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Glucose content of fish intestine
| Sample | Color and appearance of ppt or solution | Glucose content |
|---|---|---|
| Negative control (1× PBS) | Blue transparent solution | 0 |
| Positive control (1% glucose solution) | Brick red ppt | 1% (wt/vol) |
| Negative working control (fish gut without glucose feeding) | Blue cloudy solution | 0 |
| Fish gut with glucose feeding for: | ||
| 6 h | Blue-green solution | 0–2 mg/gut |
| 12 h | Green ppt | 2–5 mg/gut |
| 24 h | Green to yellow-green ppt | 5–9 mg/gut |
