38results about How to "Efficient antibacterial effect" patented technology

The invention relates to a fresh-keeping agent for traditional non-fermented bean products. The fresh-keeping agent comprises a fresh-keeping agent A and a fresh-keeping agent B, wherein the fresh-keeping agent A comprises the following raw materials in percentage by weight: 0.05-0.1 percent of nisin, 0.05-0.1 percent of potassium sorbate, 0.01-0.05 percent of vitamin C and 99.75-99.89 percent of water; the fresh-keeping agent B is a 1 percent lactic acid or citric acid or a acetic acid aqueous solution which respectively contains 0.8-1.5 weight percent of chitosan; and the fresh-keeping agent A and the fresh-keeping agent B are respectively boiled for 1-3 minutes, cooled and then stored at 0-4 DEG C for later use. A fresh-keeping method comprises the following steps of: soaking a traditional non-fermented bean product in the fresh-keeping agent A for 5-10 minutes or spraying the fresh-keeping agent A on the surface of the bean product and draining for 0.5-1 minute; and soaking the bean product in the fresh-keeping agent B for 3-5 minutes or spraying the fresh-keeping agent B on the surface of the bean product and draining for 3-5 minutes. The invention can ensure that the traditional non-fermented bean product i.e. palletizing bean curds keep fresh for 8 days and guarantee the quality for about 10 days and has longer fresh-keeping time and no toxic and side effects. The fresh-keeping method matched with the fresh-keeping agent has simple operation, low cost and wide application.

The invention discloses an antibacterial natural latex product based on a quaternary ammonium salt antibacterial agent and a preparation technology of the antibacterial natural latex product, and belongs to the technical field of latex materials. The antibacterial natural latex product is prepared from the following components by weight: 90 to 100 parts of natural latex, 1 to 9 parts of sulfur, 1 to 5 parts of a vulcanization accelerator, 1.5 to 2 parts of an anti-aging agent, 1 to 6 parts of zinc oxide, 0.5 to 2 parts of sodium fluosilicate, 1 to 3 parts of potassium castorate, 0.1 to 2 parts of potassium oleate, 0.5 to 1 part of potassium permanganate and 0.1 to 3 parts of the quaternary ammonium salt antibacterial agent. The antibacterial natural latex product is based on the antibacterial characteristic of a low-concentration quaternary ammonium salt compound. The adopted quaternary ammonium salt compound has the advantage of stable performance, and the compound is tightly combined with latex polymer molecules and cannot permeate the skin of people or an animal by changing the physicochemical property of material surface. The latex product prepared in the invention has the advantages of high antibacterial property, hygiene, high practicability and the like, and has a broad market prospect.

The invention relates to an alkaline electrolyzed water synergist and a preparation method and application thereof. The alkaline electrolyzed water synergistic solution includes alkaline electrolyzed water and synergists, and the synergists include chitosan and / or chitosan derivatives. The preparation method of the alkaline electrolyzed water synergistic solution comprises: mixing alkaline electrolyzed water and synergist in proportion, and performing cooling treatment to obtain the alkaline electrolyzed water synergistic solution. In the alkaline electrolyzed water synergist, the alkaline electrolyzed water and synergists cooperate with each other, so that the alkaline electrolyzed water synergist has an efficient and long-lasting antibacterial effect.

The invention discloses Streptomyces thioluteus, the preservation number is GDMCC NO: 61327, and the classification name is Streptomycesthioluteus GXMD-hs-43. The strain is simple to screen and easy to cultivate, and the inventor has also established a corresponding cultivation method. Studies have shown that the fermentation broth of GXMD‑hs‑43 strain has a good control effect on citrus green mold, and its inhibitory effect on Penicillium digitorum is as high as 94.81%. In addition, the toxicological experiments of the GXMD‑hs‑43 strain showed that it is a non-toxic microorganism, so it also has the characteristics of good ecological safety, and will not cause secondary pollution during use. The discovery of this strain has enriched the available microbial resources in my country, and its bacteriostatic effect is stable, efficient and environmentally friendly, and it has a good application prospect in the prevention and treatment of citrus green mildew.

The invention discloses two strains of functional microorganisms, Bacillus pierreae, respectively, the preservation numbers are GDMCC NO: 61542, GDMCC NO: 61541, and the names are Paenibacillus peoriae GXMD-hs-28 or Paenibacillus peoriae GXMD-hs-35. The strain is simple to screen and easy to cultivate, and the inventor has also established a corresponding cultivation method. Studies have shown that the fermentation broth of GXMD‑hs‑28 or GXMD‑hs‑35 has a good control effect on citrus canker. The effect is comparable. The discovery of this strain enriches the available microbial resources in my country, and has the advantages of stable bacteriostatic effect, high efficiency and environmental friendliness, and has a good application prospect in the prevention and treatment of citrus canker.

The invention discloses an antibacterial printing paste composition, a method for preparing glazed tiles using the same, and glazed tiles. A kind of bacteriostatic printing paste composition, comprises bacteriostatic agent, also comprises bacteriostatic material bonding dispersant and bacteriostatic material protective agent; Calculated by weight percentage, the raw material component of described bacteriostatic material bonding dispersing agent comprises 5 ~20% carbo resin, 5~15% saponite soil, 20~55% silicon boron frit powder, 15~30% alumina and 5~15% opal; calculated according to weight percentage, the antibacterial material protective agent The raw material components include 20-30% zirconia, 10-20% tin oxide, 3-10% yttrium oxide, 5-15% opal, 10-25% lithium carbonate and 5-15% rutile. The prepared glazed tile has good antibacterial performance, good antibacterial durability and long antibacterial time, which solves the problem of poor antibacterial effect and durability when the traditional antibacterial agent is directly mixed into raw glaze.

Derivative polypeptide derived from a grass carp interferon and an application of the derivative polypeptide. An amino acid sequence of the derivative polypeptide is as shown in SEQ ID NO:1; the interferon-derived polypeptide has a high-efficiency antibacterial effect and can take effect against drug-resistant Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus agalactiae, Vibrio fluvialis or Aeromonas hydrophila. The interferon-derived polypeptide is less toxic to eukaryotes and can effectively reduce the mortality of mice in a mouse disease model caused by pathological bacteria. The interferon-derived polypeptide which is small in molecular weight is easily synthesized and has a good application value.