In the current market, there are many types of liquid fertilizers. How to identify the quality is mainly from several aspects: one look, two, three, and four.
Look at the physical state. Good liquid fertilizer products are clear and transparent, clean and free of impurities, and there may be many solid insolubles in poor quality products.
Said the quality of the product. The heavier the liquid product of the same volume, the greater the specific gravity. Therefore, the specific gravity is an important indicator to measure the quality of liquid fertilizer products. Good products do not necessarily have a large proportion, but the positive content of small proportion is not sufficient.
Smell the smell of the product. Good products have no smell. There is a strong ammonia smell, the pH is not well mastered, a special fragrance is generally used to cover certain odors, and a pungent odor is generally added to the substance that should not be added.
Freeze test stability. Good products are placed in the refrigerator for 24 hours and will not crystallize. If the layer is crystallized, there is no choice of raw materials in the production process and no control of the production process.
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Anthocyanidin, also known as anthocyanin, is a class of water-soluble natural pigments, flavonoid compounds, widely found in plants. It is also the main coloring substance in plant petals, and most of the colorful colors of fruits, vegetables and flowers are related to it.Anthocyanins belong to the flavonoids (flavonoids) of the phenolic compounds.
Anthocyanins provide a variety of benefits to the human body. Fundamentally, anthocyanins are a powerful anti
oxidizer, which protects the body from damage caused by a harmful substance called free radicals. Anthocyanins also enhance the elasticity of blood vessels, improve the circulatory system and smoothness of the skin, inhibit inflammation and allergies, and improve the flexibility of joints.
Also used in cosmetics, such as red anthocyanins for lipstick. These commercial pigments (in addition to grape skin pigment) is a common feature of light, heat, oxygen stability, microbial stability. Generally soluble in water and ethanol, insoluble in vegetable oil.
There are over 300 different anthocyanins in nature. They come from different fruits and vegetables such as purple sweet potatoes, lingonberries, cranberries, blueberries, black goji berries, grapes, elderberries, blackcurrants, purple carrots, and red kale, ranging in color from red to blue. These anthocyanins mainly contain Delchindin, Cyanidin, Petunidin and Peonidin. Of these, blueberries contain the largest amount of anthocyanins and have the most nutritional value.
Anthocyanins,Cyanidin,Proantho Cyanidins
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