The reason why broccoli turns yellow:

Long-term non-consumption will lead to the loss of water, and because of the long-term preservation of broccoli exposure to sunlight, so some chlorophyll can not be generated, so the phenomenon of yellowing.

The shelf life of broccoli is generally about five days after purchase, but if it is left exposed to the air, it will be fresh for only three days. Put it in the refrigerator its shelf life is only ten days time, so buy back the broccoli must be dealt with as soon as possible or cooking to eat.

There is no special treatment for broccoli after it turns yellow. Only broccoli does not yellow preservation way.

Expanded:

Broccoli does not yellow preservation:

1, blanching preservation: boil water in the pot and add an appropriate amount of salt, then cleaned broccoli to join the boiling water blanching after fishing out to join the cold water after soaking and then draining, and then the drained broccoli in order to add to the preservation bag into the refrigerator for preservation, it can be very good to maintain the broccoli does not change color, but to be eaten as soon as possible.

2, refrigerator preservation: refrigerator preservation is most of the ingredients will be used, broccoli is no exception, if you want to broccoli does not deteriorate can be added to the fresh broccoli in a plastic bag and then into the refrigerator, so that to keep at least three days to ensure that broccoli does not change color.

3, paper wrapping preservation: use relatively clean newspaper or paper to wrap up the broccoli, and then to the broccoli evenly sprayed with water, evenly damp can be saved for about three days, but also to eat as soon as possible to prevent deterioration.

4, cool and dry preservation: the timeliness of this preservation method is very short, can only maintain the broccoli one day without yellowing. First of all, the broccoli will be cleaned off the dead leaves and then placed in a ventilated cool place, preferably the corner of the balcony, the dry climate can make the broccoli the next day to eat will not be yellow.