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Environment-friendly ultrasonic auxiliary extraction method of citrus carotenoids

A carotene and auxiliary extraction technology, applied in the field of food processing, can solve the problems of low extraction rate and extraction efficiency, expensive equipment, non-polar solvent toxicity, etc., and achieve the effect of high extraction rate, high efficiency and energy saving

Inactive Publication Date: 2010-10-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the solid-liquid extraction method is simple to operate, the extraction rate and extraction efficiency are very low, and the non-polar solvents used have certain toxicity; the solvents used in the supercritical extraction and ultra-high pressure fluid extraction methods are environmentally friendly CO 2 、H 2 O, no pollution, high extraction rate, but the problem is that the equipment is expensive and it is difficult to popularize and apply
However, ultrasound has only a small amount of research reports on the extraction of carotenoids relative to the above-mentioned extraction methods.

Method used

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  • Environment-friendly ultrasonic auxiliary extraction method of citrus carotenoids
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  • Environment-friendly ultrasonic auxiliary extraction method of citrus carotenoids

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1, a kind of green ultrasonic-assisted extraction method of beta-carotene in local early citrus peel, carries out following steps successively:

[0027] 1), the processing of extracting raw materials:

[0028] With 500 grams of local early citrus peels as raw material, the raw material was vacuum-dried for 48 hours in an oven at 45°C. At this time, the water content in the local early citrus peels was determined to be 10% (weight ratio) with a moisture meter; stop vacuum drying, The dried raw material is obtained; the dried raw material is ground with a pulverizer, and the obtained raw material powder is first passed through a 20-mesh sieve and then passed through a 60-mesh sieve. Store for later use.

[0029] 2) Put 3g of raw material powder into a brown flat-bottomed glass tube, add 30ml of ethanol according to the ratio of raw material powder: ethanol is 3g / 30ml, and obtain the extracted stock solution.

[0030] 3), use the probe-type pulsed ultrasonic w...

Embodiment 2

[0038] Embodiment 2, a green ultrasonic-assisted extraction method of β-cryptoxanthin in citrus peel of Wenzhou mandarin orange, carries out the following steps successively:

[0039] 1), the processing of extracting raw materials:

[0040] With 500 grams of Wenzhou Satsuma citrus peels as raw material, the raw material was vacuum-dried for 48 hours in a 45° C. oven. At this time, the moisture content measured in the local early orange peels with a moisture meter was 11% (weight ratio); stop vacuum drying, The dried raw material is obtained; the dried raw material is ground with a pulverizer, and the obtained raw material powder is first passed through a 20-mesh sieve and then passed through a 60-mesh sieve. Store for later use.

[0041] 2) Put 3 g of raw material powder into a brown flat-bottomed glass tube, add 30 ml of ethanol according to the ratio of raw material powder: ethanol of 3 g / 30 ml, and obtain the extracted stock solution.

[0042] 3) Use probe-type pulsed ult...

Embodiment 3

[0050] Embodiment 3, a kind of green ultrasonic assisted extraction method of lutein in Wenzhou mandarin tangerine peel, carries out following steps successively:

[0051] 1), the processing of extracting raw materials:

[0052] With 500 grams of Wenzhou Satsuma citrus peels as raw material, the raw material was vacuum-dried for 48 hours in a 45° C. oven. At this time, the moisture content measured in the local early orange peels with a moisture meter was 11% (weight ratio); stop vacuum drying, The dried raw material is obtained; the dried raw material is ground with a pulverizer, and the obtained raw material powder is first passed through a 20-mesh sieve and then passed through a 60-mesh sieve. Store for later use.

[0053] 2) Put 3 g of raw material powder into a brown flat-bottomed glass tube, add 30 ml of ethanol according to the ratio of raw material powder: ethanol of 3 g / 30 ml, and obtain the extracted stock solution.

[0054] 3) Use probe-type pulsed ultrasonic wave...

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Abstract

The invention discloses an environment-friendly ultrasonic auxiliary extraction method of citrus carotenoids. The method comprises the following steps of: (1) processing extracted citrus peel as a raw material and drying and crushing in vacuum; (2) putting the obtained raw material powder in a brown container and adding ethanol; (3) processing an extracted stock solution with a probe-type pulse ultrasonic wave of 20 kHz in the following processing process: inserting a probe 1 cm below the liquid level under the conditions that the liquid level height is kept at 2-6 cm, the pulse time is 2-7 s, the duty cycle is 50-90 percent, the temperature is from 5 DEG C below zero to 45 DEG C, the acoustic intensity is 60.51-544.59 W / cm<2>, and the extraction time is 60-120 min; (4) filtering; (5) decompressing and evaporating to recover the ethanol; and (6) freezing and drying to obtain powder carotenoids. The extraction method of the invention has the advantage of high extraction efficiency.

Description

technical field [0001] The invention belongs to the field of food processing, in particular to the extraction technology of bioactive components of by-products in food processing. Background technique [0002] In recent years, it has been found that carotenoids have a variety of biological activities, some of which are important components of human tissues and organs, such as lutein is a component of the macula, insufficient intake may lead to age-related macular degeneration (AMD) ), and age-related macular degeneration is the main disease that causes vision loss in the elderly in Western countries (Perera, C.O., & Yen, G.M.Functional properties of carotenoids in human health.International Journal of Food Properties, 2007, 10 (2): 201-230 ). Some carotenoids are the source of micronutrient VA, and there are still 200 million children suffering from VA deficiency in the world (Chen Junshi, Han Fanfan. Analysis of "New Nutrition Science" [J]. Nutrition Journal, 2006, 28 (6)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C403/24B01J19/10
Inventor 孙玉敬叶兴乾陈健初刘东红吴丹张献忠
Owner ZHEJIANG UNIV
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