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A kind of extraction method of polyphenols in sugarcane scum

A technology of sugarcane scum and extraction method, which is applied in the direction of pharmaceutical formula, medical preparations containing active ingredients, organic chemistry, etc., can solve the problems of sugar liquid decolorization, etc., and achieve the improvement of adsorption and separation efficiency, remarkable economic and social benefits, The effect of reducing production costs

Active Publication Date: 2018-07-10
广东省科学院生物与医学工程研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of these current related technologies is that they cannot be combined with the actual continuous sugar production process, and cannot satisfy the problem of decolorization of sugar liquid while extracting functional substances in sugarcane

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Get 100 g of sugarcane mixed juice scum obtained by air flotation process in the sugar cane sugar making process and put it into a container, then add 200 mL of ethanol solution with a concentration of pH=2 of 40% (v / v) to extract the sugarcane scum raw material Medium polyphenols; at the same time turn on the ultrasonic wave for auxiliary extraction, the ultrasonic condition is: ultrasonic intensity 10W / cm 2 , ultrasonic frequency 2×10 4 Hz; after the extraction time of 30min, filter to obtain the filtrate of filter residue and extraction;

[0033] (2) Take 100 mL of the extracted filtrate prepared in step (1), then add 500 mL of absolute ethanol, stir for 2 min, then stand still at 2° C. for 12 h, separate by centrifugation, and collect 550 mL of the upper layer solution;

[0034] (3) Concentrate the 550mL upper layer solution collected in step (2) at a temperature of 55°C, stop when concentrated to 27.5±0.5mL, obtain 27.5mL concentrated solution and recover the ...

Embodiment 2

[0040] (1) Get 100 g of sugarcane mixed juice scum obtained by air flotation process in the process of sugar cane sugar making and put it into a container, then add 1000 mL of ethanol solution whose concentration is 80% (v / v) at pH=6 to extract the sugarcane scum raw material Medium polyphenols; at the same time turn on the ultrasonic wave for auxiliary extraction, the ultrasonic condition is: ultrasonic intensity 40W / cm 2 , ultrasonic frequency 2×10 9 Hz; after extraction time 120min, filter to obtain the filtrate of filter residue and extraction;

[0041] (2) Take 100mL of the extracted filtrate prepared in step (1), then add 1000mL of absolute ethanol, stir for 10min, then stand still at 5°C for 48h, separate by centrifugal sedimentation, and collect 1000mL of the upper layer solution;

[0042] (3) Concentrate the 1000mL upper layer solution collected in step (2) at a temperature of 75° C., stop when concentrated to 100mL, obtain 100mL concentrated solution and recover the...

Embodiment 3

[0047] (1) Get 100 g of sugarcane mixed juice scum obtained by air flotation process in the process of sugar cane sugar making and put it into a container, then add 400 mL of ethanol solution with a concentration of pH=4 to extract sugarcane scum raw material of 50% (v / v) Medium polyphenols; at the same time turn on the ultrasonic wave for auxiliary extraction, the ultrasonic condition is: ultrasonic intensity 20W / cm 2 , ultrasonic frequency 2×10 6 Hz; after the extraction time of 60min, filter to obtain the filtrate of filter residue and extraction;

[0048] (2) Take 100 mL of the extracted filtrate prepared in step (1), then add 700 mL of absolute ethanol, stir for 5 min, then stand still at 3° C. for 24 h, separate by centrifugal sedimentation, and collect 750 mL of the upper layer solution;

[0049] (3) Concentrate the 750mL upper layer solution collected in step (2) at a temperature of 60° C., stop when concentrated to 50mL, obtain 50mL concentrated solution and reclaim ...

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Abstract

The invention belongs to the technical field of plant component extraction, and discloses a method for extracting polyphenols from sugarcane scum. The extraction method is as follows: using sugarcane scum as a raw material, extracting with an ethanol solution under the condition of ultrasonic assistance, adding absolute ethanol to the obtained extract, resting for 12h-48h at 2°C to 5°C, and separating and collecting the upper layer solution; The obtained upper layer solution is concentrated and then adsorbed and eluted by a macroporous resin to obtain a polyphenol eluate; finally, the polyphenol eluate is concentrated and dried to obtain the final product polyphenol. The invention adopts the low-temperature high-concentration alcohol precipitation technology to remove a large amount of macromolecular substances in the extracted filtrate, improves the adsorption and separation efficiency of the macroporous resin to the polyphenol, and can significantly reduce the production cost.

Description

technical field [0001] The invention belongs to the technical field of plant component extraction, and in particular relates to a method for extracting polyphenols from sugarcane scum. Background technique [0002] The research and development of phenolic substances is a hot topic in the fields of light industry, food and medicinal chemistry. In recent years, many physiological activities of phenolic substances have gradually been recognized by the scientific community, such as: anti-aging, lowering blood sugar, lowering blood fat, anti-pathological changes, regulating immunity, etc. Phenolic substances are the main active ingredients of sugar cane. At present, 16 kinds of sugarcane phenols have been found. Sugarcane is a temperate and tropical crop and is the raw material for the production of sucrose. Sugarcane sugar industry is an agricultural industry and an inexhaustible and renewable means of living. In the current sugar making process, substances other than sucros...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07G99/00A61K36/899
CPCA61K36/899C07G99/00
Inventor 张平军黄向阳许广球高俊永莫柳珍孙潇
Owner 广东省科学院生物与医学工程研究所
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