BEHAVIOUR OF NEW PULLULAN DERIVATIVE SOLUTIONS WITH BIOTECHNOLOGICAL POTENTIAL

2019 ◽  
Vol 18 (2) ◽  
pp. 301-310
Author(s):  
Anca Giorgiana Grigoras ◽  
Marieta Constantin
Keyword(s):  
Biotechnological Potential

Assessment of Biotechnological Potential of Cyanobacteria and Microalgae Strains from IPPAS Culture Collection

2019 ◽  
pp. 12-29
Author(s):  
R.A. Sidorov ◽  
A.Yu. Starikov ◽  
A.S. Voronkov ◽  
A.S. Medvedeva ◽  
Z.V. Krivova ◽  
...  
Keyword(s):  
Biochemical Composition ◽  
Wide Spectrum ◽  
Food Additives ◽  
Mature Spore ◽  
High Growth ◽  
Biomass Productivity ◽  
Culture Collection ◽  
Growth Characteristics ◽  
Russian Science ◽  
Biotechnological Potential

As a result of screening of spore-forming bacteria, a B-13186 strain with a wide spectrum of antagonistic activity identified as Brevibacillus laterosporus by the analysis of sequences of variable sites of 16S rRNA was selected. Morphological, cultural and biochemical characteristics of the strain were studied. A distinctive feature of the strain is the presence of a canoe-like inclusion formed in sporangia and attached to the mature spore, as well as the ability to synthesize round-shaped crystalline inclusions. The strain was shown to be active against various species of gram-positive bacteria including A search for strains capable of simultaneously producing high amounts of several biologically valuable compounds and/or having high biomass productivity has been carried out. The growth characteristics and biochemical composition of 12 microalgae and cyanobacteria strains from the IPPAS Collection in the exponential and stationary growth phases were studied. All the strains had high growth rates (doubling time 6-22 h). The strains of Cyanobacterium sp. IPPAS B-1200, Chlorella sp. IPPAS C-1210, Nannochloris sp. IPPAS C-1509, Cyanidium caldarium IPPAS P-510 and Vischeria sp. IPPAS H-242 demonstrated the highest biotechnological potential and can be used for the production of various types of biofuel, pigments, feed and food additives, including those with high content of eicosapentaenoic (20:5 Δ5,8,11,14,17) acid content. microalgae, cyanobacteria, biochemical composition, fatty acids, valuable metabolites, growth characteristics This work was supported by a grant from the Russian Science Foundation [no. 14-14-00904]

Antimicrobial Peptides - Small but Mighty Weapons for Plants to Fight Phytopathogens

2019 ◽  
Vol 26 (10) ◽  
pp. 720-742 ◽  
Author(s):  
Kaushik Das ◽  
Karabi Datta ◽  
Subhasis Karmakar ◽  
Swapan K. Datta
Keyword(s):  
Antimicrobial Peptides ◽  
Durable Resistance ◽  
Defense Responses ◽  
Defense System ◽  
Biotechnological Potential ◽  
Functional Aspects ◽  
Low Concentrations ◽  
Wide Range ◽  
Vital Component ◽  
Pathogen Entry

Antimicrobial Peptides (AMPs) have diverse structures, varied modes of actions, and can inhibit the growth of a wide range of pathogens at low concentrations. Plants are constantly under attack by a wide range of phytopathogens causing massive yield losses worldwide. To combat these pathogens, nature has armed plants with a battery of defense responses including Antimicrobial Peptides (AMPs). These peptides form a vital component of the two-tier plant defense system. They are constitutively expressed as part of the pre-existing first line of defense against pathogen entry. When a pathogen overcomes this barrier, it faces the inducible defense system, which responds to specific molecular or effector patterns by launching an arsenal of defense responses including the production of AMPs. This review emphasizes the structural and functional aspects of different plant-derived AMPs, their homology with AMPs from other organisms, and how their biotechnological potential could generate durable resistance in a wide range of crops against different classes of phytopathogens in an environmentally friendly way without phenotypic cost.

