Christos Petrakis

TL;DR: The scavenging activities of three standard antioxidants were evaluated and showed that the three standards were efficient and effective in inhibiting both Co(II)/EDTA-induced luminol chemiluminescence and the free radical DPPH*.

TL;DR: With the exception of Sideritis syriaca, in all the plants and spices examined α-tocopherol was found to be present, and these values are higher than those reported for oil seeds or other oil sources.

TL;DR: SPME/GC-ECD and SPME coupled with gas chromatography-mass spectrometry were also used to check for the formation of chlorinated and other toxic by-products; at the conditions in question, the presence of such compounds was not confirmed.

TL;DR: In this article, the effect of irrigation and harvest time on the quality of almonds was studied with respect to kernel quality with two almond cultivars, Ferragnes and Texas, and it was found that late harvested almonds contained more dry matter per kernel, higher oil content but of lower quality, based on the UV absorption coefficients and oil composition, and higher sugar content mainly due to further sucrose accumulation compared to early harvested almonds.

TL;DR: The combination of Co(II) and EDTA at pH 9 was found to give the optimum signal with reference to time stability, intensity and reproducibility, and a simple, enzyme-free and time-independent technique is proposed for the detection and quantification of hydrogen peroxide.