13results about How to "Reduce browning" patented technology

The application provides a method for inducing poly-podophylli rhizoma by using clump buds, comprising the following steps: S1, cutting stem segments from a podophylli rhizoma mother plant, soaking and cleaning to obtain explants; S2, disinfecting and cleaning the explants, inoculating into a clump bud induction medium to obtain podophylli rhizoma clump buds; S3, inoculating the clump buds into doubling liquid I, washing with a liquid clump bud induction medium after culture, and then transferring into doubling liquid II; S4, taking out the clump buds, cleaning, inoculating into a clump bud induction medium, and then inoculating into a bud proliferation medium; S5, waiting until 1-2 cm, screening out potential mutant strains through phenotypes, inoculating into the bud proliferation medium for subculture, and obtaining mutant plants; and S6, rooting culture of the mutant plants, and after root systems grow, planting and raising seedlings, and then poly-podophylli rhizoma plants are obtained. In the research, suitable concentration of colchicine is used for induction treatment twice, and through stage concentration switching and intermittent recovery strategies, the poly-ploid induction efficiency and explant survival are effectively considered.

The present application relates to a kind of passion fruit explant brown prevention tissue culture medium and its tissue culture method, it is related to passion fruit tissue culture technical field.The present application provides a kind of passion fruit explant brown prevention tissue culture medium, the tissue culture medium includes the following components:MS culture medium, passion fruit juice, 6-BA, IBA, sucrose, agar.The present application is improved by culture medium, explant low-temperature treatment and explant secondary disinfection, and the pollution rate of explant, browning rate is reduced, improves the survival rate of passion fruit explant in the process of tissue culture, overcomes the shortcoming that browning mortality is high in the process of passion fruit tissue culture, improves the tissue culture efficiency of passion fruit.

The present application relates to the processing technology field of Rhizoma Polygonati, in particular to a low-temperature tumbling system and process for directional softening and browning inhibition of Rhizoma Polygonati fibers; the system comprises a tumbling barrel, a collection box, a cooling circulation module and an ultraviolet-ultrasonic synergistic treatment unit. The tumbling barrel breaks Rhizoma Polygonati cells and releases juice during rotation, the juice is filtered by the collection box, cooled to 0-10 DEG C by a cooling device, and then recycled and sprayed onto the surface of Rhizoma Polygonati to realize dynamic temperature control; the ultraviolet lamp inhibits the reproduction of microorganisms, the ultrasonic wave destroys the activity of polyphenol oxidase, and the low-temperature environment blocks the browning reaction; the process realizes directional softening of Rhizoma Polygonati fibers under low-temperature conditions by alternating tumbling and standing, synergistically controls the softening rate of fibers and the inhibition efficiency of enzyme activity, and significantly reduces the browning risk. The system takes into account the quality and processing efficiency of Rhizoma Polygonati, is suitable for the industrialized processing of different varieties such as Rhizoma Polygonati and Rhizoma Polygonati, and can be widely applied to the processing technology field of Rhizoma Polygonati.

The invention discloses a tea polyphenol blend as well as a preparation method and application thereof, and the tea polyphenol blend comprises the following components in parts by weight: 0.2-3 parts of tea polyphenol, 0.5-5 parts of protein-silk fibroin peptide powder and 0.2-5 parts of pullulan. The problems that in the prior art, tea polyphenols are prone to oxidative polymerization to cause color change and active ingredients are degraded can be solved, the problems that the addition content of the tea polyphenols in cosmetics is extremely low and is always in a trace addition range and the tea polyphenols cannot be widely applied to the cosmetics are solved, and the application performance of the tea polyphenols is improved.

This invention relates to the field of plant tissue culture technology, specifically to a culture medium and method for inducing and regenerating tiger nut callus. This invention creatively combines growth regulators (2,4-D, 6-BA, NAA, and ZT) in the culture medium for three different stages of tiger nut callus induction, regeneration, and differentiation, and optimizes the selection of the best explants. This allows each component to fully synergistically enhance its effect at each stage, resulting in high callus induction rate, good growth status, low browning degree, good proliferation effect, and high differentiation rate and differentiation coefficient. Furthermore, no growth regulators are required during rooting induction, resulting in lower costs. This invention lays the foundation for tiger nut gene function research, variety genetic improvement, and germplasm resource optimization.

The invention discloses an optimized dried ballonflower drying method based on a hot air condition, and belongs to the technical field of food processing. The method comprises the following steps: cleaning freshly-harvested dried ballonflower, carrying out water control pretreatment, and then drying by adopting three-stage temperature gradient hot air. The drying process is carried out within the temperature range of 40-60 DEG C at the air speed of 1.5-3.0 m / s, the initial-stage temperature is 40-55 DEG C, the middle-stage temperature is 50-60 DEG C, the tail-stage temperature is 40-50 DEG C, and finally the moisture content of the dried ballonflower is 8-12%. Optionally, the pretreatment may include blanching or treatment with a specific color protection solution. According to the method, through cooperative control of temperature, wind speed and time, the rehydration property of the dried ivy mosses can be effectively improved, the texture, color and flavor quality of the dried ivy mosses can be optimized, the method is suitable for industrial standardized production, and the problems that in the prior art, the product quality is unstable, and the texture and flavor are difficult to consider are solved.

