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Content of Toxic Elements in Rice-2004

Muhammad Ali Siddiquee
Senior Scientific Officer
Grain Quality and Nutrition Division, BRRI HQ

Khandaker Aminul Kabir
chief Scientific Office and head
Grain Quality and Nutrition Division, BRRI HQ

Abstract/ Executive Summary:

Rice is a staple food and a good source of nutrition for half of the earth’s population. However, rice may accumulate hazardous levels of toxic elements. rice is imported from many countries; some of which suffer from arsenic contamination in their groundwater and soil. Despite the large daily consumption of rice in Bangladesh, no investigations on the contamination of rice sold there are published so far. Additionally, reports on the contamination of rice with other toxic elements are rare in the literature.Twenty five rough rice samples were collected from 7 BRRI regional stations. Samples were milled for brown and milled rice. Brown and milled rice were analyzed for Tin (Sn), Cadmium (Cd) and lead (Pb). Results showed that on an average brown rice contained 3.96μg/kgSn, 47.40μg/kgCd and 19.38μg/kgPb. The content of elements varied among the varieties.

Keywords: Rice, Toxic elements and Cadmium

Location: Grain Quality and Nutrition Division Laboratory, BRRI HQ

Start Date: 01-07-2004

End Date: 01-06-2005

Program Area: Quality and Nutrition

Commodity: Rice

Objectives:

To measure the toxic elements in rice.

Methodology:

Twenty six rice samples were collected from Gazipur, Rangpur, Rajshahi, Bhanga, Comilla, Habigonj and Satkhira BRRI regional stations. The brown and milled rice samples of each variety were sent to Japan for analysis of Tin (Sn), Cadmium (Cd) and Lead (Pb).

Source of Information: Proceedings of the BRRI Annual Internal Review, 2004-2005, Page no. 25, BRRI, Gazipur-1701

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Tin content varied from from 2.28μg/kg to 6.45 μg/kg with a mean of 3.9 μg/kg. The mean retention of the elements was around 49.0%. Cadmium content in brown rice ranged from 14.76-278.73 μg/kg with a mean of 56.43 μg/kg. The average retention of cadmium in milled rice was 84.0%. Lead content in brown rice varied from 14.00 μg/kg to 73.33 μg/kg and the mean value was 38.11 μg/kg.

Knowledge Management: Report/Proceedings