Clove essential oil and its major component, eugenol: a comparative study of their antioxidant and anticancer properties.

L. (clove) is a species native to subtropical countries. Its dried flower buds are rich in essential oils, which have shown insecticidal, anti-inflammatory and anaesthetic effects.

Active indole-3-acetic acid biosynthesis by the bacterium Azospirillum brasilense cultured under a biogas atmosphere enables its beneficial association with microalgae.

Aims: This study assessed, at the physiological and molecular levels, the effect of biogas on indole-3-acetic acid (IAA) biosynthesis by Azospirillum brasilense as well as the impact of this bacterium during CO fixation from biogas by Chlorella vulgaris and Scenedesmus obliquus.

Methods And Results: IpdC gene expression, IAA production and the growth of A. brasilense cultured under air (control) and biogas (treatment) were evaluated.