The present application relates to a kind of monocotyledon green wisteria rapid propagation method, using the characteristics of green wisteria specific tissue cell totipotency, under open condition, using liquid medium to induce green wisteria specific site of in vitro leaf split differentiation, produce regenerative root and regenerative bud, finally form plant.The present application aims at the rapid propagation method of green wisteria leaf, without sterile environment, convenient to take material, easy to operate, low in cost, short in period, high in survival rate, with the advantages of high efficiency, economy, easy to scale, factory, etc., in green wisteria rapid seedling, specific material preservation and propagation has greater application value.

The application discloses a kind of processing devices of litchi deep, including separation tank, the separation tank one side is fixedly installed with feed tank, the separation tank and feed tank inner cavity are communicated;It further includes impurity removal mechanism, for cleaning the impurities mixed in cooling water;The impurity removal mechanism includes separation plate, the separation plate sliding installation is in the separation tank inner cavity, the separation tank bottom is equipped with a plurality of air inlet holes, the separation tank bottom is fixedly installed with two gas collectors, a plurality of air inlet holes are communicated with the inner cavity of two gas collectors respectively, two gas collectors are fixedly connected with air inlet pipe, the separation tank one side is fixedly connected with first filter tank;Through first filter tank, the cold water in the separation tank inner cavity is extracted, residue will enter first filter tank along with water flow, residue remains in the first filter tank inner cavity, cold water is introduced into the inner cavity of feed tank through water pipe, and the residue is gathered in the first filter tank inner cavity, so that the residue is collected and treated again by staff, so as to realize the reduction of loss.

This invention belongs to the field of tissue culture technology and provides a method for rapid propagation of Tibetan Saussurea involucrata via tissue culture, comprising the following steps: From May to July, Tibetan Saussurea involucrata explants are subjected to stepwise sterilization to obtain sterile explants; these explants are inoculated into a starter culture medium for seed germination to obtain callus tissue; the callus tissue is transferred to MS proliferation medium containing 2.0-3.0 mg / L 6-BA + 0.05-0.1 mg / L IAA, and cultured for 21-25 days. TDZ is then added to promote shoot differentiation, while simultaneously reducing IAA to 0.01-0.02 mg / L, and cultured for another 21-25 days to obtain rootless seedlings; these seedlings are then transferred to rooting medium and cultured for 21-25 days to obtain tissue culture seedlings; after hardening off the seedlings for 2-4 days, they are transplanted into a sterile substrate. This method significantly improves the propagation stability and seedling quality of Tibetan Saussurea involucrata via tissue culture by quantifying key process parameters and establishing a multi-dimensional evaluation system.

The application belongs to the technical field of food preservation, and specifically discloses a kind of postharvest high-voltage alternating electric field and low-temperature synergistic storage preservation method of fresh lotus seeds, comprising the following steps: S1, fresh lotus seed pretreatment, get shelled fresh lotus seed;S2, the shelled fresh lotus seed obtained in S1 is placed in a constant low-temperature incubator with high-voltage alternating electric field for storage preservation.The application adopts the above-mentioned postharvest high-voltage alternating electric field and low-temperature synergistic storage preservation method of fresh lotus seeds, for the first time, high-voltage alternating electric field is applied to the storage preservation of fresh lotus seeds, effectively slows down the metabolism and aging process of lotus, also can reduce the loss of nutrients, the preservation effect is good, and the safety is high, no residue, small harm.This method is simple to implement, cost-effective, and friendly to the environment, has a wide application prospect and market potential.

This invention belongs to the field of traditional Chinese medicine processing technology. It addresses the issues of heat uniformity during the drying process and the loss of components and quality stability caused by differences in different medicinal materials. The invention discloses a process for slicing kudzu root while it is still fresh, comprising the following steps: slicing the kudzu root; adding treated porous ceramic after slicing; mixing evenly; drying; and finally sieving out the porous ceramic after drying. This invention introduces treated porous ceramic into the drying process of kudzu root, which promotes heat uniformity and improves drying efficiency. It also allows the antioxidant effect of guaiac gum to be utilized, and the porous ceramic treated with guaiac gum is easier to separate from the kudzu root. Furthermore, this invention develops a reasonable fresh-cutting process tailored to the differences in different medicinal materials, reducing the loss of active ingredients and changes in appearance while ensuring the quality stability of the processed slices.

This application relates to a modified chitosan coating for enhancing adhesion to fruit surfaces and resisting fungal spores, and a method for preparing the same. The modified chitosan coating comprises a chitosan-tannic acid-stearic acid copolymer, a plasticizer, and water. The copolymer is modified by grafting tannic acid and stearic acid onto a chitosan backbone. The modified chitosan coating exhibits enhanced adhesion and hydrophobicity to hydrophobic fruit surfaces, improves wettability, reduces swelling under high humidity, enhances gas barrier properties, displays significant antioxidant activity, reduces enzymatic browning and scavenges free radicals, exhibits anti-adhesion against fungi and bacteria, and possesses excellent biocompatibility. It provides a promising, safe, and sustainable solution for extending the shelf life and quality of fresh agricultural products.