374001

Effects of Soaking, Washing, and Cooking on Heavy Metal Concentrations in Five Polished Rice Varieties from Al-Ahsa local market, Saudi Arabia

Article

Last updated: 09 Apr 2025

Subjects

-

Tags

Food Chemistry

Abstract

Rice (Oryza sativa L.) may contain harmful substances such as heavy metals, posing health risks to humans. Several factors contribute to rice serving as a source of toxic heavy metals.This study aims to conduct a comprehensive risk assessment of heavy metals contamination (Cd, Cr, Pb, As, Ni, Zn, Hg, Fe, and Cu) of polished rice in the local market of Alhsa, Saudi Arabia. We employed an Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) to assess the impact of a 2-hour soaking, washing, and cooking process on the concentrations of heavy metals in rice samples.In raw polished rice, the level of arsenic (As) remained within the safe limit without any significant difference observed. However, lead (Pb) was present at high levels with a highly significant difference observed. Levels of zinc (Zn) and mercury (Hg) were lower than the specifications set by the World Health Organization and the Saudi Standard Specification. Cadmium (Cd) and chromium (Cr) were detected in all samples. In cooked rice samples, the mean concentrations were within the limits recommended by the WHO, except for lead (Pb).The pretreatment were found to be effective in reducing the concentrations of heavy metals in rice samples. The Kingdom of Saudi Arabia places significant importance on ensuring food safety and to protect the health of its citizens.

DOI

10.21608/ejchem.2024.304208.10011

Keywords

ICP OES, Rice (Oryza sativa L.), Heavy metals, Hazard index, TOXIC ELEMENTS

Authors

First Name

Gamal A.

Last Name

El-Sharnouby

MiddleName

-

Affiliation

Food Science & Technology Department, Faculty of Agriculture, Al-Azhar University, Nasr City 11884, Cairo, Egypt.

Email

gamali59@azhar.edu.eg

City

Neo Cairo, Egypt

Orcid

0000-0002-7101-1378

First Name

Saeed

Last Name

Asiri

MiddleName

A.

Affiliation

Food Science & Nutrition Department, Faculty of Agricultural and Food Sciences, King Faisal University, Al-Ahsa 31982, P.O.Box 420, Saudi Arabia.

Email

sasir@kfu.edu.sa

City

Alhassa, Saudi Arabia

Orcid

0000-0001-6515-2281

Volume

68

Article Issue

4

Related Issue

53790

Issue Date

2025-04-01

Receive Date

2024-07-14

Publish Date

2025-04-01

Page Start

237

Page End

244

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_374001.html

Detail API

http://journals.ekb.eg?_action=service&article_code=374001

Order

374,001

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Effects of Soaking, Washing, and Cooking on Heavy Metal Concentrations in Five Polished Rice Varieties from Al-Ahsa local market, Saudi Arabia

Details

Type

Article

Created At

09 Apr 2025