Method for determining hemicellulose content in straw feed through glucose reducing process
A technology of hemicellulose and straw feed, which is applied in the direction of material analysis, measuring device, and test sample preparation through optical means, which can solve the problems of high feed cost, high corn cost, feed shortage, etc., and achieve high accuracy High, easy to operate, simple method effect
Inactive Publication Date: 2017-12-29
张家港保税区鑫和成国际贸易有限公司
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Problems solved by technology
[0002] Animal husbandry is facing many problems, and the shortage of feed is one of them. The feed cost of large-scale farms has begun to rise, and the feed cost of some farms accounts for more than 70% of the total cost of feed. This is because the main feed is grain. It's corn, and corn is getting more expensive
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Embodiment Construction
[0017] The present invention is further illustrated by the following examples: According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the specific material ratios, process conditions and results described in the embodiments are only used to illustrate the present invention, and should not and will not limit the present invention described in detail in the claims.
[0018] The main components of corn stalks are cellulose, hemicellulose and lignin. It also contains some other components such as crude protein and reducing sugars. Pretreatment is one of the key steps in the preparation of straw biological feed. A reasonable pretreatment method can change the component content and crystal structure of corn stalk raw materials, and can provide great gains for subsequent enzymatic hydrolysis steps.
[0019] The corn stalk material is crushed into powder, the crushed straw and 1% dilute sulfuric acid...
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Abstract
The invention discloses a method for determining hemicellulose content in a straw feed through a glucose reducing process. The method comprises the following steps: (1) adding a calcium nitrate solution into a straw sample, heating and boiling; (2) diluting a filtering sample, using water for repeatedly washing the sample, drying at 60-80 DEG C and then adding hydrochloric acid and treating for 40-45 minutes in boiling water bath; (3) dropping a drop of phenolphthalein, using sodium hydroxide for neutralizing till becoming rose color, using distilled water for washing the filter residue, measuring the volume of washing liquor, measuring 540nm absorbency and calculating the hemicellulose content according to a glucose standard curve regression equation. According to the invention, the method is simple, the operation is easy, the accuracy is high and the method has positive guiding significance for quantitatively utilizing energy of biomass and developing the related equipment.
Description
Technical field [0001] The application relates to a corn stalk feed, in particular to a method for measuring the content of hemicellulose in the stalk feed through a reducing sugar method. Background technique [0002] Animal husbandry is facing many problems. The shortage of feed is one of them. The cost of feed in large-scale farms has begun to rise. The cost of feed in some farms accounts for more than 70% of the total cost of feed. This is because the main feed uses grain. It is corn, and the cost of corn is increasing. [0003] Corn is not only a heavy feed, but also an important coarse grain and industrial raw material. In today's society where the area of arable land is declining, the annual output of corn is declining year by year, and its demand is due to the development of animal husbandry and the expansion of ethanol factories. And keep rising. This has caused the price of feed for animal husbandry to continue to rise. [0004] In view of this, the development of corn...
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IPC IPC(8): G01N21/31G01N1/28G01N1/38G01N1/44
CPCG01N21/31G01N1/28G01N1/38G01N1/44G01N2021/3185
Inventor 陈庆
Owner 张家港保税区鑫和成国际贸易有限公司