Identification of adulteration of longan meat

Longan meat, also known as the puzzle, honey spleen, dried longan, is a fake seed coat of EuphorEa Long8n (Lour) Steud, a long-living meat of the Sapindaceae plant. With replenishing heart and spleen, nourishing the nerves. Clinically, it is often used for lack of blood and blood, heart palpitations, forgetfulness, insomnia, blood deficiency, and chlorosis. At present, due to its low output, coupled with the continuous increase in the demand for this product in the pharmaceutical industry, the production of health care products, and clinical use of drugs, this product has always been sold out of high prices. In the market, some illegal elements in the longan meat mixed with a large number of shape, color similar to brown sugar, jam, dried fruit and other adulterants, after processing to the real ones, increase the weight, to seek profits, serious harm to people's health. The appearance of adulterants is very similar to that of genuine products. The author identifies the characteristics of the identification of dragon meat and its adulterants as follows for reference.

1 Longan meat

Irregular flakes, constant sheet bonding. Length 15mm, width 20~40mm, thickness about 1mm. Yellow-brown to tan, translucent, with uneven outer surface, brighter inner surface and fine longitudinal wrinkles. Gentle, slightly sweet and sweet. The cells contain calcium oxalate crystals, needle-like, rod-like or clustered.

2 adulterated brown sugar

After being soaked in water with high concentration of brown sugar, the shape and size are similar to longan meat, showing yellow to tan. There is a candied sensation, the thickness of the meat is obviously increased to about 1.5mm, and the constant pieces are bonded together, with different sizes. Carefully breaking apart the longan meat that is bonded together will result in the presence of sugar, sugar, heavy gas, sticky hands, and easy moisture absorption. Its weight is heavy and the water is yellowish-brown, with precipitation and sweet taste.

3 with jam

The shape of the blended jam is similar to that of the longan, which is yellow to brown in color. There is a mixture of granules. The skin is adsorbed with impurities, the gloss is poor, fine longitudinal wrinkles cannot be seen, and the constant pieces are bound together. Different. Carefully splitting the longan flesh that is bonded together often reveals jams in the flesh. Sweet, savory, sticky, moist, easy to absorb moisture. Its weight is heavy, flooding yellow-brown, sediments more, sweet.

4 mixed dried fruits

Blended processed raisins, dried cherries and other processed shapes, the size is not similar to longan meat, yellow to tan. The constant pieces are bound into pieces, and are traces of irregular processing. The surface is uneven and the surface is uneven. The sugar tastes heavy and the gas is slightly fragrant. The weight is heavier. After the immersion in water, the taste is slightly sweet.