31results about How to "Shorten the delay period" patented technology

The invention discloses a strain of saline-alkali-tolerant Paenibacillus polymyxa and its application. The strain is Paenibacillus polymyxa PAPM17 isolated from cotton rhizosphere soil in saline-alkali land, and it has been preserved in the General Microorganism Center of China Committee for the Collection of Microbial Cultures on July 17, 2018. The preservation number is CGMCC No.16118 . The strain can survive in saline-alkali soil, has better degradation effect on gallic acid, p-hydroxybenzoic acid, ferulic acid and other plant autotoxic substances, can reduce continuous cropping obstacles caused by them, and can promote the growth of cotton cultivated in saline-alkali soil and increase production. The strain was inoculated in the fermentation medium with soybean meal powder, corn steep liquor and molasses as the main nutrient source, fermented and then sprayed and dried with auxiliary agents to obtain the live bacteria preparation. High stability in the process.

The invention belongs to the technical field of cross application of food, health care products, medicine and the like, and particularly relates to application of a traditional Chinese medicine preparation to promoting multiplication of lactobacillus bulgaricus and / or secreting lactic acid. The traditional Chinese medicine preparation is prepared from the following components in parts by weight: 3-50 parts of radix et rhizoma rhei, 3-50 parts of moutan bark, 5-30 parts of peach seeds, 10-50 parts of of Chinese waxgourd seeds and 5-20 parts of mirabilite. The traditional Chinese medicine preparation has the advantages that the firstly provided traditional Chinese medicine preparation can integrally promote multiplication of lactobacillus in different periods, shortens the delay period of cultures, and prolongs rapid multiplication growth logarithmic phase, a high-level multiplication stable phase is maintained, the integral multiplication level and the number of the cultures are increased, enlargement and multiplication of cultures are facilitated, and the yield of metabolite L-lactic acid which is beneficial for physical health and generated by the cultures can be improved obviously. Therefore, the effects of the traditional Chinese medicine preparation on promoting multiplication of lactobacillus bulgaricus and secretion of lactic acid have good application prospects.

The invention belongs to the technical field of engines, and relates to a lean-burn engine and an automobile. The lean-burn engine includes a water spray system and an electronic control unit; the water spray system includes an air passage sprinkler, a pressure sensor and a water supply device, and the air passage sprinkler It is connected to the water supply device through a water pipe, and the pressure sensor is used to detect the pressure value of the water pipe and send it to the electronic control unit. The sprinkler is connected to the pressure sensor signal. When the engine is in different working conditions, the pressure value of the water pipe changes, and the pressure sensor sends corresponding signals to the electronic control unit according to the different pressure values ​​of the water pipe, and the electronic control unit controls the airway sprinkler. Adjust the amount of water spray. In the lean-burn engine of the present application, the electronic control unit controls the airway water injector to adjust the water injection amount according to different engine working conditions (loads), so as to realize efficient and clean combustion of the engine.

The bacteria-free solid fermentation apparatus includes a liquid seed tank, a solid culture medium sterilizing tank with lower cover connected to the liquid seed tank via pipeline with valve, a 100-level superclean operation platform connecting the lower port of the solid culture medium sterilizing tank and the inoculating tube, a 100-level superclean chamber with mechanical vibrating sieve and culture shallow tray, honeycomb culture device or conveyer belt type culture device, and a solid fermentation reactor with air inlet connected via a tractor to the culture device. The bacteria-free manipulation process includes preparing seed, sterilizing culture medium, bacteria-free inoculation, bacteria-free charging, bacteria-free solid fermentation and other links to prevent bacteria pollution in solid fermentation.

To position an imaging subject (16) in an imaging or therapy system (10), an imaging subject (16) is arranged on a linearly translatable tabletop (26) disposed on a movable trolley (30). A position ofa region of interest (24) of the imaging subject along the linearly translatable tabletop is selected using an elongated position selector (40, 40', 40'') that is elongated in a translation direction(z) of the linearly translatable tabletop (26). After the selecting, the movable trolley is docked with the imaging or therapy system (10). After the docking, the tabletop is linearly translated to move the imaging subject to the imaging or therapy system, the amount of linear translating being based on the selected position of a region of interest along the linearly translatable tabletop.

The invention relates to a method for preparing grease rich in DHA and special equipment therefor. The method comprises the following steps: in an aeration fermentation tank containing a fermentation culture medium, cultivating schizochytrium CGMCCNo.7693 in a mechanical stirring manner; and extracting and recovering the grease rich in DHA from schizochytrium cells, wherein the culture process comprises continuous fed-batch cultivation of a medium, sedimentation-adverse perfusion of cells, and periodical discharge of fermentation liquor; the special cell sedimentation tank comprises a primary sedimentation tank, a secondary sedimentation tank, seal covers, openings and outlets; the primary sedimentation tank and the secondary sedimentation tank are arranged at an interval and are of conical shapes in appearance; the seal covers are arranged on the primary sedimentation tank and the secondary sedimentation tank; the openings are formed in the seal covers; the outlets are formed in the bottoms of the primary sedimentation tank and the secondary sedimentation tank; a liquid inlet pipe is arranged on the primary sedimentation tank; a supernate discharge pipe is arranged at the upper part of the secondary sedimentation tank; the primary sedimentation tank and the secondary sedimentation tank are connected through a communicating pipe; and the outlets are connected with a fermentation tank through concentrated cell reflux pumps and pipes. According to the method and the special cell sedimentation tank, the problems in a micro algae continuous cultivation technique that cells are difficultly intercepted and cell loss is serious are solved, the special cell sedimentation tank has the advantages of reduction of manual operation, easiness in automatic production, short production cycle and the like.

The invention provides a method for producing organic acid at a high production rate through fermentation of intermittent backflow cells, which comprises the following steps of: performing filtration sterilization on a fresh culture medium, introducing into a fermentation tank, and inoculating high-density seed liquor into the fermentation tank; controlling organic acid fermentation production conditions of the used strain, when fermentation is performed until a small amount of sugar residue is in fermentation liquor, discharging partial or all fermentation liquor to a filtering device for processing, simultaneously supplementing a fresh germ-free culture medium into the fermentation tank, returning intercepted strain cell concentrated solution to the fermentation tank to serve as a production strain for later use, wherein the filtered liquor is used for extracting organic acid; and only when the production rate of the organic acid is obviously reduced, not returning the strain cell concentrated solution intercepted by the filtering device is not to the fermentation tank any more, and supplementing new high-density seed liquor and a fresh germ-free fermentation culture medium into the fermentation tank so as to perform a new round of production of organic acid at the high production rate through fermentation of the intermittent backflow cells. Through the method, high biomass and high production rate are always kept in the organic acid fermentation production process, and the method has high industrial application value.