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An anaerobic fungus and method for producing formic acid by fermenting rice straw with it

A rice straw and fungus technology, applied in the biological field, can solve the problems of high pollution, low utilization rate, high consumption, etc., and achieve the effect of simple process

Active Publication Date: 2019-06-04
GANSU ACAD OF SCI INST OF BIOLOGY
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  • Abstract
  • Description
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Problems solved by technology

The development and utilization of straw resources can not only alleviate the tension of rural fertilizers, feed, energy and industrial raw materials, but also protect the rural ecological environment and promote the sustainable and coordinated development of the rural economy. The situation of high pollution, low utilization rate, and low output has not been rationally developed and utilized, and the energy feed resources in animal husbandry are in short supply. Solving the competition for food between humans and animals, improving the utilization rate of feed, developing and utilizing new feed resources, and solving energy problems have become urgent problems. The problem

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  • An anaerobic fungus and method for producing formic acid by fermenting rice straw with it

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Embodiment Construction

[0017] The present invention will be described in further detail below.

[0018] 1. Isolation and identification of yak rumen anaerobic fungi

[0019] 1.1 Materials

[0020] 1.1.1 Overview of sampling sites and collection of yak rumen fluid

[0021] The research site is located in Wushaoling Pasture, Tianzhu Tibetan Autonomous County, Gansu Province (102°47′13″E, 37°10′37″N), with an annual average temperature of -1-1.3°C, a maximum temperature of 26°C, and a minimum temperature of -30°C , the annual precipitation is 265-632mm, the altitude is 3100-3400m, it belongs to the cold plateau climate type, the temperature changes violently, the sunshine is strong, the rainfall is abundant, the plant growth period is about 120 days, and the alpine meadow is the main grassland type. Wild pastures include fescue, sedge, bluegrass, kobresia, Tibetan kobresia, kobresia zebras, Oxytropis chinensis, golden dewberry, villia, Polygonum viviparum and Kobresia capillifolia main dominant spec...

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Abstract

The invention discloses an anaerobic fungus and a method for producing formic acid by fermenting rice straw with the same, belonging to the field of biology. The anaerobic fungus (Piromyces sp.) Yak TZF, CGMCC NO: 13392 has the ability to produce formic acid in large quantities. The method for producing formic acid by fermenting rice stalks with the anaerobic fungus comprises the following steps: taking rice stalks and pure culture of anaerobic fungi (Piromyces sp.) Yak TZF as the inoculum, adding compound antibiotics and prepared chloramphenicol at the same time, After anaerobic culture at 39°C for 7 days, the concentration of formic acid produced reached 27.9mM. The present invention is characterized in that: 1. The method and process of the present invention are more convenient and convenient, mainly to ensure an anaerobic environment. 2. The method of the present invention only needs to pulverize and air-dry the stalks, and does not need to peel the stalks. 3. The concentration of formic acid produced by the method of the present invention is very high.

Description

technical field [0001] The invention belongs to the field of biology, and in particular relates to an anaerobic fungus and a method for producing formic acid by fermenting rice straw with it. Background technique [0002] Energy shortage and environmental crisis are two major problems restricting the economic and social development of the world today. Countries around the world are actively seeking new energy outlets while striving to improve the efficiency of existing energy utilization. Biomass energy is the fourth largest energy after coal, oil and natural gas in the world today, accounting for about 14% of the world's total energy consumption. Biomass energy has gradually become an important new alternative energy because of its renewable, abundant resources, low price and environmental protection. Crop straw is an important part of biomass energy, contains huge nutrients, is an important energy and resource, and is also an important renewable biological resource. In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/14C12P7/40C12R1/645
CPCC12P7/40C12P2203/00C12N1/145C12R2001/645
Inventor 魏亚琴王治业
Owner GANSU ACAD OF SCI INST OF BIOLOGY
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