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Table 2 Results of the in vitro chromosome aberration test with short-term treatment and without metabolic activation

From: Genotoxicity test of eight natural color additives in the Korean market

Test substance

Conc. (μg/ml)

Obs. Cell No.

S9 mix

Trt-Rec Time (hrs)

Number of chromosomal aberrations

Numerical aberrations

Structural aberrations

Pol

Endo

Total

(%)

ctb

cte

csb

cse

Total

(%)

Negative Control

200

–

6–18

0

0

0

(0)

1

0

0

0

1

(0.5)

Gardenia Red

313

0

0

0

(0)

0

0

0

0

0

(0)

625

0

0

0

(0)

0

0

0

0

0

(0)

1250

0

0

0

(0)

1

0

0

0

1

(0.5)

2500

0

0

0

(0)

1

0

0

0

1

(0.5)

5000

0

0

0

(0)

2

0

0

0

2

(1)

Gardenia Yellow

313

0

0

0

(0)

2

0

0

0

2

(1)

625

0

0

0

(0)

1

0

0

0

1

(0.5)

1250

0

0

0

(0)

0

0

0

0

0

(0)

2500

0

0

0

(0)

0

0

0

0

0

(0)

5000

0

0

0

(0)

0

0

0

0

0

(0)

Gardenia Blue

313

0

0

0

(0)

0

0

0

0

0

(0)

625

0

0

0

(0)

2

0

0

0

2

(1)

1250

0

0

0

(0)

0

0

0

0

0

(0)

2500

0

0

0

(0)

0

0

0

0

0

(0)

Cochineal Extract

313

0

0

0

(0)

0

0

0

0

0

(0)

625

0

0

0

(0)

1

0

0

0

1

(0.5)

1250

0

0

0

(0)

1

0

0

0

1

(0.5)

2500

0

0

0

(0)

0

0

0

0

0

(0)

5000

0

0

0

(0)

1

0

0

0

1

(0.5)

Lac Color

313

0

0

0

(0)

0

0

0

0

0

(0)

625

0

0

0

(0)

1

0

0

0

1

(0.5)

1250

0

0

0

(0)

0

0

0

0

0

(0)

2500

0

0

0

(0)

0

0

0

0

0

(0)

Beet Red

313

0

0

0

(0)

3

0

0

0

3

(1.5)

625

0

1

1

(0.5)

2

0

0

0

2

(1.0)

1250

0

0

0

(0)

1

0

0

0

1

(0.5)

2500

0

0

0

(0)

2

0

0

0

2

(1)

5000

0

0

0

(0)

1

0

0

0

1

(0.5)

Curcuma extract

78

0

0

0

(0)

4

0

0

0

4

(2)

156

0

0

0

(0)

3

0

0

0

3

(1.5)

313

0

0

0

(0)

8

0

0

0

8*

(4)

Monascus Red

78

0

0

0

(0)

1

0

0

0

1

(0.5)

156

0

0

0

(0)

1

0

1

0

2

(1)

313

1

0

1

(0.5)

6

0

2

0

8*

(4.0)

Positive controla

0

0

0

(0)

21

9

6

0

36*

(18)

  1. Negative control: sterile distilled water
  2. Positive control: 4-nitroquinoline-N-oxide 1.0 μg/ml
  3. Trt-Rec Time treatment-recovery times
  4. Pol polyploids, Endo endoreduplication, ctb chromatid breakage, cte chromatid exchange, csb chromosome breakage, cse chromosome exchange
  5. *: Significantly different from the negative control by Fisher’s exact test at p < 0.05