309 results about "Subspecies" patented technology

The invention provides an intestinal tract micro-ecological preparation and its preparing process, wherein each 100g of the product contains bifidobacteria 1.0-20.0g, Lactobacillus acidophilus 1.0-25.0g, Streptococcus thermophilus 1.0-25.0g, Bulgarian subspecies of Lactobacillus fermentum 1.0-25.0g, saccharomycete 1.0-35.0g, and right amount of isomaltose hypgather, fructooligosaccharide, and many kinds of vitamins.

The invention belongs to the pesticide field and particularly relates to a synergic pesticidal composition with active ingredients to be the combinations of fipronil and a series of subspecies of Bacillus thuringiensis (Bt for short), wherein the Bacillus thuringiensis subspecies include six subspecies: Bacillus thuringiensis var.kurstaki, Bacillus thuringiensis var.aizawa, Bacillus thuringiensis var.tianmensis, B.thuringiensis var.israelensis, Bacillus thuringiensis subsp.aizawai and Bacillus thuringiensis subsp. kenyae. The main agent thereof includes the following active ingredients by the weight percentages as follows: fipronil 0.1%-80%, Bacillus thuringiensis 100-100000 IU (international unit) / mg, or 10-1000 billion spore / g, or 0.01-20% toxin protein, and the rest is an accessory ingredient. The pesticidal composition can be efficiently used for controlling agricultural pests such as rice leaf rollers, chilo suppressalis walkers, diamondback moths, prodenia lituras, corn borers, and so on, and has particular characteristics of high efficacy, long lasting period and safe usage, so that the pesticidal composition belongs to environment-friendly pesticides and can prolong the generation of resistance, reduce production cost and increase economic benefit.

The invention discloses a Bacillus amyloliquefaciens subsp. plantarum ZFH-3 and application thereof. The classification designation of the strain is Bacillus amyloliquefaciens subsp. plantarum, and the collection number is CGMCC No.9884. The strain has obvious inhibiting actions on multiple crop pathogens, especially can effectively control postharvest diseases of fruits, is well used for biological control of contact mold of citrus fruit, olive green mould of ditrus fruit, citrus phomopsis stem end rot, sour rot of citrus, anthracnose of citrus, anthracnose of banana, spike rot of banana, gray mold of strawberry, soft rot of strawberry and other pathogen fungi, obviously lowers the possibility of postharvest diseases of fruits, prolongs the storage life and shelf life, and reduces the consumption of chemical reagents. The strain has the advantages of simple culture conditions and high reproduction speed, can easily implement industrial production, popularization and application, and has favorable development and application prospects.

The invention relates to a preparation method of a bacteriocin-producing Lactobacillus plantarum subsp. Plantarum Zhang-LL active bacterial preparation, and belongs to the field of microbe application. In the preparation method, by using a bacteriocin-producing Lactobacillus plantarum subsp. Plantarum Zhang-LL CGMCC No. 6936 bacterial strain, the active bacterial preparation is prepared through activation, expanding culture, high-density fermentation, centrifugation, freeze-drying protective agent addition, a prefreezing process, a freeze-drying process and other processes. The preparation method comprises the following steps: firstly, rapeseed peptone is selected as a substituting nitrogen source, so that the culture condition of the lactobacillus plantarum is optimized while the cost of a culture medium is reduced; a 5L of full-automatic fermentation tank is used for performing the high-density fermentation, and under the optimized low-cost culture medium and the optimized culture condition, the viable count of fermented liquid can reach above 1010CFU / mL. In the preparation method, potato pulp is used as a matrix of a freeze-drying protective agent, and an optimal combined formula of the freeze-drying protective agent is determined, so that the survival rate of the Lactobacillus plantarum subsp. Plantarum Zhang-LL reaches above 60% and the viable content can reach above 1011CFU / g. The prepared active bacterial preparation is low in raw material price and relatively high in viable content, can provide a good foundation for developing a novel feed additive for poultry, and can provide a significant economic value.

The invention discloses lactobacillus rhamnosus derived from human breast milk and application of the lactobacillus rhamnosus. The lactobacillus rhamnosus Z5 disclosed by the invention is initially derived from the human breast milk and belongs a new subspecies of the lactobacillus rhamnosus. An experiment proves that the strain has the properties of acid resistance, bile salt resistance, and resistance on a simulated animal gastrointestinal tract environment, capability of inhibiting growth harmful bacteria including escherichia coli and salmonella in intestines and capability of being stuck on epithelial cells of human and animal intestines very well. The lactobacillus rhamnosus can be used for preparing health-care foods, fermented foods, vaccine adjuvants and animal feed so that the balance of intestinal flora of human and animals is easy to adjust and the health of the intestines of the human and animals is increased.