41 results about "Alteromonas" patented technology

The invention relates to a marine bacterium, wherein the bacterium is characterized in that the bacterium is Alteromonas colwelliana A321 separated in seawater in Qingdao sea area. The preserving unit is CCTCC (China Center For Type Culture Collection) for short and the preserving number is M 2012132. The culture provided by the invention has the characteristics of simplicity in nutritional requirement, easiness in cultivation and short generation time. The growth temperature range of the bacterium is 10-40 DEG C, most preferably 28 DEG C. The growth pH range is 4-11, most preferably 7. The invention further discloses a method for producing a gel-type enteromorpha polysaccharide degrading enzyme by the Alteromonas and the gel-type enteromorpha polysaccharide degrading enzyme obtained by the method. The gel-type enteromorpha polysaccharide degrading enzyme produced by the method provided by the invention can efficiently degrade enteromorpha polysaccharide and can be used to preparation of enteromorpha polysaccharides. Compared with chemical methods, the method provided by the invention is simple in preparation process, high in product yield and stable in quality, active groups are not damaged in the preparation process, and activity study and development of polysaccharides are guaranteed.

The invention relates to marine bacteria capable of antagonizing two important pathogenic vibrios of marine culture and an application of the marine bacteria. The antagonistic bacteria are marine-derived pseudoalteromonas agarivorans and are preserved in the common microorganism center of the China General Microbiological Culture Collection Center, and the preservation number of the antagonistic bacteria is CGMCC No17154. The pseudoalteromonas screened by the method is separated from Antarctic ice sea water, and the marine bacteria capable of antagonizing important pathogenic vibrio anguillarum and vibrio alginolyticus in aquaculture is a biological prevention and control potential strain with high prevention and control efficiency, wide prevention and control range and good environmentalsafety, and has good development and application prospects.

The invention provides an isochrysis galbana propagation method. The highest propagation density of isochrysis galbana is increased by adding an algal beneficial bacterium separated from isochrysis galbana, and the plateau maintenance time of isochrysis galbana is prolonged. According to the method, one specific strain of the used phycomycetes beneficial bacteria screened from isochrysis galbana is an Alteromonas sp. NBU-A-0001 strain, and the preservation number of the phycomycetes beneficial bacteria is CCTCC M 2020010; according to the method disclosed by the invention, the propagation speed of isochrysis galbana is much higher than the microalgae culture speed of a conventional microalgae nutrient solution; the highest propagation density and the plateau period maintaining time are farlonger than those of a conventional culture nutrient solution, more microalgae can be supplied under the same water body condition, and meanwhile, due to the fact that the plateau period is usually not prone to decay, microalgae quantity control and production management in the actual shellfish large-scale production process are quite facilitated.

Extra-cellular product anti-biofouling against marine invertebrates which are common to the biofouling, which contains an extract of the supernatant of an Alteromonas sp. Culture. Anti-biofouling composition, comprising said extra-cellular product and a biopolymer. The use of said extra-cellular product for preparing a composition useful for inhibiting the marine micro- and macro-biofouling, and the process for preparing said extra-cellular product.

The invention discloses alteromonas and an application thereof in inhibiting the growth of red-tide algae. The collection number of the alteromonas 18# provided by the invention is CGMCC NO.5840. The invention also provides a method for preparing the extracellular extract of the alteromonas 18# with the collection number of CGMCC NO.5840. Proved by the experiment, the invention discovers the alteromonas 18#. The bacterium and extracellular products have the function of inhibiting the algae and can be used for inhibiting the red tide.

Genetically engineered organophosphorus acid anhydrolases (OPAA) with improved catalytic efficiency and relaxed stereospecificity are provided. The variants typically include a mutation at the residue corresponding to H343 of wildtype Alteromonas sp. OPAA. The mutation allows the OPAA enzyme to effectively process both VR enantiomers. The OPAA optionally include one or more mutations selected the residues corresponding to Y212, V342, and I215 of wildtype Alteromonas sp. OPAA which improve the enzyme's catalytic efficiency for VX and VR. A particularly preferred OPAA includes mutations at the residues corresponding Y212F, V342L, I215Y, and H343D relative to wildtype Alteromonas sp. OPAA. Compositions including an effective amount of OPAA to increase hydrolysis of an organophosphate, and methods of use thereof for treating subjects exposed to an organophosphate, or a surface or liquid contaminated with an organophosphate are also provided.

The present invention relates generally to methods and compositions useful for application to skin and hair comprising saccharide isomerate, Alteromonas ferment extract, and a dermatologically acceptable vehicle, wherein the composition is capable of moisturizing and / or improving the appearance and / or condition of skin and / or hair.

The invention discloses a whitening cream. The whitening cream comprises ascorbyl glucoside, alteromonas fermentation product extract, yeast extract and flos sophorae extract. The ascorbyl glucoside,the alteromonas fermentation product extract, the yeast extract and the flos sophorae extract added to the whitening cream cooperate with one another, so that the skin quality can be improved, the color difference of the skin can be adjusted, and the whitening effect can be realized from inside to outside.

The invention relates to the technical field of cosmetics, in particular to a soothing and moisturizing composition as well as a preparation method and application thereof. According to the invention, the spirulina platensis extract, the scutellaria alpina flower / leaf / stem extract and the alteromonas fermentation product extract are combined and compounded, so that the achieved effect is obviously better than that of single or simple combination, and the effects of enhancing skin resistance, maintaining skin health and stability and relieving skin discomfort are realized.

