Nova Biotechnologica et Chimica Volume 17 Issue 2

Journal Article

Characterization and assessment of biosurfactant producing indigenous hydrocarbonoclastic bacteria: potential application in bioremediation

Bharali, Pranjal; Singh, Salam Pradeep; Bashir, Yasir; Dutta, Nipu; Konwar, Bolin Kumar;

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0011

AbstractPetroleum and hydrocarbons contamination can be remediated by physical, chemical or biological methods. Among these, in situ bioremediation is considered to be environmentally friendly because it restores the soil structure, requires less energy input and involves the notable removal...

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Journal Article

Antifouling activities of extracellular polymeric substances produced by marine bacteria associated with the gastropod (Babylonia sp.)

Viju, Nadarajan; Ezhilraj, Nagarajan; Shankar, Chellamnadar Vaikundavasagom Sunjaiy; Punitha, Stanislaus Mary Josephine; Satheesh, Sathianeson

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0012

AbstractBacteria associated with surfaces have been frequently cited as a potential source for the isolation of bioactive metabolites. In this study, bacteria associated with marine gastropod, Babylonia sp. were isolated and screened for antibacterial activity against biofilm-forming bacteria....

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Journal Article

Genetic variability in Acidithiobacillus spp. – a working horse of environmental biotechnologies

Pristas, Peter; Kiskova, Jana; Timkova, Ivana; Malinicova, Lenka; Luptakova, Alena;

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0013

AbstractThe genus Acidithiobacillus comprises 7 species of Gram-negative obligatory acidophilic chemolithotrophic bacteria that derive energy mainly from the oxidation of reduced sulphur compounds. Four of the species also catalyse the dissimilatory oxidation of ferrous iron while three (A....

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Journal Article

Determination of selected phenolic acid and majoritarian avenanthramides in different varieties of naked oats (Avena sativa L.) grown in Slovakia

Kulichová, Katarína; Maliarová, Mária; Sokol, Jozef; Lašáková, Katarína; Havrlentová, Michaela

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0014

AbstractOats are important cereals. Oats are a good source of protein and lipids, polyphenolics, phenolic acids, flavonoids and avenanthramides. Avenanthramides is phenolic group, which is unique in oats and have antioxidant activity, anti-inflammatory, anti-atherogenic and anti-proliferative...

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Journal Article

Bioanalytical HPLC method development for simultaneous determination of valsartan and co-administered clopidogrel bisulfate and fenofibrate in stroke prevention in raw materials, spiked human plasma and tablets

Ragab, Gamal H.; Bahgat, Eman A.

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0015

AbstractThis study reports about simple, robust and reproducible method for simultaneous bioanalytical determination of Valsartan (VAL) and co-administered Clopidogrel bisulfate (CGB) and Fenofibrate (FEN) in raw materials, spiked human plasma and tablets using isocratic RP-HPLC method. The...

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Journal Article

Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivity

Ksouri, Dalila; Khireddine, Hafit; Aksas, Ali; Valente, Tiago; Bir, Fatima;

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0016

AbstractIn this work ternary bioactive glasses with the molar composition 63 % SiO2, 28 % CaO, and 9 % P2O5 have been prepared via sol-gel processing route leading to xerogel or aerogel glasses, depending on the drying conditions. Two types of drying methods were used: atmospheric pressure drying...

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Journal Article

Direct yellow degradation by combined Fenton-enzymatic process

Boucherit, Nabila; Abouseoud, Mahmoud; Adour, Lydia

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0017

AbstractThe removal of direct yellow 106 (DY106, C.I.40300) by a combined process of Fenton oxidation and enzymatic degradation in a sequential or mixed batch reactor is discussed. Experiments were first conducted with the enzymatic and chemical oxidation processes separately in order to...

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Journal Article

Azonaphthalene dyes decolorization and detoxification by laccase from Trametes versicolor

Legerská, Barbora; Chmelová, Daniela; Ondrejovič, Miroslav

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0018

AbstractThe aim of the present study was to investigate the dye decolorization ability of laccase from Trametes versicolor. Five azonaphthalene dyes (Acid Violet 7, Acid Red 1, Allura Red AC, Orange G and Sunset Yellow FCF) were used to evaluate dye decolorization. Laccase from T. versicolor is...

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Journal Article

Treatment of produced water by induced air flotation: effect of both TWEEN 80 and ethanol concentrations on the recovery of PAHs

Chebbi, Salima; Allouche, Atmane; Schwarz, Marian; Rabhi, Souhila; Belkacemi, Hayet;

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0019

AbstractThe present study investigates the application of induced air flotation (IAF) technique on PAHs (PAHs) removal performance from a real oilfield produced water of a separator cell. The quantification of total PAHs (PAHtot) was done using ultraviolet-visible spectrometry (UV-Vis) according...

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Journal Article

Synthesis and structure-physicochemical properties relationship of thiophene-substituted bis(5,4-d)thiazoles

Tokárová, Zita; Biathová, Anna

2018 Nova Biotechnologica et Chimica

doi:10.2478/nbec-2018-0020

AbstractSubstituted thiophene-2-carbaldehydes 1a-dwere utilized in the synthesis of symmetrically substituted thiazolo[5,4-d]thiazoles 3a-d. Bis(5,4-d)thiazoles with thiophene core at the termini are the most employed in the chemistry of materials but exhibit insufficient solubility in majority...

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Nova Biotechnologica et Chimica Volume 17 Issue 2

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Nova Biotechnologica et Chimica Volume 17 Issue 2

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