A device for parallel production of sugarcane concentrated juice and sugarcane drinking water with multi-stage membranes

Abstract

The invention provides a multistage-membrane apparatus for parallel production of concentrated sugarcane juice and sugarcane drinking water. A juice inlet of a first ceramic ultrafiltration membrane assembly of the apparatus is connected with a coarse filtration sugarcane juice vat, and a clear liquid outlet of the first ceramic ultrafiltration membrane assembly is connected with a clarified sugarcane juice vat; a juice inlet of an organic nanofiltration membrane assembly is connected with the clarified sugarcane juice vat, and a clear liquid outlet of the organic nanofiltration membrane assembly is connected with a nanofiltration clear liquid vat; a juice inlet of a second ceramic ultrafiltration membrane assembly is connected with a nanofiltration concentrated liquid vat, and a clear liquid outlet of the second ceramic ultrafiltration membrane assembly is connected with a concentrated sugarcane juice aseptic filling chamber; a juice inlet of an organic reverse osmosis membrane assembly is connected with the nanofiltration clear liquid vat, and a clear liquid outlet of the organic reverse osmosis membrane assembly is connected with a reverse osmosis clear liquid vat; and a juice inlet of a third ceramic ultrafiltration membrane assembly is connected with the reverse osmosis clear liquid vat, and a clear liquid outlet of the third ceramic ultrafiltration membrane assembly is connected with a sugarcane drinking water aseptic filling chamber. According to the invention, sugarcane is used as a raw material for parallel production of concentrated sugarcane juice and sugarcane drinking water, so the added value of sugarcane is increased.

Description

Technical field [0001] The invention relates to a device for parallel production of sugarcane concentrated juice and sugarcane drinking water with multi-stage membranes, belonging to the technical field of food processing. [0002] technical background [0003] Sugarcane is not only a raw material for sugar production, but also a unique fruit in the subtropical and tropical regions. Its rich juice, high sugar content, sweet taste, and widely loved by people. In addition, sugarcane also has the functions of clearing away heat and detoxifying, producing body fluid and quenching thirst, relieving vomiting in the stomach, and nourishing yin and moisturizing dryness. It is a high-quality raw material for beverage production. At present, there are two main methods for making beverages with sugarcane juice: one is to directly extract sugarcane juice to prepare a beverage; the other is to first process sugarcane into sugarcane concentrate, and then use the concentrated juice to prepare a ...

AI Technical Summary

Problems solved by technology

Though this method can process the sugarcane concentrated juice that concentration is higher, thus helps to save the cost of transportation and storage, but still has many deficiencies: (1) after the sugarcane is squeezed out of the juice, the enzyme is deactivated, and the enzyme deactivation temperature High temperature (95-100°C) can easily cause the decomposition of heat-sensitive substances in sugarcane juice, such as sterols, alkanols and polyphenols, etc., resulting in the loss of nutrients and flavor substances in sugarcane juice; (2) Before ultrafiltration and clarification It needs to go through two cumbersome processes of centrifugation and enzymatic hydrolysis, high energy consumption, and sugarcane juice contains more nutrients needed for microbial growth, coupled with long enzymatic hydrolysis time (60-90min), it is very easy to infect bacteria , will cause sugarcane juice to deteriorate; (3) The temperature of evaporation and concentration is relatively high (the temperature of first-effect evaporation is close to 90°C), and the entrainment of mist in the evaporation process will cause a large loss of aromatic substances in sugarcane juice; (4) The heat load of thermal sterilization will lead to the destruction of flavor substances and nutrients in sugarcane juice, thus affecting the quality of sugarcane juice

Although this method extracts the water in the sugarcane and processes it into drinking water, it can extract the sugar in the sugarcane at the same time, but the condensed water of the first and second effects comes from the clarified sugarcane juice, and the sugarcane juice clarification process Added more chemical reagents as clarifiers, such as: lime, SO 2 , phosphoric acid and polyacrylamide, etc., the water obtained in this way will inevitably destroy the free radicals beneficial to the human body in sugarcane water, and even leave a small amount of harmful chemical substances, especially the monomer (acrylic acid) for synthesizing polyacrylamide. a carcinogen

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