Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Oat acidovorax avenae strain capable of biodegrading natural estrogen and application thereof

A oat acid bacteria, biodegradation technology, applied in the direction of microorganism-based methods, microorganisms, biological water/sewage treatment, etc., can solve the problems of not being degraded, unable to effectively remove estrogen, etc., to achieve the effect of increasing the rate

Inactive Publication Date: 2011-03-16
BEIJING NORMAL UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional active sewage treatment systems cannot effectively remove estrogen in raw water. Although estrone and 17β-estradiol can be partially degraded, 17α-ethinyl estradiol is basically not degraded, resulting in ng / L Levels of estrogen were detected (Ternes et al., Sci.Total.Environ.Vol.225, 91-99, 1999)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Oat acidovorax avenae strain capable of biodegrading natural estrogen and application thereof
  • Oat acidovorax avenae strain capable of biodegrading natural estrogen and application thereof
  • Oat acidovorax avenae strain capable of biodegrading natural estrogen and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] 1. Isolation, screening and preservation of the Acidovorax avenae SS-1 strain provided by the present invention

[0016] The activated sludge in the denitrification and phosphorus removal process system of the sewage treatment plant was collected as a microbial source, and transported back to the laboratory under refrigeration. Prepare an inorganic medium containing 50mg / L estrogen as the sole carbon source, and inoculate it in a 500mL Erlenmeyer flask with 100mL of the above-mentioned inorganic medium according to the inoculum amount of 2.5% activated sludge. The inorganic component contained in the medium is K 2 HPO 4 , 0.1g / L; (NH 4 ) 2 HPO 4 , 0.1g / L; MgSO 4 ·7H 2 O, 0.02g / L; FeCl 3 , 0.01g / L; CaCl 2 2H 2O, 0.1g / L; NaCl, 0.1g / L. Use 2‰ acetic acid to adjust the pH value of the medium to 7.0-7.2, and sterilize it in an autoclave at 121°C for 20 minutes. After the temperature drops to about 30°C, inoculate it under the ultra-clean bench. After sludge inocul...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an oat acidovorax avenae strain capable of biodegrading natural estrogen and the application thereof, and the preservation code is CGMCC No. 3633; natural estrogen serves as the only one carbon source and is grown, can degrade estrone, 17Beta-estradiol and estriol with high efficiency, and can be used for a microbial technology for removing estrogen. The SS-1 strain can degrade the estrone with the initial concentration of 1mg / L by 99 percent within 12h, and degrade the 17Beta-estradiol and estriol with the initial concentration of 1mg / L by 99 percent within 24h. Estrone is generated in the degradation process of 17Beta-estradiol, and the estrone is also gradually degraded. Because the acidovorax avenae SS-1 strain has the property of effectively degrading the natural estrogen in the environment, and thereby can be applied in a technology for controlling wastewater and sewage which contain estrogen or a soil restoration technology.

Description

technical field [0001] The invention relates to an Acidovorax avenae bacterial strain capable of biodegrading natural estrogen and application thereof, in particular to using the Acidovorax avenae to effectively degrade estrone, 17β-estradiol and / or estriol. Background technique [0002] Estrone (Estrone, E1), 17β-Estradiol (17β-Estradiol, E2), and Estriol (E3) are natural estrogens, which are secreted by the ovaries of humans and animals, and will enter with feces and urine. Sewage treatment plants, soil, farmland and other environments. The synthetic estrogen 17α-ethinylestradiol (17α-Ethynylestradiol, EE2) is the main component of low-dose oral contraceptives, drugs for treatment of irregular menstruation and menopausal drugs, and will also be excreted into sewage treatment plants with feces and urine. figure 1 is the chemical structural formula of the above estrogen. The estrogen emitted by the livestock breeding industry will also be treated and disposed of through co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C02F3/34B09C1/10C12R1/01
Inventor 史江红宿凌燕曹金铃韩蕊
Owner BEIJING NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com