Can baking powder replace yeast powder? What are the practical skills of yeast powder
4hw.org: we usually steam bread and toast with some baking powder to make the flour ferment faster. Sometimes the baking powder is used up. Can we use yeast powder instead? What are the skills of using yeast powder? Let's have a look!
Can baking powder be replaced by yeast powder?
The answer is yes.
Baking powder is a mixture of baking soda, acid raw materials and corn starch. Since baking soda is alkaline and the fermentation degree is limited, some acid raw materials will be added to keep the acid-base balance, and corn starch will be added at the same time to make the acid-base balance of baking powder. In this way, the chemical reaction will be more intense when making dough, and a large amount of carbon dioxide will be generated, which naturally can Make the dough more loose.
The advantages of baking powder as pastry are fast fermentation, less limited by the environment, and more affected by temperature and humidity, which often fail to occur in cold weather.
Yeast is a kind of beneficial microorganism, which can replace baking powder. Yeast powder and baking powder are two different substances, but they have the same beauty. The large number of microorganisms in yeast powder can decompose maltose, glucose, etc., so as to release carbon dioxide gas, which can produce numerous small pores in dough. When baking or steaming, it can make the dough soft, which is similar to baking powder. However, yeast has a small disadvantage that it doesn't start as fast as baking powder, and it also needs a temperature and humidity point.
Although the baking powder starts faster, is less limited by the environment, and makes the dough more loose, it is not very good for the human body due to its chemical content, while the yeast powder is more affected by the temperature and humidity, but it is more healthy, so it is recommended to use yeast as the dough. After all, yeast is irreplaceable for human health.
What temperature is needed for yeast powder fermentation?
Yeast is a natural microorganism with activity. If the water temperature is too high, the yeast will die and lose its activity.
In a certain temperature range, with the increase of temperature, the fermentation speed and gas production of yeast also increase, but the maximum temperature should not exceed 38 ℃ ~ 39 ℃.
When the temperature is higher than 47 ℃, yeast cells cannot grow. If the temperature reaches 55-56 ℃, yeast cells will be killed in a few minutes. The optimum growth temperature is generally 20 ℃ ~ 30 ℃.
Can yeast powder be eaten directly?
Whether yeast powder can be eaten directly depends on its kind. Active yeast can't be eaten directly, because living yeast will multiply in large quantity after entering human body, produce carbon dioxide gas, cause flatulence of intestine, and cause discomfort. This kind of yeast must be inactivated before eating. Generally, instant yeast can be eaten. It is a kind of yeast specially cultivated for human body to supplement nutrition. It is a healthy and nutritious food. Compared with other yeast, its vitamin ratio is more scientific and can meet the nutritional needs of human body.
Another kind of yeast is beer yeast powder, which is usually used in weight loss and edible, but it usually tastes bitter and has low vitamin content. It is mainly used for animal feeding, but some people use it to lose weight.