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103 results about "Bacilli class" patented technology

Bacilli refers to a taxonomic class of bacteria. It includes two orders, Bacillales and Lactobacillales, which contain several well-known pathogens such as Bacillus anthracis (the cause of anthrax).

Tubercle bacillus target recognizing and counting algorithm based on diverse characteristics

The invention relates to the field of medical image processing and mode recognition, in particular to a tubercle bacillus target recognizing and counting algorithm based on diverse characteristics. The algorithm comprises the following steps of: image preprocessing: carrying out image reinforcement and constructing median filter and Gaussian filter on a tubercle bacillus microimage; color image partition: carrying out fixed threshold partition based on HSV (Hue-Saturation-Value) color space on a preprocessed image and then carrying out adaptive threshold partition which is based on CIE L*a*b* color space and keeps a geometric shape of a target; communication block morphological analysis and target recognition: carrying out communication block analysis on the partitioned image; and tubercle bacillus target counting: estimating the quantity of tubercle bacillus targets in the image by utilizing a histogram statistics and multistrategy calculation method. The invention can effectively extract the bacillus targets in the tubercle bacillus microimage subjected to acid-fast stain from background and impurities and carry out accurate counting, thereby realizing the automation and the intellectualization of the detection of tubercle bacilli.
Owner:常州超媒体与感知技术研究所有限公司

Process for preparing viable bacillus subtilis preparation

The invention relates to a process for preparing a viable bacillus subtilis preparation. According to the process, after bacillus subtilis undergoes first-stage germ amplification culture and second-stage germ amplification culture, the bacillus subtilis is inoculated to a fermentation culture medium for culture, and the number and conversion ratio of bacilli is increased through feeding a supplement carbon source during fermentation, so that the unit yield is increased remarkably, and the unit cost is reduced; at the end of fermentation, fermentation liquor is concentrated with a vacuum film concentrator, so that soluble synergistic substances, growth promoting substances and bacteriostatic active substances can be effectively recovered from the fermentation liquor; the concentrated fermentation liquor is subjected to drying and granulating by multi-level low-temperature spray-fluidized drying equipment, granules are subjected to sorting, fine powder gathered by a cyclone separator returns and is granulated again, and then, a bacillus subtilis product, of which the CFU of powder per gram is not less than 2.0*10<11>, is obtained; exhaust gas is treated and is discharged after reaching standard. The process has the advantages that effective substances in the fermentation liquor can be reserved to the maximum, the quality of the product is high, the equipment utilization ratio is high, the retention of biological activity is relatively good, waste gas and waste water are discharged after reaching standard, and large-scale industrial production can be achieved.
Owner:HUBEI BIOPESTICIDE ENG RES CENT

Nano granule water purifying material for removing bacteria and virus, and preparation thereof

The invention relates to a series of nano-particle water purification materials, which take quartz sand or zeolite particle as a substrate, nanometer aluminum (iron) oxide or nanometer aluminum (iron) oxidized hydrogen oxide as a modified filtration coating, and can effectively and completely remove bacilli and virus from wastewater and sewage. The invention also relates to a preparation method of the nano-particle water purification materials. In the preparation method, acidic solution with 40 to100 meshes of quartz sand or 60 to120 meshes of clinoptilolite is poured into secondary deionized water, uniformly mixed and heated, nano-aluminum powder, aluminum nitride powder or iron powder is poured into the acidic solution and ultrasonically mixed and ethanol solution of ester is then poured into the mixed acidic solution, ultrasonically mixed again, filtrated and dried so as to gain nano-fibriform AlO(OH) or FeOOH which is the particle water purification materials of filtration coating which are further roasted so as to gain Gamma-Al2O3 or Fe2O3 which is the particle water purification materials of filtration coating. The nano-particle water purification materials of the invention have the advantages of strong removal ability, high cleanliness, great saturated adsorption capacity, etc.
Owner:JILIN UNIV

Crystal pear biological antistaling agent based on mixed application of cryptococcus laurentii and antagonistic bacillus, preparation method and application thereof

The invention discloses a crystal pear biological antistaling agent based on mixed application of cryptococcus laurentii and antagonistic bacillus, a preparation method and application thereof. 12 strains of antagonistic bacilli are respectively employed for mixed application with the cryptococcus laurentii, they all can improve the postharvest biocontrol effect of crystal pears, and four strains can reach the best effect. Finally, the application concentration and ratio of the antagonistic bacillus and cryptococcus laurentii for a best mixed application effect are determined. Every 1ml of a control agent contains 106-109 antagonistic bacilli and 106-109 cryptococcus laurentii, and the best control effect can be ensured when the bacterial number ratio is 1:1. The cryptococcus laurentii and antagonistic bacillus involved in the biological antistaling agent both have the characteristics of safety and high efficiency, and have the advantages of environmental friendliness, and outstanding biocontrol effects, etc. the mixed bacteria antistaling agent provided by the invention can further reduce the application of chemical bactericides, and has important significance to food safety, environmental protection, agricultural income increase and synergy, and sustainable social development, etc.
Owner:ZHEJIANG UNIV
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