46 results about "Bdellovibrio sp." patented technology

The invention discloses a method for controlling the total number of bacteria in fresh milk. Bdellovibrio is utilized for controlling the total number of bacteria, and the Bdellovibrio strain is a Bdellovibrio (Bdellovibrio sp.) BDFM05 and collected in the China Center for Type Culture Collection (CCTCC for short) with the collection number of M209172 on August 7, 2009. The method comprises the following specific steps of: (1) preparing the Bdellovibrio to Bdellovibrio swimming body bacterial liquid; and (2) adding the Bdellovibrio swimming body bacterial liquid prepared in the step (1) to the fresh milk, and standing or stirring for 1 to 8 hours, wherein the concentration of Bdellovibrio swimming body is at least 102 pfu / ml. The invention can effectively control the growth of the bacteria in the fresh milk, and is beneficial to keeping the original flavor and quality of cowmilk, improving rating number of the fresh milk in acquisition and reducing waste of raw milk caused by excessively rapid growth of the bacteria.

The invention discloses application of indole in promoting formation of a marine Bdellovibrio sp. BDE-1 bdelloplast, and belongs to the technical field of Bdellovibrio sp. BDE-1. According to the application of the indole in promoting the formation of the marine Bdellovibrio sp. BDE-1 bdelloplast, a factor, namely, the indole, is formed by utilizing a Bdellovibrio sp. BDE-1 promoting bdelloplast,so that the formation of high-density bdelloplast of the Bdellovibrio sp. BDE-1 is promoted; the research discovers that the indole has an obvious promoting effect on the formation of the bdelloplastof the Bdellovibrio sp. BDE-1; the cracking performance of the bdelloplast is not reduced; compared with a control group, the quality guarantee period of a high-density bdelloplast group is obviouslyprolonged; the high-density bdelloplast provided by the invention can inhibit vibrios which can cause human infection and food poisoning and can also inhibit the vibrios which can cause biological diseases in aquaculture, has a very good inhibiting effect on other food-borne pathogenic bacteria, and has wide cracking spectrum; the cracking effect of the bdelloplast is unchanged as compared with that of a BDE-1 mixture; and a bdelloplast promoting culturing method disclosed by the invention is simple and feasible, and can be popularized and used.

The invention discloses application of bdellovibrio bdelloplast in preparing a bacterial agent for preventing and controlling red mouth disease of scophthalmus maximus. The bdellovibrio is (Bdellovibrio sp.) BDM01. The application method for the bacterial agent comprises that: the bacterial agent is put into water body to prevent and control the red mouth disease of scophthalmus maximus to ensurethat the final concentration of the bdellovibrio bdelloplast in the water body is 10-10<7>pfu / mL, or a feed is soaked by the bacterial agent for controlling the red mouth disease of scophthalmus maximus for 15 to 45 minutes, and the concentration of the bdellovibrio bdelloplast in the bacterial agent is 10-10<7>pfu / mL. When the bdellovibrio bdelloplast is applied to preparing the bacterial agent for preventing and controlling the red mouth disease of scophthalmus maximus, the bacterial agent can effectively prevent and control the red mouth disease of scophthalmus maximus, has high safety when applied to aquaculture, is environment-friendly, does not cause pathogenic bacteria resistance, and has good application prospect.

The invention discloses a strain of marine bdellovibrio and the application of promoting the formation of bdellovibrio under ampicillin, and belongs to the technical field of bdellovibrio. The strain is Bdellovibrio sp. BDN‑1, which was preserved on November 27, 2017 at the Guangdong Provincial Microbiological Culture Collection Center, 5th Floor, Building 59, Compound 59, No. 100 Xianlie Middle Road, Guangzhou City , deposit number: GDMCC NO: 60291. The present invention utilizes ampicillin or ampicillin and calcium and magnesium ions to promote the formation of the Bdellovibrio Bdellovibrio Bideloplasts; it has been confirmed that it has the effect of significantly prolonging the shelf life of Bdellovibrio microbial preparations effect; and can effectively maintain the vitality of the bacterium in the Bdellovibrio microbial preparation for a long time. The method for promoting leech plastid cultivation provided by the invention is simple and feasible, is suitable for popularization and use, and is expected to contribute to the prevention and control of diseases in the aquaculture industry.

The invention in particular relates to an application of a bdellovibrio sp. leech plasmid in cultivating marine products such as penaeus monodon, and the like. The invention is realized by adding a bdellovibrio sp. leech plasmid to the water body and the feeds. The invention is realized specifically based on cultivation pond conditions, preparation before stocking, shrimp postlarvae selecting andstocking, feeding management and water environment management in the cultivation period. The invention is characterized by adding a bdellovibrio sp. leech plasmid bacterium solution to the water bodyand ensuring the concentration of the bdellovibrio sp. leech plasmid in the water body to be 101-107pfu / mL, simultaneously soaking the feeds in the bdellovibrio sp. leech plasmid bacterium solution with the concentration of 101-107pfu / mL for 30 minutes and changing water once every 30 days in the cultivation period. The invention provides a method for cultivating organisms. The method has the advantages of environment friendliness, safety, no pollution, obvious effect and capabilities of improving the water quality, promoting growth of penaeus monodon, improving the immunity and improving thesurvival rate, thus having wonderful development prospect. The invention has very important significance in improving the economic benefits and eating safety and guaranteeing human health.