5 results about "Gracilaria conferta" patented technology

The invention discloses a gracilaria variegata low-molecular-weight polysaccharide GBP-1a, the monosaccharide is composed of 82.8% of galactose and 17.2% of glucose through structural analysis, the molecular weight of the uniform polysaccharide is 2887Da, and the polysaccharide has no toxicity to THP-1 mononuclear cells and THP-1 macrophages within a set concentration range through activity detection; and after the polysaccharide is subjected to immune training on THP-1 mononuclear cells and THP-1 macrophages, the immune response of the polysaccharide is obviously higher than that of cells which are not subjected to polysaccharide immune training, so that the training of the polysaccharide is preliminarily deduced to possibly enable the cells to generate acquired immunity similar to vaccines.

The invention discloses a method for improving the gel strength of gracilaria powder. The method comprises the following steps: carrying out enzymolysis treatment on gracilaria; carrying out yeast fermentation treatment on the gracilaria after enzymolysis; and filtering the fermented bacterial liquid, washing and cleaning the fermented gracilaria, drying to constant weight, carrying out superfine grinding until the particle size is less than 10 microns, and carrying out screw extrusion, crushing and sieving to obtain the gracilaria powder. In this way, the gracilaria powder is modified, the modified gracilaria powder can form strong gel after being heated and cooled at the temperature of 50 DEG C, the gel strength of the gracilaria powder can be greatly improved, meanwhile, the temperature needed by gelling of the gracilaria powder is reduced, more possibilities are provided for application of the gelling property of the gracilaria powder, and meanwhile the economic cost of the gracilaria powder is reduced.

The invention discloses gracilaria powder with high water-retaining property and low heavy metal content and a preparation method thereof, and the preparation method comprises the following steps: washing gracilaria, adding saccharomycetes liquid, and carrying out sealed fermentation at 20-30 DEG C to obtain a gracilaria fermentation product; filtering the gracilaria fermentation product to remove the yeast liquid, washing the gracilaria fermentation product with 30-50 times of water for 1-4 times, adding a 0.9% sodium chloride solution, adding medium-temperature alpha-amylase and saccharifying enzyme, and carrying out enzymolysis at 45-60 DEG C to obtain a gracilaria enzymolysis product; and filtering out enzymatic hydrolysate from the gracilaria enzymolysis product, adding food-grade citric acid for acid hydrolysis, filtering out reaction liquid, drying, crushing and sieving to obtain the gracilaria powder. According to the method, the gracilaria is subjected to specific pretreatment and synergistic processing of fermentation, enzymolysis and acid treatment, so that the water retention capacity of the gracilaria powder is remarkably improved, and meanwhile, the heavy metal content is remarkably reduced.

The invention presents an environmentally friendly method for producing silver nanopartic1es (AgNP) using sulfated polysaccharides from G. tenuistipitata. This green synthesis approach eliminates the need for harmful chemicals, making it suitable for a wide range of industrial, biomedical, and environmental uses. The resulting AgNPs are stable, uniform in size, and show significant bioactivity. Advanced characterization techniques, such as UV-Vis spectroscopy, FT-IR, FE-SEM, EDX, and XRD, confirm the nanopartic1es' high stability and bioactivity, highlighting their potential for various applications without relying on hazardous substances.

To provide a production method of an intraoral duplicate cast capable of improving duplication accuracy of the cast and flask for producing an inverted intraoral cast.SOLUTION: A production method of an inverted intraoral cast, for producing the inverted intraoral cast, the inverted cast of an intraoral cast 10 imitating the inside of an oral cavity by impression, includes: a material arrangement step of arranging the intraoral cast 10, a liquid impression material ML, and a solid intermediate material MS, respectively in a flask, serving as a container for producing the inverted intraoral cast; and a solidification step of solidifying the impression material in the flask to mold the inverted intraoral cast. The impression material is comprised of an aqueous solution of Gracilaria vermiculophylla. The intermediate material is comprised of agar of Gracilaria vermiculophylla. The flask includes a base body 101, a main body, and a lid body 120.SELECTED DRAWING: Figure 6