Recovery processing method and technology of potato starch processing waste material

A processing method and potato starch technology, applied in the field of starch processing, can solve the problems of water pollution, high difficulty, waste of material and energy, etc., and achieve the effects of reducing pollution and improving recycling rate.

Active Publication Date: 2017-06-09
湖北金悦农产品开发有限公司 +1
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AI-Extracted Technical Summary

Problems solved by technology

[0003] However, due to the high concentration of organic matter in potato starch wastewater and weak acidity, it is currently difficult to use common biochemical treatment methods for potato starch w...
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Method used

Embodiments of the present invention also provide a kind of recycling processing technology of potato starch processing waste, it comprises the recycling processing method of above-mentioned potato starch processing waste, the recycling processing technology of this potato starch processing waste, the starch produced by saccharomyces The enzyme decomposes the starch in the potato starch processing waste into glucose for its own growth activities, so as to achieve the purpose of consuming starch and extracting other substances (such as soluble protein, cellulose, etc.), and finally realizes the recycling and reuse of potato starch waste, improving the Utilization of material resources.
Further, in the process of carrying out fermentation, considering the effect of mass transfer dissolved oxygen and the space occupied by foam during fermentation, it is necessary to control the ratio that the volume of feed liquid accounts for the total volume of the tank, that is, the charging coefficient, this The fermenter filling coefficient of embodiment is 60-80%, is preferably 70%, has guaranteed the dema...
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Abstract

The invention discloses a recovery processing method and technology of a potato starch processing waste material, and relates to the field of starch processing. The recovery processing method of the potato starch processing waste material comprises the following steps: removing starch in the potato starch processing waste material by using a fermentation technology to extract soluble protein therein, specifically decomposing and converting the starch into glucose through a starch enzyme generated by metabolism of saccharomycetes, and then using the glucose to carry out aerobic respiration; finally using up the starch or the converted glucose by the saccharomycetes, wherein remaining soluble protein and cellulose are recovery processing products of the potato starch processing waste material. According to the recovery processing technology comprising the recovery processing method of the potato starch processing waste material, the pollution of the potato starch processing waste material on the environment can be reduced, and the utilization rate of material resources can be improved.

Application Domain

Peptide preparation methods

Technology Topic

CelluloseMaterial resources +8

Examples

  • Experimental program(6)
  • Effect test(1)

Example Embodiment

[0033] Example 1
[0034] A kind of recycling processing method of potato starch processing waste provided by the present embodiment, it comprises the following steps:
[0035] First, 21L of the first potato starch processing wastewater was added to a fermentor with a capacity of 30L, and the temperature in the fermenter was controlled to be 27.5°C, and the first fermentation was performed, and the fermentation time was 24 hours. In addition, from the beginning of the first fermentation, the oxygen capacity of the fermentation liquid in the fermenter is always maintained at more than 30%. Specifically, it is controlled by adjusting the air delivery flow of the oxygen delivery pipeline in the fermenter.
[0036] Secondly, in the first fermentation process, the second potato starch processing wastewater is treated with saccharification yeast and sterilized, and after the first fermentation is completed, the sterilized second potato starch processing wastewater It is added to the culture solution after the first fermentation for the second fermentation, the fermentation time is 100 hours, the fermentation temperature is 27.5°C, and the amount of the second potato starch processing wastewater added is 1 liter per day.
[0037] Again, after the second fermentation, the temperature in the fermenter was controlled to remain unchanged, and the glucose solution prepared from the yeast treated wastewater was continuously added to the fermenter, so as to carry out the third fermentation, wherein the amount of sugar supplementation was 15g. / day added, continued to add 140 hours to stop.
[0038]Finally, after the third fermentation is completed, starting from the stop of sugar supplementation, the temperature in the fermentation tank is kept unchanged, and the fourth fermentation is carried out. The fermentation time is 30 hours, and the final remaining soluble protein and cellulose obtained are potatoes. Recycled processing product of starch processing waste.
[0039] This embodiment also provides a process for recycling potato starch processing waste, which includes the recycling and processing method for potato starch processing waste described above in this embodiment.

Example Embodiment

[0040] Example 2
[0041] A kind of recycling processing method of potato starch processing waste provided by the present embodiment, it comprises the following steps:
[0042] First, 21L of the first potato starch processing wastewater was added to a fermentor with a capacity of 30L, and the temperature in the fermenter was controlled to be 27.5°C, and the first fermentation was performed, and the fermentation time was 24 hours. In addition, from the beginning of the first fermentation, the oxygen capacity of the fermentation liquid in the fermenter is always maintained at more than 30%. Specifically, it is controlled by adjusting the air delivery flow of the oxygen delivery pipeline in the fermenter.
[0043] Secondly, in the first fermentation process, the second potato starch processing wastewater is treated with oil yeast and sterilized, and after the first fermentation is completed, the sterilized second potato starch processing wastewater is added The second fermentation is carried out in the culture solution after the first fermentation, the fermentation time is 100 hours, the fermentation temperature is 27.5°C, and the amount of the second potato starch processing wastewater added is 1 liter per day.
[0044] Again, after the second fermentation, the temperature in the fermenter was controlled to remain unchanged, and the glucose solution prepared from the yeast treated wastewater was continuously added to the fermenter, so as to carry out the third fermentation, wherein the amount of sugar supplementation was 15g. / day added, continued to add 140 hours to stop.
[0045] Finally, after the third fermentation is completed, starting from the stop of sugar supplementation, the temperature in the fermentation tank is kept unchanged, and the fourth fermentation is carried out. The fermentation time is 30 hours, and the final remaining soluble protein and cellulose obtained are potatoes. Recycled processing product of starch processing waste.

Example Embodiment

[0046] Example 3
[0047] A kind of recycling processing method of potato starch processing waste provided by the present embodiment, it comprises the following steps:
[0048] First, 21L of the first potato starch processing wastewater was added to a fermentor with a capacity of 30L, and the temperature in the fermenter was controlled to be 27.5°C, and the first fermentation was performed, and the fermentation time was 24 hours. In addition, from the beginning of the first fermentation, the oxygen capacity of the fermentation liquid in the fermenter is always maintained at more than 30%. Specifically, it is controlled by adjusting the air delivery flow of the oxygen delivery pipeline in the fermenter.
[0049] Secondly, in the first fermentation process, the second potato starch processing wastewater is treated with Schwann yeast and sterilized, and after the first fermentation is completed, the sterilized second potato starch processing wastewater It is added to the culture solution after the first fermentation for the second fermentation, the fermentation time is 100 hours, the fermentation temperature is 27.5°C, and the amount of the second potato starch processing wastewater added is 1 liter per day.
[0050] Again, after the second fermentation, the temperature in the fermenter was controlled to remain unchanged, and the glucose solution prepared from the yeast treated wastewater was continuously added to the fermenter, so as to carry out the third fermentation, wherein the amount of sugar supplementation was 15g. / day added, continued to add 140 hours to stop.
[0051] Finally, after the third fermentation is completed, starting from the stop of sugar supplementation, the temperature in the fermentation tank is kept unchanged, and the fourth fermentation is carried out. The fermentation time is 30 hours, and the final remaining soluble protein and cellulose obtained are potatoes. Recycled processing product of starch processing waste.
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Description & Claims & Application Information

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