A review on biotechnological potential of multifarious enzymes in bread making

2020 ◽  
Vol 99 ◽  
pp. 290-306
Author(s):  
Seema Dahiya ◽  
Bijender Kumar Bajaj ◽  
Anil Kumar ◽  
Santosh Kumar Tiwari ◽  
Bijender Singh
Keyword(s):  
Bread Making ◽  
Biotechnological Potential

scholarly journals Colour Me Blue: The History and the Biotechnological Potential of Pyocyanin

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 927
Author(s):  
Thiago Gonçalves ◽  
Ulrich Vasconcelos
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibiotic Therapy ◽  
Electric Current ◽  
Antimicrobial Therapy ◽  
Blue Colour ◽  
Current Generation ◽  
Biotechnological Potential ◽  
Avant Garde ◽  
New Horizons ◽  
The Subject

Pyocyanin was the first natural phenazine described. The molecule is synthesized by about 95% of the strains of Pseudomonas aeruginosa. From discovery up to now, pyocyanin has been characterised by a very rich and avant-garde history, which includes its use in antimicrobial therapy, even before the discovery of penicillin opened the era of antibiotic therapy, as well as its use in electric current generation. Exhibiting an exuberant blue colour and being easy to obtain, this pigment is the subject of the present review, aiming to narrate its history as well as to unveil its mechanisms and suggest new horizons for applications in different areas of engineering, biology and biotechnology.

Novel 2D MBenes—Synthesis, Structure, and Biotechnological Potential

2021 ◽  
pp. 2103048
Author(s):  
Michał Jakubczak ◽  
Aleksandra Szuplewska ◽  
Anita Rozmysłowska‐Wojciechowska ◽  
Andreas Rosenkranz ◽  
Agnieszka Maria Jastrzębska
Keyword(s):  
Biotechnological Potential

scholarly journals Engineering motile aqueous phase-separated droplets via liposome stabilisation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Shaobin Zhang ◽  
Claudia Contini ◽  
James W. Hindley ◽  
Guido Bolognesi ◽  
Yuval Elani ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Marangoni Effect ◽  
Living Systems ◽  
Biological Processes ◽  
Biological Applications ◽  
Emulsion System ◽  
Biotechnological Potential ◽  
New Directions ◽  
Directional Motion ◽  
The Stability

AbstractThere are increasing efforts to engineer functional compartments that mimic cellular behaviours from the bottom-up. One behaviour that is receiving particular attention is motility, due to its biotechnological potential and ubiquity in living systems. Many existing platforms make use of the Marangoni effect to achieve motion in water/oil (w/o) droplet systems. However, most of these systems are unsuitable for biological applications due to biocompatibility issues caused by the presence of oil phases. Here we report a biocompatible all aqueous (w/w) PEG/dextran Pickering-like emulsion system consisting of liposome-stabilised cell-sized droplets, where the stability can be easily tuned by adjusting liposome composition and concentration. We demonstrate that the compartments are capable of negative chemotaxis: these droplets can respond to a PEG/dextran polymer gradient through directional motion down to the gradient. The biocompatibility, motility and partitioning abilities of this droplet system offers new directions to pursue research in motion-related biological processes.

scholarly journals Sustaining Rice Production through Biofertilization with N2-Fixing Cyanobacteria

2021 ◽  
Vol 11 (10) ◽  
pp. 4628
Author(s):  
Macarena Iniesta-Pallarés ◽  
Consolación Álvarez ◽  
Francisco M. Gordillo-Cantón ◽  
Carmen Ramírez-Moncayo ◽  
Pilar Alves-Martínez ◽  
...  
Keyword(s):  
Agricultural Practices ◽  
Vital Role ◽  
Rice Production ◽  
Point Of View ◽  
Paddy Fields ◽  
Nitrogen Fertilizers ◽  
Trophic Chain ◽  
Agricultural Practice ◽  
Biotechnological Potential

Current agricultural productivity depends on an exogenous nutrient supply to crops. This is of special relevance in cereal production, a fundamental part of the trophic chain that plays a vital role in the human diet. However, our agricultural practices entail highly detrimental side-effects from an environmental point of view. Long-term nitrogen fertilization in croplands results in degradation of soil, water, and air quality, producing eutrophication and subsequently contributing to global warming. In accordance with this, there is a biotechnological interest in using nitrogen-fixing microorganisms to enhance crop growth without adding chemically synthesized nitrogen fertilizers. This is particularly beneficial in paddy fields, where about 60% of the synthetic fertilizer that has been applied is dissolved in the water and washed away. In these agricultural systems, N2-fixing cyanobacteria show a promising biotechnological potential as biofertilizers, improving soil fertility while reducing the environmental impact of the agricultural practice. In the current study, Andalusian paddy fields have been explored to isolate N2-fixing cyanobacteria. These endogenous microorganisms have been subsequently re-introduced in a field trial in order to enhance rice production. Our results provide valuable insights regarding the use of an alternative natural source of nitrogen for rice production.

