Preparation method of sugar-rich flavor fructus momordicae concentrated juice

Abstract

The invention provides a preparation method of sugar-rich flavor fructus momordicae concentrated juice. The preparation method comprises the following steps of: taking waste liquid generated in a process of preparing mogroside as a raw material; filtering the waste liquid, concentrating in vacuum, carrying out alcohol precipitation, recycling alcohol, de-coloring resin and adjusting the pH (potential of Hydrogen) value; and then concentrating in vacuum to obtain the sugar-rich flavor fructus momordicae concentrated juice. The method provided by the invention has a simple technological flow andtechnological parameters are easy to control; used equipment is common and necessary equipment in the industry; the used raw material is the waste liquid generated in a production process of the mogroside, so that excessive sewage emission is avoided and the sewage treatment pressure is alleviated; the comprehensive utilization rate of fructus momordicae resources is also improved; a harmful solvent, an enzyme preparation or other non-natural auxiliary materials or processing auxiliary agents are not introduced so that the characteristic that a product is purely natural is ensured; the obtained concentrated juice has uniform texture and a light yellow to slight yellow color; after the concentrated juice is brewed, the concentrated juice is clear and transparent and has a colorless to light yellow color; and the concentrated juice has a sweet and soft taste and a rich flavor and has the unique fresh and delicious quality of fructus momordicae.

Description

technical field [0001] The present invention relates to a kind of preparation method of beverage grosvenor fruit juice, especially relate to a kind of preparation method of grosvenor fruit concentrated juice. Background technique [0002] Luo Han Guo is a plant of the genus Luo Han Guo in the Cucurbitaceae family. Siraitia grosvenorii (Swingle) C.Jeffery] ripe fruit. The theory of traditional Chinese medicine believes that it is cool in nature and sweet in taste, has the effect of clearing away heat and quenching thirst, moistening the lungs and relieving cough, and is generally used to treat sore throat, loss of voice in the throat, chronic bronchitis, asthma, constipation and other diseases. In addition, modern pharmacological studies have shown that it has low toxicity and a large safety factor, and has the functions of lowering blood sugar, protecting the liver, anti-oxidation, and improving the body's immunity. [0003] After years of research and development, it has ...

AI Technical Summary

Problems solved by technology

[0007] CN108813257A discloses a method for obtaining the concentrated juice of Luo Han Guo by selecting fresh Luo Han Guo through drying, crushing, cooking, filtering and concentrating processes. Although such a technological process is simple and easy to operate, the concentrated juice produced is not uniform and prone to precipitation. After soaking, the color is darker, not clear and transparent

[0008] CN107397103A discloses a method for preparing decolorized Luo Han Guo concentrated juice through flash extraction, centrifugation, enzymolysis, ultrafiltration, decolorization, nanofiltration, concentration, sterilization and other processes. Although the flash extraction method retains large Some nutrients, but also lead to excessive impurities being leached, increasing the difficulty of subsequent impurity removal, investment in disc centrifugal equipment, enzyme preparations, ultrafiltration equipment, and nanofiltration equipment will increase product production costs

In addition, the enzymatic hydrolysis process may add additional components or change the proportion of components in the extract, such as an increase in the proportion of galacturonic acid, which will lead to a decrease in the pH value of the material system and affect the taste of the finished product. It does not have the characteristics of "pure natural"

[0009] The technical scheme disclosed by CN107156563B also uses fresh Luo Han Guo as a raw material, and the process flow includes 15 steps of saccharification, fruit selection, crushing, percolation extraction, disc centrifugation, and 0.45um ceramic membrane microfiltration to obtain fresh Luo Han Guo concentrated juice. Although the concentrated juice has good clarity, light color and high quality, the whole process is very cumbersome, the production equipment and labor costs are relatively large, the production cycle is long, and the actual production cost is extremely high

In the process, the material is alkaline after the decolorization of the resin column, and the general decolorization effect of the subsequent activated carbon under alkaline conditions is not ideal

Moreover, the use of activated carbon increases the input of subsequent plate frame and titanium rod fine filtration, and due to the presence of macromolecular polysaccharides, pectin, and protein substances in the material, ceramic membranes with different pores are used for clarification, resulting in the investment of the entire process equipment Many, complex process, high production cost