Shidou, Department of Hematology, Shanxi Provincial Hospital of Traditional Chinese Medicine

It’s spring now, and there’s a season-only food that smells and tastes very unique, and it’s toon.

Toona sinensis is cool in nature, bitter in taste, and enters the lung, stomach, and large intestine meridians.

Compendium of Materia Medica records: Toona sinensis has the effects of clearing away heat and dampness, diuresis and detoxification, and can clear heat and detoxify, astringe the intestines, stop bleeding, and invigorate the spleen. Stomach, insecticide and solid essence.

However, toona sinensis contains nitrates and nitrites, which are much higher than that of ordinary vegetables, which are easy to generate nitrosamine carcinogens, so eating Toon is a safety hazard.

Eating toon is a safety hazard and needs to be Follow these guidelines

Choose the tenderest toon sprouts

The content of nitrate in the early stage of germination of Toona sinensis was low. on the rise. The more tender the toon buds, the less nitrate in them, and the less nitrite will be produced in future storage.

Choose the freshest toon sprouts strong>

Freshly picked buds from the tree are safe to eat immediately, while buds bought from the market have already gone through During transportation, the content of nitrite will increase significantly. If it has reached the time when the leaves fall off when they are touched, a large amount of nitrite is bound to be produced.

Blanching to remove nitrates and nitrous acid Salt

Blank in boiling water for about 1 minute to remove more than two-thirds of nitrite and nitrate, At the same time, the green color of the toon can be better preserved.

Blank before freezing

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Research data shows that blanching for 50 seconds before freezing not only greatly improves safety, but also improves vitamin C save.

Recommendation

Eat toon with foods rich in vitamin C.

Vitamin C helps block the formation of carcinogenic nitrosamines, helping to avoid the hidden dangers of nitrite.

Pick Toon

Watch the seasons

Actually, toon sprouts can be eaten from early spring to the beginning of summer, but the best time to eat toon sprouts is only before Guyu.

Long and Short span>

Buy short toon as much as possible, this is more tender, and the longer the toon, the older it is.

Select Thickness span>

When selecting toon buds, we must look at the thickness of the toon buds. Toon with thick stems means that it is a newly grown bud. Very fresh, do not choose thin, thin is old toon.

Choose fresh span>

The fresh and tender toon leaves are brown and red, and are not easy to be pulled off; if the toon leaves are green and fall off when touched, it means that they are old .

Smell span>

The fresher the toon, the stronger the fragrance.

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Special reminder

Toon should not be eaten with cucumber, cauliflower, and milk !Otherwise it will affect the absorption of nutrients.