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Process for microbial fermentation of sugar-containing substrates and use of hydrogen in atomic, ionic or gaseous form in the process

A microbial fermentation and microbial technology, applied in the field of biochemical processes, can solve problems such as the role of hydrogen that are not specifically described

Inactive Publication Date: 2019-12-06
MAHLE METAL LEVE +2
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  • Claims
  • Application Information

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Problems solved by technology

[0057] While there are many literature references describing fermentation processes to improve yields in the production of ethanol, the prior art does not specifically describe the role of hydrogen in metabolic fermentation processes for the purpose of selective production, which constitutes the original technology of the innovation
Moreover, all developed processes seek to increase the practical yield up to the theoretical limit of G-L yield

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  • Process for microbial fermentation of sugar-containing substrates and use of hydrogen in atomic, ionic or gaseous form in the process
  • Process for microbial fermentation of sugar-containing substrates and use of hydrogen in atomic, ionic or gaseous form in the process
  • Process for microbial fermentation of sugar-containing substrates and use of hydrogen in atomic, ionic or gaseous form in the process

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Embodiment Construction

[0078] As mentioned earlier, the processes for the production of alcohols by the fermentation of sugars are well known to those skilled in the art, and in terms of their efficiency limitations, the chemical equation proposed by Guy Lussac in 1810 (equation ( 1)). According to this formula, in today's existing technology, the fermented glucose molecule can produce at most 2 ethanol molecules and 2 carbon dioxide molecules, as shown in equation (2).

[0079] C 6 h 12 o 6 + Alcoholase → 2C 2 h 5 OH+2CO 2 (equation (2))

[0080] 1kg 0.511kg 0.488kg

[0081] As a conversion, one can alternatively obtain the following equation, considering the fermentation of sucrose substantially present in cane sugar:

[0082] C 12 h 22 o 11 +H 2 O+ convertase → 4C 2 h 5 OH + 4CO 2 (equation (3))

[0083] 1kg 0.538kg 0.514kg

[0084] One can see from equations (2) and (3) that in the fermentation of glucose, the condition of maximum mass efficiency is 0.511 (m / m) mass / mass, and ...

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Abstract

The present invention relates to a biochemical process for selectively increasing the production of alcohols by fermentation of sugar-containing substrates, in which hydrogen is input to microorganisms, and the fermentation process includes sugar-containing wort, fungal or bacterial nutrient for microorganisms. Hydrogen is produced by applying pre-electrolysis or full-electrolysis voltage to the fermentation medium in direct or alternating current. Microorganisms using atomic, ionic or gaseous hydrogen input into fermentation media for the selective production of alcohols are also described.

Description

technical field [0001] The present invention relates to a biochemical process for selectively increasing the production of alcohols by microbial fermentation of sugars. [0002] In particular, the process in which suitable concentrations of hydrogen are fed to the microorganisms, which can be carried out continuously, semi-continuously or in batches, includes sugar worts, microorganisms of the fungal or bacterial genus, with naturally occurring or especially Selected or adapted traits, or reconstituted traits, the flocculated strands are suspended in the fermented wort or in a fixed bed with micronutrients. Background technique [0003] Alcohols are organic compounds having hydroxyl functional groups (-OH) bound to one or more saturated carbons, comprising one or more carbon atoms. The most well-known of these compounds is ethanol, or alcohol. The latter can be found in alcoholic beverages, in cleaning products, in pharmaceutical products, such as chemical solvents, and al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/06
CPCC12P7/06Y02E50/10
Inventor 安东尼奥·佩德罗·洛伦索马萨尤科·卡瓦卡米若泽·弗朗西斯科·洛佩斯
Owner MAHLE METAL LEVE
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