Method for improving purity of xylose solution
A xylose and purity technology, applied in the field of improving the purity of xylose liquid, can solve the problems of reducing the total yield and influence of xylose, and achieve the effects of improving the total production yield and economic benefit, simple process and low operating cost
Inactive Publication Date: 2009-06-10
FUTASTE PHARM CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a method for purifying the purity of xylose liquid, so as to solve the problem that in the prior art, while removing glucose in the separation process, a part of xylose is also removed, which affects and reduces the total yield of xylose
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Experimental program
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Embodiment Construction
[0009] The method for purifying xylose liquid purity described in the technical scheme of the present invention will be further described below in conjunction with specific examples:
[0010] 1. Yeast activation: at 1.5m 3 Add 225kg of immobilized yeast into the reactor, soak and disinfect with bleaching powder solution containing 0.15‰ available chlorine for 30 minutes, then soak the immobilized yeast statically with a glucose solution with a refractive concentration of 5% for about 24 hours, and detect the refractive concentration of the glucose solution When it is 1.2%, take a little activation solution, and use the plate counting method to determine that the number of yeast cells reaches about 2.5×10 8 pcs / ml, the activation is complete.
[0011] 2. Ingredients: within 10m 3 Add 8m to the storage tank 3 Refractive concentration is 10% xylose liquid (detecting its purity with liquid chromatography and consists of: xylose accounts for 79.5%, glucose accounts for 8.7%, ara...
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The invention discloses a method for improving the purity of a xylose solution, which belongs to the technical field of the production of functional sugar. The method consists of the process of: (1) yeast activation, in which immobilized yeast is added into a reactor, a bleaching powder solution is used to leach and disinfect for 30 minutes, then a disinfection solution is drained, and a glucose solution is added into the reactor to activate the immobilized yeast; (2) material distribution, in which the xylose solution is taken, the pH value of the xylose solution is adjusted to be between 2 and 10, phosphorous acid and urea are added into the xylose solution respectively to be stirred evenly, and the material distribution is finished; and (3) purification, in which the reaction temperature is controlled to be between 20 and 60 DEG C, the contact time of the xylose solution and the immobilized yeast is between 1 and 6 hours, the blasting is performed once each 1 hour, and each blasting is performed for 30 minutes. The xylose solution with high purity is obtained through the operation according to the conditions. The method improves the total production yield and economical benefit, and has the advantages of simple process, few added equipment, low operation cost and so on.
Description
technical field [0001] The invention belongs to the technical field of functional sugar production and relates to a method for improving the purity of xylose liquid. Background technique [0002] Xylose is mainly a functional sugar product prepared from corncobs, bagasse and other agricultural and sideline products through hydrolysis, purification, evaporation, crystallization, centrifugation, drying and other processes. It is widely used in light industry, food, chemical and other industries. Because it is extracted from plant waste, it often contains miscellaneous sugars such as glucose, resulting in low purity of xylose liquid, generally only 78-83%, which affects the crystallization of xylose and the improvement of total yield. According to production data, corncobs generally produce 5-10% glucose after acid hydrolysis, and the presence of this glucose seriously affects the crystallization of xylose. For the removal of glucose in the xylose liquid, it is reported that t...
Claims
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IPC IPC(8): C12P19/02C12R1/85
Inventor 王成福王星云田强张小宁刘晓娟李俊平
Owner FUTASTE PHARM CO LTD