Effect of drought and soil heavy metal contamination on three maple species: a case study of Kastamonu University campus in Türkiye.

This study investigated the effects of heavy metals and drought on tree drying in three maple species located in the Kastamonu Campus in northwestern Türkiye. Soil samples were taken from 0-30 cm depth under maple species, and some soil properties were analyzed. The standardized precipitation evapotranspiration index was calculated for the drought impression using 71 years of climate data.

Investigation of antioxidant activities of stored at different temperatures.

In this study, the antioxidant capacity of oyster mushroom () stored in five different temperature environments was investigated by DPPH (1,1 diphenyl-2-picryl hydrazyl) radical scavenging method. The antioxidant capacity results of oyster mushroom extracts were examined by spectroscopic measurements and expressed as percent of inhibition. The IC values of mushroom samples were calculated with DPPH method using calibration equations, and change in antioxidant properties was also tried to decipher by SEM images.

Lanostane-Type Triterpenes and Abietane-Type Diterpene from the Sclerotia of Chaga Medicinal Mushroom, Inonotus obliquus (Agaricomycetes), and Their Biological Activities.

Three new lanostane-type triterpenes (compounds 1-3), 1 new abietane-type diterpene (compound 4), and 10 known compounds (5-14) were isolated from sclerotia of Inonotus obliquus. Their structures were elucidated through a combination of spectrometric techniques, including infrared, 1-dimensional, and 2-dimensional nuclear magnetic resonance and high-resolution electrospray mass spectrometry. In in vitro assays, compounds 2 and 4-12 showed hepatoprotective effects against D-galactosamine-induced damage in WB-F344 cells, with inhibitory effects from 35.