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Table 2 Variations in concentration of trace metal in mg/kg wet weight of raw cassava, dried chips, and HQCF

From: Variations in trace metal and aflatoxin content during processing of High Quality Cassava Flour (HQCF)

Sample

Cu

Fe

As

Hg

Pb

Zn

Raw cassava

2.05 ± 0.18d

14.59 ± 0.23ab

ND*

<0.01a

ND*

6.49 ± 0.06c

Dried chips

1.74 ± 0.26cd

16.37 ± 0.33c

ND

<0.01a

ND

7.44 ± 0.06c

SDC-HQCF

1.36 ± 0.11ac

14.75 ± 0.65a

ND

<0.01a

ND

9.28 ± 0.12a

MDC-HQCF

1.15 ± 0.21a

11.32 ± 0.01a

ND

<0.01a

ND

5.50 ± 0.55b

  1. *ND means not detected. Limit of detection for As = 0.02 mg/kg and Pb = 0.1 mg/kg
  2. Results are presented as means ± standard deviation. Superscripts to figures in the same column implies significant or insignificant differences at p ≤ 0.05 (ANOVA, Duncan test)