Table 1.
Reference method results of quality parameters in tomato paste samples from 4 different companies at the 2015, 2016, 2017, and 2019 production seasons.
| Company | Year | Number of Samples | NTSS | pH | Bostwick | TA | Serum Viscosity c | Lycopene | Glucose | Fructose | Ascorbic Acid | Citric Acid | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 2015 | 120 | range | 25.6–36.0 | 4.3–4.5 | 2.5–10.8 | 1.0–1.9 | 2.3–2.6 | |||||
| Avg a ± std b | 30.7 ± 2.8 | 4.4 ± 0.0 | 5.1 ± 2.0 | 1.5 ± 0.2 | 2.4 ± 0.1 | ||||||||
| 2016 | 150 | range | 25.8–37.1 | 4.2–4.4 | 1.6–9.1 | 1.1–2.0 | 2.1–2.9 | 70.3–116.6 | 75.9–117.6 | 56.8–97.0 | 6.3–10.6 | ||
| avg ± std | 30.1 ± 2.8 | 4.3 ± 0.1 | 4.1 ± 1.9 | 1.5 ± 0.2 | 2.6 ± 0.2 | 93.3 ± 10.3 | 96.4 ± 9.6 | 77.6 ± 8.9 | 8.4 ± 0.9 | ||||
| 2017 | 196 | range | 25.4–37.0 | 4.2–4.5 | 0.8–11.9 | 1.0–1.8 | 2.2–2.8 | 74.1–128.2 | 75.2–130.5 | 49.0–110.7 | 6.4–11.7 | ||
| avg ± std | 28.6 ± 2.4 | 4.4 ± 0.0 | 3.5 ± 2.2 | 1.3 ± 0.2 | 2.5 ± 0.1 | 92.0 ± 11.5 | 92.3 ± 11.0 | 79.4 ± 10.9 | 8.4 ± 0.9 | ||||
| 2019 | 87 | range | 25.7–38.0 | 4.2–4.5 | 1.5–9.2 | 1.1–2.1 | 2.3–2.8 | 400.6–869.1 | |||||
| avg ± std | 31.1 ± 2.8 | 4.4 ± 0.1 | 5.4 ± 2.1 | 1.4 ± 0.2 | 2.5 ± 0.2 | 644.5 ± 112.1 | |||||||
| General | 553 | range | 25.4–38.0 | 4.2–4.5 | 0.8–11.9 | 1.0–2.1 | 2.1–2.9 | 70.3–128.2 | 75.2–130.5 | 49.0–110.7 | 6.3–11.7 | ||
| avg ± std | 29.8 ± 2.9 | 4.4 ± 0.1 | 4.3 ± 2.2 | 1.4 ± 0.2 | 2.5 ± 0.1 | 92.6 ± 11.0 | 94.1 ± 10.6 | 78.7 ± 10.1 | 8.4 ± 0.9 | ||||
| B | 2016 | 79 | range | 28.5–37.5 | 4.1–4.5 | 4.0–7.6 | 1.3 -2.2 | 1.9–2.4 | 88.1–120.1 | 92.1–121.4 | 59.7–104.8 | 6.8–10.4 | |
| avg ± std | 32.2 ± 2.9 | 4.3 ± 0.1 | 5.6–1.2 | 1.6 ± 0.3 | 2.1 ± 0.2 | 104.0 ± 9.0 | 104.9 ± 7.8 | 75.6 ± 8.9 | 8.4 ± 0.9 | ||||
| 2017 | 116 | range | 28.0–36.2 | 4.1–4.5 | 1.1–6.4 | 1.3 -1.9 | 1.8–2.4 | 87.0–128.0 | 94.0–128.8 | 55.8–98.4 | 5.9–10.0 | ||
| avg ± std | 30.6 ± 1.2 | 4.4 ± 0.1 | 4.8 ± 1.1 | 1.6 ± 0.1 | 2.1 ± 0.2 | 102.4 ± 6.0 | 101 ± 5.2 | 78.8 ± 11.1 | 8.3 ± 0.7 | ||||
| 2019 | 103 | range | 24.1–38.1 | 4.2–4.5 | 1.2–8.5 | 1.0–1.9 | 1.8–2.6 | ||||||
| avg ± std | 31.6 ± 4.3 | 4.4 ± 0.1 | 4.3 ± 2.1 | 1.5 ± 0.2 | 2.2 ± 0.2 | ||||||||
| General | 298 | range | 24.1–38.1 | 4.1–4.5 | 1.1–8.5 | 1.0–2.2 | 1.8–2.6 | 87.0–128.0 | 92.1–128.8 | 55.8–104.8 | 5.9–10.4 | ||
| avg ± std | 31.5 ± 3.0 | 4.3 ± 0.1 | 4.8 ± 1.6 | 1.6 ± 0.2 | 2.1 ± 0.2 | 102.0 ± 7.4 | 102.6 ± 6.6 | 77.5 ± 10.4 | 8.3 ± 0.8 | ||||
