How to distinguish the good from the bad of Dendrobium?

1. Chew without slag and strong viscosity: "no slag" and "sticky" are synonymous with high-quality Dendrobium officinalis, and such words are commonly used in the industry to describe good quality Dendrobium officinalis. The so-called "no residue" means that the fiber content is low, and the fresh stem is brittle and easy to break; "Strong viscosity" reflects the polysaccharides in Dendrobium.

High content characteristics.

2. Soft feet and hard feet: "soft feet" and "hard feet" are another traditional way of saying to evaluate the quality of Dendrobium officinalis. The soft feet represent the high-quality Dendrobium officinale, which is coarser and less fiber, and will become soft after baking; Whereas, hard feet are more slender and have more fibers, which will become stiffer after baking.

3. Red rod and green rod: From the appearance, the stem color is purple-red, or even crimson, which means that the Dendrobium officinale is of good quality, good appearance, and is expensive, and is usually called "red rod iron sheet" in the industry; The color is yellow-green or blue, the quality is poor, the appearance is not good, and the ** is low, so this kind of dendrobium is called "green rod iron sheet".

Our family is planting Dendrobium, we have an understanding of this, there are many types of Dendrobium, a good Dendrobium is Dendrobium, and other Dendrobium are used to pass off as Dendrobium.

Dendrobium officinalis characteristics:

1. Dendrobium officinale is a variety of varieties with high mucus juice content, a little sticky when chewing, and a strong tonic Dendrobium polysaccharide content;

Second, Dendrobium officinale has no fiber when chewed, there is not much slag, and it can basically melt in the mouth after chewing;

3. Dendrobium officinale has no bitter taste, strange taste and medicinal taste, and the taste is light, sweet, and palatability.

How to choose a good dendrobium.

It is important to remember some of the basic characteristics of dendrobium: mostly cylindrical or cylindrical segments, the surface is purple-red, greenish-purple is good, shiny, there are obvious rust spots, and there are visible tan nodes; There are many scattered tendon points, chewing is sticky, the taste is licorice, the more viscous the better.

Fresh Dendrobium officinalis, the stems are mainly divided into green and reddish two, both of which are very good quality Dendrobium. Generally, the green stems are slightly longer, and the reddish stems are shorter.

I hope my advice is helpful to you, hope, thank you

Distinguishing the quality of Dendrobium officinale can be distinguished as follows: (1) A good Dendrobium officinale will have very fine hairs on the outside, and the color of the maple bucket is yellow and green. (2) A good dendrobium is relatively hard, and it will break if you pull it gently.

3) Put good dendrobium in your mouth, and when you chew it, it feels sweet and sticky to your teeth. (4) A good dendrobium feels like it will have a slight grass fragrance. However, it is not so easy to buy good dendrobium, and some veterans only buy Fu.

The brand of dendrobium in Linmen can guarantee the authenticity.

Good dendrobium is a lot of gelatin, as soon as you put it in the mouth, there is a feeling of sticky teeth, and there is a good dendrobium is easy to break, the taste has the taste of licorice, and the color is also better, if you have the above characteristics, it is a good dendrobium, often eat dendrobium can nourish yin and jin, enhance physical fitness, tonify, spleen and stomach, protect the liver, strengthen the gallbladder tendons, lower lipids, reduce blood sugar, inhibit tumors, brighten the eyes, nourish the skin and prolong life, you can prepare a few bottles of Changhong dendrobium at home, 3 grams in the morning and evening with some wolfberry soaked in water to drink.

A friend sent Dendrobium officinale and asked me to identify the good and bad, hoping that my sharing can help everyone.

The general judgment in the market is whether there is a lot of slag, and if there is no slag, it is good, which is the main premise. But dendrobium, as the first of the nine immortal grasses in China, must have its own merits, so it will be called fairy grass, otherwise why not apples and bananas? One of its most prominent features is that it clears the stomach and heats, and the tongue coating is yellow for a few days.

This is a good feature of Dendrobium officinale, and other polysaccharide content and free radicals are all legends and blindness.

It takes about 5 years from cultivation to planting to being ready for the first harvest, and the yield is very low. And it must be grown in the high mountains to be considered a good dendrobium, authentic dendrobium.

Due to the long growth cycle, low yield, and the limitation of growth area, the best of this kind of product is destined to be very high. Generally speaking, the market is ** in 900-1200, because of the quality, **slightly surprised. Therefore, it is safe to say that the 200 yuan dendrobium is definitely not dendrobium, at least not the real dendrobium.

