In order to ensure the safe and effective use of drugs, attention should be paid to the identification of counterfeit gastrodia medicinal materials. For details, see Gastrodia and Counterfeit Products under the microscope for comparison and identification. It has been found that the use of dahlia, pokeweed, banana, Huang Jing, taro, potato and other plant rhizomes after processing mixed gastrodin medicine. (1) Purple Jasmine Purple Jasmine Pink bean curd, night demon, is Mirabilis. After its root is cooked and peeled and dried, it is easy to mix and fill gastrodia. The root of the jasmine root is long cone-shaped after drying. The root marks should be sag such as a small hole. It should be arranged in longitudinal rows on both sides. There are no traces of vertical lines, gray or yellowish-white, opaque, dull profile, no distinctive taste, slightly bitter taste. After that, it was tingling throat, and the broken end of the fiber was seen in the section. Turatosaurus: The root pseudo-products of yucca are very similar to gastrodia. Many rhizome base residues are artificially tied into the mouth of a budgerigar. The surface seems to be covered with ash. After peeling, filamentous fibers can be left, and the stem base is more. Physical and chemical identification: 1 purple Jasmon root or banana root root powder alcohol infusion plus mercury nitrate solution, heated, with a pale yellow precipitate; 2 purple jasmine root or turmeric root powder extract iodine reagent, was blue purple or brown red ; 3 purple jasmine root or aronia root powder alcohol immersion, under the fluorescent dark gray blue. (2) potato potato alias potato head, potatoes, yam eggs, is Solanaceae. Potato tubers are oval in shape, flattened, with grooves and wrinkles on the surface, and fine cracks on the crude products. The front stem base marks are artificially tied, and there are no ring marks. The quality is not firm. Cross-sections of coarse products are dull and granules; smooth products are keratinous and slightly sweet. Physicochemical identification: 1 method with the purple jasmine, milky white flocculent precipitation; 2 methods with purple jasmine, was blue-violet; 3 methods with purple jasmine, was pale blue gray fluorescence. (3) Dahlia Dahlia Alias ​​Dali Ju, Huan Erhua, belongs to Asteraceae. The dry roots are spindle-shaped or shrunken. There are obvious irregular grooves. There are obvious fiber breaks at the base of the stem. The texture is hard and brittle, and the body is light. There are no ring-shaped rings. The middle of the roots has a wooden core or hollow. The chewing gums taste sweet. Physicochemical identification: 1 method with the purple jasmine, a yellow or light brown precipitation; 2 methods with the purple jasmine, yellowish brown wolfberry painstakingly or light brown; 3 methods with purple jasmine, the lake blue gray fluorescence. (4) 芋芋 alias 芋艿, 芋 root, 芋 head, belonging to Araceae, dry tubers flattened, with longitudinal grooves and creases, buds at the top of the residue, a brown round scar at the bottom, no trace marks, cross-section Pink, slightly sweet. Physicochemical identification: 1 method with the purple jasmine, a yellow-white precipitation; 2 methods with purple jasmine, tan; 3 methods with purple jasmine, light blue fluorescence. (5) Huang Jing Huang Jing alias tiger ginger, is Liliaceae. Dry stems have nodules, fine wrinkles slightly reduce the link, stem marks were clearly disc-shaped (called corn), there are many small set points, chewing sticky. Sweet and sweet. Physicochemical identification: 1 method with the purple jasmine, a lemon yellow precipitate; 2 methods with purple jasmine, yellow; 3 methods with purple jasmine, bright blue-gray fluorescence. (6) Trichosanthus annuus powder Alias ​​trifoliate orange powder, alfalfa root, belongs to Cucurbitaceae. The dry roots are spindle-shaped, with stalks remaining at one end, or artificially tied into short mouths. Physicochemical identification: 1 method with the jasmine, a light yellow precipitate; 2 methods with the purple jasmine, yellow brown; 3 methods with the jasmine, light blue fluorescence. (7) Alias ​​of Shangluo commercial land can be seen as swelling, mountain radish, soil melon, etc., belonging to Shanglu Branch. Most of the dry roots are spindle-shaped, flattened, and often have stem residues or cut ends on both ends. It can be seen that the concentric ring striae (called the compass line) can be seen outside the root marks. Light taste, a sense of linen tongue. Physicochemical identification: 1 method with the jasmine, milky white liquid, milky yellow precipitate; 2 methods with purple jasmine, dark purple or purple; 3 method with purple jasmine, bright blue-gray fluorescence. (8) Dajiu nine cattle Niujiu cattle alias Green Gastrodia, Yangjiao Gastrodia, is a banyan tree branch. The roots of fibrous materials in dried products are mostly spindle-shaped, and often they are twisted to be horn-like at one end. The surface has fibrous roots and line-like rings. The top of the fibrous material has residual stems and is light in taste. Physical and chemical identification: 1 method with the purple jasmine, showing pink, and a yellowish precipitate; 2 methods with the jasmine, brown. (9) Cracked crab crab grass cracked crab crab Alias ​​alias gastrodia, pig stomach, chicken polycystic, Tang Gula crab grass, is asteraceae. The dried tubers are oblong or spindle-shaped, flattened and slightly curved, gray-brown or yellow-brown, and the links are not obvious. There are irregular coarse and fine folds and obvious root marks, and there is a residual bar in one end. Hard, cross-section horny, sweet taste. Physical and chemical identification: 1 method with the purple jasmine, a yellow-white flocculent precipitate; 2 methods with purple jasmine, showing yellow brown. (10) Chih Chih Chih Chih alias Alimentarius, gas bag, Wang Gua, mountain potato, belonging to Cucurbitaceae. The drying block is conical or spindle-shaped with grayish-brown surface. It has regular longitudinal grooves and transverse skin-like scars. There are no transverse ring patterns. The quality is hard to break. The section is flat, powdery, slightly bitter, and has a tingling sensation. . China Agricultural Network Editor
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