Assessment of chemical contaminants in fresh and packaged tender coconut (Cocos nucifera) water

Jonnalagadda P.R., Medithi S., Lari S., Chinthanuri K., Kasa Y.D., Nagaraju R., Vanka J., Kodali V. (2022): Assessment of chemical contaminants in fresh and packaged tender coconut (Cocos nucifera) water. Czech J. Food Sci., 40: 154–162.

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Pesticide residues and heavy metals were analysed in both fresh tender coconut water (FTCW) (n = 161) and packaged tender coconut water (PTCW) (n = 126) samples collected from three southern states of India [Andhra Pradesh (AP), Kerala (KL), and Tamil Nadu (TN)]. A method validated in the laboratory using liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used for pesticide residues, while heavy metals were analysed using a validated method of inductively coupled plasma-optical emission spectrometry (ICP-OES). Significant differences in heavy metal concentrations were assessed using analysis of variance (ANOVA) and post hoc test (between different varieties collected 'within' and 'among' states). FTCW samples [n = 9 (6%)] collected from TN showed Monocrotophos and Malathion residues in the range of 1.0 µg L–1 to 51.6 µg L–1 and 0.5 µg L–1 to 0.6 µg L–1, respectively, while they were detected in n = 5 (4%) of the PTCW samples at a range of 0.90 µg L–1 and 0.82 µg L–1 to 1.56 µg L–1. Heavy metals such as cadmium (Cd), chromium (Cr), lead (Pb), and stannum (Sn) were detected in different varieties collected from all three states. Some of the PTCW samples also contained traces of Cd, Cr, cobalt (Co), and Pb. Arsenic (As) was found in one sample from KL, while none of the samples was contaminated with mercury (Hg). The present study accentuates the need for fixing standards for the pesticide residues in coconut water.

Begum A., Krishna H. (2010): Chemical and heavy metalprofile of coconut palms irrigated with lake water. International Journal of ChemTech Research, 2.3: 1514–1520.
Butylina S., Martikka O., Karki T. (2018): Effect of inorganic pigments on the properties of coextruded polypropylene-based composites. Journal of Thermoplastic Composite Materials, 31: 23–33.
Deme P., Azmeera T., Kanjilal S., Jonnalagadda P., Upadhyayula V.S. (2013): LC-MS/MS determination of organophosphorus pesticide residues in coconut water. Food Analytical Methods, 6: 1162–1169.
EC (2017): Pesticides. European Commission. Available at (accessed Aug 31, 2021).
Ferreira J., Ferreira J., Talamini V., Facco J., Rizzetti T., Prestes O. (2016): Determination of pesticides in coconut (Cocosnucifera Linn.) water and pulp using modified QuEChERS and LC–MS/MS. Food Chemistry, 213: 616–624.
Hague T., Petroczi A., Andrews P., Barker J., Naughton D. (2008): Determination of metal ion content of beverages and estimation of target hazard quotients: A comparative study. Chemistry Central Journal, 2: 13.
Islam M., Rahaman A., Afrose A. (2018): Assessment of heavy metal concentration in coconut water. Recent Research in Science and Technology, 10: 7–10.
Jayasekhar S., Chandran K., Thamban C., Muralidharan K. (2019): Coconut sector in India experiencing a new regime of trade and policy environment: A critical analysis. Journal of Plantation Crops, 47: 48–54.
Jnanadevan R. (2016): Coconut – The Tree of Life Sustains Family Well Being. Indian Coconut Journal: 7–9. Available at (accessed Dec 20, 2021).
KAU (2021): Coconut (Cocos nucifera). Kerala Agricultural University (KAU) Agri – Infotech Portal. Available at (accessed Aug 31, 2021).
Magomya A., Yebpella G., Okpaegbe U. (2015): An assessment of metal contaminant levels in selected soft drinks sold in Nigeria. International Journal of Innovative Science, Engineering and Technology, 2: 517–522.
Paixao L., Brandao G., Araujo R., Korn M. (2019): Assessment of cadmium and lead in commercial coconut water and industrialized coconut milk employing HR-CS GF AAS. Food Chemistry, 284: 259–263.
Pantipkayee, Krongkwanpooniem, Nawapornkeatkawinwong (2018): Heavy metal residues in coconut and soil from coconut orchard in Ratchaburi, Thailand. In: Proceedings of Researchfora 15th International Conference, Hamburg, Germany, Feb 22–23, 2018: 52–55.
Parth V., Murthy N., Saxena P. (2011): Assessment of heavy metal contamination in soil around hazardous waste disposal sites in Hyderabad city (India): Natural and anthropogenic implications. E3 Journal of Environmental Research and Management, 2: 027–034.
Priya S., Ramaswamy L. (2014): Tender coconut water – Natures elixir to mankind. International Journal of Recent Scientific Research, 5: 1485–1490.
Raghavi M., Sakthi Balaa M., Surender S., Lokesh P., Kalidas K. (2019): Review on area, production and productivity of coconut in India. International Journal of Research in Business Management, 7: 1–6.
Ramesh R., Ramasamy M., Singh N. (2013): Management of Bud Rot Disease in the Coconut Plantations of Goa. Extension Folder No. 66. Goa, India, Indian Council of Agricultural Research (ICAR) Research Complex for Goa. Available at (accessed Aug 31, 2021).
Reddy K., Reddy J., Babu R., Azam S., Rajamannar M. (1998): Residue of tridemorph in coconut water and kernel when administered through root. Pesticide Research Journal, 10: 109–111.
Roberts I., Orisakwe O. (2011): Evaluation of potential dietary toxicity of heavy metals in some common Nigerian beverages: A look at antimony, tin and mercury. QScience Connect, 2011: 1–10.
Thomas S., Pertiwi D., Bagus S., Nuri S., Brillian J., Alfiza N. (2017): Effect of tender coconut water on blood lipid levels in high fat diet fed male rats. Journal of Krishna Institute of Medical Sciences, 6: 63–68.
TNAU (2014): Crop Protection: Important Pests of Coconut. Tamil Nadu Agricultural University (TNAU) Agritech Portal. Available at (accessed Aug 31, 2021).
USEPA (2014): Cleaning up the Nation's Hazardous Wastes Sites. United States Environmental Protection Agency (USEPA). Available at (accessed Dec 20, 2021).
Warsakoon W. (2010): Preliminary study on heavy metals in coconut and coconut products. Coconut Research and Development Journal, 26: 1–7.
WHO (2011): Guidelines for Drinking-water Quality. 4th Ed. World Health Organization (WHO). Available at;jsessionid=85899F7BD976C1D0487EF8081ED08678?sequence=1 (accessed Aug 31, 2021).
Wuana R., Okieimen F. (2011): Heavy metals in contaminated soils: A review of sources, chemistry, risks and best available strategies for remediation. International Scholarly Research Network (ISRN) Ecology, 2011: 1–20.
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