Multi-functional dry flocculating yeast powder and application thereof

A multi-functional, yeast-based technology, applied in water/sludge/sewage treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve problems such as cumbersome operating procedures and inaccurate characterization, and achieve the protection of life safety, biological The effect of high safety and quality improvement

Pending Publication Date: 2019-07-30
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For most workers, they can only test some indicators of water quality, and mostly rely on visual inspection and experience to judge water quality; water and poison detection boxes suitable for field also have problems such as cumbersome operating procedures and inaccurate qualitative determination.

Method used

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  • Multi-functional dry flocculating yeast powder and application thereof
  • Multi-functional dry flocculating yeast powder and application thereof
  • Multi-functional dry flocculating yeast powder and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]The yeast of this product comes from the production of co-production yeast or waste grains produced by ethanol fermentation using flocculation yeast. An example is a specific process of using flocculating yeast to carry out alcoholic continuous fermentation and co-production of yeast technology: first, the yeast strains preserved on the slant of the test tube are inserted under aseptic conditions into 100mL growth medium (yeast powder 3g / L, peptone 3g / L, glucose 30g / L) in a 250mL Erlenmeyer flask, cultured on a shaking table at a temperature of 30°C and 150r / min. After 24 hours of culture, let it stand to allow the yeast particles to settle, pour out the supernatant, and replace it with fresh Then change the fresh medium once a day. When the concentration of granule yeast in the Erlenmeyer flask is high, expand the culture in separate bottles to reach the required amount of yeast. Then the shake flask seeds and the growth medium were connected to the seed fermenter, and...

Embodiment 2

[0036] This embodiment mainly describes a usage mode of the product when it is necessary to purify wild water sources and first conduct water quality testing for toxicity. This product is divided into powder form and cake form. For these two forms of products, the method of use in testing toxicity is the same: take 100mL of the water source to be tested in the container, open the dry yeast powder packaging bag, put it directly into the water, and wait for use The small ORP monitor monitors the oxidation-reduction potential of the flocculated yeast culture solution in the container, and the activity of the yeast cells in the culture solution can be reflected by the level of ORP. During the measurement, drinkable water was used as a control, mixed with 1g dry powder and 100ml water sample to be tested, and the portable ORP device was inserted into the mixed solution to automatically record the ORP decline curve within 10 hours of measurement. If the ORP value of the tested aqueo...

Embodiment 3

[0038] For a large natural water source, it is necessary to take out the water to be purified from the natural water source and put it in a container, such as a large bucket, a small kettle, etc., add an appropriate proportion of dry powder products or cake products, and wait a little longer for the flocculation yeast of the dry powder. It will be activated and grow and reproduce in large quantities. Due to its flocculation characteristics, a flocculation layer with a certain thickness and density can be formed in the container. During the flocculation process, the flocculated cells can settle the insoluble impurities in the water, absorb heavy metal ions, and reduce the high price in the water. State heavy metal ions, degrade soluble organic matter, and finally realize the purification of water quality and the formed flocs settle in the lower layer of the container. At this time, the clarified liquid in the upper layer is purified drinking water. figure 2 It is a schematic di...

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PUM

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Abstract

The invention discloses a multi-functional dry flocculating yeast powder. The dry yeast powder is formed by freeze-drying yeast with a flocculation function in a flocculated state, and the dry functional flocculation yeast powder integrates the functions of edible, water purification and water quality toxicity detection. A compressed solid product is used as a food ration for field work or disaster emergency, and can be used as a brewing drink after being ground into powder; the dry multi-functional flocculating yeast powder can also be co-precipitated by using the flocculation characteristicof the dry multi-functional flocculating yeast powder to be used as a water purifying agent to purify a wild water source; the product can also be put into a water source for cultivation, and the primary toxicity test of water quality can be carried out by measuring the yeast growth conditions; the product also has various advantages of being rich in nutrients, light in weight and easy to carry.

Description

technical field [0001] The invention relates to the field of food and water purification technology, and to a product that provides food, water quality purification and water quality toxicity testing at the same time for field work or disaster emergency response, and especially relates to a multi- Functional flocculating yeast dry powder. Background technique [0002] Food and water are critical for field work. At present, the rations for field work are mainly composed of soft cans and hard cans of various staple foods and non-staple foods. Although this type of ration has the advantages of small size, light weight, and convenient fast food compared with traditional food, it basically meets the basic energy needs of field workers. However, for soft-packed cans, it is necessary to use a non-flame ration heater to heat them; for hard cans, solid fuel heating can be used to heat them, and the heater and fuel will be carried. To a certain extent, it increases the load and red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/14A23L29/00A23L27/00A23L27/10A23L2/39A23L2/52C02F3/34
CPCA23L33/14A23L29/03A23L27/00A23L27/10A23L2/39A23L2/52C02F3/347A23V2002/00A23V2200/30A23V2250/76
Inventor 刘晨光刘倩白凤武
Owner SHANGHAI JIAO TONG UNIV
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