The study reports the phenolic profiles and hepatoprotective properties of mango peel powder against carbon tetrachloride (CCl4) induced hepatic damage in rats. It was found that the mango peel possesses high amount of polyphenols and flavonoids as analyzed by HPLC‐DAD. Supplementation of mango peel powder in CCl4 administered rats exhibit strong protective effects in vivo. The results suggest that mango peel powder supplementation antagonized the CCl4‐induced increase in serum alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase activities and hepatic malondialdehyde levels. Furthermore, mango peel powder supplementation prevented decrease in antioxidant catalase activity and glutathione concentration in CCl4‐administered rats. Mango peel powder supplementation also prevented the inflammatory cells infiltration and fibrosis in liver of CCl4 treated rats. This finding demonstrates that the polyphenol‐rich mango peel powder can be explored as a chemopreventive or chemotherapeutic agent against oxidative‐stress‐related liver disorders. Practical applications Mango (Mangifera indica L.), the most important fruit in Anacardiaceae family, is a tropical fruit which possesses high nutritional and medicinal value. The research showed that mango peel possesses numerous phenolic antioxidants. The results also demonstrated that mango peel powder exerts a protective effect against carbon tetrachloride‐induced liver injury in rats. Every year, considerable amount of mango peel is produced in juice industries which are left as waste product. Thus, this project will provide a potential source of phenolic compounds and potential approach to prevent liver diseases.

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This paper presents the detection and propagation of heavy metals, particularly Chromium (Cr), in poultry in the Rajshahi area using the X-ray fluorescence (XRF) technique. The investigation was done to assess the possible transfer of heavy metals from poultry feeds to chicken meat. The study was carried out in the Rajshahi including collection feeds to chicken. It was found that a considerable amount of Cr was confirmed in all four locally produced poultry feeds and also assured that the Cr contained in chicken propagates to the chicken meat and egg. Among the four most widely used feeds in the Rajshahi region, “Adorsho Feed (Pabna)” shows a maximum Cr concentration of 17.3 ppm. Six different parts of the chicken for different ages which were grown by “Adorsho Feed” were considered for further study. About 4.3 ppm of Cr was found in Yolk whereas a little small about 2.7 ppm was found in the albumin. The average value of Cr in six parts of chicken remains almost the same, which is 3.74 ppm, irrespective of age. It is found that about 21.6% of Cr was propagated from the poultry feed to chicken flesh and also about 90% of Cr was propagated from the chicken to egg. The experimental results indicate that the investigation of the transmission of heavy metals like Cr from feed to egg and poultry is efficiently evaluated by using X-ray Fluorescence Technique.