Lutein extracting process from marigold flower

A technology of marigold flowers and lutein, applied in the direction of organic chemistry, etc., can solve the problems of large solvent consumption per ton of raw materials, low trans-lutein content, low lutein yield, etc., so as to reduce the solvent content, reduce Production cost, small size effect

Inactive Publication Date: 2005-12-14
DAQING JINTUDI BIOLOGICAL SCI TECH
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Problems solved by technology

[0003] In order to solve the problems that the existing lutein extraction process has small production scale, low lutein yield, large solvent consumption per ton of raw materials, and low trans-lutein content in lutein, the present invention provides a method for extracting lutein from marigold flowers. The process of lutein has large production scale, high yield of lutein, small solvent consumption, increased effective amount of lutein, guaranteed product quality and reduced cost

Method used

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  • Lutein extracting process from marigold flower

Examples

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Embodiment 1

[0026]Example 1: 163.51 tons of marigold granule raw materials with a specification of 3-5mm, a water content of 13.5%, and a dust content of 9.6% were transported to a platform-type rotary extractor by a scraper conveyor, and passed through six solvent pumps. Continuous countercurrent leaching, the upper temperature of the extractor is 48°C and the negative pressure is maintained, and the leaching time is 150 minutes. The lutein is continuously countercurrent leached by solvent oil and dissolved by solvent oil to form a saturated solution. After leaching, it passes through the silo of 60 mesh Filter through a mesh to separate the residue from the saturated solution. The slag is evaporated by negative pressure steam at 126°C through the residue steamer, the slag discharge temperature is 80°C, the lutein content is 0.3g / kg, the temperature of the hot water tank is 79°C, and the solvent oil contained in the residue is evaporated by the residue steamer , and enter the condenser ...

Embodiment 2

[0027] Example 2: 126.51 tons of marigold granule raw materials with a specification of 3-5mm, a water content of 12%, and a dust content of 8.9% were transported to a platform-type rotary extractor by a scraper conveyor, and passed through six solvent pumps. Continuous countercurrent leaching, the temperature of the upper part of the extractor is 46.5°C and the negative pressure is maintained, and the leaching time is 110 minutes. The lutein is continuously leached by solvent oil in countercurrent and dissolved by solvent oil to form a saturated solution. After leaching, it passes through the silo of 60 mesh Filter through a mesh to separate the residue from the saturated solution. The slag is evaporated with negative pressure steam at 121.5°C through the residue steamer, the slag discharge temperature is 75°C, the lutein content is 0.37g / kg, the temperature of the hot water tank is 80.5°C, and the solvent oil contained in the residue is evaporated by the residue steamer , a...

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Abstract

The lutein extracting process from marigold flower include the steps of: conveying marigold flower and solvent in certain ratio with conveyer to rotary leaching device, leaching, three stage filtering, washing, depositing, degluing, desugaring, evaporating concentration to obtain extractum, compounding in food level refining tank and refining. The present invention has the advantages of large production scale, high lutein yield, low solvent consumption, high lutein content in product, high product quality and low production cost.

Description

Technical field: [0001] The invention relates to a preparation process of lutein, which belongs to the process of extracting lutein from marigold flowers. Background technique: [0002] Extracting lutein ointment from marigold flowers as raw materials for feed additives, food additives and health food has been done in the past ten years, and its development is rapid. It gradually replaces synthetic lutein with advantages in performance and price. At first, people borrowed edible oil extraction equipment to extract lutein. The temperature of the extraction and concentration process was high, so the yield and quality of lutein were not high. In 1996, China began to extract lutein with a tank-type extractor. A vacuum system was added during the concentration process to reduce the processing temperature and improve the quality of the product; a refrigeration recovery system was added to the tail gas recovery system to reduce the solvent. Consumption, reducing the pollution to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C403/24
Inventor 杨杰刘玉申高振龙杜虹
Owner DAQING JINTUDI BIOLOGICAL SCI TECH
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