Researchers from Hainan University have discovered why storing mangoes at 12°C helps keep the fruit fresh for a much longer period without causing cold damage.

The study, published in the journal Tropical Plants, found that cooler storage temperatures slow ripening, protect fruit structure, and strengthen the mango’s natural antioxidant defence systems.

Cooler storage slows mango ripening

Mangoes are among the world’s most popular tropical fruits, but they continue ripening rapidly after harvest, making them highly vulnerable to spoilage during storage and transport.

Researchers compared mangoes stored at 12°C with those stored at 30°C over 24 days.

The study found that mangoes kept at warmer temperatures ripened and yellowed much faster, while fruit stored at 12°C retained colour, firmness, and flavour for longer periods.

Less weight loss and better texture

Scientists observed that mangoes stored at 30°C lost over 17 per cent of their weight, while those kept at 12°C lost less than 4 per cent.

The cooler-stored mangoes also maintained stronger cell walls and preserved internal starch granules, preventing early softening and collapse.

Experts say maintaining acidity and firmness helps preserve overall fruit quality and shelf life.

Antioxidants played major role

The research showed that cooler temperatures reduced oxidative stress inside the fruit by limiting harmful reactive oxygen species (ROS).

Mangoes stored at 12°C retained higher levels of vitamin C, flavonoids, and phenolic compounds, all of which support natural antioxidant activity.

Researchers also identified increased activity in genes linked to the fruit’s protective defence mechanisms.

Major boost for mango transport industry

The findings could significantly improve cold-chain transportation systems for mangoes and other tropical fruits.

Experts believe maintaining storage temperatures around 12°C may help reduce food waste, extend shelf life, and allow mangoes to be transported over longer distances while preserving quality.

The study may also benefit farmers, exporters, and retailers by improving fruit preservation during summer supply chains