scholarly journals Carotenoids from Cyanobacteria: Biotechnological Potential and Optimization Strategies

Biomolecules ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 735
Author(s):  
Fernando Pagels ◽  
Vitor Vasconcelos ◽  
Ana Catarina Guedes
Keyword(s):  
Energy Dissipation ◽  
Industrial Production ◽  
Protein Complex ◽  
Biosynthetic Pathway ◽  
Environmentally Friendly ◽  
Potential Candidate ◽  
Biotechnological Potential ◽  
Photosynthetic Organisms ◽  
Orange Carotenoid Protein ◽  
Β Carotene

Carotenoids are tetraterpenoids molecules present in all photosynthetic organisms, responsible for better light-harvesting and energy dissipation in photosynthesis. In cyanobacteria, the biosynthetic pathway of carotenoids is well described, and apart from the more common compounds (e.g., β-carotene, zeaxanthin, and echinenone), specific carotenoids can also be found, such as myxoxanthophyll. Moreover, cyanobacteria have a protein complex called orange carotenoid protein (OCP) as a mechanism of photoprotection. Although cyanobacteria are not the organism of choice for the industrial production of carotenoids, the optimisation of their production and the evaluation of their bioactive capacity demonstrate that these organisms may indeed be a potential candidate for future pigment production in a more environmentally friendly and sustainable approach of biorefinery. Carotenoids-rich extracts are described as antioxidant, anti-inflammatory, and anti-tumoral agents and are proposed for feed and cosmetical industries. Thus, several strategies for the optimisation of a cyanobacteria-based bioprocess for the obtention of pigments were described. This review aims to give an overview of carotenoids from cyanobacteria not only in terms of their chemistry but also in terms of their biotechnological applicability and the advances and the challenges in the production of such compounds.

scholarly journals Enzymatic synthesis of novel fructosylated compounds by Ffase from Schwanniomyces occidentalis in green solvents

RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 24312-24319
Author(s):  
David Piedrabuena ◽  
Ángel Rumbero ◽  
Elísabet Pires ◽  
Alejandro Leal-Duaso ◽  
Concepción Civera ◽  
...  
Keyword(s):  
Enzymatic Synthesis ◽  
Green Solvents ◽  
Biotechnological Potential ◽  
Schwanniomyces Occidentalis ◽  
Good Acceptor

Glycerol, as a good acceptor for Ffase, produces novel fructosylated derivatives with biotechnological potential.

scholarly journals Phytoremediation of CYN, MC-LR and ANTX-a from Water by the Submerged Macrophyte Lemna trisulca

Cells ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 699
Author(s):  
Małgorzata Kucała ◽  
Michał Saładyga ◽  
Ariel Kaminski
Keyword(s):  
Electrical Conductivity ◽  
Chlorophyll A ◽  
Growth And Development ◽  
Cyanobacterial Blooms ◽  
Biotechnological Potential ◽  
Intracellular Pool ◽  
Ph Values ◽  
Bg11 Medium ◽  
Total Pool ◽  
Harmful Cyanobacterial Blooms

Cyanotoxins are harmful to aquatic and water-related organisms. In this study, Lemna trisulca was tested as a phytoremediation agent for three common cyanotoxins produced by bloom-forming cyanobacteria. Cocultivation of L. trisulca with Dolichospermum flos-aquae in BG11 medium caused a release of the intracellular pool of anatoxin-a into the medium and the adsorption of 92% of the toxin by the plant—after 14 days, the total amount of toxin decreased 3.17 times. Cocultivation with Raphidopsis raciborskii caused a 2.77-time reduction in the concentration of cylindrospermopsin (CYN) in comparison to the control (62% of the total pool of CYN was associated with the plant). The greatest toxin limitation was noted for cocultivation with Microcystis aeruginosa. After two weeks, the microcystin-LR (MC-LR) concentration decreased more than 310 times. The macrophyte also influenced the growth and development of cyanobacteria cells. Overall, 14 days of cocultivation reduced the biomass of D. flos-aquae, M. aeruginosa, and R. raciborskii by 8, 12, and 3 times, and chlorophyll a concentration in comparison to the control decreased by 17.5, 4.3, and 32.6 times, respectively. Additionally, the macrophyte stabilized the electrical conductivity (EC) and pH values of the water and affected the even uptake of cations and anions from the medium. The obtained results indicate the biotechnological potential of L. trisulca for limiting the development of harmful cyanobacterial blooms and their toxicity.

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