It is recommended to choose a brand of dendrobium to buy, such as Kangenbei's. If necessary, you can contact me, I can help you distinguish the authenticity of Dendrobium, I have bought this thing many times, and I have been deceived several times.

Some are effective, and some are better than buying some greens to eat.

The 2010 edition of the Chinese Pharmacopoeia made new provisions on the identification, inspection and content determination of Dendrobium officinalis medicinal materials, and the polysaccharide content of Maple officinalis was not less than 25%, and the mannose content was. This is a physical way of identification, which the average consumer can't do.

According to our experience in the research of Dendrobium officinale for many years, there are some ways to identify, which can be summarized as one look, two tastes, three pulls and four bubbles:

At a glance: the surface of the iron maple bucket is dark yellow-green or golden-green, with fine longitudinal wrinkles, obvious nodes, uniform particle size, and visible filaments.

Second taste: smell a faint grass aroma, light taste, sticky and slippery at the beginning of chewing, and a strong sense of stickiness for a long time, no slag or less slag. Those with a bitter taste or a lot of residue without stickiness should be fake.

Three pulls: due to the high content of polysaccharides, the iron maple bucket is firm and slightly brittle, easy to break, and the section is uneven. If it is stretched for a long time, it is considered a counterfeit.

Four bubbles: The soup color of the iron maple bucket is light yellow after soaking in hot water, and the soup color is light purple red after soaking in hot water.

In addition, the key points for distinguishing the authenticity of fresh Dendrobium officinale products are as follows:

Appearance: Dendrobium officinale with or without leaves fresh strips, stems, long strips, narrow knots, iron green, with the texture of jade; After breaking, it is viscous and gelatinous, with a length of about 10 cm.

Taste: Dendrobium officinalis has a light herbaceous aroma with a slight sweetness; The entrance is viscous, rich in mucus, sticky teeth; The taste is slightly sweet, and the slag is less; There are more fake slags, bitter taste, and lack of mucus.

Excerpted from "100 Questions on Dendrobium officinalis" published by China Agricultural Science and Technology Press

The state stipulates more than 25%, but the polysaccharide content of Dendrobium officinalis sampled by the state is as high as more than 50%, which has medicinal value. It is recommended not to eat Dendrobium purple, which has no medicinal value, and the polysaccharide content of Dendrobium officinalis is much lower than that of Dendrobium officinalis, which is a substandard Dendrobium officinalis, which is mostly used for counterfeiting Dendrobium officinalis.

Dendrobium officinale is an orchid plant, and Dendrobium officinale is the fresh or dried stem of the orchid plant Dendrobium officinalis. The efficacy value is different. Dendrobium officinale is one of the most valuable plants in medicine, known as "life-saving fairy grass" in the folk, and the international medicinal plant community calls it "the giant panda in the pharmaceutical world".

In addition to several medicinal dendrobiums such as Huoshan Dendrobium, Dendrobium nobile hairpin, Dendrobium purple, Dendrobium drumstick, Dendrobium verbena, Dendrobium copperskin and other medicinal Dendrobiums, most of the other Dendrobiums only have ornamental value.

The market is very different. Dendrobium officinale is 5 100 times more expensive than other Dendrobiums. At present, there is a phenomenon of using dendrobium to pass off as dendrobium, and consumers should be more discerning when purchasing.

The efficacy and role of Dendrobium officinalis.

1. Nourish yin: Dendrobium officinale has the effect of moisturizing the body organs, cerebral marrow and bones, and inhibiting yang hyperactivity, while yin fluid is the material basis of human life activities, which can fundamentally solve the problem of insufficient yin fluid in the human body.

2. Nourishing yin and nourishing blood: Dendrobium officinale has the function of nourishing yin and nourishing blood, and rich polysaccharides have the effect of enhancing immune function, which can enhance the phagocytosis ability of abdominal macrophages to chicken red blood cells.

3. Nourish the spleen and stomach: Dendrobium officinale has a good inhibitory effect on Helicobacter pylori, a common pathogenic bacteria in spleen and stomach diseases, and can promote the secretion of gastric juice, enhance gastric emptying ability, and help digestion.

4. Liver protection and gallbladder reliever: Dendrobium officinale has been considered by doctors throughout the ages to have the effect of nourishing liver yin, and can be used for hepatobiliary diseases such as hepatitis, cholecystitis, and gallstones.

The difference between Dendrobium and Dendrobium: There is a big difference between Dendrobium and Dendrobium, don't make a mistake.

