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Nada Oršolić

References 1. Chandrasekara A, Shahidi F. Bioactivities and antiradical properties of millet grains and hulls. J Agric Food Chem 2011;59:9563-71. doi: 10.1021/jf201849d 2. Kamakura M. Royalactin induces queen differentiation in honeybees. Nature 2011;473:478-83. doi: 10.1038/ nature10093 3. Vecchi MA, Sabatini AG, Grazia L, Tini V, Zambonelli C. Il contenuto in vitamine come possibile elemento di caratterizzazione della gelatina reale [The content in vitamins as a possible element of characterization of

Open access

Ines Ouerghemmi, Mouna Ben Farhat, Hela Harbeoui, Majdi Hammami, Ghaith Hamdaoui, Brahim Marzouk and Moufida Saidane Tounsi

Summary

Introduction: Solanum sodomaeum L. has been observed to have several medicinal properties, in particular, in the treatment of several types of human skin cancer.

Objective: The influence of the maturation stage of S. sodomaeum fruits on the total lipid contents, fatty acid profiles, essential oil yields and compositions, as well as the antibacterial and antioxidant activities of the essential oils, was investigated.

Methods: The fatty acid and essential oil constituents were identified using gas chromatography (GC) and GC–mass spectrometry (GC–MS). The antioxidant properties of essential oil and vegetal oil were assessed using 1,1-diphenyl-2-picryl-hydrazyl (DPPH) scavenging and reducing power assays. The antibacterial activity of essential oil was tested using the disc diffusion assay for resistance in human pathogenic bacteria.

Results: Mature fruits showed higher total lipid content (17%) and were characterised by polyunsaturated fatty acids (53.87%), represented mainly by linoleic acid (53.11%). Similar yields of essential oils were detected for immature (0.43%) and mature (0.45%) fruits. Tetrahydronaphthalene (41.79%) was detected as the major essential oil component at the immature stage versus dihydrocoumarin pentane (18.27%), hexadecanoic acid (17.43%) and 2-undecanone (13.20%) in mature fruits. The DPPH test showed that essential oils had better antioxidant properties; however, the vegetal oils showed better performance in the reducing power assay. Moreover, the essential oil of S. sodomaeum mature fruits was active against bacterial strains.

Conclusions: S. sodomaeum fruits could be a valuable source of natural antioxidants and antibacterial agents.

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Maria-Viorica Ciocilteu, Andreea Gabriela Mocanu, Adriana Mocanu, Catalin Ducu, Oana Elena Nicolaescu, Valentin Costel Manda, Adina Turcu-Stiolica, Claudiu Nicolicescu, Razvan Melinte, Maria Balasoiu, Octavian Croitoru and Johny Neamtu

, Coord. Chem. Rev. 33 (1980) 227–250; http://doi.org/10.1016/S0010-8545(00)80455-5 24. J. Barbosa, R. Berge´s, I. Toro and V. Sanz-Nebot, Protonation equilibria of quinolone antibacterials in acetonitrile-water mobile phases used in LC, Talanta 44 (1997) 1271–1283; http://doi.org/10.1016/S0039-9140(96)02188-1 25. S. G. Kumar, R. Govindana and E. K. Girija, In situ synthesis, characterization and in vitro studies of ciprofloxacin loaded hydroxyapatite nanoparticles for the treatment of osteomyelitis, J. Mater. Chem. B 2 (2014) 5052–5060; http

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Sefa Durmuş, Aslıhan Dalmaz, Görkem Dülger and Duygu Bircan Kadıoğlu

Abstract

Thio-Schiff bases are becoming increasingly widespread in various branches such as the preparation of certain medicines, cosmetic products, and polymer production. In particular, the presence of antibacterial, antifungal, antiviral, antitumor and antimalarial properties of Schiff bases containing sulfur in the structure has made these compounds attractive in different disciplines. In this study, different derivatives of dimeric disulfide-Schiff bases have been synthesized. The antibacterial and antifungal activities of the synthesized these compounds were investigated in vitro against some human pathogens (Acinetobacter baumannii, Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus and Candida albicans, C. tropicalis, C. guilliermondii and C. glabrata). Test microorganisms were isolated from the patients appyling to Medical Faculty Hospital of Duzce University were used. Diffusion method was used to determine the antimicrobial activities of the compounds.standard antibacterial (Cefotaxime, Amoxicillin/clavulanicacid) and antifungal (Posaconazole) antibiotics were used as the control group and the results were compared. The result indicated that antimicrobial activity of Disulphide-Schiff Base Derivatives exhibited less activity against bacteria as compared to AMC30 (Amoxicillin/clavulanicacid), but highly effective against bacteria as compared to CTX30 (Cefotaxime). In addition, the compounds exhibited less activity against yeast.

