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Preparation method and application of citrus essential oil series products

A technology for citrus essence and series products is applied in the field of preparation and application of citrus essential oil series products, which can solve the problems of limited market appreciation space, low product quality, degraded quality of essential oils, etc., and achieves short heating time, good essential oil quality, The effect of reducing separation costs

Pending Publication Date: 2021-03-09
哈工大机器人南昌智能制造研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since terpenes are unsaturated hydrocarbons, they are sensitive to heat and light, and are rapidly oxidized in the air. Therefore, such compounds are easily oxidized and enzymatically reacted to produce carvone, carvone, and carvone due to processing such as distillation, evaporation, and improper storage. Apiol and other off-flavors, thereby reducing the quality of essential oils and shortening their shelf life
[0005] In addition, at present, citrus essential oils have not been concentrated, the product quality is not high, and the market appreciation space is very limited. Therefore, refining and concentrating citrus essential oils can improve the market competitiveness of products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Citrus essential oil was extracted by traditional distillation as a control example.

[0027] Select fresh citrus fruits—citrus citrus, weigh 100g of fresh citrus peel, wash and remove impurities, dry the peel, control the water content to 8%, and crush the cleaned citrus peel into about 10mm pieces with a crushing machine. Fragments; add distilled water to the distilling bottle according to the solid-liquid ratio of 1:5, add 2% NaCl as an additive, and carry out steam distillation; stop when the distillate oil layer basically no longer increases; low temperature 8°C Next, let it stand for 24 hours, carry out sedimentation oil-water separation, absorb the upper oil layer, and obtain the crude essential oil of orange peel. Add 0.5% anhydrous calcium chloride to the crude orange peel essential oil, stir and let it stand for 8 hours, pour it into a suction filter funnel covered with filter paper, turn on the vacuum pump, dehydrate and remove impurities, and obtain 2.9ml of...

Embodiment 2

[0029] Citrus essential oil was extracted by cold pressing as a control example.

[0030] Select fresh citrus fruits—citrus citrus, weigh 100g of fresh citrus peel, wash and remove impurities, dry the peel, control the water content to 8%, and crush the cleaned citrus peel into about 10mm pieces with a crushing machine. pieces. The orange peel pieces are screw pressed in a screw press to extract the citrus essential oil. The peel juice coming out of the press is immediately filtered with a 100-mesh mesh sieve, and the filtered peel juice is kept at a low temperature of 8°C for 24 hours, and the sedimentation oil and water are separated, and the upper oil layer is absorbed to obtain the crude orange peel essential oil. Add 0.5% anhydrous calcium chloride to the crude essential oil of orange peel, stir and let it stand for 8 hours, filter and dehydrate to remove impurities, and obtain 2.3ml of citrus cold-pressed oil product.

[0031] By comparing Example 1, it can be seen tha...

Embodiment 3

[0033] A preparation method and application of citrus essential oil series products, the method comprising the following steps:

[0034] 1) Pretreatment of citrus peels: select fresh citrus fruits - tangerines with wide skins, weigh 100g of fresh citrus peels with wide skins, wash and remove impurities, dry in the air, control the water content to 8%, and crush the cleaned citrus peels with a crushing machine into 5mm pieces of citrus peel are set aside.

[0035] 2) Squeeze extraction: Weigh the citrus peel fragments in step 1) and put them into a screw press to squeeze, filter the peel juice from the press, obtain the first filtrate and the first filter residue after filtering, and put the first filtrate at temperature Stand at 4°C for 48 hours, settle, and separate oil and water to obtain the upper oil layer, the middle water layer and the lower slag layer, absorb the upper oil layer, which is citrus cold pressed oil, and combine the slag layer and the first filter residue t...

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PUM

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Abstract

The invention discloses a preparation method of citrus essential oil series products. The method comprises the following steps: 1) citrus peel pretreatment: cleaning fresh citrus peel, removing impurities, airing and dicing; 2) squeezing and extracting: performing cold pressing on the orange peel to extract oil; 3) extraction by an ultrasonic-distillation method: firstly treating by an ultrasonicdevice, and then distilling to extract essential oil; 4) dehydration and impurity removal: adding a drying agent for dehydration; and 5) low temperature concentrated distillation: carrying out concentration and terpene removal with a rotary distillation device to obtain concentrated citrus essential oil and limonene. According to the method, the extraction rate of the citrus essential oil is increased, the quality of the citrus essential oil is improved, and the method is low in cost, easy to operate and suitable for industrial large-scale production.

Description

technical field [0001] The invention relates to a preparation method and application of a series of citrus essential oil products. Background technique [0002] Citrus (Citrus reticulata Blanco), a plant belonging to Rutaceae, citrus peel has high medicinal value, and orange peel also contains thiamine, riboflavin, volatile oil, and flavonoids. The volatile oil in the orange peel has a stimulating effect on the digestive tract, can increase the secretion of gastric juice, promote gastrointestinal peristalsis, strengthen the stomach and expel wind. [0003] Citrus essential oil mainly exists in the oil capsule of the exocarp of citrus fruits. The diameter of the oil capsule can reach 0.4-0.6mm, and the essential oil content is about 0.5%-2.0% of the fresh weight of the pericarp. Citrus essential oil is a large category of natural flavors and fragrances. It has a wide range of uses. It is mainly used as a fragrance for food, daily chemical, pharmaceutical, chemical and other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/02C11B9/022C11B9/027
Inventor 刘兆宇赵亮彭丽
Owner 哈工大机器人南昌智能制造研究院
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