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Method for preparing sugarcane top polysaccharide from sugarcane tops

A technology of cane tip and polysaccharide is applied in the field of using sugarcane tip to prepare sugarcane tip polysaccharide, which can solve the problems of long extraction time, long process line, influence efficiency, etc., and achieves the advantages of short extraction time, improving polysaccharide yield and solving resource waste. Effect

Active Publication Date: 2014-03-12
GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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Problems solved by technology

The crude polysaccharide is extracted by conventional methods, the process line is long, and the extraction time is long, which greatly affects the efficiency

Method used

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  • Method for preparing sugarcane top polysaccharide from sugarcane tops

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.

[0030] The present invention adopts microwave-ultrasonic combined method to extract sugarcane tip polysaccharide, which has high efficiency and saves time. The process circuit diagram is as attached figure 1 , the specific process is as follows:

[0031] 1) Fresh cane shoots are crushed into small pieces with a multi-functional new grass breaker, dried at 50°C, crushed by a high-speed grinder, and passed through a 80-mesh sieve to obtain sugarcane shoot powder;

[0032] 2) Degreasing pretreatment of sugarcane shoot powder: add 95% ethanol to the sugarcane shoot powder, extract at 80°C for 1 hour, remove the lipids outside the cell wall of the sugarcane shoot and the pigment impurities in the sugarcane shoot, remove the solvent, and leave the defatted sugarcane shoot powder to wait use;

[0033] 3) The degreased sugarcane tip powder in ...

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Abstract

The invention discloses a method for preparing sugarcane top polysaccharide from sugarcane tops, which comprises the following steps: 1) drying and crushing sugarcane tops so as to obtain sugarcane top powder; 2) carrying out degreasing pretreatment on the sugarcane top powder; 3) carrying out ultrasonic-microwave synergic sugarcane top polysaccharide extraction on the sugarcane top powder obtained in the step 2); 4) carrying out concentration, separation and purification on an extracting solution by using a membrane separation technology; 5) adding ethanol into the concentrated solution obtained in the step 4) until the ethanol concentration is 80%, carrying out low-temperature precipitation on the concentrated solution, and centrifuging so as to obtain a precipitate; and 6) freeze-drying the precipitate obtained in the step 5) so as to obtain the sugarcane top polysaccharide. According to the method disclosed by the invention, the problems of resource waste, air pollution and potential safety hazards caused by the burning of sugarcane tops are solved, the additional value of the sugarcane tops is promoted, and a new, efficient and environmental-friendly method is provided for the preparation of the sugarcane top polysaccharide.

Description

technical field [0001] The invention belongs to the field of polysaccharide preparation, and in particular relates to a method for preparing sugarcane tip polysaccharide by using sugarcane tip. Background technique [0002] Sugarcane is a member of the grass family (Graminaeeae) Saccharum genus ( Saccharum L.) Plants are the main raw materials for sugar production in my country. my country is one of the three major sugarcane origin centers in the world, and has become the third largest sugar producer in the world after Brazil and India. The main sugarcane planting provinces in my country are Guangxi, Yunnan, Guangdong, Hainan and Fujian, among which Guangxi is the largest province, accounting for about 60% of the total area of ​​the country. [0003] Sugarcane tip, also known as sugarcane tail leaf (hereinafter all referred to as sugarcane tip), is the general designation of the tenderest nodes and green leaves on the top of sugarcane when harvesting sugarcane, accounting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
Inventor 何雪梅李丽盛金凤廖芬郑凤锦李昌宝李杰民刘国明孙健刘明娟卫萍
Owner GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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