Method for preparing fresh rice wine by utilizing ultrahigh-pressure sterilization

Abstract

The invention discloses a method for preparing fresh rice wine by utilizing ultrahigh-pressure sterilization. The method mainly comprises the following steps: 1) processing glutinous rice to obtain cooked glutinous rice; 2) uniformly mixing the cooked glutinous rice with 0.1-0.3% of distiller's yeast based on the weight of the glutinous rice, performing fermenting at 28-30 DEG C for 2-3 days, adding water of which the weight is 1-4 times that of the glutinous rice, performing uniform stirring, continuing to performing fermentation for 2-7 days, stopping fermentation, and performing separatingto obtain fermented wine liquid; and (3) putting the fermented wine liquid into an ultrahigh-pressure sterilization device, and performing sterilization treatment at the treatment temperature of 20-35DEG C under the treatment pressure of 300-450 MPa for 5-25 minutes to obtain the fresh rice wine. According to the invention, the condition that sucrose invertase in the rice wine is inactivated after being heated, can be avoided by adopting ultrahigh-pressure sterilization, so that compared with the existing rice wine, the rice wine has the advantages of fresh taste, delicious taste and rich nutrition, and the long-standing contradiction that the rice wine is not fresh in taste and cannot be stored for a long time while the freshness of the taste is ensured is solved. The invention providesa novel rice wine category conforming to the health concept of modern consumers.

Description

technical field [0001] The invention belongs to the technical field of wine preparation, and in particular relates to a fresh rice wine and a preparation method thereof, more specifically to a method for preparing fresh rice wine by ultra-high pressure sterilization. Background technique [0002] Rice wine, also known as sweet wine, fermented glutinous rice or fermented glutinous rice, is a traditional low-alcohol brewed wine in my country. Made by fermentation, it is rich in glucose, maltose, amino acids, vitamins, organic acids, polysaccharides and other ingredients. Huge market potential and development prospects. [0003] The existing rice wine on the market mainly includes rice wine from Zhejiang, Xiaogan rice wine from Hubei, etc. The brewing process mainly includes the following steps: rice selection→rice washing→rice soaking→steaming→cooling→mixing koji→bottling nests→insulation and saccharification → Fermentation → Pressing → Filtration → Sterilization → Filling → F...

AI Technical Summary

Problems solved by technology

Home-brewed rice wine has much higher nutritional content and flavor than existing rice wines on the market because it has not been pasteurized. In addition, without sterilization treatment, the wine liquid contains more bacteria, which leads to the rice wine being easily rancid after fermentation due to the many bacteria, so that the brewed rice wine has a short storage time, is easy to age, and cannot be commercialized. shortcoming

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