xianwei Cui, Xing Wang, Jie Feng, Yun Li, Rui Qin and Xirong Guo

    AMB Express 2017 7:119

    Published on: 6 June 2017

  10. Original article

    Expanding the range of polyhydroxyalkanoates synthesized by methanotrophic bacteria through the utilization of omega-hydroxyalkanoate co-substrates

    The first methanotrophic syntheses of polyhydroxyalkanoates (PHAs) that contain repeating units beyond 3-hydroxybutyrate and 3-hydroxyvalerate are reported. New PHAs synthesized by methanotrophs include poly(3...

    Jaewook Myung, James C. A. Flanagan, Robert M. Waymouth and Craig S. Criddle

    AMB Express 2017 7:118

    Published on: 5 June 2017

  11. Original article

    Assessment of changes in the content of anthocyanins, phenolic acids, and antioxidant property of Saccharomyces cerevisiae mediated fermented black rice bran

    Studies on phytochemical properties and bioactivities of rice bran revealed the wealth of natural complex antioxidant compounds. The composition and the properties of the rice bran get altered after fermentati...

    Chaiyavat Chaiyasut, Noppawat Pengkumsri, Sasithorn Sirilun, Sartjin Peerajan, Suchanat Khongtan and Bhagavathi Sundaram Sivamaruthi

    AMB Express 2017 7:114

    Published on: 5 June 2017

  12. Original article

    Evaluation of brewers’ spent grain as a novel media for yeast growth

    Brewers’ spent grain (BSG) is a by-product generated from the beer manufacturing industry, which is extremely rich in protein and fiber. Here we use low cost BSG as the raw material for the production of a nov...

    Sachindra T. Cooray, Jaslyn J. L. Lee and Wei Ning Chen

    AMB Express 2017 7:117

    Published on: 5 June 2017

  13. Original article

    The impact of DO and salinity on microbial community in poly(butylene succinate) denitrification reactors for recirculating aquaculture system wastewater treatment

    The interactions between environmental factors and bacterial community shift in solid-phase denitrification are crucial for optimum operation of a reactor and to achieve maximum treatment efficiency. In this s...

    Ya-Le Deng, Yun-Jie Ruan, Song-Ming Zhu, Xi-Shan Guo, Zhi-Ying Han, Zhang-Ying Ye, Gang Liu and Ming-Ming Shi

    AMB Express 2017 7:113

    Published on: 2 June 2017

  14. Original article

    A novel constructed SPT15 mutagenesis library of Saccharomyces cerevisiae by using gTME technique for enhanced ethanol production

    During the last few years, the global transcription machinery engineering (gTME) technique has gained more attention as an effective approach for the construction of novel mutants. Genetic strategies (molecula...

    Ashraf A. M. M. El-Rotail, Liang Zhang, Youran Li, Shuang Ping Liu and Gui Yang Shi

    AMB Express 2017 7:111

    Published on: 2 June 2017

  15. Original article

    A novel anti-CD22 scFv–apoptin fusion protein induces apoptosis in malignant B-cells

    CD22 marker is a highly internalizing antigen which is located on the surface of B-cells and is being used as a promising target for treatment of B cell malignancies. Monoclonal antibodies targeting CD22 have ...

    Solmaz Agha Amiri, Soraya Shahhosseini, Najmeh Zarei, Dorsa Khorasanizadeh, Elahe Aminollahi, Faegheh Rezaie, Mehryar Zargari, Mohammad Azizi and Vahid Khalaj

    AMB Express 2017 7:112

    Published on: 2 June 2017

  16. Original article

    Variants of lipopeptides and glycolipids produced by Bacillus amyloliquefaciens and Pseudomonas aeruginosa cultured in different carbon substrates

    The quantitative and qualitative effect of water immiscible and miscible carbon-rich substrates on the production of biosurfactants, surfactin and rhamnolipids, by Bacillus amyloliquefaciens ST34 and Pseudomonas ...

    Thando Ndlovu, Marina Rautenbach, Sehaam Khan and Wesaal Khan

    AMB Express 2017 7:109

    Published on: 31 May 2017

  17. Original article

    Characterisation and antimicrobial activity of biosurfactant extracts produced by Bacillus amyloliquefaciens and Pseudomonas aeruginosa isolated from a wastewater treatment plant

    Biosurfactants are unique secondary metabolites, synthesised non-ribosomally by certain bacteria, fungi and yeast, with their most promising applications as antimicrobial agents and surfactants in the medical ...

    Thando Ndlovu, Marina Rautenbach, Johann Arnold Vosloo, Sehaam Khan and Wesaal Khan

    AMB Express 2017 7:108

    Published on: 31 May 2017

  18. Original article

    Production of a potential liquid plant bio-stimulant by immobilized Piriformospora indica in repeated-batch fermentation process

    Piriformospora indica, a mycorrhizal-like fungus able to establish associations with roots of a wide range of plants, supporting plant nutrition and increasing plant resistance and tolera...

    Nikolay Vassilev, Bettina Eichler-Löbermann, Elena Flor-Peregrin, Vanessa Martos, Antonia Reyes and Maria Vassileva

    AMB Express 2017 7:106

    Published on: 25 May 2017

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