High-throughput method for extracting carotene in biological sample

A carotene and biological sample technology, applied in the field of carotenoid production and research, can solve the problems of high operating cost, high labor intensity, complicated process, etc., and achieve the effect of avoiding a large amount of reagent expenses, reducing energy consumption, and simple operation

Inactive Publication Date: 2013-02-06
SHANGHAI RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main characteristics of these technologies are: the required devices are large and expensive; there are many materials to be processed, but each time the loss and the required sample volume are large; The sample is extracted repeatedly); the amount of solvent required is relatively large; the extraction process often requires heat treatment, and the operating cost is high; each device can only process a single sample each time
For the bacterial strain breeding of excellent industrial production strains and the fermentation optimization process of the optimal process technology, due to the extremely large (from tens to hundreds of samples / time) of the required extraction and analysis samples, the previous literature patents The publicly reported technology has shortcomings such as time-consuming, labor-intensive, energy-consuming, labor-intensive, low processing throughput, large sample demand and loss in the extraction process, and is not suitable for the simultaneous processing of a large number of samples and the needs of sample analysis.

Method used

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  • High-throughput method for extracting carotene in biological sample
  • High-throughput method for extracting carotene in biological sample
  • High-throughput method for extracting carotene in biological sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Three groups of parallel samples were set up for each group of conditions, the diameter of the crushing and oscillating crushing beads was 6mm, the number of crushing and oscillating crushing beads used was 15, the crushing speed was 400rpm, the inclination angle of the crushing tube was 0°, and the weight of the analyzed sample was about 0.2g. break time press figure 1 The range of conditions described in:

[0053] According to the analysis of implementation results, it can be seen that when the crushing time reached 30min, the crushing extraction rate of three groups of parallel samples all reached 100%, and as the crushing time prolongs, the extraction rate of β-carotene in B. trispora reached 100%. level remains unchanged. It can be seen that, by selecting a suitable crushing time, the present invention can be effectively implemented in the extraction of B. trispora β-carotene; wherein, considering the shortening of the extraction time and the stability of the extr...

Embodiment 2

[0055] In order to ensure that the present invention can be effectively implemented in the extraction of β-carotene in B. trispora. In this embodiment, the sizes and specifications of the broken beads are examined. Under the implementation conditions that the number of crushing and oscillating crushing beads used is 15, the crushing speed is 400rpm, the crushing time is 30min, the inclination angle of the crushing tube is 0°, and the weighing of the analysis sample is about 0.2g, this embodiment examines 4mm, 5mm and Effects of 6mm broken beads of three different sizes on the implementation of the invention.

[0056] According to the results of the invention, it can be seen that within the scope of the size of the broken beads, the β-carotene in the B. trispora can be fully extracted. Among the three groups of experiments, the 6mm steel ball has the best crushing effect and the highest working efficiency.

Embodiment 3

[0058] By changing the angle of the broken tube fixing frame, the implementation of the present invention on the extraction of β-carotene in the cells of B. trispora was investigated. Lock the oscillating crushing tubes containing 15 oscillating crushing beads with a diameter of 6 mm, about 0.2 g of B. trispora cells, and 5 ml of extraction solvent in fixed frames with different placement angles, and place them on a shaker with a crushing speed of 400 rpm Breaking time 30min, investigate the enforcement of the present invention with this, the result is as follows image 3 shown.

[0059] According to the analysis of the results of this embodiment, it can be seen that when the installation angle of the oscillating broken tube is 90° (perpendicular to the gyratory oscillation plane), the cell crushing effect (or β-carotene extraction efficiency) is the worst; as the inclination angle increases continuously, Under the condition that other conditions remain unchanged, the crushin...

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Abstract

The invention relates to a high-throughput method for extracting carotene in a biological sample. The method comprises the following steps of: providing oscillating and crushing power through a mechanical oscillator fixed with an oscillating and crushing tube rack, filling the biological sample, an oscillating and crushing ball and an organic solvent in the oscillating and crushing tube, and locking the sealed oscillating and crushing tube on the oscillator tube rack; and realizing grinding crushing of tissues or cells of the biological sample and dissolving and extracting of a carotene sample by utilizing collision friction of the oscillating and crushing ball and osmosis dissolution of the organic solvent in a tube at a certain oscillating rotating speed or frequency. Compared with the prior art, the method has the advantages of sample treatment flux, simple process, high working efficiency, low experimental system error, fewer required samples and solvents, low labor intensity, insulation of solvent volatilization and the like; and according to the method, the sample treatment flux and the carotene extraction efficiency can be effectively improved in the process of industrial microorganism, animal and plant high-quality variety breeding and process optimization.

Description

technical field [0001] The present invention relates to the technical field of carotenoid production and research, specifically, it is a kind of closed crushing tube assembled with organic solvents, oscillating broken beads and samples to be extracted by using an oscillating frame fixed on a high-speed oscillator. oscillate simultaneously. With the help of the collision milling effect of the oscillating crushing beads and the extraction effect of the organic solvent, the carotenoids contained in the cells in each crushing tube are dissolved and extracted at the same time, so as to realize the high-throughput and rapid extraction of carotenoids from the analysis samples . Background technique [0002] Carotene was first isolated from carrots by Wackenroder in 1831, the molecular formula of β-carotene was determined by Willstather in 1906, and the structural formula was determined by Zechmeister et al. in 1928-1932. Carotene is an orange-colored photosynthetic pigment that w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 董宏伟徐大刚吴向阳蔡杨陈慧芳杨晔吴欣森李泓全童海宝
Owner SHANGHAI RES INST OF CHEM IND
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