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What are the commonly used processing methods for Gastrodia elata?
The processing of Gastrodia elata must be done carefully and meticulously; otherwise, the good Gastrodia elata that was cultivated through hard work will be processed into inferior products, and all the effort will be wasted, failing to achieve good economic returns. There are 3 commonly used methods for processing Gastrodia elata: 1) Basket steaming method: the method of steaming Gastrodia elata in a basket is called the basket steaming method. Gastrodia elata processed by this method has bright color and the best quality. That is, wash the Gastrodia elata clean of surface soil with clean water, divide it into large, medium and small grades, place them separately in a ground basket and steam for 10-20 minutes; the small ones should be steamed for a shorter time, and the large ones slightly longer, with the degree of being steamed through and having no white core as the standard. 2) Rice-washing water boiling method: use 5
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What are the correct methods for storing Gastrodia elata?
After processing, Gastrodia elata must be stored properly, with strict precautions against insect damage and mold, so as not to affect product quality. Once the finished Gastrodia elata is prepared, it should immediately be sealed in non-toxic plastic packaging lined with white paper, or placed in a ceramic jar. Then cover it with clean thick paper and store it in a dry place to prevent moisture and mold. At the same time, before the annual insect-damage season (March-April), fumigate it once again with sulfur to prevent insect damage.
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Detailed Explanation of Gastrodia Harvest Season and Processing Methods
Sexual reproduction: sow in June and July, harvest in November of the following year. Asexual reproduction: winter sowing, harvest in November of the following year; spring sowing, harvest in November of the same year or spring of the following year. After digging and harvesting, the large ones are used for medicinal purposes, and the small ones are kept as seed tubers. For medicinal gastrodia, wash off the soil, divide into 2 to 3 grades, put into water (add a little alum), boil the large ones for 10 to 15 min and the small ones for 5 to 10 min, judging by whether they are cooked through; when viewed from a dark place toward a bright place, if there is no black core and they are translucent, they are fully cooked. Then fumigate with sulfur for 20 to
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Propagation Methods and Key Technical Points for Gastrodia elata
I. Asexual Propagation 1. Cultivation period. Generally, winter planting is carried out in November, and spring planting in March-April, with winter planting being preferable. 2. Selection of seed tubers. White tubers and rice tubers are preferred, with each weighing 5 g-10 g being optimal. Select those with no disease spots, no wounds, no frost damage, no rot, a spindle-shaped body, and obvious bud eyes as seed tubers. Some also use arrow tubers as seed tubers, but the terminal buds must be removed. 3. Amount of seed tubers used. This should be determined by the size of the seed tubers and the number of fungal logs per pit. Generally, for each pit using 9-10 fungal logs,
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A Detailed Guide to Artificial Cultivation Techniques and Processing Methods for Gastrodia elata
Gastrodia elata is a parasitic herb. Its underground tuber is an important medicinal material, in great demand on both domestic and international markets. In recent years, the price of Gastrodia elata has remained firm, holding steady at 260-300 yuan per kilogram. In the past, Gastrodia elata was produced by vegetative propagation; because there was little planting stock of Gastrodia elata and it degenerated easily, both yield and quality could not meet demand, and it was in very short supply. Since last autumn, the market has turned brisk and prices have risen. The market transaction price for domestically grown first-grade Gastrodia elata is 280 yuan per kilogram, close to the historical high. The reasons are the social [market conditions], a sharp surge in demand, a decline in output, and an improvement in the export situation.
