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  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. Original article

    PGPR strain Paenibacillus polymyxa SQR-21 potentially benefits watermelon growth by re-shaping root protein expression

    Paenibacillus polymyxa (SQR-21) is not only a plant growth-promoting rhizobacteria, but also an effective biocontrol agent against Fusarium wilt disease of watermelon. For the better unde...

    Yaoyao E, Jun Yuan, Fang Yang, Lei Wang, Jinghua Ma, Jing Li, Xiaowei Pu, Waseem Raza, Qiwei Huang and Qirong Shen

    AMB Express 2017 7:104

    Published on: 25 May 2017

  11. Original article

    Mannan endo-1,4-β-mannosidase from Kitasatospora sp. isolated in Indonesia and its potential for production of mannooligosaccharides from mannan polymers

    Mannan endo-1,4-β-mannosidase (commonly known as β-mannanase) catalyzes a random cleavage of the β-d-1,4-mannopyranosyl linkage in mannan polymers. The enzyme has been utilized in biofuel production from lignocel...

    Nanik Rahmani, Norimasa Kashiwagi, JaeMin Lee, Satoko Niimi-Nakamura, Hana Matsumoto, Prihardi Kahar, Puspita Lisdiyanti, Yopi, Bambang Prasetya, Chiaki Ogino and Akihiko Kondo

    AMB Express 2017 7:100

    Published on: 19 May 2017

  12. Original article

    Application of response surface methodology for optimization of medium components for the production of secondary metabolites by Streptomyces diastatochromogenes KX852460

    A bioactive strain Streptomyces diastatochromogenes KX852460 was selected for the production of secondary metabolites to control the target spot disease on tobacco leaves, caused by the Rhizoctonia solani AG-3. P...

    Taswar Ahsan, Jianguang Chen, Yuanhua Wu and Muhammad Irfan

    AMB Express 2017 7:96

    Published on: 15 May 2017

  13. Original article

    Improving the temperature characteristics and catalytic efficiency of a mesophilic xylanase from Aspergillus oryzae, AoXyn11A, by iterative mutagenesis based on in silico design

    To improve the temperature characteristics and catalytic efficiency of a glycoside hydrolase family (GHF) 11 xylanase from Aspergillus oryzae (AoXyn11A), its variants were predicted based on in silico design. Fir...

    Xue-Qing Li, Qin Wu, Die Hu, Rui Wang, Yan Liu, Min-Chen Wu and Jian-Fang Li

    AMB Express 2017 7:97

    Published on: 15 May 2017

  14. Original article

    Autolysis of Pichia pastoris induced by cold

    The production of recombinant biopharmaceutical proteins is a multi-billion dollar market. Protein recovery represents a major part of the production costs. Pichia pastoris is one of the microbial systems most us...

    Yaneth Bartolo-Aguilar, Luc Dendooven, Cipriano Chávez-Cabrera, Luis B. Flores-Cotera, María E. Hidalgo-Lara, Lourdes Villa-Tanaca and Rodolfo Marsch

    AMB Express 2017 7:95

    Published on: 12 May 2017

  15. Original article

    Systematic analysis of the lysine acetylome reveals diverse functions of lysine acetylation in the oleaginous yeast Yarrowia lipolytica

    Lysine acetylation of proteins, a major post-translational modification, plays a critical regulatory role in almost every aspects in both eukaryotes and prokaryotes. Yarrowia lipolytica, an oleaginous yeast, is c...

    Guangyuan Wang, Lizhong Guo, Wenxing Liang, Zhenming Chi and Lin Liu

    AMB Express 2017 7:94

    Published on: 12 May 2017

  16. Original article

    Medium-chain-length polyhydroxyalkanoates synthesis by Pseudomonas putida KT2440 relA/spoT mutant: bioprocess characterization and transcriptome analysis

    Pseudomonas putida KT2440 is a model bacteria used commonly for medium-chain-length polyhydroxyalkanoates (mcl-PHAs) production using various substrates. However, despite many studies con...

    Justyna Mozejko-Ciesielska, Dorota Dabrowska, Agnieszka Szalewska-Palasz and Slawomir Ciesielski

    AMB Express 2017 7:92

    Published on: 12 May 2017

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