Low-temperature plasma-intensive pulse light sterilization reactor for NFC fruit and vegetable juice

Abstract

The invention provides a low-temperature plasma-intensive pulse light sterilization reactor for NFC fruit and vegetable juice. The low-temperature plasma-intensive pulse light sterilization reactor comprises a low-temperature plasma reactor component, an intensive pulse light reactor component and a material conveying pipeline component, wherein a plurality of emission electrodes are uniformly arrayed on the anode plate of the plasma reactor component, a plurality of small holes are uniformly distributed on the anode plate and a cathode plate, so that the phenomena of turbulent flow, channeling, wall flow, laminar flow and the like of freshly squeezed fruit and vegetable juice in a low-temperature plasma generator are avoided, and the freshly squeezed fruit and vegetable juice is ensured to uniformly receive the action of low-temperature plasma; the intensive pulse light reactor is an inclined plate type intensive pulse light reactor, multiple layers of NFC fruit and vegetable juice flat plates are arranged in the intensive pulse light reactor, and a plurality of intensive pulse light lamps are arrayed on the upper parts of the flat plates; the material conveying pipeline component comprises a material inlet / outlet and a valve thereof, a gas inlet / outlet and a valve thereof, and a duckbilled film distributor; and the material conveying pipeline is provided with the duckbilled film distributor at an inlet end in the intensive pulse light reactor, so that NFC fruit and vegetable juice forms a liquid thin film on the flat plates, uniformly passes through an intensive pulse light cavity to receive the action of the intensive pulse light, the sterilization efficiency of the intensive pulse light lamps is improved, meanwhile, gas mixed with liquid materials is completely released, and gas-liquid separation is realized. According to the low-temperature plasma-intensive pulse light sterilization reactor, rapid and continuous sterilization of the NFC fruit and vegetable juice is realized at a normal temperature and normal pressure, the whole process is green, pollution-free, energy-saving and environment-friendly, and the low-temperature plasma-intensive pulse light sterilization reactor has a good economic benefit and popularization value.

Description

technical field [0001] The invention belongs to the field of non-thermal sterilization of food, and in particular relates to a low-temperature plasma-pulse strong light sterilization reactor for non-concentrated (Not-from-concentrate, NFC) fruit and vegetable juices. Background technique [0002] NFC fruit and vegetable juice has the advantages of good quality and high added value, and is an important direction for the development of the fruit and vegetable intensive processing industry. However, NFC fruit and vegetable juice is a heat-sensitive product, and the use of thermal processing technology will lead to changes in its color, flavor, and nutrients, affecting product quality. ; The use of non-thermal processing technology can solve the negative problems in the thermal processing process and meet the needs of NFC fruit and vegetable juice processing and production. [0003] According to literature search, non-thermal sterilization technologies for fruit and vegetable ju...

AI Technical Summary

Problems solved by technology

Most of these sterilization technologies are intermittent and single-mode sterilization. It is difficult to inactivate the vigorous bacterial spores and enzymes, and there is a safety risk of incomplete sterilization.

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