2. Differences in medicinal value. After steaming and drying in the sun, the volatile oil contained in fresh tangerine peel can be released, which can reduce the irritating components of the volatile oil, but the main components of tangerine peel are hesperidin, neohesperidin, hesperidin, naringin and naringin. After steaming and drying, these contents are reduced, and the original health care substances of dried tangerine peel are lost, and the effect is not as good as that of normal drying.
But steaming is a processing method of Chinese herbal medicine, in order to give full play to the efficacy of Chinese herbal medicine. At this time, the cooked tangerine peel has no volatile oil and no irritation, and is mostly used for Chinese medicine treatment.
3. The storage time is different. After the dried tangerine peel is bagged and preserved, the traditional natural dried tangerine peel has good color and fragrance, and can be dried repeatedly. The longer the preservation time, the higher the medicinal value. The preserved tangerine peel can also be used as a collection, which has certain collection value.
However, the storage time of steamed tangerine peel is not so long, usually about 2-3 years.
4. After repeated cooking, the taste of dried tangerine peel is different, the spicy and bitter feeling decreases, the original flavor also decreases, and the natural flavor of dried tangerine peel is lost; However, the dried tangerine peel in the sun retains its original fragrance, which will become more and more fragrant as time goes by, and then it will be transformed into old fragrance and medicinal fragrance.
If it is used for soaking in water, the steamed tangerine peel tastes tasteless, has no layering, and has insufficient foam resistance; But without steaming, the bitter taste will gradually become mellow, sweet and refreshing, comfortable after drinking, and the tail water is still sweet and delicious.
2 Why should dried tangerine peel be steamed three times and dried three times to improve its medicinal properties?
The method of three steaming and three drying belongs to the processing method of traditional Chinese medicine, that is, the orange peel is put into a steamer, steamed thoroughly in a pot, dried in the sun and repeated three times. The purpose of this is to correct the deviation of medicinal materials or increase the medicinal components, so as to give full play to the medicinal effects of medicinal materials. The dried tangerine peel made by three steaming and three drying loses its good characteristics because of its high steam heat, but the steamed tangerine peel is also very fragrant and can be eaten after being put in the jar 1 year.
However, the content of flavonoids in steamed tangerine peel changed obviously due to high temperature heating, which was lower than that in natural tangerine peel. Moreover, the dryness and strength of steamed dried tangerine peel will be reduced, but due to the huge heat of steam, the volatile oil of dried tangerine peel will quickly precipitate and its active substances will be killed, which is not conducive to the later aging of dried tangerine peel.
Can ordinary orange peel be used as dried tangerine peel? Yes, but it's not the same as tangerine peel.
Fresh orange peel is not equal to dried tangerine peel. Not only that, not all fresh orange peels can be made into dried tangerine peel, but only mature orange peels can be made into dried tangerine peel, and dried tangerine peel cannot be used as medicine. Although it has a certain effect of regulating qi and strengthening stomach, its efficacy is far from that of real dried tangerine peel.
4 What is the best orange peel for dried tangerine peel? According to the dictionary of traditional Chinese medicine, oranges are rutaceae plants, and dried and aged oranges can be divided into the following categories:
1, Chazhi Citrus (Xinhui Citrus)
2. Mandarin orange (citrus in Jiangsu and Zhejiang)
3. Sihui Citrus (Guangdong and Guangxi)
4. Ponkan (Fujian, Guangdong)
5. Banana oranges (Guangdong, Fujian and Taiwan Province provinces).
This shows that the above five kinds of dried tangerine peel can be counted as "dried tangerine peel" after drying and aging. However, not all dried tangerines can be made into dried tangerines. Five kinds of orange peels that can be aged need to be graded according to different varieties, and the efficacy after aging is very different. For example, the difference between ordinary Chenpi and Xinhui Chenpi (GuangChenpi) is Wan Li, and Xinhui Chenpi is much higher than ordinary Chenpi in both efficacy and price. The key point is to choose: ripe oranges, oranges with thin skin, and varieties that are easy to preserve after drying.