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69 results about "Apple pectin" patented technology

Preparation method for hydrocolloid dressing for promoting wound repairing

The invention discloses a preparation method for hydrocolloid dressing for promoting wound repairing, belonging to the technical field of medical dressing preparation. The method comprises the following steps: adding AFGF freeze-dried powder into a mixed solution of gelatin and carboxymethyl chitosan, thereby acquiring an AFGF-loaded transparent fluid; mixing with dissolving fluid of the matters including sodium carboxymethylcellulose, apple pectin, and the like; ultrasonically oscillating and then adding a cross-linking agent; performing cross-linking reaction under a certain temperature, acquiring reaction fluid and then mixing with resin viscous fluid, thereby acquiring a spinning solution; spinning by adopting a wet method, thereby acquiring an AFGF-loaded fiber; mixing with a pure cotton fiber and spinning to form cloth. According to the preparation method, the apple pectin is added, so that the water absorption lasting time of the dressing is increased and the gelling is quickened; styrene-isoprene segmented copolymer is added, so that the dressing viscidity and the peeling strength are effectively improved; hydrocolloid is prepared into weaved cloth and no film substrate is required, so that the problem of weak binding force between hydrocolloid and polymer film is solved and the wound repairing can be effectively promoted; the preparation method has wide application prospect.
Owner:青岛华元精细生物制品有限公司

Modified apple pectin with excellent colon fermentation property and preparation method thereof

ActiveCN110801028AFast colonic fermentationSimple structureFood ingredient functionsBiotechnologyAmylase
The invention discloses a modified apple pectin which has a purity of higher than 90%, a methyl esterification degree of lower than 6%, an acetylation degree of less than 2%, a molecular linearity ofgreater than 12, and an average molecular weight of 8.0-15 kDa, and a degradation rate of higher than 90% after 12 h in the intestinal tract. The invention further discloses a preparation method of the pectin, which comprises the following steps: uniformly mixing water and apple powder; sequentially carrying out enzymolysis by using alpha-amylase and the like to obtain an apple powder enzymatic hydrolysate, carrying out concentration and suction filtration, and performing hot leaching on the filter residue with acid water to obtain a crude pectin extract; firstly adding pectin methylesterase and pectin acetylesterase to the crude pectin extract for enzymolysis, and then adding rhamnogalacturonase and the like thereto for enzymolysis to obtain a pectinase enzymatic hydrolysate; subjecting the pectinase enzymatic hydrolysate to high-pressure dynamic micro-jet treatment before concentration, adding ethanol to precipitate, re-dissolving the precipitate for ultrafiltration and dialyzing, and carrying out concentration and drying to obtain the modified apple pectin. According to the invention, the modified apple pectin has an increased intestinal fermentation speed and a higher degradation rate than commodity apple pectin.
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI

Preparation method of low-sugar strawberry jam

The invention discloses a preparation method of low-sugar strawberry jam. The preparation method comprises the following steps: firstly, removing carpopodium and pedicel of strawberries and cleaning;protecting color and then crushing; blending the crushed strawberries with white granulated sugar, citric acid, apple pectin, vitamin C and lactein and homogenizing; decocting the homogenized strawberries at constant temperature for a certain time, and degassing to obtain raw materials of the strawberry jam for preparing the low-sugar strawberry jam. According to the preparation method of the low-sugar strawberry jam, provided by the invention, the apple pectin is added in the process of blending the strawberry jam, so that the stability of anthocyanin in the strawberry jam in the decoction and sterilization process can be improved; the citric acid is used for adjusting a pH value of strawberry juice; and the lactein is added for improving the super-high-pressure sterilization efficiency.The strawberry jam prepared by the method and a formula, disclosed by the invention, has the advantages of less loss of nutrients, outstanding strawberry fruit flavor, bright red color, mellow mouth feel, appropriate sourness and sweetness, no addition of preservatives and long storage time.
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI

Apple pectin heteropolysaccharide for improving diversity of intestinal florae and preparation method of apple pectin heteropolysaccharide

The invention discloses a preparation method of an apple pectin heteropolysaccharide for improving diversity of intestinal florae. The preparation method comprises the following steps: I, dissolving apple powder into water, performing enzymolysis, performing vacuum concentration, and performing purification so as to obtain a pectin extract; II, adding pectin methylesterase and pectin acetylase into the pectin extract, performing primary oriented digestion, adding polygalacturonase and pectate lyase, performing secondary oriented digestion, further adding polyrhamnogalacturonases, xylogalact uronase, galactan esterases and arabanase, and performing third oriented digestion so as to obtain a modified pectin extract; and III, performing purification treatment on the modified pectin extract, so as to obtain the apple pectin heteropolysaccharide. Through three times of oriented digestion, the apple pectin heteropolysaccharide which is high in neutral polysaccharide ratio, low in methyl esterification degree and low in acetylation degree can be obtained, the apple pectin heteropolysaccharide is capable effectively improving diversity of intestinal florae, and the microorganism fermentation degradation rate in intestines within 24 hours is greater than 80%.
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI

Modified apple pectin with excellent colonic fermentation properties and preparation method thereof

The invention discloses a modified apple pectin, wherein the pectin has a purity higher than 90%, a degree of methylation lower than 6%, a degree of acetylation lower than 2%, a molecular linearity greater than 12, and an average molecular weight of 8.0 ‑15kDa, the degradation rate is higher than 90% after 12h in the intestinal tract. The invention discloses a preparation method of the above-mentioned pectin, which comprises: adding water to apple powder and mixing it evenly, first enzymatically hydrolyzing apple powder with α-amylase and the like to obtain apple powder enzymatic hydrolysis solution, then concentrating and suction filtering, and passing the filter residue through hot acid water The pectin crude extract is obtained by leaching; the pectin methylesterase and pectin acetylesterase are added to the pectin crude extract for enzymatic hydrolysis, and then rhamnogalacturonidase and other enzymatic hydrolysis are added to obtain the pectin enzymatic hydrolysis solution Concentrate the pectin enzymatic hydrolysis solution through high-pressure dynamic micro-jet treatment, add ethanol for precipitation, redissolve the precipitate, carry out ultrafiltration, dialysis, and obtain modified apple pectin after concentration and drying. The invention improves the intestinal fermentation speed of the modified apple pectin, and the degradation rate is higher than that of commercial apple pectin.
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI

Feed composition capable of improving survival rate of special wild boars

The invention discloses a feed composition capable of improving the survival rate of special wild boars and belongs to the technical field of feed. The feed composition is prepared from the followingraw materials: oligoisomaltose, apple pectin oligosaccharide, a ginkgo leaf extracting solution, corn straw, rape straw, mulberry pomace, sugar beet pulp, dephenolized cottonseed protein, fructus phyllanthi, germinated rice, folium et cacumen murrayae, tuckahoe, medicated leaven, bamboo shavings and licorice root. According to the feed composition capable of improving the survival rate of the special wild boars, briquetting, conditioning and aging, spraying and fermentation are combined for treatment, the conversion rate of the feed can be effectively improved, the palatability of the feed isincrease and the feed composition has certain prevention and treatment effects on certain diseases in wild boars. The feed disclosed by the invention has the beneficial effects: the daily gain of thewild boars is 559-610g / pig, the daily feed consumption is 1.25-1.28kg / pig, the lean meat percentage reaches 79%-87%, the immunity is enhanced, the feed / weight gain is reduced by 8.0%-17.7% compared tothat of the control group and the economic benefit is obvious.
Owner:QINGYANG DUNBO TECH DEV CO LTD
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