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Asexual Propagation Methods and Key Technical Points for Gastrodia elata
It should be divided into the following steps: (1) For seed tubers, select fresh, intact white tubers or small tubers that are disease-free, frostbite-free, and rot-free. The planting period is from October each year to May of the following year. In April of the following year, when the ground temperature rises and Gastrodia elata begins to grow (10-15°C), Armillaria mellea (which begins to grow at 6-8°C) can already supply nutrients to Gastrodia elata. (2) Fixed fungus bed cultivation method. This is carried out in the original fungus wood cultivation pit. First, scrape open the covering of the pit with the fixed fungus wood, take out the upper layer of fungus wood, and then scrape open the filler on the fixed fungus wood. After the bottom layer of fixed fungus wood is exposed, do not move the fungus wood
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Detailed Explanation of Gastrodia elata Cultivation Techniques and Processing Methods
Gastrodia elata is a herbaceous plant, with its underground tubers used as medicine. It mainly treats high blood pressure, dizziness, headache, facial paralysis, limb numbness, infantile convulsions, hemiplegia and other conditions. It is also used for pilots' brain health care and Alzheimer's disease, etc., and is an ideal medicine for brain and nerve health. 1. Propagation of Gastrodia elata 1.1 Sexual propagation When a few Gastrodia elata plants send up aboveground stems and bloom, the sandy soil should be kept moist, the flowering stems fixed with bamboo poles, and direct sunlight shaded. After the flower buds take shape, the flowers open from bottom to top, one to several per day. If pollinating insects are lacking, @#@255@#@ can be kept nearby or artificial pollination can be carried out: use tweezers to open the corolla, remove the anther cap, take out the pollen mass, and place it on the stigma. Pollination should be done between 10 a.m. and 4 p.m. If pollination is successful, the ovary swells, the corolla withers, and the ovary suture becomes obvious. Once it splits, a large number of seeds will be released. When one fruit splits, cut off 3-5 adjacent fruits and place them in a container to take the seeds after they split naturally. The seeds scattered in the container should be sown immediately and must not be left standing. Lift up the cultured fungal material of the prepared fungal bed, spread broadleaf tree leaves about 1 cm thick underneath, scatter the seeds among the leaf layer, sowing the seeds of 10-20 fruits per square meter, then restore the fungal material to its original state, scatter a layer of leaves, cover with fill, and let it grow strong Gastrodia elata, becoming a high-yielding hybrid seed tuber. When planting Gastrodia elata, make several more fungal beds, do not put in seed tubers, and prepare them for use in sexual propagation of Gastrodia elata.
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Detailed Explanation of the Cultivation Season and Planting Methods of Gastrodia elata
1. Sexual reproduction ① "Pre-cultivated bacterial bed method": From March to April each year, use Armillaria mellea spawn to cultivate new bacterial material, and from May to June, use germination-promoting fungal spawn mixed with Gastrodia elata fruits for sowing. In November, harvest the sexual seeds, and in November of the following year, harvest the commercial tubers. This method gives stable and high yields with significant economic benefits. ② "Two fungi and one seed mixed planting method": From May to June each year, use Armillaria mellea spawn, bacterial material or twigs, Gastrodia elata fruits, and germination-promoting fungal spawn for one-time sowing. In November, harvest the sexual seeds, and in November of the following year, harvest the commercial tubers. This method is simple to operate, high-yielding, and effective.
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How to Identify True and False Gastrodia? A Detailed Guide to Practical Identification Methods
Gastrodia is a precious Chinese medicinal herb. With the gradual shortage of wild Gastrodia resources, Gastrodia has been listed as a nationally protected third-class endangered plant. In recent years, although artificial cultivation of Gastrodia has progressed rapidly, due to large demand, market shortages, and firm prices, some lawbreakers have taken the opportunity to pass off fakes as genuine. For this reason, the methods for identifying true and false Gastrodia are introduced as follows: 1. True Gastrodia. It has eight major characteristics: (1) The underground tuber is ovate or elliptical; after processing, steaming, and drying, it usually appears as a long ellipse, slightly flat, sometimes curved,
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Detailed Explanation of Fine Processing Methods and Technical Points for Gastrodia elata
Gastrodia elata must be processed as soon as it is dug up and harvested, because if stored for too long, it easily loses its sap, reducing the drying ratio. Spring-harvested Gastrodia elata especially cannot be stored. Spring temperatures are high, and if it is not processed in time, it will also become moldy and rot. During processing, first wash the dug-up Gastrodia elata clean of soil with clean water, then wipe off the moisture with a cloth, and then put it in a pot to stir-fry together with fine sand. According to the size of the pot (No. 1 or No. 2 pot), put fine sand in each pot for stir-frying. According to the size of the pot (No. 1 or No. 2 pot), put 4-7.5 kg of fine sand in each pot and 1.5-2.5 kg of Gastrodia elata. It should be processed according to
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