Gastrodia harvest and processing technology

Gastrodia elata is a valuable Chinese herbal medicine, and doing a good job of harvesting and processing gastrodia elata is the most critical link in improving the quality of commercial gastrodin. First, harvest: 1, harvest time. Gastrodia harvest time is generally in late autumn or early winter (ie, October-November). At this time, Tianma has stopped growing. Harvesting is not only convenient for harvesting and processing, but also facilitates timely cultivation after harvest. At the same time, Tianma harvested during this period is not only High yield and good quality. 2, harvest method. Harvest carefully and carefully, pay attention not to damage the hemp body. First, we must carefully remove the topsoil, remove the top layer of soil material and fillers, and then gently remove the gastrodia and harvest it layer by layer. The gastrodins to be removed need to be classified. The arrowheads and large white hemp need to be processed in time, and small white hemp and rice hemp are used for seeding. Special attention should be paid to planting in order to avoid causing bad planting. The specific storage methods are: first, pulverize the soil and put it into a group; loosen the hand and spread the moist fine soil to the ground and spread it to the ground to 5-10 cm. Thickness is appropriate, and then the hemp seed is placed on top, and then sprinkled with 5 cm thick fine soil, pay attention to put carefully. However, such custody can not be too long, otherwise it will cause bad seeds, it is best to harvest and cultivation at the same time, which requires the preparation of new bacteria and wood sections in advance. Second, processing first will be harvested to be processed with Gastrodia washed with water, and thin bamboo scraping lightly to remove the rough surface of the tuber, and then divided into large (200 grams), medium (100-200 grams), small (100 Grams of the following) three points in water soaked, and take the following processing methods in a timely manner: 1, cage steam method. First, use a large fire to place the empty steamer in the pot and add water to steam. That is, the bottom of the pot has boiled. Then, the gastrodia elata is placed in the steamer and cooked according to the large, medium, and small sizes, respectively. Large Tianma steamed 40-50 minutes, steamed about half an hour or so, a small steam 10-20 minutes, to steam through is appropriate, that is, invisible to the light black heart shall prevail, after steaming, remove the fire prepared in advance Baking on the grill and fumigation with a small amount of sulphur, generally 3-5 grams of sulphur per 10 kg of fresh gastrodin. When toasting, it is necessary to turn over frequently to start a fire. When baking begins until the hemp body begins to soften, it is changed to slow fire baking to prevent the hemp body from forming from the layer and hollow and affect the quality. Once the blisters appear blisters, use a bamboo needle to pound into the bast. When baked to 6-70% dry, take out the flattened board, flatten it and bake it until it is ready to serve. The color of this processed Tianma is bright and the quality is good. At the same time, it can also be exposed to sunlight, but it takes a long time and it is unfavorable to improve quality. If it is exposed to the sun during the day and baked at night, it can save some fuel. 2, boiled method. Bring the water to boil first and then put the big, medium and small gastrodia elata in boiling water and boil it. The big gastrodia will be boiled for 15-20 minutes, medium boiled for 10-15 minutes, and small gastrodin boiled for 5-10 minutes. After cooking, remove and bake. The specific baking method is the same as the above cage steaming method. The use of boiled water can cause loss of nutrients in the hemp. Therefore, the quality is inferior to cage steaming.

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