The invention provides a pathogenic bacterium of kelp albinism, which is Pseudoalteromonas X-8 strain (Pesudoalteromonas X-8), which is preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee, with a preservation number of CGMCC20099 and a preservation date of June 17, 2020; Preservation address: No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing. The seawater Pseudoalteromonas X-8 strain provided by the present invention can be used to screen albinism-resistant kelp strains. The Pseudoalteromonas X-8 strain obtained by screening of the present invention is confirmed by restaining healthy kelp seedlings, which can cause healthy kelp to produce albinism, and is a pathogenic bacterium of albinism in kelp seedling stage; use this bacterial strain to be used for screening. Albino kelp strains.

The invention discloses a drinking water heavy metal efficient adsorbent. The adsorbent contains exopolysaccharides which is generated by synergistic fermentation of pseudoalteromonas GHS18 with the preservation number being CGMCC No.12913 and pseudoalteromonas JP with the preservation number being CGMCC No.12914. The drinking water heavy metal efficient adsorbent has the following beneficial effects: growth and propagation between the pseudoalteromonas sp. GHS18 and the pseudoalteromonas sp. JP have remarkable synergistic effect, the adsorption effect of the adsorbent prepared from the obtained exopolysaccharides on the heavy metal in water is better than that of the adsorbent prepared from the exopolysaccharides obtained through fermentation of single marine bacteria, and remarkable progress is achieved. The prepared adsorbent can adsorb various kinds of heavy metal such as cadmium, lead and copper in the drinking water, has high adsorption efficiency and stable performance, is green and safe, and has high economic value.

The invention relates to a pseudomonas alternata (highly active gellan gum oligosaccharide-producing bacteria) and its application. Specifically, the present invention provides a Pseudomonas alteromonas PE2: Pseudoalteromonas sp. and its preservation number is: CGMCC NO: 16439. The present invention also simultaneously provides the application of the above-mentioned Pseudomonas alternata PE2: producing gellan gum lyase; producing gellan gum oligosaccharides.

Provided are a stabilized, skin-whitening and antioxidative cosmetic composition including resveratrol as a main component and either a primary stabilizer selected from cyclodextrin, polyethyleneglycol, and a mixture thereof, or a combination of the primary stabilizer and a secondary stabilizer selected from an alpha-lipoic acid, a water-soluble whitening composition, a phellodendron extract, an alteromonas ferment extract, and a mixture thereof, and a method for preparing the same. The cosmetic composition provides excellent skin whitening and antioxidative effects for a long-term even when used in a small quantity. Furthermore, solubility of the resveratrol and the alpha-lipoic acid in polyol or ethanol is enhanced, thereby improving low use satisfaction and skin irritation that may be caused due to excess use of an organic solvent. In addition, problems such as crystal precipitation at low temperature, off-flavor and discoloration upon exposure to sun light can be solved.

The invention provides a strain of pseudoalteromonas with algae-dissolving ability and its application in controlling the red tide of Karenia militaris, belonging to the field of microbiology of harmful red tide treatment. The alginolytic bacteria named Pseudoalteromonas ( Pseudoalteromonas flavipulchra ) FDHY‑MQ5, was deposited in China Center for Type Culture Collection on May 20, 2019, deposit number: CCTCC NO: M 2019371. The fermentation liquid of this strain is added to the exponential growth phase of Karenia militaris at a volume ratio of 1%, and the 24-hour algicidal rate is 94.3-98.2%. After optimization of the fermentation conditions, bacteria powder can be produced per liter of bacterial liquid It is 18-20g, and the mass fraction of bacteria powder is 0.04%, and the algalysis rate of Karenia militaris is 99.67-100% under the condition of 24 hours of treatment.

The invention provides a method for preventing and treating kelp albinism, which uses blue light or white light to inhibit the pathogenic bacteria of kelp albinism; the light intensity of the white light is less than 40 μmol·m ‑2 ·s ‑1 or greater than 160μmol·m ‑2 ·s ‑1 ; As for the blue light, its light intensity is not lower than 40 μmol·m ‑2 ·s ‑1 . The kelp albinism pathogenic bacteria is Pseudoalteromonas X-8 strain (Pesudoalteromonas X-8), and the preservation number is CGMCC20099. The method of the invention can provide a theoretical basis for kelp seedling raising enterprises to formulate correct and appropriate light intensity management, and provide light intensity parameters for screening albino-resistant kelp strains.

The present invention relates to a strain of Altomonas HT1 and its cultivation method and application. Altomonas sp. HT1 in the present invention is preserved in the China Center for Type Culture Collection on March 9, 2021, and the preservation address is: Luojia Mountain, Bayi Road, Wuchang District, Wuhan City, Hubei Province, and the preservation number is CCTCC NO. M2021217. Alteromonas sp. HT1 can grow in the medium with Prolifera as the sole carbon source. in the form of sugar. The strain and the prolifera polysaccharide lyase secreted by the strain can be applied to the degradation of marine green algae and the preparation of functional oligo-oligosaccharides, and have good application potential in medicine, cosmetics and food industries.

The invention provides a preparation method for improving phycoerythrin yield, which comprises the following steps: step 1, mixing acrochaetiaceae, fermentation bacteria liquid containing pseudoalteromonas wandering and seawater to obtain a acrochaetiaceae bacteria liquid mixture; and step 2, fermenting the acrochaetiaceae bacterial liquid mixture under a time condition, a temperature condition and a rotating speed condition, so that the acrochaetiaceae is crushed to release phycoerythrin. The invention further provides an application of the bacteria for breaking the acrochaetiaceae.