Ara??a (Psidium Cattleianum Sabine) ethanol extracts increase lifespan and alleviate oxidative stress in Caenorhabditis elegans

Yellow- and red-colored berry varieties of arac ' a (Psidium cattleianum Sabine) ethanolic extracts have excellent antioxidant capacity in vitro and in vivo. Extracts were not toxic to Caenorhabditis elegans up to the highest concentration tested (5 mg CAE/mL), as demonstrated by the survival and reproduction assays. The different colors of the fruits showed different responses to the stressors used (hydrogen peroxide and juglone), probably due to the different bioactive compounds prevalent in each color. We observed that the yellow arac ' a extract showed a greater capacity to remove free radicals, although both extracts prolonged the worms' lifespan and alleviated oxidative stress. Additionally, our findings showed that changes in hsp-16.2 expression may be related to the results obtained.

Automated summary

Yellow- and red-colored berry varieties of arac ' a have excellent antioxidant capacity both in vitro and in vivo. The extracts showed no toxicity to Caenorhabditis elegans, and the different colors of the fruits had different responses to stressors. The yellow extract demonstrated a greater ability to remove free radicals and both extracts prolonged the worms' lifespan and reduced oxidative stress. Changes in hsp-16.2 expression may be related to the observed results.