14 results about "Climacteric" patented technology

The invention belongs to the technical field of food packaging and fresh-keeping materials, and discloses an ethylene adsorption and pH / pectinase double-response intelligent antibacterial composite film as well as a preparation method and application thereof. The composite film comprises a base film and a functional carrier distributed in the base film, the functional carrier is a material ZIF-8-cinnamyl aldehyde-pectin capable of adsorbing ethylene and responding to pH and pectin, and the base film comprises a film-forming polymer and a natural antibacterial agent. According to the composite film, efficient adsorption of ethylene released in the storage period of fruits and vegetables is achieved through a porous structure of ZIF-8, meanwhile, a synergistic effect is formed by an acid environment naturally generated in the fruit and vegetable ripening and rotting process and pectinase, and intelligent slow release of cinnamyl aldehyde loaded on ZIF-8 is accurately triggered; cinnamyl aldehyde can form a double-channel intelligent antibacterial system with the natural antibacterial property of chitosan in a film base material and the metal ion antibacterial property of ZIF-8, maturation and aging of typical respiratory climacteric fruits and vegetables can be remarkably delayed, and the antibacterial film has extremely high industrial application potential.

The invention discloses application of theanine in a preservative and a method for relieving cold injury of respiratory climacteric fruits, and belongs to the technical field of cold injury resistance. Firstly, the invention provides an application of theanine, and the theanine is used for preparing the preservative for relieving the cold injury of the respiratory climacteric fruits. Meanwhile, the theanine aqueous solution is used for preparing the fresh-keeping liquid for relieving the cold injury of the respiratory climacteric fruits. Based on the fresh-keeping liquid, the specific use method comprises the following steps: respectively placing the respiratory climacteric fruits in the theanine solution with the concentration of 5-20 mmol / L, soaking for 5-30 minutes, and drying after soaking is finished. Finally, the invention provides the theanine cold damage resistant preservative film which is prepared from the konjac glucomannan, the chitosan and the theanine, the final concentration of the konjac glucomannan is 0.2-0.8 g / L, the final concentration of the chitosan is 0.2-0.8 g / L, and the final concentration of the theanine is 5-20 mmol L <-1 >. The method is good in cold damage resistance effect and wide in application prospect.

The invention belongs to the field of traditional Chinese medicines, and provides application of a valerian extract in preparation of a medicine for preventing and treating climacteric syndrome. Pharmacological experiments show that the valerian extract has a regulation effect on a hypothalamic-pituitary-neuroendocrine system, and has important significance in regulating postmenopausal endocrine conditions of middle-aged and old women and improving anxiety, insomnia, dysphoria and other climacteric symptoms related to FSH (follicle stimulating hormone) and LH (luteinizing hormone). In addition, the valerian extract has a good regulation effect on secretion of related sex hormones and hypothalamus neurotransmitters of climacteric rats, and has a certain correction effect on the central monoamine neurotransmitter disorder state of the climacteric rats. The traditional Chinese medicine composition can improve clinical symptoms of climacteric syndrome.

The invention belongs to the technical field of postharvest fruit and vegetable preservation and food activity delivery materials, and discloses a salicylic acid nanoemulsion delivery system based on protein-polysaccharide interface self-assembly and a preparation method and application thereof. The system comprises an oil phase, a water phase and a protein-polysaccharide composite layer formed on an oil-water interface, the composite layer is formed by self-assembling zein (Zein) and chitosan (CS) through electrostatic interaction and hydrogen-bond interaction, and salicylic acid (SA) is embedded in the oil phase core. According to the invention, a stable core-shell framework is constructed by utilizing a self-assembly strategy driven by interface engineering, so that the encapsulation efficiency and chemical stability of salicylic acid are remarkably improved, and photo-thermal degradation of salicylic acid is effectively inhibited. The nano-emulsion system has a typical shear thinning rheological property, is suitable for spraying and film forming on the surfaces of fruits and vegetables, can obviously delay ethylene release and maturation and aging of respiratory climacteric fruits and vegetables through a physical barrier and physiological regulation synergistic mechanism, and has a wide application prospect in the field of green preservation.

The application relates to the field of postharvest preservation of fruits and vegetables, and particularly discloses a polypeptide and a derivative thereof with fruit and vegetable preservation functions and applications. The polypeptide comprises the following two kinds: DP1, the amino acid sequence of which is VTLLDLIKDVEM; and DP2, the amino acid sequence of which is SRKNVTAYGSLG. Research shows that the polypeptide can interact with a key receptor protein in a plant ethylene signal pathway, thereby inhibiting ethylene signal transmission and delaying the fruit and vegetable ripening and aging process. The polypeptide or the derivative thereof is applied to the surface of fruits and vegetables in a spraying or soaking mode, and can significantly reduce the fruit peel browning and rotting rate and prolong the shelf life of the fruits and vegetables under normal temperature or cold chain storage conditions. The polypeptide has the advantages of small molecular weight, good stability, high safety, convenient use and the like, and is suitable for postharvest preservation of various fruits and vegetables such as tomatoes, mangoes and the like.

