Se-enriched Health Tea Product Development

Selenium is necessary for the metabolism of human body trace element, has a variety of immune and biological function of human body. At present our country most of the region, selenium intake per capita is lower than the lowest selenium intake of nutrition society regulations of the state to find the ideal bligh selenium food to improve and meet the balance of the level of selenium in the human body has become inevitable. And obesity is a sharp increase in our country, the reason is the main and most people do not pay attention to health care, poor diet, and to prevent weight loss products, there are many on the market, but has obvious curative effect. In this paper, based on the characteristics of selenium and the characteristics of lotus leaf tea, health tea series products developed selenium-rich lotus leaf, and the effect of processing parameters, the product formula and health research and verification, the conclusion is as follows:1. The raw materials of dried process of lotus leaf, test the heat pump drying technology, the study found that in the heat pump drying machine parameter is set to wind speed 1.8 m/s, the temperature of 45.2 ℃, the lotus leaf better sensory quality of raw materials and the total content of flavonoids in the lotus leaf is higher, and validated in the process parameters, the properties of products stabilizes, is feasible.2. After the rich selenium lotus leaf in the health care tea ingredients added amount of single factor experiment and orthogonal experiment, the optimum formula of seenriched lotus leaf health care tea is: lotus leaf adding amount was 78.4% g, xingyang maojian tea addition amount of 6.4%, licorice addition amount of 6.4% 7.2%, hawthorn, chrysanthemum adding amount was 2.4%. After verification test, the product has good sensory quality, under the formula stability.3. According to the experiment design method, this paper found that the health care tea selenium-rich lotus leaf has significant role in preventing obesity in mice, seleniumrich lotus leaf health care tea can significantly slow weight gain in mice, and health care tea selenium-rich lotus leaf of fatty liver in mice has good prevention effect, selenium in mice had no obvious effect reducing weight.4. The series of studies on direct drinking selenium-rich tea powder, direct drinking selenium-rich tea powder through experiment of superfine grinding process parameters as follows: the superfine grinding time of 25 min, 20 Hz frequency of superfine grinding and wind speed 1.5 m/s, on this condition, Most direct drinking selenium-richtea powder particle size to achieve 200 size;Drinking the best formula of se-enriched tea powder are as follows: stevia glycosides content of 1.2%, sodium chloride content of 2%, green tea essence content of 2.8%, under this condition, direct drinking seleniumrich tea powder has good taste, flavor and color stability; Direct drinking selenium-rich tea powder mixing stability good formula is: single gan silica 0.1%, fat 1.2%, Arabic gum 20%, under this condition, direct drinking selenium-rich tea powder can be blunt tonality is good, good stability.