7 results about "Chilling injury" patented technology

This invention belongs to the field of post-harvest quality testing technology for agricultural products, specifically relating to a method for predicting the degree of chilling injury in bitter gourd. The method uses *Bitter Gourd 'Du Ruan'* as the research object, employing segmented pre-cooling treatment to measure indicators such as chilling injury index, respiration rate, weight loss rate, firmness, chlorophyll content, malondialdehyde content, and antioxidant enzyme activity during storage. This determines suitable pre-cooling conditions, explores the impact of different pre-cooling settings on its physiological quality and chilling injury development during storage, and constructs a bitter gourd chilling injury prediction model based on key indicators. The method for predicting the degree of chilling injury in bitter gourd provided by this invention offers a theoretical basis and technical support for optimizing post-harvest cold chain processes for bitter gourd, mitigating low-temperature damage, and extending shelf life.

The invention discloses a fresh-keeping system applied to fresh Chinese prickly ash, and belongs to the technical field of agricultural product postharvest fresh-keeping. Aiming at the technical problems that an existing preservation method is difficult to consider precooling safety, precise control and dynamic maintenance of a gas environment, cold damage and gas damage are easily caused and the preservation effect is unstable, the method is characterized in that physiological stress signals are monitored through a gradient precooling unit, and fresh peppers are safely cooled to a target storage temperature; a low-oxygen and high-carbon-dioxide initial fresh-keeping gas environment is replaced and established in the unlocked intelligent fresh-keeping container through a gas environment initialization module, and locking of the intelligent fresh-keeping container is completed in the atmosphere; and through a fresh-keeping state dynamic maintaining module, according to the real-time change of oxygen and carbon dioxide concentration in the container and the breathing intensity trend, a two-way fine adjustment air valve on the box cover is intelligently controlled to carry out air exchange adjustment. The system is mainly used for post-harvest storage and logistics links of respiration climacteric agricultural products such as fresh peppers and the like, and aims to prolong the fresh-keeping period and maintain the excellent quality of the fresh peppers and the like.

The application discloses application of molybdenum disulfide nanomaterial in crop cold damage regulation and belongs to the technical field of cold resistance agents. The molybdenum disulfide nanomaterial is dispersed in water to obtain a suspension; and then the suspension is sprayed on corn and soybean leaves, and the cold resistance of the corn and the soybean is regulated through the leaf surface spraying mode, so that the biomass of the cold-damaged corn and the cold-damaged soybean is increased, and the application prospect is excellent.

This invention relates to the application of iron dihydroporphyrin in low-temperature resistance of oilseed and vegetable crops, and methods for achieving low-temperature resistance. The low-temperature protection agent for oilseed and vegetable crops includes iron dihydroporphyrin; the method for low-temperature resistance of oilseed and vegetable crops includes treating them with iron dihydroporphyrin. Its advantages lie in the fact that the iron dihydroporphyrin-containing plant low-temperature resistance regulator of this invention has a certain stress resistance effect on oilseed and vegetable crops, can reduce the chilling injury index of oilseed and vegetable crops, and provides a new approach and reference for improving the low-temperature resistance of oilseed and vegetable crops.

This invention relates to the field of fresh food preservation control technology, and discloses a fresh food preservation control system based on osmotic pressure synergistic low-temperature barrier, comprising: a category parameter locking module for acquiring and fixing the category parameters of the current batch of fresh food; a first-test conversion and evaluation module for collecting ambient temperature and humidity, calculating ambient water activity and effective osmotic pressure difference; a priority path determination module for determining the priority control path based on the inhibition degree gap sign and the upper limit of the chilling injury temperature window; a main variable correction module for adjusting temperature and humidity according to the priority path and verifying inhibition degree and osmotic pressure difference; a secondary variable fine-tuning module for fine-tuning secondary variables according to category parameters and verifying inhibition degree and osmotic pressure difference; a patrol limit module for verifying osmotic pressure difference and adjusting temperature and humidity; and a disturbance switching verification module for returning to the first-test conversion and evaluation module during disturbances and performing batch parameter verification. This invention achieves precise preservation control of fresh food during low-temperature storage, extending shelf life and maintaining stable quality.

This invention proposes a magnetic field-coupled low-temperature pre-storage preservation method for mitigating chilling injury during peach storage. During the low-temperature pre-storage process, a static magnetic field is coupled, which can be achieved using an external magnetic field on existing refrigeration equipment. This eliminates the need for significant modifications to existing refrigeration equipment, saving on equipment and time costs. The magnetic field-coupled low-temperature treatment method does not involve the use of chemical preservatives, thus avoiding food safety issues. It is a chemical-free, simple, efficient, green, and safe method for controlling chilling injury during peach storage. It does not require highly skilled operators, facilitating the widespread application of this invention.

The application discloses a receptor-like kinase MaHPCA1 and application thereof in relieving banana chilling injury, and relates to the field of plant genetic engineering. Two homologous genes MaHPCA1-1 and MaHPCA1-3 in a leucine-rich repeat receptor-like kinase gene family are found from banana, and overexpression of MaHPCA1-1 and MaHPCA1-3 in banana peel can inhibit the generation of hydrogen peroxide, superoxide anion and malondialdehyde, and further relieve banana fruit chilling injury symptoms, improve the cold resistance of banana fruit under postharvest low-temperature storage conditions, and prolong the storage period of banana fruit.