Scientific journal

61 2022

Journal of Food and Nutrition Research
Summary No. 4 / 2022

Vonnie, M. J. – Rovina, K. – Erna, H. K. – Mantihal, S. – Huda, N. – Wahab, R. A.
Development of a colorimetric sensor based on tapioca starch and gold nanoparticles for the detection of cadmium residues in fish products
Journal of Food and Nutrition Research, 61, 2022, No. 4, s. 315-322

Kobun Rovina, Department of Food Science and Nutrition, Faculty of Food Science and Nutrition, University Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia. E-mail:

Received 5 October 2021; 1st revised 29 May 2022; accepted 26 July 2022; published online 13 October 2022.

Summary: Fish is consumed by many people around the world. However, fish may contain various pollutants such as heavy metals like mercury, cadmium, lead, iron, copper and nickel, with Cd being one of the most toxic elements. Therefore, this work focused on the development of a sensitive and selective colorimetric detection using a film of tapioca starch and gold nanoparticles (TS-AuNP) in the presence of Cd in fish. The detection mechanism was based on the aggregate formation between AuNP and Cd, associated with a colour change from red to purplish grey. The detection limit was 13.21 mmol·l-1 and the response was linear in the range from 6 mmol·l-1 to 12 mmol·l-1 (R2 = 0.9935). The limit of quantification was calculated to be 40.04 mmol·l-1. Notably, the biodegradable film was successfully used for the determination of Cd in seven different fish species. These results show that the developed biodegradable film was successful in detecting the presence of Cd in fish samples.

Keywords: heavy metal; cadmium; gold nanoparticles; biodegradable film; colorimetric sensor; fish

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