The youth factor contained in yam powder after the bran frying process is called yam polysaccharide, which is discussed as follows:

1. It is rich in nutrients, such as protein, fat, carbohydrates, vitamins and minerals. Among them, yam polysaccharide is one of the most important active ingredients in yam, known as "natural youth factor".

2, bran frying process is an important method of yam processing. In the process of stir-frying, the water in the yam is gradually evaporated, and the nutrients of the yam are fully retained and concentrated. At the same time, the bran frying process can also make some of the active ingredients in the yam is activated, so that it is easier for the human body to absorb and use.

3, after the bran frying process of yam powder, its yam polysaccharide content is higher, more bioactive. Therefore, it is known as the "natural youth factor", which is important for maintaining health and delaying aging. However, although yam polysaccharide has many health benefits, it should not be consumed in excess. Excessive consumption of yam may lead to indigestion and may even cause some diseases.

Knowledge of Bran Frying Process

1. Bran Frying Process is a traditional method of preparing traditional Chinese medicines, which is mainly used to enhance the therapeutic efficacy of the medicines and reduce their toxicity. The main steps of bran frying process include material selection, cleaning, wetting, frying and sieving. First of all, material selection is the first step of the bran frying process. The selected herbs must be fresh and free from insects and mold. Then, the herbs are cleaned to remove the soil and impurities on the surface.

2. Next, the cleaned herbs are moistened. The purpose of this step is to make the herbs fully absorb water, so as to facilitate the subsequent frying process. The method of wetting is usually to soak the herbs in water for a period of time depending on the type and size of the herbs. Once moistening is complete, the stir-frying process can begin. The stir-frying process involves placing the herbs in a wok and slowly stir-frying them over moderate heat.

3. Finally, after the frying is completed, the herbs need to be sifted out. The purpose of sieving is to remove the impurities and unfired parts of the herbs to ensure the quality of the herbs.

4, the advantage of the bran frying process is that it can enhance the efficacy of the drug and reduce its toxicity. Because of the bran frying process, the active ingredients in the herbs will be fully extracted, and at the same time, some toxic ingredients will also be destroyed or reduce its toxicity. In addition, the bran-frying process can also improve the taste and appearance of the herbs, and improve the convenience of their taking.

5. However, there are some problems with the bran frying process. Firstly, the process of stir-frying requires a certain degree of skill and experience, and improper operation may lead to a decline in the quality of the herbs. Secondly, the efficiency of the process is low, and it is not suitable for mass production. Finally, the bran frying process will produce a certain amount of smoke and exhaust gas, which has a certain impact on the environment and human health.