58 results about "Pectic acid" patented technology

The present invention relates to percarboxylated polysaccharide selected from the group consisting of gellan, carboxymethylcellulose, pectic acid, pectin and hyaluronic acid derivatives; the process for their preparation and their use in the pharmaceutical, biomedical, surgical and healthcare fields.

The present invention relates to percarboxylated polysaccharide selected from the group consisting of gellan, carboxymethylcellulose, pectic acid, pectin and hyaluronic acid derivatives; the process for their preparation and their use in the pharmaceutical, biomedical, surgical and healthcare fields.

A mixed beverage is prepared from wine, fruit juice, sugar, pectic acid and purified water through proportionally mixing and aerating CO2. Its advantages are low content of alcohol, and good enjoyment as drink fruit juice.

The invention discloses an environment-friendly composite hydrate inhibitor and a preparation method thereof. The environment-friendly composite hydrate inhibitor consists of methyl esterified pectic acid and amino acid, wherein the mass ratio of methyl esterified pectic acid to amino acid is (1:2)-(1:20); the methyl esterification degree of pectic acid is 8-70%; the content of galactopyranose aldehyde acid is larger than 65 wt%. The methyl esterified pectic acid can effectively delay hydrate nucleation, reduce the hydrate formation rate and prevent hydrate accumulation, and the amino acid substance can remarkably reduce the hydration temperature or improve the hydration pressure through the thermodynamic action. The composite hydrate inhibitor not only overcomes the shortcomings that a single hydrate inhibitor is low in efficiency and poor in university, but also has the characteristics of favorable biodegradability, economical efficiency and environmental protection performance, and can meet the demands on chemicals from offshore and onshore oil and gas fields and pipeline additives, thereby being very wide in application range.

The invention discloses a preparation method of preserved passion fruits added with passion fruit juice. The preparation method comprises the following steps: selecting materials, separating pulp andpeels, deactivating the peels, carrying out peel anti-oxidization, anti-browning and fresh-keeping treatment, adding the passion fruit juice to prepare sugar liquid, and performing impregnating and drying, and sterilizing and packaging. The peels are boiled so that deactivation and primary browning prevention can be realized and the mouthfeel of the preserved fruits is increased; citric acid is added to resist oxidization and phytic acid is used for protecting vitamin C to prevent nutrient loss; calcium chloride can react with pectic acid on cell walls to form calcium pectate, so that the tissue rigidity is increased, the mouthfeel is improved and the browning degree is reduced, and chitosan is used for carrying out freshness preservation; the passion fruit juice is added into raw materials for preparing the sugar liquid to prepare the sugar liquid and then impregnation is carried out, so that rich nutrient substances in the passion fruit juice are preserved in the preserved fruits andthe nutrient value of the preserved fruits is increased; a whole production process contains no harmful substance adding process or harmful substance treatment process, so that the prepared preservedfruits are safer and more healthy and are nutritional.

The invention discloses a gene sequence of lygus lucidum polygalacturonase (PG) and a method for preparing the PG. According to the method, firstly, the total RNA (ribose nucleic acid) of lygus lucidum is extracted, a primer is designed according to the enzyme conserved sequence, an RT-PCR (reverse transcription-polymerase chain reaction) method is utilized for amplification to obtain three PG homologous gene sequences, then, a RACE (rapid-amplification of cDNA ends) method is utilized for obtaining 5' and 3' unknown sequences; and finally, the PG1 is used as the representative, a pichia pastoris expression system is used for carrying out the recombination expression, separation and purification and enzyme activity analysis of the enzyme. Firstly, the gene sequence obtaining problem of the lygus lucidum PG is solved, and the recombination expression problem of the PG of the inspect source is also solved for the first time. The obtained lygus lucidum PG has Pectin decomposition activity. The enzyme has application prospects in the application of the plant pectin aspect in the aspects including food (juice) squeezing, oil material extraction, traditional Chinese medicine treatment, papermaking industry, oligomerization pectin health-care products and the like.

The invention discloses a compound enzyme preparation for promoting fiber modification through pulping novel household paper and a preparation method and application thereof. The compound enzyme preparation comprises, by mass, 70% of an alkaline pectic acid disintegrating compound enzyme, 2% of alkaline cellulase, 18% of alkaline xylanase and 10% of laccase. By adopting the technical scheme, in the process of degumming, consumption of bleaching liquid in the process of bleaching flax fibers is reduced by higher than 20%, consumption of caustic soda in the process of bleaching the flax fibers is reduced by higher than 40%, breaking strength of the flax fibers is increased by higher than 5%, fineness is increased by higher than 20%, elongation at break is increased by higher than 30%, the fibers are uniform in strength, and spinnability of the fibers is improved remarkably, so that economic benefit is increased, production cost is lowered, and COD is lowered by higher than 30%.