Disclosed in the present invention is a protein-based edible fruit preservative liquid. The preservative liquid is a mixed solution of a protein compounded with a polysaccharide compound and a bio-based nanoparticle, and a film-forming agent. The preservative liquid can be modified on fruits by means of dipping or spraying to form a preservative coating. The protein-based edible fruit preservative liquid has a simple preparation method, can form a film on any fruit, and has good antibacterial properties and preservative effects. Moreover, the raw materials of the preservative liquid have the advantages of a low cost, good dispersion, complete non-toxicity, etc. The preservative liquid of the present invention has good preservative effects on both respiratory climacteric and non-respiratory climacteric fruits, can prolong the shelf life, and also has excellent preservative and antioxidant effects on fresh-cut fruits.

This invention discloses a pectin-nanolignin-citrus essential oil composite coating liquid, its preparation method, and its application. The preparation method includes the following steps: first, a nanolignin suspension is prepared; then, citrus essential oil is added and homogenized to obtain a nanolignin Pickering emulsion; finally, a pectin solution is added and homogenized again to obtain the pectin-nanolignin-citrus essential oil composite coating liquid. When used for food preservation, the pectin-nanolignin-citrus essential oil composite coating liquid of this invention forms a composite coating with excellent broad-spectrum antibacterial, antioxidant, UV-resistant, and long-term essential oil release properties. It also enhances physical properties such as mechanical properties, water vapor / oxygen barrier properties, and hydrophobicity, significantly extending the shelf life of climacteric fruits (kiwifruit) and non-climacteric fruits (strawberries), demonstrating great application potential in the field of fruit preservation.

The invention discloses a composition of plant extracts capable of taking effect quickly and probiotics capable of taking effect for a long time and application of the composition of the plant extracts capable of taking effect quickly and the probiotics capable of taking effect for a long time. The composition comprises a first composition which takes effect quickly, further comprises a plant extract and a second composition which takes effect for a long time, and further comprises one or more of probiotics, prebiotics and metabiotics. The first composition and the second composition are used for improving digestive system functions, enhancing intestinal barriers, enhancing immunity, improving mood, relieving pressure and anxiety, improving female health, relieving climacteric symptoms, improving uncomfortable symptoms in the menstrual period, controlling and managing body weight and improving oral health through a synergistic effect.

The invention discloses a method for physically ripening fruits based on magnetic field treatment and capable of regulating and controlling the ripening process and application. According to the method, different fruit ripening acceleration effects are achieved by adjusting the magnetic induction intensity, the magnetic field treatment period and the intensity of the atmosphere cold plasma coupled with the magnetic field. The conditions are as follows: the magnetic induction intensity is 10-120 Gs, the treatment mode is magnetic field short-time intermittent treatment, magnetic field continuous treatment or magnetic field coupling atmosphere cold plasma treatment, and the treatment period is 30 minutes to 24 hours per day; the magnetic field coupling atmosphere cold plasma concentration is 0-450 ppm (based on the ozone concentration); the maturity of the respiration climacteric fruit is a green ripe stage; the temperature of the ripening chamber is 15-35 DEG C, and the relative humidity is 70-95%. And the fruits can reach a commercial mature state 2-12 days in advance. The technology provided by the invention can accurately regulate and control the after-ripening process of fruits, and has the advantages of greenness and no pollution.

The application discloses a kind of bio-based nanofiber membrane and its preparation method and application in ethylene adsorption and fruit preservation;The application is by dispersing oxidized starch and pullulan in water, and is configured into the mixed solution of oxidized starch / pullulan with solute mass fraction of 15~30%, and starch-polyose compound paste solution is obtained by gelatinization;Add water-soluble protein, heat and stir to obtain electrospinning liquid;The electrospinning liquid is electrospun to obtain bio-based nanofiber membrane.The bio-based nanofiber membrane prepared by the application can adsorb ethylene gas in the environment under normal temperature and pressure as a green material, and has low cost, simple process and can be reused.The nanofiber membrane system prepared by selecting oxidized starch-pullulan-water-soluble protein can adsorb 3.19-15.40cm 3 / g ethylene gas under normal temperature and pressure, prolongs the shelf life of food, and comprehensively realizes the preservation of banana and other respiratory-peak fruits.

