1, by season
(1) Winter bamboo shoots: refers to bamboo shoots that have not yet been unearthed (this bamboo shoot grows on the bamboo whip and has not yet exposed the soil surface, so it can only be excavated by experienced bamboo farmers), and it will be listed in October of the lunar calendar.
(2) Spring bamboo shoots: refers to bamboo shoots that broke ground before and after beginning of spring.
(3) Hairy bamboo shoots: from mid-March to late April;
(4) Bamboo shoots: Generally, the shoot emergence period is from mid-May to mid-June.
2. Differences in appearance characteristics
(1) Winter bamboo shoots are tender stems of Phyllostachys pubescens born underground in winter, which have not yet been unearthed. They are characterized by two sharp ends. The meat color is milky white and the shell is thin and tender.
(2) Spring bamboo shoots are perennial evergreen herbs, and the edible parts are newborn, tender and fat, short and strong buds or whips.
(3) Phyllostachys pubescens, the bamboo sheath of this bamboo shoot is yellow-brown to brown-purple, densely covered with brown bristles and dark brown spots and patches. The bamboo shoot is larger than the winter bamboo shoot, and the bamboo shoot is loosely wrapped with bamboo shoot meat, and the bamboo shoot meat is light yellow.
(4) Bamboo shoots, whose milk is light yellow or yellow with dark brown oily spots. The edible part is newborn, tender and fat, short and strong buds or whips.
3, the difference of medicinal value
(1) Winter bamboo shoots are a kind of delicious food with nutritional value and medical function. They are rich in protein, amino acids, vitamins, trace elements such as calcium, phosphorus and iron, and rich in cellulose, which can promote intestinal peristalsis.
(2) Bamboo shoots are sweet in taste and slightly cold in nature, and enter the stomach and lung meridians; It has effects in stimulating appetite, invigorating spleen, relaxing bowels, promoting defecation, removing phlegm from diaphragm, eliminating greasy food, and relieving alcoholism.
(3) Spring bamboo shoots are rich in water, plant protein, calcium, phosphorus, iron and other essential nutrients and trace elements, especially cellulose, which can help digestion and prevent constipation.
(4) Phyllostachys pubescens has the effects of resolving phlegm, relieving bloating and penetrating rash. Indications for indigestion, abdominal distension and acne rash.
Extended data
The main excellent bamboo species for bamboo shoots in China are Phyllostachys pubescens, Phyllostachys pubescens, Dendrocalamus latiflorus and Dendrocalamus latiflorus in the middle and lower reaches of the Yangtze River, Fujian, Taiwan Province and other places. Bamboo shoots are the young shoots of bamboo. As the name implies, spring is "spring bamboo shoots"; The harvest in summer and autumn is called "summer bamboo shoots"; What is collected in the soil in winter is "winter bamboo shoots".
Bamboo shoots have been regarded as "treasures in Chinese cuisine" since ancient times. Bamboo shoots are rich in protein, amino acids, fats, sugars, calcium, phosphorus, iron, carotene, vitamin B 1, B2, etc. Traditional Chinese medicine considers bamboo shoots sweet, slightly cold and non-toxic. Medically, it has the effects of clearing away heat and resolving phlegm, invigorating qi and regulating stomach, treating thirst, benefiting waterways, benefiting diaphragm and refreshing stomach.