| Shelf life of wheat bread samples until the appearance of ropiness signs, hours | Control | Fat-soluble extract of rosehip fruits | Fat-soluble extract of sea buckthorn fruits | Fat-soluble extract of hawthorn fruits | |||
| 1% | 2% | 1% | 2% | 1% | 2% | ||
| 24 | − | − | − | − | − | − | − |
| 48 | − | − | − | − | − | − | − |
| 72 | + | − | − | − | − | − | − |
| 96 | ++ | + | + | + | − | + | + |
| 120 | +++ | +++ | +++ | +++ | + | +++ | +++ |
| 144 | +++ | +++ | +++ | +++ | + | +++ | +++ |