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Monsur Ahmad
Chattogram Veterinary and Animal Sciences University
Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Nursing Public Health

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Occurrence of Heavy Metal in Green Coconut Water and Surface Seawater of the Sea Beach Areas of Bangladesh Monsur Ahmad; Md Junayed; Md. Rahim Badsha; Md. Fahad Bin Quader; Shamsul Morshed
Health Dynamics Vol 1, No 1 (2024): January 2024
Publisher : Knowledge Dynamics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33846/hd10102

Abstract

Background: Green coconut water is a most popular functional drink in all tropical countries. The presence of toxic heavy metals in surface seawater is a major problem globally, with a large share in developing countries like Bangladesh. The objective of the study was to assess the concentration of heavy metals like Pb, Cr, Ni, Cu, and Cd in green coconut water and surface seawater around sea beach areas of Bangladesh. Methods: Green coconut water and surface seawater samples were collected from six sea beach areas and transferred to the laboratory. Then, they were allowed for digestion, and finally, the concentration of heavy metal was assessed by the atomic absorption spectrophotometer (AAS). Results: In green coconut water, the concentrations of heavy metal exist bellowing the safe limit with the following order: Pb > Cr > Cu > Ni > Cd. But, Pb, and Cr were prevalent in surface seawater and found to decrease in a sequence of Pb > Cr > Ni > Cd, Cu. Besides, Human health risks associated with the intake of these metals were evaluated in terms of metal pollution index (MPI), daily intake of metals (DIM), health risk index (HRI), and hazard index (HI). However, most of the index values were found to be bellowing the reference value. Conclusion: The concentration of green coconut water is almost proportional to surface seawater in sea beach areas. The high prevalence of Pb and Cr in surface seawater is alarming, and this impact is already seen in green coconut water. So, it is necessary to take action on seawater pollution in Bangladesh.
Antioxidant Activity and Bioactive Compounds of Fruits Available in Bangladesh Monsur Ahmad; Farzana Shabnam Punam; Mahammad Amanullah; Nazmul Sarwar; Mohammad Mozibul Haque; Nilufa Yeasmin; Shireen Akther
Health Dynamics Vol 1, No 1 (2024): January 2024
Publisher : Knowledge Dynamics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33846/hd10105

Abstract

Background: The complex problems of different chronic degenerative diseases are spreading in human health across the globe. To combat this problem, fruits are the effective gear proved by many epidemiological studies. The aim of the study was to determine the antioxidant activity and three bioactive compounds like total flavonoids, total polyphenols and total anthocyanins in 23 species of fruits available in Bangladeshi market. Methods: Antioxidant activity (AOA) and bioactive compounds of fruits were determined by UV-visible spectroscopy. Antioxidant activity was undertaken by DPPH scavenging assay, total polyphenol content (TPC) was measured by folin-ciocalteu method and total flavonoid content (TFC) content was measured by aluminium chloride colorimetric method. Results: Among 23 species of fruits, AOA was higher in Katajamin (303 mg/100 g) followed by Dragon Fruits (171 mg/100 g), Guava (131 mg/100 g), Bael (130 mg/100 g) and average value was 125 mg/100 g of extract. TPC was varied from 10 to 305 mg GAE/100 g and average value was 87 mg GAE/100 g. Mango (305 mg GAE/100 g) showed higher TPC, followed by Pome Granate (222 mg GAE/100 g), Apple (207 mg GAE/100 g), Katajamin (141 mg GAE/100 g) and Bael (130 mg GAE/100 g). Again, TFC was ranged from Ashari (06±3.94 mg QE/g) to Tomato (84±13.69 mg QE/g) and the average TFC was 37 mg QE/g. In addition, total anthocyanin content (TAC) was highest in Mango (142±3.46 mg TA/100 g) and lower in Ashari (02±0.74 mg TA/100 g). There was a significant correlation (p≤0.05) between antioxidant activity and bioactive compounds and among the bioactive compounds. Conclusion: Important messages from this study are, majority of the rare fruits are the important sources of antioxidant and bioactive compounds which helps to reduce the risk of chronic degenerative diseases and can be used in food processing industry for nutraceutical product development.
Co-Authors Farzana Shabnam Punam Mahammad Amanullah Md Junayed Md. Fahad Bin Quader Md. Rahim Badsha Mohammad Mozibul Haque Nazmul Sarwar Nilufa Yeasmin Shamsul Morshed Shireen Akther