How to identify true and false royal jelly
4hw.org: now people pay more and more attention to health preservation. Royal jelly is the best choice for health preservation. However, for many people, it is difficult to distinguish the true and false quality of royal jelly without long exposure to this product. Some bad businesses even mix royal jelly for money, and the next sihai.com will give you the identification method!
How to identify the real and false of royal jelly on the Internet
There are two kinds of adulterated fresh royal jelly at present:
1. Identification of milk powder and other royal jelly mixed with starch
Identification of starch royal jelly products: drop one or two drops of iodine into the experimental royal jelly products, the pure royal jelly products will be light yellow or orange yellow when exposed to iodine, and the royal jelly products mixed with starch will become blue or purple when exposed to iodine;
Simple method: take a drop of royal jelly and drop it on the paper. After a period of time, if there is any trace of water seepage, the royal jelly will be adulterated.
Add 1g salt with the above boiling method. If there is similar floccule like soybean milk, it is mixed with milk
If there are a large number of bubbles, there are fat bodies and body fluids of honeybee larvae. If there are layers, they are mixed with honey or distilled water.
10ml of the sample is taken from the middle and lower layers for observation after being stationary for 1 day. If it is found to be gray or gray black, it may be mixed with chemical paste. Compared with ordinary honey, the fake bee royal jelly added with sugar water is light, pale or especially bright, without consistency, tasted light or peculiar smell, so it can be concluded that it is fake.
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2. Identification of royal jelly mixed with dairy products
Mix the experimental product and several drops of edible alkali at room temperature. If all the suspended matters are dissolved and in a light yellow transparent state, it means that the sample is pure royal jelly. If it is not dissolved and in a turbid state, it means that the royal jelly of the sample is mixed with dairy products. A small amount of edible alkali noodles or a few drops of 20% NaOH are stirred evenly under normal temperature. If all the suspended matters are dissolved and appear light yellow and transparent, it means that the sample is pure royal jelly. If it is not dissolved and appears turbid, it means that the royal jelly of the sample is mixed with dairy products.
Identification of royal jelly
1. Look: the fresh royal jelly is milky white or light yellow, which is not easy to flow, has a sense of luster, no bubbles, uniform up and down, dark and gray color, too thick, too thin and too thick, and some of the pulps may be fake in bubble state.
2. Smell: the high-quality royal jelly has a unique clear fragrance, and the smell is flat and light. If there is a mixed smell of rotten fermentation, it is fake royal jelly, which may be mixed with honey or sugar if it is too sweet, and may be mixed if it is not astringent enough.
3. Taste: the high-quality royal jelly can only feel the sour, astringent and spicy taste of the tongue, and the aftertaste is slightly sweet. The low-quality products will have residues at the entrance.
4. Rubbing: take a little royal jelly and put it in the palm of your hand. Rub it gently with the fingers of the other hand. It should have a delicate and sticky feeling. If the royal jelly is cooled, small crystal particles can be found.
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Identification of true and false of fresh royal jelly
The color of fresh royal jelly is milky white to light yellow, and some are reddish. The color of royal jelly mainly depends on the source of honey powder, freshness and quality.
(1) the pollen color of the honey powder source plants in the pulping stage is heavy, such as buckwheat, Zanthoxylum and other honey powder sources, whose flower pink is deep, and the royal jelly produced is reddish; while the honey powder sources such as rape, Robinia pseudoacacia and Vitex with light pollen color, the Royal jelly produced in the meantime is milky white or light yellow.
(2) the color of fresh royal jelly is darker when the storage method is improper or the storage time is too long, and the processing method is improper, which causes pollution or adulterants.
The difference between expensive and cheap royal jelly
The quality requirements of royal jelly are not the same all over the world. For example, Japan focuses on judging the quality of royal jelly by the content of 10-HDA, while European and American countries focus on sensory indicators and moisture. 10-HDA is indeed an important component of royal jelly, which can be used to measure the authenticity of royal jelly; however, 10-HDA is stable in nature, even if the royal jelly deteriorates, the content of 10-HDA is almost unchanged. Therefore, it is one-sided and unscientific to measure the quality of royal jelly with the content of 10-HDA. The content of 10-HDA in Chinese royal jelly is more than 1.4%. The superior royal jelly is milky white, with obvious luster, no impurities and bubbles, strong fragrance and positive smell. It has obvious sour and astringent taste, spicy taste and slightly sweet aftertaste, without fermentation, odor and other peculiar smell. The water content is 62.5-67.5%.
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Most of royal jelly in China is used for export, and the acid index of royal jelly imported from foreign countries must be more than 2.0%. The content of royal jelly acid in some royal jelly in China is only 1.4%. In order to export, it is necessary to extract royal jelly acid from one part of royal jelly and add it into another part of royal jelly to reach the 2.0% royal jelly acid index.
That part of the royal jelly which has been extracted with royal jelly acid has become the "filter goods" commonly known by the insiders. Some illegal traders buy these "filter goods" at low prices, and make huge profits from them, and cheat consumers. There is not much nutritional value after eating.
At present, 'filter goods' in the domestic market come from some large royal jelly processing plants in Zhejiang, Hubei and other places. Superior royal jelly is milky white, with obvious luster, no impurities and bubbles, strong fragrance and positive smell, with obvious sour, spicy and sweet aftertaste.
Royal jelly is a milky white substance secreted by the vegetative glands of the bee's upper palate, which is specially used for the consumption of the "queen bee". It contains more than 140 ingredients, and has significant effects on insomnia, endocrine disorders, diabetes, hyperlipidemia, beauty, beauty and immunity enhancement. The real royal jelly is made by taking the original Royal Jelly out of the hive, freezing and keeping fresh, filtering and purifying.
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