4 results about "Nutritional excess" patented technology

The utility model discloses a fermentation feed supplement system for fusidic acid production, which relates to the technical field of fermentation feed supplement and comprises a feed supplement tank, a fermentation tank and a feed supplement cup, the feed supplement tank is connected with the feed supplement cup, the feed supplement cup is connected with the fermentation tank, and a peristaltic pump is arranged on a connecting pipeline of the feed supplement cup and the fermentation tank. Through cooperative operation of the material supplementing tank, the material supplementing cup, the flow sensor, the peristaltic pump and the like, accurate material supplementing can be realized according to dynamic requirements of microorganisms for nutrition in different fermentation stages of fusidic acid. The problem of overnutrition or insufficiency in a traditional material supplementing mode is effectively avoided, generation of by-products is reduced, microorganisms can obtain appropriate nutrients in all growth stages, a stable material basis is provided for efficient synthesis of fusidic acid, and then the yield and quality of products are improved.

The invention relates to the field of fermentation equipment, in particular to an automatic fermentation liquor supplementing device for glutathione production, which comprises: a reaction tank, the top of the reaction tank is provided with an air inlet, the top surface of the reaction tank is fixedly provided with a main air bellow and an auxiliary air bellow, and the main air bellow is correspondingly arranged right above the air inlet and is communicated with the inside of the reaction tank; and a sealing plate. According to the invention, the main air bellow directly senses the volume and pressure change of the purified gas caused by microbial metabolism in the gas phase space at the top of the fermentation tank, and the change is converted into the opening and closing action of the material supplementing valve through the lever mechanism. The feeding process is directly linked with the actual metabolic activity of microorganisms in real time, 'on-demand feeding 'is achieved, and hysteresis and blindness existing in traditional timed and quantitative feeding or program-controlled feeding are effectively avoided. Therefore, nutrition supply can be ensured to be always dynamically matched with microbial requirements, and overnutrition or insufficient nutrition is prevented, so that the yield of glutathione and the stability of the fermentation process are remarkably improved.

The invention provides an urban vegetable garden growth period nutrition dynamic monitoring and precise regulation and control system and method based on spectral analysis and machine learning, and relates to the technical field of crop nutrition diagnosis. A spectrum-nutrient content mapping relation is established, and the crop nutrient state is dynamically monitored. A nutrition diagnosis model based on transfer learning dynamically adjusts diagnosis thresholds in different growth stages through a weight adaptive updating mechanism, and the accuracy and adaptability of diagnosis are remarkably improved. Meanwhile, the optimal fertilization proportion is calculated by adopting a fuzzy control algorithm, accurate nutrition supply is realized through the intelligent fertilization system, the problem of overnutrition or insufficient nutrition is effectively avoided, the fertilization efficiency is improved, and resource waste and environmental pollution are reduced. According to the invention, the growth quality and yield of urban vegetable garden crops are significantly improved, and the intelligent and precise development of urban agriculture is promoted.

The utility model belongs to feed mixing device technical field, concretely is a kind of feed mixing device for sheep breeding, including mixing box, second rotating shaft is rotatably installed in the mixing box by bearing, the surface of second rotating shaft is fixedly installed with multiple fixed discs, the surface of multiple fixed discs is fixedly installed with blade for being used to the comminution of feed, one end of second rotating shaft is sleeved with second sleeve, and second sleeve is penetrated through the lateral wall of mixing box by bearing, comminution and stirring plate stirring are synchronously carried out by blade, blade first breaks up large particle raw material, increases material contact area, and stirring plate is stirred from different directions to feed again, realizes comminution and mixing, effectively avoids the problem of uneven mixing caused by the size difference of raw material particles, and the uniformly mixed feed enables sheep to intake balanced nutrient components when feeding, to avoid the situation of excessive nutrition or malnutrition.