Heavy metals contamination into food chain is considered as an emerging crisis throughout the world especially in developing countries like Bangladesh. The concentration of heavy metals including Cr and Pb in commercial poultry feed samples (protein meal feed, meat and bone meal and fish meal feed) were detected by using Air/ Acetylene Flame Atomic Absorption Spectrophotometer. The mean concentration of heavy metals were found in protein meal feed in a range where Cr 10.63 to 218.10 mg kg -1 and Pb 7.37 to 52.25 mg kg -1 . In meat and bone meal feed samples, Cr was recorded from 9.15 to 40.59 mg kg -1 and Pb 5.0 to 61.42 mg kg -1 . Cr was found 17.68 to 78.39 mg kg -1 and Pb 3.54to 16.44 mg kg -1 in fish meal feed samples. However, results showed that all feed samples contained chromium and lead where both metals were present at alarming levels in most of the samples. It is therefore suggested that regular detection of heavy metals especially Cr and Pb should be done to evaluate the health risks and to protect the end user from food that might harmful for their health.

The upward trend of consumption of processed food must not dim the demand of taking healthy and safe food among population. Thus, six popular commercial brands of instant mango drinks powder of Bangladesh were targeted to investigate some quality parameters (proximate compositions, mineral contents and bioactive compounds). Mineral contents and bioactive compounds of instant mango drinks powder were determined by using biochemical analyzer and UV-visible spectrophotometer, respectively. Results of proximate analysis showed that moisture content, ash content, fiber content, and carbohydrate content of different brands of instant mango drinks powder ranged from 0.21 to 0.25%, 0.45 to 0.55%, 0.10 to 0.40%, and 98.83 to 99.21%, respectively, whereas energy value ranged from 395.32 to 396.84 Kcal/100g. Sodium, potassium, calcium, chloride, phosphorus, iron and vitamin-C were also determined, which showed the significant different (p<0.05) values among different brands. Total anthocyanin content (TAC), Total flavonoid content (TFC), Total phenolic content (TPC), Antioxidant capacity were determined as bioactive compounds. Results of bioactive compounds analysis also showed that the samples were significantly different (p<0.05). Although, the quality varied from brand to brand, but all the samples could be good source of vitamin-C, carbohydrate and energy. Furthermore, health concerning issues can be improved by focusing the bioactive compounds of commercially available instant drinks powder. Int. J. Agril. Res. Innov. Tech. 10(2): 54-58, December 2020