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Traditional and modern drying technology of lotus seed

2019-1-3 9:16:15 Views

Lotus seed, Chinese medicine name. It is the dry mature seed of Nymphaeaceae. It is distributed in the southern and northern provinces of China. It has the effect of tonifying spleen, stopping diarrhea, tonifying kidney and astringent essence, nourishing heart and tranquilizing mind. Commonly used in spleen deficiency diarrhea, diarrhea, ejaculation, palpitation, insomnia.

Perennial aquatic herb; rhizome transverse, plump, internodes inflated, with many longitudinal ventilation channels, nodes constricted, and black scale leaves on the top, Inferior whisker Adventitious roots. Leaf shaped, peltate in diam 25-90 cm, The whole margin is slightly presented Undulate, smooth above, with white powder, lower veins shooting from the center, with 1-2 Subfork Branches; petiole stout, cylindrical, long 1-2 m, hollow, with scattered spines outside. Pedicel and petiole equal or slightly longer, also scattered spines; flowers 10-20 cm in diameter, beautiful, fragrant; petals red, pink or white, oblong elliptic to obovate, 5-10 cm long and 3-5 cm wide, gradually becoming stamens from the outside to the inside, sometimes becoming stamens with rounded or blunt apex Microneedle Anthers linear, filaments slender, inserted under the receptacle; style extremely short, stigma terminal; receptacle (Lotus) 5-10 cm in diameter. The nut is elliptic or ovate, 1.8-2.5 cm long, the pericarp is leathery, hard, and dark brown when ripe; the seed (lotus seed) is ovate or elliptic, 1.2-1.7 cm long, and the seed coat is red or white. The flowering period is from June to August, and the fruit period is from August to October.

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It is produced in southern and northern provinces of China. Self growing or cultivated in ponds or paddy fields. It is distributed in the Soviet Union, North Korea, Japan, India, Vietnam, southern Asia and Oceania.

Properties: slightly oval or spherical, long 2-1.8 cm, 0.8-1.4 cm in diameter. The surface is light yellowish brown to reddish brown, with fine longitudinal lines and wide Veins In one end The heart is papillary It is dark brown in shape, with many fissures, and its periphery is slightly depressed. The seed coat is hard and thin. cotyledon 2. Yellowish white, plump, with gaps in the middle, With green Lotus seed heart. The taste of lotus seed is bitter.

Traditional drying process:

Lotus seed is the best tonic, there are very high food Its use and medicinal value. Here is a brief introduction Dry shell lotus and Fleshy lotus Tongxinlian Methods of storage:
1 Dry shell lotus   Dried lotus seed with shell Dry shell lotus After harvesting, lotus seeds are immediately removed from the lotus pods, and they are spread out on the sun field thinly and turned every day 2-3 times, 5-7 times Days later When lotus seed can break away Shell skin It's dry. commonly 100 kg fresh lotus seeds can be dried in the sun for 80-85 kg.
Dry shell lotus Because of the outer layer of thick and hard Lotus seed shell Therefore, in the storage process, it is less damaged by bacteria and insects. It is easy to store and can be stored for a long time.
Storage method: Dried shell lotus Put it in a cool and dry place with a layer of about 20 cm dry chaff, covered with linoleum and reed mat to prevent moisture.
2 Fleshy lotus Tongxinlian   Shell Lotus Sutra After shelling machine or manual knife shelling For fleshy lotus Lotus seed shell, skin, and then remove the lotus heart, the remaining lotus flesh is Tongxinlian
Fleshy lotus It is easy to hygroscopic, moldy and vermiform when it is stored, so special attention should be paid to keep low temperature and ventilation during storage. The common methods are as follows:
one VAT storage : suitable for small amount storage. each 50 kg dry lotus seed with 1.5-2.5 kg dry Polygonum hydropiper, We will do it first The Polygonum hydropiper is padded at the bottom of the VAT, and then the lotus seeds are sealed with a lid. In this way, the new lotus seeds can be preserved until the next year. Generally, the new lotus seeds do not grow insects or mildew.
2. Cold storage: suitable for mass storage. Use sacks Or oil Carton packing OK, put it in the freezer.

Modern drying process:

Sichuan Jieneng Lotus seed dryer Lotus seed drying production line is based on the physical characteristics of lotus seed and scientific drying curve suitable for lotus seed Connect In addition, multiple temperature zones are set up in the horizontal and longitudinal directions of the drying equipment. Lotus seeds naturally turn in the process of rotary movement from top to bottom in the drying room, and then preheating and drying are realized through different temperature regions -Uniform speed drying - deceleration drying three drying processes, its surface heated evenly, to achieve lotus seeds High dry rate Fast drying, good color, high quality and high efficiency.

It can meet the processing requirements of industrial production of lotus seeds, preserve the inherent quality of lotus seeds, and prevent the loss of nutrients. There is no pollution in the production process, and the equipment and processing technology meet the national drug and food hygiene standards.

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Advanced heat source system

Environmental protection, energy saving, no pollution in drying process.

Original active pulsating air supply technology

On the premise of greatly shortening the drying cycle and greatly reducing the processing cost of lotus seeds, At the same time, the production capacity of single equipment is greatly increased. Fast drying speed, large shipment and even drying.

Advanced dual drive technology

The equipment drives stably and has a high degree of automation, which reduces the labor intensity of operators and eliminates the failure of chain breaking and tooth striking. Automatic feeding and discharging design.

Strong compatibility

It can process a variety of materials with similar shapes.

 

key word: Lotus seed dryer, automatic lotus seed dryer, dryer equipment

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