An oregano compound coating could keep strawberries fresher longer
Food Forest
The strawberries that turn mushy in your fridge within two days could last noticeably longer with a natural coating instead of synthetic preservatives.
Strawberries spoil fast because their skin is thin and they lose moisture and firmness quickly after picking. Scientists tested spraying them with a mix of chitosan (a natural substance from shellfish shells) and carvacrol (the compound that gives oregano its smell) before harvest, then used a mathematical modeling technique to figure out exactly how much carvacrol worked best. The result points toward a plant-based, non-toxic way to extend how long strawberries stay fresh on the shelf or in your kitchen.
Key Findings
1
Response surface methodology (RSM) was used to optimize carvacrol concentration within the chitosan coating for maximum postharvest quality benefit.
2
The chitosan-carvacrol composite treatment was applied preharvest and evaluated for its effect on strawberry quality during storage.
3
The study identifies an optimal carvacrol concentration that balances preservation effectiveness within the natural, chitosan-based coating system.
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Technical Summary
Researchers coated strawberries with a chitosan and carvacrol (oregano oil compound) spray and used statistical modeling to find the ideal concentration for keeping fruit fresh longer in storage.
Oregano is a species of flowering plant in the mint family, Lamiaceae. It was native to the Mediterranean region, but widely naturalised elsewhere in the temperate Northern Hemisphere.
