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Table 4 Results of the in vitro chromosome aberration test with continuous 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

–

24–0

0

0

0

(0)

2

0

0

0

2

(1)

Gardenia Red

313

0

0

0

(0)

2

1

0

0

3

(1.5)

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)

5000

0

0

0

(0)

1

0

0

0

1

(0.5)

Gardenia Yellow

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)

0

0

0

0

0

(0)

2500

0

0

0

(0)

1

0

0

0

1

(0.5)

5000

0

0

0

(0)

1

0

0

0

1

(0.5)

Gardenia Blue

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)

0

0

0

0

0

(0)

Cochineal Extract

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)

0

0

0

0

0

(0)

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)

1

0

0

0

1

(0.5)

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)

2

0

0

0

2

(1)

Beet Red

313

0

0

0

(0)

3

0

0

0

3

(1.5)

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

1

0

0

2

(1)

5000

0

0

0

(0)

1

0

0

0

1

(0.5)

Curcuma extract

78

0

0

0

(0)

1

0

0

0

1

(0.5)

156

0

0

0

(0)

4

0

0

0

4

(2)

313

0

0

0

(0)

7

0

1

0

8

(4)

Monascus Red

78

0

0

0

(0)

3

0

1

0

4

(2)

156

0

0

0

(0)

2

0

0

0

2

(1)

313

0

1

1

(0.5)

7

0

2

0

9

(4.5)

Positive control

1

1

2

(1)

29

0

1

2

32*

(16)

  1. Negative control: sterile distilled water
  2. Positive control: 4-nitroquinoline-N-oxide 0.5 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