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Joanna Smolibowska, Marcin Szymański and Arkadiusz Szymański

of gastric cancer intervention. Carbohyd Polym 2011; 85:369-375. doi: http://dx.doi.org/10.1016/j.carbpol.2011.02.035 5. Kim SH, Jakhar R, Kang S.C. Apoptotic properties of polysaccharide isolated from fruiting bodies of medicinal mushroom Fomes fomentarius in human lung carcinoma cell line. Saudi J Biol Sci 2015; 22(4):484-90. doi: http://dx.doi.org/10.1016/j.sjbs.2014.11.022 6. Grienke U, Zöll M, Peintner U, Rollinger JM. European medicinal polypores – A modern view on traditional uses. J Ethnopharmacol 2014; 154:564-583. doi: http

Open access

Dorota Hilszczańska

edition. Santa Cruz CA, USA. Botanica Press. 252 pp. ISBN 1570671435. Hong J. H., Choi Y. H. 2007. Physico-chemical properties of protein-bound polysac-charide from Agaricus blazei Murill prepared by ultra?ltration and spray drying pro­cess. International Journal of Food Science and Tech­nology, 42:1-8. Hoshi H., Yagi Y., Iijima H., Matsunaga K., Ishihara Y., YasuharaT. 2005. Isolation and characterization of a novel immunomodulatory a-glucan-protein complex from the mycelium of Tricholoma matsutake in basidiomycetes. Journal of

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Elena Părpăriţă, Cătălina N. Cheaburu, Silvia Florica Pațachia and Cornelia Vasile

-305. 7. Kim, S. J., Lee, C. K., Lee, Y. M. Electrical/pH-Sensitive Swelling Behavior of Polyelectrolyte Hydrogels Prepared with Hyaluronic Acid- Poly(vinyl alcohol) Interpenetrating Polymer Networks. React. Funct. Polym. 2003, 55, 291-298. 8. Wang, J., Ye, L. Structure and properties of polyvinyl alcohol/polyurethane blends. Compos. Part. B-Eng. 2015, 69, 389-396. 9. Haraguchi, K. Nanocomposite hydrogels. Curr. Opin. Solid State Mater. Sci. 2007, 11, 47-54. 10. Schexnailder, P., Schmidt, G. Nanocomposite polymer hydrogels

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Aldona Adamska-Szewczyk, Kazimierz Glowniak and Tomasz Baj

Abstract

Over the past five years, phytochemical and pharmacological studies have been conducted on material extracted from members of the Rutaceae family. In such work, new furochinoline-structured alkaloids were isolated from Ruta sp. and Dictamnus sp. Beyond the aforementioned, other substances with promising activity were isolated from the less-known species of Zanthoxylum, Evodia, Lonchocarpus, Myrthopsis and Teclea. Currently used forms of extraction, as well as methods of isolation and detection, allow the obtaining of pure, biologically active compounds. Many of these have antifungal, anti-bacterial and anti-plasmodial properties. Others are still being researched as potential drugs, which, in future, may be used in treating those afflicted with HIV and cancer. This article is designed to give the readers a thorough review of the active natural products from the Rutaceae family.

Open access

Damian Wojcieszak, Michał Mazur, Danuta Kaczmarek, Agata Poniedziałek and Małgorzata Osękowska

Abstract

The biological and photocatalytic activity of TiO2 and TiO2:Cu in relation to their structure, surface topography, wettability and optical properties of the thin films was investigated. Thin-film coatings were prepared by magnetron sputtering method in oxygen plasma with use of metallic targets (Ti and Ti-Cu). The results of structural studies revealed that addition of Cu into titania matrix (during the deposition process) resulted in obtaining of an amorphous film, while in case of undoped TiO2, presence of nanocrystalline anatase (with crystallites size of 20 nm) was found. Moreover, an addition of cooper had also an effect on surface diversification and decrease of its hydrophilicity. The roughness of TiO2:Cu film was 25 % lower (0.6 nm) as-compared to titania (0.8 nm). These modifications of TiO2:Cu had an impact on the decrease of its photocatalytic activity, probably as a result of the active surface area decrease. Antibacterial and antifungal properties of the thin films against bacteria (Enterococcus hirae, Staphylococcus aureus, Bacillus subtilis, Escherichia coli) and yeast (Candida albicans) were also examined. For the purpose of this work the method dedicated for the evaluation of antimicrobial properties of thin films was developed. It was revealed that Cu-additive has a positive impact on neutralization of microorganisms.

Open access

Artur Mikiciński, Piotr Sobiczewski and Stanisław Berczyński

., Baek K., Kang S.C. 2011. Po­tential roles of essential oils on controlling plant pathogen­ic bacteria Xanthomonas species: a review. Plant Pathol. J. 27 (3): 207-224. Basim H., Yegen O., Zeller W. 2000. Antibacterial effect of es­sential oil of Thymbra spicata L. var. spicata on some plant pathogenic bacteria. Z. Pflanzenkr. Pflanzensch. 279 (3): 279-284. Berczyński S., Machowicz-Stefaniak Z., Sobiczewski P. 2002. Wpływ wybranych fungicydów na przeżywalność Agro-bacterium tumefaciens/(Smith et Townsend) Conn w różnych rodzajach