The content of Alipay's daily Ant Manor answers is very interesting, and can bring a good experience of Q&A selection to friends who like to do Q&A. You can also get chicken feed by answering questions every day. The two questions on July 12 are " Which of the following plants was used as a yellow dye in ancient times?" and "Will frozen meat breed bacteria after repeated thawing?" The answers and analysis are given below!
Analysis: There seems to be no problem with repeated thawing of meat. On the surface, it is almost the same as before. In fact, the number of bacteria increases unknowingly, so the bacterial growth rate for this kind of meat is 15 times higher than usual. There are two main reasons for the explosion of bacteria. One is that the bacteria do not completely die when frozen. When the meat is hydrolyzed, its temperature will increase, which is conducive to the survival of bacteria, thus causing the bacteria to explode. Reproduce quickly. The second reason is that during the process of repeated thawing of meat, it will inevitably come into contact with the external environment, leading to the growth of bacteria. While bacteria breed, the nutritional content of the meat itself is also reduced. The nutritional content of meat that is repeatedly thawed is also decreasing, because it is easy for bacteria to grow, and the bacteria will decompose the white meat in the meat, thereby losing the nutrients of the meat itself. Moreover, this kind of meat is not delicious, and the taste becomes even worse, because after long-term freezing, the water content of cells is high and easy to reduce, resulting in a bad taste of the meat.
Analysis: Domestic plant dyes usually include the following types: blue dye - indigo; red dye - madder, safflower, Su Fang (solar mordant); yellow dye - Sophora japonica, turmeric, gardenia, barberry; purple dye - Lithospermum, perilla; brown dye - Dioscorea; black dye - gallnut, hematoxylin (tannin iron mordant).
1. Enter Ant Manor in Alipay and click on the second [Get Feed] icon among the three icons below;
2. Click to open and select the [Manor Small Classroom] dialog box, click the [Go to Answer Questions] button on the right side, and you will see the day's Manor Small Classroom questions;
3. Click on the correct answer. If the answer is correct, you will get 180g of feed. If you answer wrong, you will only get 30g of feed.
4. Feed can be used to feed chickens, just drag the feed in the lower right corner into the chicken feed basin.