Five natural secondary metabolites as cinnamic acid (1), (+)-catechin (2), (-)-epicatechin (3), p-coumaric (4), and ferulic (5) were isolated from Amanita caesarea based on anti-inflammatory activity-guided extraction. Their structures (1-5) determined by NMR spectra well comparison with previously reported literature. Compounds 3 5 have been A. for the first time. The activity through inhibiti...

Background: Food preservation includes procedures to assure higher level of food safety, hygiene and stability. To achieve this goal, the use of combination biopreservatives, such as Essential oils and Probiotics, has gained increased attention. Objective: The aim of this study was to evaluate the antimicrobial effects of Mentha longifolia L. esential oil and Lactobacillus casei aginst Listeri...

Tyrosinase is a key enzyme for melanin biosynthesis, catalyzing the oxidation of L-tyrosine to L-dopaquinone. The tyrosinase inhibition is an effective approach to control hyperpigmentation in human skin and enzymatic browning in fruits and vegetables. Kojic acid is a naturally-occurring tyrosinase inhibitor which has been clinically used to treat the hyperpigmentation of skin. However, kojic a...

Herbal nanoparticles gain lot of attention because of their pharmaceutical importance. The present study reports the eco-friendly synthesis, characterization and their tyrosinase activity of silver nanoparticles (AgNPs) using aqueous extract of Bidens frondosa. The appearance of brown color indicated the formation of B. frondosa AgNPs. The Formation of AgNPs was confirmed by UV–Vis spectroscopy...

understanding the function of trichoderma species in the control of phytophthora drechsleri in pistachio orchards is very important.  in this study, the effects of liquid extra-cellular secretions and volatile compounds secreted by 27 isolates of trichoderma harzianum, t. crassum, t. koningii, t.aureoviride, t. asperellum, t. brevicompactum, t.longibrachiatum and t. virens were investigated on ...

neural mass models are computational nonlinear models that simulate the activity of a population of neurons as an average neuron, in such a way that different inhibitory post synaptic potential (ipsp) and excitatory post synaptic potential (epsp) signals could be reproduced. these models have been developed either to simulate the recognized neural mechanisms or to predict some physiological fac...

background: cumin ( cuminum cyminum l . [family apiaceae]) seed essential oil is reported to have antiseptic activity. until now the antiviral properties of cumin seed extracts on viruses such as herpes simplex virus-1 (hsv-1) have not been studied. the objective of this study was to investigate the in vitro effects of aqueous, methanolic and hydroalcoholic extracts of cumin seed on hsv-1 growt...