The present invention provides methods for inducing, maintaining and expanding CTL (cytotoxic T cell) having an antigen-specific cytotoxic activity at a high level, which is useful in the adoptive immunotherapy, by using as an effective ingredient at least one compound selected from the group consisting of acidic polysaccharides, acidic oligosaccharides, acidic monosaccharides, and salts thereof. The above-mentioned compounds include fucoidans, heparins, alginic acid, chondroitin sulfate A, chondroitin sulfate B, pectic acid, hyaluronic acid, degradation products of fucoidans, sulfated glucose, sulfated fucose and salts thereof.

The invention relates to a marine life composition for promoting discharge of heavy metals in vivo. The marine life composition comprises the following raw material components in parts by weight: 4 parts to 15.6 parts of seaweed extracts, 0.005 part to 0.2 part of squid ink extract, 0.9 part to 4.9 parts of pectic acid or pectic acid derivatives, 0.4 part to 6.1 parts of xylo-oligosaccharides, and0.09 part to 0.2 part of zinc salt. The marine life composition for promoting the discharge of the heavy metals in vivo disclosed by the invention can widely adsorb all heavy metal ions and promote the discharge of the all heavy metal ions, so that heavy metals accumulated in bones, blood and internal organs can be obviously reduced. Compared with an existing chelating agent medicine, the marinelife composition disclosed by the invention has no toxic and side effects; and moreover, balance of minerals in vivo cannot be affected, and the marine life composition can be securely used for preventing and treating chronic poisoning of the heavy metals for a long time.

The invention provides a brewing method of a nutritional and healthy blueberry wine with a short brewage time, belonging to a field of wine brewage. The method comprises selecting fresh and high-quality blueberry, washing, air drying, putting into a crusher to crush into blueberry slurry, adding 15-45 ml / 480 kg of pectin methyl esters hydrolase and pectic acid enzyme into the blueberry slurry for biological enzymatic hydrolysis, with an enzymatic hydrolysis temperature being controlled between 50-60 DEG C and an enzymatic hydrolysis time being controlled between 30-90 DEG C, using an ultrahigh pressure enzyme inactivation method to inactive the enzyme under 100 Mpa, cooling the blueberry slurry to a normal temperature after the enzyme inactivation, putting in a cool and dry place for 8-20 days to form an immersing liquid with a alcohol volume content of 10-11 %, adding 3-5 % of jujube, 2-3 % of matrimony vine, 4-6 % of longan and 1-4 % of honey into the immersing liquid by weight ratio, immersing for 100-140 days to obtain a new wine, adding 0.15-0.25 % by weight ratio of a clarificant to clarify and filter the new wine, blending the new wine with a rice wine so that an alcohol concentration reaches 10-11 DEG, and then filtering to obtain the finish product. The method has advantages of short brewage time, high clarification degree and high nutrition value.

A cell culture article is provided. The cell culture substrate includes a polygalacturonic acid compound selected from at least one of: pectic acid or salts thereof, and partially esterified pectic acid having a degree of esterification from 1 to 40 mol% or salts thereof. The polygalacturonic acid compound is crosslinked with a divalent cation and the divalent cation concentration ranges from 0.5to 2 g / l of the substrate.

The invention relates to the technical field of biological medicines, in particular to glycyrrhiza inflate bat oligosaccharide and a preparation method thereof. The preparation method includes the steps: first, preparing pectic acid, dissolving an appropriate amount of glycyrrhiza inflate bat polysaccharide in 1.0mol / L NaOH absolute ethyl alcohol solution with the volume accounting for 25-50 times that of the glycyrrhiza inflate bat polysaccharide, performing reaction in an ice bath for 4.5-5 hours, standing overnight at the temperature of 4 DEG C after reaction, and then performing filtration under reduced pressure. The GiP (glycyrrhiza inflate bat polysaccharide) is de-esterified to obtain the pectic acid, and enzymolysis is performed after taking the pectic acid as a substrate to obtain the glycyrrhiza inflate bat oligosaccharide. The glycyrrhiza inflate bat oligosaccharide comprises polygalactose aldehyde acid oligosaccharide with the polymerization degree of 1-5, has stronger mice spleen lymphocytes proliferation promoting functions as compared with original GiP, displays good immunological enhancement activity and has a potential application prospect in the field of food and medicines.