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acrylamide is formed in food through Maillard's reaction during thermal processing, and has been shown to be neurotoxic in humans, and a possible carcinogen. Studies have shown that β-glucans from Pleurotus ostreatus have diverse biological properties such as antioxidant and anticancer activities. Objective: the aim of this work was to evaluate the protective effect of β-glucans from Pleurotus ostreatus against the harmful effects of acrylamide consumption in mice. Methods: β-glucans were obtained by alkaline-acid hydrolysis of Pleurotus ostreatus, and the content was characterized by liquid chromatography. To evaluate the effect of β-glucans on the expression of glutathione, Balb/c mice were used, and 4 test groups were established. All groups were fed normally, and the groups treated with acrylamide were administered the compound intragastrically at a concentration of 50 g/mL; β-glucans were administered at a concentration of 50 g/mL. Results: mice exposed to acrylamide showed a marked variation in the activity of glutathione enzymes in the liver. Significant differences (p &lt; 0.05) were only found in the expression of glutathione transferase, which was increased almost 3 times in the group treated with β-glucans as compared with the control group, and 1.5 times as compared with the group treated with acrylamide. Conclusions: the results show that β-glucans could act by increasing the activity of enzymes involved in xenobiotic detoxification, thus protecting the biological system against the harmful effects caused by acrylamide intake.

In vivo assessment of the protection conferred by β-glucans from Pleurotus ostreatus against the harmful effects of acrylamide intake (Part I)