A method for non-destructive extraction of mineral elements from Lycium barbarum leaves by flash shearing

A non-destructive, mineral element technology, applied in the preparation of test samples, measurement of color/spectral properties, etc., can solve problems such as large environmental pollution, adverse health, low temperature element loss, etc., and achieve short extraction time and low solvent consumption. , the effect of convenient operation

Inactive Publication Date: 2017-09-19
森淼科技集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these mainstream processing methods have obvious disadvantages, such as: dry ashing method, complete digestion, low blank, but easy to cause loss of low-temperature elements; wet digestion method, parallelism of detection results is good, but requires a large amount of acid , the reaction is intense, the environment is polluted, it is harmful to health, and it cannot be eaten directly
The purpose of the above method of extraction is only to detect the content of mineral elements. After the raw materials are processed, they are severely damaged, and the mineral elements in them have lost their edible value.

Method used

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  • A method for non-destructive extraction of mineral elements from Lycium barbarum leaves by flash shearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Wash the wolfberry leaves (Foliis medlar), dry (dry at 60°C for 6 hours), grind and pass through a 60-mesh sieve.

[0039] 2. Accurately weigh 50g of the sieved powder into a beaker, add acetone to make the acetone liquid level 2cm below the wolfberry leaf powder, shake for 20min, filter and dry to obtain the fat-removed wolfberry leaf powder.

[0040] 3. Move the filter cake into a beaker and add 1.5L of deionized water to dissolve it, add cellulase to make the concentration reach 150U / mL, let stand for 2h, then add 100mL of glacial acetic acid solution (the volume of glacial acetic acid and water in the glacial acetic acid solution) The ratio is 1:1).

[0041] 4. Use a flash extractor (motor speed: 6000r / min) to extract for 90s, homogenize and filter with suction, and then extract the residue twice with a flash extractor after suction.

[0042] 5. Combine the extracts obtained three times, concentrate and dry by freeze-drying (110kPa, -50°C, drying for 12h). The content of...

Embodiment 2

[0044] 1. Wash the wolfberry leaves (Foliis medlar), dry (dry at 60°C for 6 hours), grind and pass through a 60-mesh sieve.

[0045] 2. Accurately weigh 50g of the sieved powder into a beaker, add acetone to make the acetone liquid level 2cm below the wolfberry leaf powder, shake for 20min, filter and dry to obtain the fat-removed wolfberry leaf powder.

[0046] 3. Move the filter cake into a beaker and add 1.5L of deionized water to dissolve it, add cellulase to make the concentration reach 150U / mL, let stand for 2h, then add 100mL of glacial acetic acid solution (the volume of glacial acetic acid and water in the glacial acetic acid solution) The ratio is 1:1).

[0047] 4. Use a flash extractor (motor speed: 10000r / min) to extract for 90 seconds, homogenize and filter with suction, and then extract the residue twice with a flash extractor after suction.

[0048] 5. Combine the three extracts, concentrate and dry them by freeze-drying (110kPa, -50°C, drying for 12 hours). The content...

Embodiment 3

[0050] 1. Wash the wolfberry leaves (Foliis medlar), dry (dry at 60°C for 6 hours), grind and pass through a 60-mesh sieve.

[0051] 2. Accurately weigh 50g of the sieved powder into a beaker, add acetone to make the acetone liquid level 2cm below the wolfberry leaf powder, shake for 20min, filter and dry to obtain the fat-removed wolfberry leaf powder.

[0052] 3. Move the filter cake into a beaker and add 2L of deionized water to dissolve it, add cellulase to make the concentration reach 150U / mL, let stand for 2h, then add 100mL of glacial acetic acid solution (volume ratio of glacial acetic acid to water in glacial acetic acid solution 1:1).

[0053] 4. Use a flash extractor (motor speed: 6000r / min) to extract for 60 seconds, homogenize and filter with suction, and then extract the residue twice with a flash extractor after suction.

[0054] 5. Combine the extracts obtained three times, concentrate and dry by freeze-drying (110kPa, -50°C, drying for 12h). The content of calcium is ...

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Abstract

The invention relates to a method for nondestructively extracting mineral elements from wolfberry leaves by flash shearing. It is characterized in that it includes the following steps: (1) drying of raw materials: drying wolfberry leaves; (2) crushing: crushing dried wolfberry leaves; (3) screening; (4) degreasing; (5) hydrolysis; (6) enzymatic hydrolysis; (7) acidification: adding 1-2 mL of glacial acetic acid solution per gram of sample in proportion; (8) flash extraction; (9) suction filtration; (10) concentration; (11) drying: use freeze-drying method and drying the obtained extract to obtain the extract of mineral elements. The invention provides a safe, rapid and non-destructive method for extracting mineral elements from Lycium barbarum leaves. The method can retain the active ingredients of the material to the greatest extent, is not damaged by heat, has adjustable scale, small amount of solvent, short extraction time and high efficiency. , energy saving, safe and reliable, and easy to operate, a single person can operate.

Description

Technical field [0001] The invention relates to a method for non-destructively extracting mineral elements from wolfberry leaves by flash shear. Background technique [0002] Mineral elements, also known as inorganic salts, are the main elements that constitute human tissues, maintain normal physiological functions and biochemical metabolism, and are one of the seven essential nutrients for the human body. Although the total amount of mineral elements in the human body is less than 5% of body weight and cannot provide energy, they cannot be synthesized in the body by themselves and play important functions in the physiological functions of human tissues. In the process of human metabolism, various mineral elements are excreted from the body every day in various ways, such as feces, urine, sweat, hair, nails, skin and mucous membranes. Therefore, it must be supplemented by diet. In the modern food industry, health foods rich in mineral nutrients occupy a central position. There...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N1/40G01N21/31
Inventor 王立英范俊峰徐士梅王慧芳
Owner 森淼科技集团股份有限公司
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