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Method and technology for high-value comprehensive utilization of banana stems and leaves

A technology for banana stems, leaves, and slurry, which is applied in chemical instruments and methods, applications, food processing, etc., and can solve the problems of limited raw material resources and high prices

Active Publication Date: 2013-09-25
HAINAN BEIOU BIOENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The resources of these raw materials are very limited, which is also the reason for the high price.

Method used

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  • Method and technology for high-value comprehensive utilization of banana stems and leaves

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Embodiment Construction

[0051] Take Hainan Daling stem "beating method" non-grain fuel ethanol production line as an example. The specific implementation process of the comprehensive utilization process of banana stems and leaves in this production line is as follows:

[0052] 1. Collect 10 tons of banana stalks and use them in 10 batches, each batch of 1 ton;

[0053] 2. Cut into pieces of 2 to 5cm by a four-roller mower;

[0054] 3. Decompose the banana stalk fragments into 2-5cm filaments through the wire separator;

[0055] 4. Use propyl ether as the extractant to mix and refine the filamentous material at a volume ratio of 1:1, and pulp through the refiner until the beating degree is 30°SR, and the total volume is about 2m 3 ;

[0056]5. After pumping the mixed slurry into the extraction tower, heat it to 60-70°C, stir it fully, let it rest for 1 hour, and discharge the extract from the upper layer of the extraction tower with acrylic ether; the discharged extract will continue to be used in ...

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Abstract

The invention provides a comprehensive utilization method of banana stem and leaf resources. The method adopts banana stems and leaves as raw materials to successively produce tannic acid, pectin, paper pulp fibers, fuel ethanol, and yeast fodder. The method comprises the steps of: adopting banana stems and leaves as the raw materials, crushing the banana stems and leaves into a slurry form by beating via an extractant, and extracting tannin via an extracting liquid while pulping; subjecting the rest banana stem and leave slurry to acidolysis, and extracting pectin of the banana stems and leaves by stewing the banana stem and leave slurry at a normal pressure; and subjecting the remaining slurry to acidolysis, and degrading polysaccharide, starch and the other degradable substances into soluble degraded sugars by stewing at a high temperature and a high pressure, wherein the degraded sugars and reducing sugar of the banana stems and leaves constitute a soluble substance aqueous solution, so that a separation of cellulose from degradable substances is realized. The method provided by the invention can share the comprehensive utilization cost of banana stems and leaves, and can greatly increase the utilization efficiency of banana stem and leaf resources.

Description

technical field [0001] The invention relates to a method for utilizing banana stem and leaf resources, in particular to a method for jointly producing tannin, pectin, pulp, ethanol and yeast feed by using banana stem and leaf. Background technique [0002] The planting area of ​​bananas in my country's hot areas has reached more than 8 million mu, and the resources of banana stems and leaves are as high as 160 million tons. Banana stems and leaves are rich in fiber, starch, polysaccharides, mannose, pectin, tannins and other substances. In its dry matter, cellulose accounts for 45-55%, starch, polysaccharides, mannose, etc. 25-35%, pectin 7%, and tannin about 2%. The pectin in the banana bulb is as much as 21%, and the mannose is more than 50%. These substances are very scarce materials in industries such as contemporary medicine, food, light industry and daily chemical industry. If these substances can be extracted to make them play a role in national economic constructi...

Claims

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Application Information

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IPC IPC(8): C12P7/10C07H13/08C07H1/08C08B37/06D21H11/00A23K1/06A23K10/38
CPCY02E50/10Y02P60/87
Inventor 张爱诚张永北陈武罗靖黎荣忠
Owner HAINAN BEIOU BIOENERGY DEV
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