Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Jan Nawrot"'
Autor:
Magdalena Podkowik, Marcelina Mazur, Jacek Bania, Andrzej Skrobiszewski, Witold Gładkowski, Jan Nawrot, Tomasz Klejdysz, Czesław Wawrzeńczyk
Publikováno v:
Pest Management Science. 72:489-496
BACKGROUND Lactones are well known for their biological activity. Grosheimin and repin are potent deterrents against storage pests. The unsaturated lactones have exhibited a wide spectrum of antibacterial activity. In our study we focused on the synt
Autor:
Anna Gliszczyńska, Andrzej Skrobiszewski, Paulina Walczak, Tomasz Klejdysz, Witold Gładkowski, Czesław Wawrzeńczyk, Gabriela Maciejewska, Jan Nawrot
Publikováno v:
Journal of Chemical Sciences. 127:687-699
Eighteen racemic β-aryl-γ-lactones derived from simple aromatic aldehydes have been obtained in the chemical synthesis. Iodolactones (5c and 6c) were synthesized from (E)-4-(benzo[d][1′,3′]-dioxol-5′-yl)-but-3-en-2-one (1). Reductive dehaloge
Publikováno v:
Progress in Plant Protection.
Autor:
Dorota Piasecka-Kwiatkowska, Magdalena Zielińska-Dawidziak, Jan Nawrot, Michał Michalak, Magdalena Gawlak
Publikováno v:
Journal of Stored Products Research. 56:43-48
Granary weevil infestation in wheat kernels is difficult to detect since the insects cause a hidden infestation by developing inside the grain. In order to identify an early infestation of stored wheat, a technique involving electrophoresis combined
Autor:
Łukasz Chrzanowski, Krzysztof Kubiak, Agnieszka Zgoła-Grześkowiak, Łukasz Ławniczak, Bartosz Markiewicz, Jan Nawrot, Agata Sznajdrowska, Juliusz Pernak
Publikováno v:
New J. Chem.. 38:3146-3153
Ammonium and piperidinium theophyllinate-based ILs were synthesized and characterized. Physicochemical properties, such as thermal stability, phase transition temperatures, viscosity, density, refractive index, as well as surface activity, feeding de
Publikováno v:
Open Chemistry, Vol 11, Iss 12, Pp 2120-2133 (2013)
Five positional isomers and thirty derivatives of alpha-asarone wereobtained as a bioactive set of substances, and their deterrent activity against the Colorado potato beetle was studied. The lipophilicity values of thirty-six compounds were determin
Autor:
Jan Nawrot, Czesław Wawrzeńczyk, Witold Gładkowski, Magdalena Podkowik, Marcelina Mazur, Agata Białońska, Jacek Bania
Publikováno v:
Pest Management Science. 70:286-294
BACKGROUND In our previous studies bicyclic γ-lactones with cyclohexane ring exhibited high antifeedant activity against storage pests. The activity was correlated with the type and number of substituents in the cyclohexane ring. One of the most pot
Autor:
Jan Nawrot, Juraj Harmatha
Publikováno v:
Phytochemistry Reviews. 11:543-566
This review summarises information on compounds of plant origin and plant products as feeding inhibitors for stored product insects. More than 200 compounds (mostly sesquiterpenes) and over 160 plant extracts have been tested to date. Indeed, we did
Autor:
Anna Cieniecka-Rosłonkiewicz, Juliusz Pernak, Jan Nawrot, Tadeusz Praczyk, Katarzyna Materna, Krzysztof Wasiński, Filip Walkiewicz
Publikováno v:
Science China Chemistry. 55:1532-1541
In this paper, we show that sweet quaternary ammonium, pyridinium, and imidazolium cyclamates are cheap, thermally stable, surface and biologically active ionic liquids, with potential application as feeding deterrents.
Publikováno v:
Journal of Stored Products Research. 48:19-24
Mass losses in wheat kernels infested by the granary weevil were determined using soft X-ray imaging. The mass loss strongly depended on the life stage of the pest insect. Hence, determination of the correlation between developmental stage and mass l