8results about How to "Maintain sensory quality" patented technology

The invention discloses a method for producing colored low-digestion extruded recombinant rice by forming a starch-polyphenol complex through a one-step method, and relates to the technical field of food processing, and the method comprises the following steps: preparing a natural eutectic solvent; colored polyphenol is added, crystalline polyphenol is dissociated by adjusting a natural eutectic solvent-polyphenol interaction mode, and free polyphenol is formed; the method comprises the following steps: taking crushed by-product broken rice as a main base material, mixing the main base material with a natural eutectic solvent-free polyphenol solution, and enabling free polyphenol to enter a spiral inner cavity of starch through self-assembly driving to form a starch-polyphenol complex; tempering, extruding, forming and granulating; and cooling, crystallizing and drying to obtain the product. The preparation method has the beneficial effects that crystalline polyphenol is dissociated through dipole-dipole interaction and hydrogen bond interaction of a natural eutectic solvent, so that free polyphenol directionally enters a spiral cavity of an amylose molecule to be complexed and then is self-assembled to form a starch-polyphenol complex, the solubility, uniformity and stability of colored polyphenol can be effectively improved, and the preparation method is suitable for industrial production. The degradation in the processing and digestion processes is avoided.

The invention discloses an anti-aging corn powder with high carotenoid retention rate and a preparation method thereof, the preparation method comprising cleaning, threshing, blanching, beating, obtaining corn powder; gelatinization, obtaining corn paste material; adding enzyme for enzymolysis, enzyme inactivation, obtaining corn enzymolysis powder; preparing pectin-chitosan composite electrolyte gel; then mixing corn enzymolysis powder, pectin-chitosan composite electrolyte gel and sodium caseinate, after grinding, dispersion and emulsification, spray drying, and obtaining a finished product. The above-mentioned preparation method combines the spray drying microencapsulation of electrolyte gel and the spiral composite technology of straight-chain starch molecular fragments and emulsifiers to achieve the anti-aging goal of corn powder; through the spray drying process, pectin-chitosan composite electrolyte gel microencapsulation, to achieve the microencapsulation of corn carotenoids. The obtained corn powder has the advantages of high carotene retention rate, high gelatinization degree and good anti-aging effect.

This invention provides a nutritional composition rich in A2-β-casein that promotes calcium absorption, belonging to the field of functional foods. The invention obtains A2-β-casein through genotyping and purification, and then combines it with colostrum basic protein and a small amount of milk-derived calcium to form compositions with different ratios. This invention utilizes a Caco-2 cell model to study the fluorescence imaging of calcium ion influx into Caco-2 cells, the calcium absorption-promoting activity, and the absorption pathway, thereby comprehensively evaluating the calcium absorption characteristics of this composition and obtaining a nutritional composition rich in A2-β-casein that promotes calcium absorption.

The present invention discloses a refrigerator using an enhanced high-voltage electrostatic field, comprising a refrigerator body, a refrigeration module, a storage module, a high-voltage direct current power module and an enhanced high-voltage electrostatic field module, wherein the high-voltage direct current power module comprises an electrode plate, the refrigeration module is mounted on the upper part of the refrigerator body, the high-voltage direct current power module is mounted on the lower part of the refrigerator body, the storage module is mounted on the refrigeration module, the electrode plates are mounted on the top and bottom of the storage module respectively, and two electrode plates are connected to the positive terminal and the negative terminal of the high-voltage direct current power module respectively. The present invention can enhance the internal field strength of the material in the electric field by 10-20 times, and realizes the function of obtaining a larger electric field strength by using a smaller voltage. The invention can improve the freezing efficiency of the refrigerator, reduce the ice crystal size of the frozen items, and improve the freezing quality of the frozen food; it can also improve the refrigeration efficiency and fresh-keeping effect of refrigerated food, and extend the shelf life of refrigerated food.

The application belongs to the technical field of food processing, and particularly relates to a composite additive for improving the storage stability of special medical purpose formula powder and application thereof, which is composed of lecithin, cysteine, ascorbic acid and ascorbyl palmitate. Through the synergistic effect of the four components, the composite additive can significantly improve multiple stability indexes of the special medical purpose formula powder in the storage process: improve the solubility, inhibit the Maillard reaction to reduce the generation of 5-hydroxymethyl furfural, inhibit lipid oxidation to reduce the generation of malondialdehyde and peroxide value, and especially overcome the pro-oxidation defect of ascorbic acid at high temperature. The four-component system of the application constructs a water-oil-interface multidimensional protection network, and provides an effective composite additive scheme for preparing the special medical purpose formula powder with high stability, and has a wide industrial application prospect.

The invention relates to the technical field of yellow rice wine, in particular to coix seed red yeast rice yellow rice wine with high antioxidant activity as well as a preparation method and application thereof. The monascus ruber (3.15746) is used for carrying out microbial fermentation conversion on the coix seeds, and the coix seed and monascus ruber yellow rice wine is short in production period, excellent in sensory quality, rich in lovastatin and high in antioxidant activity. The monascus yellow wine strain is enriched, the content of active ingredients and the health-care effect of the monascus yellow wine are improved, and a feasible scheme and technical parameters can be provided for industrial development.

The invention discloses a soybean protein isolate / gelatin packaging film containing eucalyptus leaf essential oil nanoemulsion. The method comprises the following steps: firstly, embedding eucalyptus leaf essential oil by using a low-temperature ultrahigh-pressure continuous flow cell crusher to prepare eucalyptus leaf essential oil nanoemulsion, adding the eucalyptus leaf essential oil nanoemulsion into a soybean protein isolate / gelatin / glycerol mixed solution, magnetically stirring, and drying in a constant-temperature and constant-humidity box to obtain the eucalyptus leaf essential oil nanoemulsion / soybean protein isolate / gelatin packaging film. The eucalyptus leaf essential oil nanoemulsion is applied to the soybean protein isolate / gelatin composite membrane, the antibacterial and antioxidant effects of the eucalyptus leaf essential oil nanoemulsion are exerted, the eucalyptus leaf essential oil serves as a cross-linking agent, the internal structure of the membrane is more compact, the tensile strength and the elongation at break of the composite membrane are improved, the water vapor permeability and the oxygen permeability are reduced, and the service life of the membrane is prolonged. The synergistic advantage of the eucalyptus leaf essential oil is exerted, and the components have good compatibility, so that the membrane has better thermal stability. Cherry fresh-keeping experiments prove that the composite film has an obvious fresh-keeping effect on cherries.

The invention belongs to the technical field of storage and fresh keeping of fruits and vegetables, and particularly relates to a curcumin fresh-keeping emulsion as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing and stirring sodium carboxymethyl cellulose, a curing agent, a plasticizer and a curcumin-peony seed oil mixed solution, homogenizing, carrying out ultrasonic treatment to obtain a curcumin fresh-keeping emulsion, uniformly coating a degradable fresh-keeping bag with the curcumin fresh-keeping emulsion, and drying to obtain the degradable curcumin fresh-keeping bag. The fruit preservative can effectively delay reduction of indexes such as weight loss, hardness and soluble solids of fruits, inhibit increase of rotting rate, maintain sensory quality and nutritional value to the greatest extent and prolong the fresh-keeping period of the fruits and vegetables, and is high in safety, non-toxic, harmless and environment-friendly; the operation is simple, the preparation time is short, the production cost is greatly reduced, and large-scale marketization application is favorably realized.