Table 4.
Concentration (mg/kg) of stevioside, rebaudioside C, rebaudioside F, rebaudioside A, and rebaudioside D in processed foods
| Compound | Food category | Total no. of sample | Positive no. of sample | Range | Total Averagea (mg/kg) | Positive averageb (mg/kg) | |
|---|---|---|---|---|---|---|---|
| Min (mg/kg) | Max (mg/kg) | ||||||
| Stevioside | Dried fish/shellfish fillet products | 10 | 10 | 5.15 ± 0.23 | 25.39 ± 0.20 | 11.10 ± 5.34 | 11.10 ± 5.34 |
| Fruit/vegetable beverages | 26 | 19 | N.D.c | 148.75 ± 2.06 | 15.15 ± 28.23 | 19.93 ± 31.36 | |
| Other beverages | 15 | 8 | N.D | 24.46 ± 1.05 | 6.38 ± 8.09 | 11.96 ± 7.47 | |
| Pickled food products | 10 | 8 | N.D | 677.05 ± 4.96 | 99.55 ± 196.84 | 124.44 ± 212.93 | |
| Sauces | 12 | 8 | N.D | 76.66 ± 3.37 | 18.05 ± 23.27 | 27.08 ± 23.83 | |
| Soju | 10 | 9 | N.D | 10.25 ± 0.13 | 5.96 ± 2.61 | 6.63 ± 1.79 | |
| Teas | 11 | 3 | N.D | 7.22 ± 0.24 | 1.42 ± 2.74 | 5.20 ± 2.81 | |
| Rebaudioside C | Dried fish/shellfish fillet products | 10 | 10 | 1.35 ± 0.05 | 31.00 ± 0.47 | 7.89 ± 8.89 | 7.89 ± 8.89 |
| Fruit/vegetable beverages | 26 | 11 | N.D | 498.04 ± 0.89 | 21.22 ± 95.43 | 50.15 ± 141.68 | |
| Other beverages | 15 | 7 | N.D | 40.36 ± 1.09 | 3.88 ± 9.94 | 8.32 ± 13.22 | |
| Pickled food products | 10 | 7 | N.D | 153.46 ± 2.33 | 23.43 ± 44.70 | 33.48 ± 50.18 | |
| Sauces | 12 | 7 | N.D | 35.72 ± 0.55 | 9.66 ± 10.55 | 16.56 ± 8.76 | |
| Soju | 10 | 5 | N.D | 5.14 ± 0.01 | 1.75 ± 2.23 | 3.49 ± 1.95 | |
| Teas | 11 | 5 | N.D | 42.10 ± 0.34 | 4.46 ± 11.94 | 9.81 ± 16.15 | |
| Rebaudioside F | Dried fish/shellfish fillet products | 10 | 1 | N.D | 1.28 ± 0.04 | 0.13 ± 0.39 | 1.28 ± 0.00 |
| Fruit/vegetable beverages | 26 | 3 | N.D | 8.42 ± 0.15 | 0.54 ± 1.75 | 4.69 ± 2.64 | |
| Other beverages | 15 | 2 | N.D | 1.47 ± 0.03 | 0.16 ± 0.42 | 1.21 ± 0.26 | |
| Pickled food products | 10 | 4 | N.D | 24.45 ± 0.18 | 3.87 ± 7.21 | 9.67 ± 8.60 | |
| Sauces | 12 | 5 | N.D | 12.03 ± 0.07 | 2.50 ± 3.90 | 5.99 ± 3.94 | |
| Soju | 10 | 0 | N.D | N.D | N.D | N.D | |
| Teas | 11 | 3 | N.D | 31.98 ± 0.39 | 3.81 ± 9.16 | 13.98 ± 12.86 | |
| Rebaudioside A | Dried fish/shellfish fillet products | 10 | 10 | 2.26 ± 0.08 | 12.45 ± 0.30 | 5.97 ± 3.05 | 5.97 ± 3.05 |
| Fruit/vegetable beverages | 26 | 25 | N.D | 137.34 ± 4.90 | 49.15 ± 34.52 | 51.11 ± 33.75 | |
| Other beverages | 15 | 15 | 9.82 ± 1.80 | 126.82 ± 2.57 | 48.45 ± 37.06 | 48.45 ± 37.06 | |
| Pickled food products | 10 | 8 | N.D | 799.90 ± 4.68 | 122.97 ± 236.54 | 153.71 ± 255.37 | |
| Sauces | 12 | 12 | 3.25 ± 0.10 | 177.95 ± 2.91 | 64.85 ± 58.40 | 64.85 ± 58.40 | |
| Soju | 10 | 10 | 14.22 ± 0.14 | 35.44 ± 0.05 | 25.97 ± 7.82 | 25.97 ± 7.82 | |
| Teas | 11 | 11 | 1.28 ± 0.29 | 97.41 ± 0.72 | 21.62 ± 30.52 | 21.62 ± 30.52 | |
| Rebaudioside D | Dried fish/shellfish fillet products | 10 | 8 | N.D | 42.13 ± 0.73 | 15.96 ± 12.19 | 19.95 ± 10.31 |
| Fruit/vegetable beverages | 26 | 0 | N.D | N.D | N.D | N.D | |
| Other beverages | 15 | 0 | N.D | N.D | N.D | N.D | |
| Pickled food products | 10 | 1 | N.D | 4.85 ± 0.11 | 0.48 ± 1.45 | 4.85 ± 0.00 | |
| Sauces | 12 | 2 | N.D | 11.40 ± 0.27 | 1.54 ± 3.56 | 9.24 ± 2.15 | |
| Soju | 10 | 0 | N.D | N.D | N.D | N.D | |
| Teas | 11 | 0 | N.D | N.D | N.D | N.D | |
| Totald (as steviol) | Dried fish/shellfish fillet products | 10 | 10 | 6.17 ± 0.14 | 23.61 ± 0.49 | 13.77 ± 6.30 | 13.77 ± 6.30 |
| Fruit/vegetable beverages | 26 | 26 | 0.69 ± 0.03 | 202.01 ± 0.39 | 29.44 ± 39.91 | 29.44 ± 39.91 | |
| Other beverages | 15 | 15 | 3.24 ± 0.05 | 45.68 ± 0.83 | 19.92 ± 14.00 | 19.92 ± 14.00 | |
| Pickled food products | 10 | 9 | N.D | 595.28 ± 2.65 | 89.82 ± 173.84 | 99.80 ± 180.51 | |
| Sauces | 12 | 12 | 2.08 ± 0.04 | 64.59 ± 0.90 | 33.19 ± 19.90 | 33.19 ± 19.90 | |
| Soju | 10 | 10 | 8.64 ± 0.20 | 15.62 ± 0.04 | 11.55 ± 2.85 | 11.55 ± 2.85 | |
| Teas | 11 | 11 | 0.81 ± 0.01 | 35.01 ± 0.30 | 10.51 ± 12.61 | 10.51 ± 12.61 | |
aAverage and standard deviation of all samples
bAverage and standard deviation of detected samples
cNot detected, < LOQ
dThe total amount of steviol glycosides was calculated as steviol by multiplying the amount of each steviol glycoside by a conversion factor
*All experiments were carried out in three replicates