| C | 2016 | 222 | range | 27.8–37.5 | 4.1–4.5 | 2.3–7.9 | 1.5–2.2 | 1.9–2.5 | 81.2–122.6 | 89.2–128.0 | 32.6–100.7 | 7.8–9.6 | |
| avg ± std | 31.0 ± 1.9 | 4.3 ± 0.1 | 4.4 ± 1.3 | 1.8 ± 0.2 | 2.2 ± 0.2 | 95.9 ± 8.8 | 101.0 ± 7.9 | 65.5 ± 12.8 | 8.6 ± 0.4 | ||||
| 2017 | 290 | range | 26.0–36.5 | 4.1–4.5 | 0.8–7.1 | 1.3–2.4 | 1.9–2.7 | 71.0–122.9 | 77.8–123.8 | 13.5–109.8 | 7.1–11.2 | ||
| avg ± std | 29.1 ± 2.8 | 4.4 ± 0.1 | 3.1 ± 1.6 | 1.7 ± 0.2 | 2.4 ± 0.2 | 90.6 ± 12.6 | 94.4 ± 12.1 | 55.0 ± 19.9 | 8.5 ± 1.1 | ||||
| 2019 | 110 | range | 26.1–31.6 | 4.2–4.5 | 1.0–4.9 | 1.3–2.3 | 1.9–2.7 | 614.3–829.3 | |||||
| avg ± std | 29.2 ± 2.1 | 4.4 ± 0.1 | 3.0 ± 1.2 | 1.7 ± 0.2 | 2.3 ± 0.2 | 690.9 ± 43.6 | |||||||
| General | 622 | range | 26.0–37.5 | 4.1–4.5 | 0.8–7.9 | 1.3–2.4 | 1.9–2.7 | 71.0–127.9 | 77.8–128.0 | 13.5–109.8 | 7.1–11.2 | ||
| avg ± std | 29.8 ± 2.6 | 4.4 ± 0.1 | 3.5 ± 1.6 | 1.8 ± 0.2 | 2.3 ± 0.2 | 92.9 ± 11.4 | 97.3 ± 10.9 | 59.6 ± 17.9 | 8.6 ± 0.8 | ||||
| D | 2015 | 47 | range | 25.0–26.6 | 4.2–4.4 | 1.1–2.4 | 1.3–1.5 | 2.6–2.7 | |||||
| avg ± std | 25.9 ± 0.3 | 4.3 ± 0.0 | 1.8 ± 0.4 | 1.4 ± 0.0 | 2.7 ± 0.0 | ||||||||
| 2016 | 48 | range | 25.3–26.5 | 4.4–4.5 | 2.3–2.9 | 1.3–1.4 | 2.9–3.0 | 76.9–84.6 | 78.1–89.0 | 43.9–63.4 | 5.9–7.1 | ||
| avg ± std | 26 ± 0.3 | 4.4 ±0.0 | 2.6 ± 0.2 | 1.4 ± 0.0 | 3.0 ± 0.0 | 80.7 ± 1.8 | 83.5 ± 2.7 | 50.8 ± 5.3 | 6.5 ± 0.3 | ||||
| 2017 | 203 | range | 25.1–28.5 | 4.3–4.5 | 1.0–2.9 | 1.2–1.6 | 2.4–2.9 | 67.5–99.3 | 74.7–100.6 | 12.1–72.2 | 6.6–8.8 | ||
| avg ± std | 26.2 ± 0.8 | 4.4 ± 0.0 | 1.9 ± 0.4 | 1.4 ± 0.1 | 2.7 ± 0.1 | 80.7 ± 6.9 | 82.4 ± 3.9 | 38.0 ± 13.0 | 7.4 ± 0.4 | ||||
| 2019 | 72 | range | 25.3–28.3 | 4.3–4.5 | 1.4–2.2 | 1.3–1.5 | 2.5–2.9 | ||||||
| avg ± std | 26.5 ± 1.0 | 4.4 ± 0.0 | 1.9 ± 0.2 | 1.4 ± 0.1 | 2.7 ± 0.1 | ||||||||
| General | 370 | range | 25.0–28.5 | 4.2–4.5 | 1.0–2.9 | 1.2–1.6 | 2.4–3.0 | 67.5–104.3 | 74.7–100.6 | 12.1–72.2 | 5.9–8.8 | ||
| avg ± std | 26.2 ± 0.8 | 4.4 ± 0.0 | 2.0 ± 0.5 | 1.4 ± 0.1 | 2.7 ± 0.1 | 80.7 ± 6.2 | 82.6 ± 3.7 | 40.4 ± 12.9 | 7.2 ± 0.5 |
a mean. b standard deviation. c The unit of the serum viscosity results is log cSt. Lycopene analysis was only carried out in 2019 for two companies. Sugar and acid analyses with high-performance liquid chromatography (HPLC) were only carried out in 2016 and 2017. Each test was carried out in duplicate. NTSS: natural tomato soluble solids, TA: titratable acidity.