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Opus Journal Demo

Vol 23, Issue 3,2033

Opus Journal Demo

Vol 3, Issue 5,2024

Opus Journal Demo

Vol 43, Issue 2,2024

Opus Journal Demo

Vol 123, Issue 23,2023

Opus Journal Demo

Vol 12, Issue 23,2023

Opus Journal Demo

Vol 2, Issue 4,2023

Natural polyphenols, ferulic acid (FA) and hesperetin (Hp) were tested for their Fe3+-reducing power, using the TPTZ methodology, as a first step to rank them according to their antioxidant potential. Ranking also included quercetin (Qt), a very well-studied natural, polyphenolic antioxidant, and ascorbic acid (AA). All phenolics considered were al...

By Marie Aoun, Dimitris P Makris

Paeonia peregrina Mill. and Paeonia tenuifolia L. are endangered species of herbaceous plants with high ornamental and medicinal values. There are a few natural habitats in Serbia where these plants spontaneously grow: Krivi Vir, Skrobnica, Golina, Pirot, Deliblato Sands, and Sokobanja, in the municipality of Knjaževac. In July 2021, the symp...

By Sara Mikić, Tatjana Marković, Nina Vučković, Željana Prijić, Jingqi Xue

Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test Test test ...

By Mladen Babic Layout 2, Mladen Autor

This paper is a comparative survey of the National Food Safety Systems (NFSS) of the European Union (EU) Member-States (MS) and the Central EU level. The main organizational structures of the NFSS, their legal frameworks, their responsibilities, their experiences, and challenges relating to food safety are discussed. Growing concerns about food saf...

By Andreas Hadjigeorgiou, Elpidoforos S. Soteriades, Anastasios Philalithis, Anna Psaroulaki, Yiannis Tselentis, Achilleas Gikas

This study was designed to investigate the impact of different extraction methods (ultrasound-assisted extraction, maceration, and microwave-assisted extraction) on the content of polyphenols and biological activities of leaf extract of Paeonia daurica subsp. daurica collected in Južni Kučaj (Serbia). The total polyphenol and flavonoid c...

By Petar Batinić, Natalija Čutović, Aleksandra Jovanović, Dejan Stojković, Gokhan Zengin, Tamara Carević, Željana Prijić, Aleksandar Marinković, Tatjana Marković

The aims of the present research were to develop and characterize 4-hydroxycoumarin-loaded liposomes via the determination of encapsulation efficiency, antioxidant capacity, vesicle size, polydispersity index (PDI), zeta potential, conductivity, mobility, density, surface tension, viscosity, and 60-day storage stability. The encapsulation efficien...

By Aleksandra A. Jovanović, Edina Avdović, Ana Plećić, Vojislav Ćirić, Branko Bugarski, Zoran Marković

Vaccinium myrtillus L. (bilberry, Ericaceae), a perennial, wild, and small deciduous shrub that grows in the mountains and forests of Europe. The leaf extracts are widely used in traditional medicine due to their astringent, antiseptic, antioxidant, anti-inflammatory, hypolipidemic, and hypoglycemic activities. Microwave-assisted extraction provid...

By Muna Rajab Elferjane, Petar Batinić, Natalija Čutović, Milena Milošević, Vojislav Ćirić, Aleksandar Marinković, Aleksandra A. Jovanović

Plants are natural products responsible for many biological activities. It is quite common to use plants that attract attention with their nutritive properties within the scope of complementary medicine. Matricaria species, which have naturally distributed, are among the plants used in traditional medicine. Revealing the biological activities of p...

By Hasan Hüseyin Yaz, Imran Uysal, Abdullah Ozan Polat, Falah Saleh Mohammed, Mustafa Sevindik

25.12.2023. Scientific article


By Zorana Mutavski, Mirjana Sulejmanović, Sladjana Krivošija, Changhui Zhao, Senka Vidović

Dental caries is one of the most prevalent public health problems. It is caused by a well-organized bacterial structure i.e., biofilm, where the cariogenic bacteria Streptococcus mutans is recognized as the primary pathogenic factor. Furthermore, the first phase of dental biofilm onset is predominantly associated to bacteria of the Streptococcus g...

By Milica Nemoda, Biljana Nikolić, Tatjana Vukotić, Dragana Rakašević, Dejan Marković, Milica Jovičić, Jelena Marinković

This journal is Formerly known as a Test Journal