The difference between Dendrobium officinale and Dendrobium officinalis is mainly reflected in three aspects.

One is the stem, the stem of Dendrobium officinale is cylindrical, 9-35 cm long, without branches, and has many nodes. Instead, the stem of Dendrobium is slightly flattened, longer than the former, about 10-60 cm.

The second is the leaves, the leaves of Dendrobium officinale are papery, oblong-lanceolate, and the leaves of Dendrobium are leathery and oblong.

The third is the flowers, the Dendrobium flowers are yellow-green, and the Dendrobium flowers are white with purple tips.

1. Appearance characteristics: The epidermis of high-quality Dendrobium officinale is iron green, and the sheath (i.e., the outermost epidermis) is intact and has obvious black nodes. Observed closely, its segments are distinct, the nodes are short and numerous, and stout, the two ends are thin and the middle is thick.

In terms of stem shape, the thicker the stem, the better, and the high-quality fresh strips tend to be shorter rather than longer. In addition, the cross-section of the cross-cut Dendrobium officinale is a fresh emerald green, and obvious gum can be seen, and the appearance is crystal clear. High-quality fresh iron strips have little or no fiber, so if the fiber can be easily seen from the cross-section, Dendrobium officinale is usually a counterfeit.

2. Taste and texture: Traditional Chinese medicine classics record that Dendrobium officinale tastes slightly sweet or bland, and exudes a fresh grass fragrance. When you actually taste Dendrobium, you can still feel a more obvious gelatinous stickiness, and even if you chew it for a long time, the residue of Dendrobium is very small.

If the dendrobium bought by consumers has a bitter or sour taste, or the juice is scarce and the dregs are excessive, then it can be asserted that its quality must be bad.

3. Ingredients: The internal composition is an important indicator to distinguish the advantages and disadvantages of Dendrobium officinalis. High-quality Dendrobium officinale requires branches to contain more active polysaccharides, dendrobine and trace elements, among which Dendrobium polysaccharides are the main medicinal components of plants, and its content directly determines the taste and taking effect of Dendrobium officinalis.

Generally speaking, the polysaccharide content of Dendrobium officinale is generally 30%-40%, while the high-quality Dendrobium officinale produced in Guangnan County, Yunnan Province can reach more than 40%. Therefore, it is recommended that when choosing Dendrobium officinalis, we must carefully check the quality inspection report, and buy products with low polysaccharide content carefully.

4. Heavy metal content and pesticide residues: a small number of Dendrobium growers in the upstream link blindly pursue yield and use pesticides, fertilizers and other means to mature plants; However, due to the small scale and lack of standardized operation awareness, the soil and water sources of Dendrobium planting are often not controlled, resulting in excessive pesticide residues and heavy metals of Dendrobium officinalis, which endangers the health of consumers. Mature Dendrobium officinale production enterprises have realized the importance of organic and standardized planting, and have begun to consciously practice this high-standard product system.

Yueqing City, Zhejiang Province is the hometown of Dendrobium officinale in China, and has been operating Dendrobium medicinal materials for 60 years since the founding of the People's Republic of China, and the provenance of Yandang Mountain is one of the best quality provenances of Dendrobium officinale in China.

Yandang Mountain Herb Garden", all green, ecological planting, pollution-free, there is a detailed introduction, providing a variety of Dendrobium officinale products, and Dendrobium fresh strips, there are also Dendrobium seedlings suitable for their own planting, because they have their own planting base, are self-produced and sold, ** very fair, more suitable for the trial seedlings of beginners, if you are interested in trying to plant, cut a little of your own planting to eat, how is it not a pleasure.

First determine the variety of its dendrobium, one hard foot, two soft foot green rod, three soft foot red rod, the better is also the lowest yield is the soft foot red rod, a hair is basically three years old, naturally is good; As for the taste, it is recommended to check it on the Internet, for example, if two and three are not fresh strips, it is more difficult for you to distinguish which one is good and bad, no matter what variety of newly sealed buds The moisture is relatively high, after sealing the buds, it is not growing, it begins to grow thick, and the two months after the buds are sealed is the highest polysaccharide content, or the best before January - March every year! After March, it will bloom one after another, and the value will decrease after the polysaccharide content after flowering, if you are a consumer and the experience has not reached its peak, it is recommended not to buy maple buckets (similar shapes) or powdered (leaves and roots are for you to get in or. Because there is no equipment to inspect now, I have always believed that as long as there is a product, someone will mix the pearls.