The invention provides an essential oil composition for female climacteric conditioning and a preparation process thereof, and belongs to the technical field of essential oil for conditioning climacteric. The preparation method comprises the following steps: preparing the black cimicifugae foetidae extract nano-composite; preparing a compound essential oil microcapsule; and preparing the essential oil composition. The whey protein isolate and the sodium carboxymethyl starch are respectively dissolved and then are heated, stirred and mixed, so that the whey protein isolate and the sodium carboxymethyl starch are preliminarily combined through electrostatic attraction, then the compound essential oil is added, and the composite emulsion is prepared through homogenization and ultrasonic treatment, so that the specific surface area of the microcapsule can be remarkably increased, more adsorption sites are provided, and the adsorption efficiency is improved. The preparation method comprises the following steps: preparing whey protein isolate from whey protein isolate, then catalyzing a cross-linking reaction of glutamine and lysine among whey protein isolate molecules through transglutaminase to form a three-dimensional network skeleton, and meanwhile, combining carboxyl of sodium carboxymethyl starch with amino of the whey protein isolate through ionic bonds to fill network gaps, so that the embedding rate of the compound essential oil can be effectively improved.

The invention discloses a traditional Chinese medicine composition, liver-nourishing and heat-clearing paste and application of the liver-nourishing and heat-clearing paste in preparation of a medicine for treating climacteric syndrome, and relates to the technical field of traditional Chinese medicines. The traditional Chinese medicine composition is prepared from a preparation A, a preparation B, bamboo juice, donkey-hide gelatin and deer-horn glue, wherein the preparation A is prepared from wild chrysanthemum flowers, fructus lycii, raw fructus gardeniae, radix curcumae, radix scutellariae, cortex phellodendri, radix ophiopogonis, radix adenophorae, fructus toosendan, rhizoma anemarrhenae, radix angelicae sinensis, prepared rhizoma cyperi, fructus cannabis, bunge cherry seeds, fried fructus aurantii and pericarpium citri reticulatae; the preparation B comprises poria cocos, salted rhizoma alismatis, semen plantaginis, paris polyphylla, liquorice, ginger bamboo shavings, radix bupleuri, radix paeoniae alba and radix hedysari; the liver-nourishing and heat-clearing paste comprises the traditional Chinese medicine composition, and the invention further provides application of the traditional Chinese medicine composition or the liver-nourishing and heat-clearing paste in preparation of medicines for treating climacteric syndromes. The invention provides a quick-acting and radical treatment integrated solution for climacteric patients according to the mechanism of clearing liver fire, nourishing kidney and replenishing essence, and regulating the central nervous system.

The invention relates to the technical field of postharvest preservation of fruits and vegetables, and particularly discloses a polypeptide with a fruit and vegetable preservation function and a derivative and application thereof. The polypeptide comprises the following two kinds of polypeptides: DP1, the amino acid sequence of which is VTLLDLIKDVEM; and the amino acid sequence of the DP2 is SRKNVTAYGSLG. Research shows that the polypeptide can interact with key receptor protein in a plant ethylene signal channel, so that ethylene signal transduction is inhibited, and fruit and vegetable ripening and aging processes are delayed. The polypeptide or the derivative thereof is applied to the surfaces of fruits and vegetables in a spraying or soaking mode, the occurrence rate of browning and rotting of fruit peels can be remarkably reduced under the normal-temperature or cold-chain storage condition, and the shelf life of the fruits and vegetables is prolonged. The polypeptide has the advantages of being small in molecular weight, good in stability, high in safety, convenient to use and the like, and is suitable for postharvest preservation of various breathing jump fruits and vegetables such as tomatoes and mangoes.

The invention discloses a royal jelly composition for improving memory and a preparation method of freeze-dried powder, and the royal jelly composition for improving memory comprises the following components: 60%-90% of royal jelly, 3%-10% of longan aril, 2%-8% of American ginseng, 2%-8% of tribulus terrestris, 2%-8% of fructus alpiniae oxyphyllae and 2%-6% of collagen peptide. The royal jelly is used as a main raw material and is matched with longan aril, American ginseng, tribulus terrestris and fructus alpiniae oxyphyllae, so that the comprehensive effects of regulating hormone, tonifying qi and blood, soothing liver-qi stagnation, tonifying kidney and promoting intelligence are achieved, and the effects of well improving memory and improving climacteric syndromes are further achieved. In addition, the filtered royal jelly, longan pulp, American ginseng powder, fried tribulus terrestris powder and fried fructus alpiniae oxyphyllae powder are respectively mixed according to a certain proportion and then are freeze-dried, so that the moisture consistency of each component is ensured, the uniformity and hardness of subsequent pressed tablets are ensured, and the quality of the final product is ensured.