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Article
Publication date: 8 November 2023

Ekpor Anyimah-Ackah

This study aims to examine the effect of traditional fermentation on gari’s total heavy metal and mineral nutrient content.

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Abstract

Purpose

This study aims to examine the effect of traditional fermentation on gari’s total heavy metal and mineral nutrient content.

Design/methodology/approach

This study used a quantitative approach, descriptive-analytical design to baseline the risk of heavy metals and experimental design to assess the effect of traditional fermentation. Data were analyzed using descriptives, univariate and multivariate analysis.

Findings

Although gari is rich in mineral nutrients (total calcium 3.9 ± 0.1 g/kg, copper 5.5 ± 0.02 mg/kg, iron 97.1 ± 5.8 mg/kg, potassium 9.1 ± 0.29 g/kg and zinc 3.4 ± 0.11 mg/kg), the significant levels of heavy metals (total arsenic 1.2 ± 0.01, cadmium 2.5 ± 0.04, lead 1.7 ± 0.01, mercury 2.8 ± 0.01 and tin 1.7 ± 0.02 mg/kg) present are a cause for concern. The results further suggested that traditional fermentation has reductive effects on some heavy metals and stabilizing or concentrating effects on mineral nutrients.

Research limitations/implications

This paper provides evidence that traditional fermentation may have exploitable differential effects on heavy metal contaminants and mineral nutrients that should be further explored.

Practical implications

Thise study reports fermentation implications for mitigating food with high heavy metal contaminants with minimal nutrient loss.

Originality/value

This study fulfills an identified need to optimize traditional fermentation to ensure food safety and nutrient security.

Details

Nutrition & Food Science , vol. 54 no. 1
Type: Research Article
ISSN: 0034-6659

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