Preparation method of vitex negundo linn volatile oil

A technology of volatile oil and Vitex chrysalis, which is applied in the field of preparation of vitex volatile oil, can solve the problems of large damage to heat-sensitive substances and unstable components

Inactive Publication Date: 2014-02-12
湖北大自然农业实业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it will cause great damage

Method used

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with embodiment.

[0014] Weigh 10g of Vitex vetex powder in a 1000mL round bottom flask, add 300mL of distilled water to fully immerse the material, and take another 50mL of n-hexane in a 500mL flask, connect a simultaneous distillation extraction device, and keep the material at one end in a slightly boiling state. The temperature is about 110± 5°C, the temperature at one end of the organic solvent n-hexane is controlled at 80°C ± 5°C, and when both sides are refluxed, the timing is maintained for 4 hours. After the extraction is completed, the organic reagent is transferred to a stoppered Erlenmeyer flask, and anhydrous sodium sulfate is added until there is no large knot. The block is in the form of fine grains, put it in the refrigerator overnight, pass through a 0.45 μm microporous membrane, and rotate to evaporate to a small amount of residue. Transfer it to an injection bottle and blow nitrogen ...

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Abstract

The invention relates to the field of vitex negundo linn volatile oil, and specifically relates to a preparation method of vitex negundo linn volatile oil. The preparation method is characterized by comprising the following steps: weighing 10g of vitex negundo linn powder in a 1000mL round-bottom flask; adding 300mL of distilled water to fully immerse a material; additionally taking 50mL of normal hexane in a 500mL flask; connecting a simultaneous distillation-extraction device, wherein one end of the material maintains a micro-boiling state at about 110+/-5 DEG C; after extraction, transferring an organic reagent to a triangular flask with a plug to obtain yellow volatile oil; as an aqueous phase and an organic phase are immiscible and are separated in a U-shaped tube and respectively flow back to the flasks on both sides, realizing the purposes of extracting, separating and enriching trace volatile and non-volatile components in a sample through a continuous and circular distillation and extraction process. By adopting the technical scheme, the extraction technology screened has the characteristics of high extraction rate and is simple to operate. The preparation method is used for preserving fresh lotus roots with excellent effect. The preparation method is conducive to improving the content of target matters.

Description

technical field [0001] The invention relates to the field of Vitex quintana volatile oil, and relates to a preparation method of Vitex chrysanthemum volatile oil. Background technique [0002] In the food industry, preservatives are one of the most important additives. It is a kind of food additive for the purpose of protecting the nutritional value and original properties of food. At present, most of the commonly used preservatives in the world are chemically synthesized preservatives, but the problems of carcinogenicity, teratogenicity and chronic food poisoning of chemically synthesized preservatives have aroused widespread concern in the society. In recent years, with the improvement of people's living and consumption levels, the demand for food processing has increasingly shifted towards "green" and "natural". Therefore, the research and development of natural and safe functional food preservatives just seem more and more important. Natural food preservatives can be ...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/04C11B9/02A23L3/3472
Inventor 王清章李洁严守雷刘桂珍杜向阳陈运兵
Owner 湖北大自然农业实业有限公司
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