White yam beverage and preparation method

Abstract

The invention discloses a white yam beverage and a preparation method. The method includes: selecting fresh white yam, carrying out cleaning, peeling, fine sorting and weighing; steaming the white yam, conducting slurrying combining pulping by a pulping machine and homogenization by a homogenizer; dissolving a white yam protein stabilizer, a starch stabilizer and a sweetener in advance, conducting filtering, then mixing the product with a white yam juice uniformly, and adding a sour agent to prepare a semi-finished beverage product; subjecting the semi-finished beverage product to filtering, homogenizing, degassing, and high temperature instant sterilization; performing filling, sealing, sterilizing and cooling; and conducting quality inspection, thus obtaining a finished product. By employing the pulping-homogenization combined technology, the juice fineness can be enhanced, and stability of the finished beverage product is improved. By adding the white yam protein stabilizer, the protein can be protected from heating and acid adding and cannot denature, and the protein can be prevented from precipitating. For the pop can canned white yam beverage, a sterilization technology combining high temperature instantaneous sterilization and post-sterilization is employed, the sterilizing time and intensity are reduced, and nutrient loss and protein denaturation can be prevented. The method provided in the invention solves the problems that uncongealed beancurd-like protein precipitation is likely to occur during preparation, or after a period of time of placing, the precipitate delaminates, and the appearance and the taste become worse. The finished beverage product is uniformly milky white, and at the same time has the peculiar fragrance of steamed white yam.

Description

technical field [0001] The invention belongs to the field of beverages, and in particular relates to a preparation method of white yam beverage. Background technique [0002] Yam is also known as sweet potato and yam. Traditional Chinese medicine believes that yam "mainly nourishes deficiency in the injury, eliminates cold and heat evil spirits, nourishes the middle and strengthens energy, builds muscles, and makes ears and eyes smart after long-term use." Many classical medical books have made a high evaluation of yam. In the folk, yam is a well-known nourishing product. It contains protein, saponin, polysaccharides, vitamins, fat, choline, amylase and other ingredients, and also contains iodine, calcium, iron, phosphorus and other indispensable inorganic substances. Salt and trace elements. [0003] White yam, commonly known as "Xiaobaizui", is a characteristic planting variety in Hengshui, Hebei. According to modern scientific analysis, the biggest feature of white yam...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of white yam beverage, aiming to solve the problem that tofu brain-like protein is prone to be pr

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