Peach gum is a light yellow and transparent solid natural resin that is harvested in summer and autumn. Its composition is roughly the same as gum arabic. It has a sweet, bitter taste, mild taste, and is non-toxic. It has the effects of clearing away heat, quenching thirst, analgesic, beautifying, and anti-aging. It is mainly used to treat stone stranguria, bloody stranguria, and dysentery. But its effect is also related to good peach gum. Let’s take a look at how to choose peach gum.

There are two types of peach gum currently on the market, one is raw peach gum, and the other is refined peach gum. No matter which one is used, it may be fake.

Original peach gum

Original peach gum refers to the edible tender peach gum picked directly from the tree without treatment. The quality requirements for the purity of the gum are high and there is no fixed form. The size and color are also uneven in depth. The reason is that other gums are mixed into peach gum and sold as peach gum. For example, rosin gum from chemical raw materials can be mixed into peach gum. The appearance of the two is similar, but rosin gum is The longer it is kept, the more yellow and beautiful it becomes, and the smell is a bit pungent, which is very different from peach gum.

Refined peach gum

The raw material of refined peach gum is not necessarily peach gum, and the purity can also be refined. It is soaked and then solidified (this Baidu search It is found in the search), which is a secondary oxidation-reduction process. The processing agents and equipment used in this process are relatively high. The peach gum produced will have no impurities, uniform particles, and a fixed color and size.

At room temperature, peach gum can slowly dissolve in aqueous solution. As the temperature increases, the dissolution rate accelerates until it is completely dissolved. When cooled to room temperature, it can still maintain a stable state without gelation or precipitation. As the concentration of glue increases, the viscosity also increases, and the changing trend becomes more and more obvious. Under acidic conditions, the glue has a greater viscosity. The change in viscosity is when the pH value is 2~3, the viscosity is 25~28mP.s; when the pH value is 5, the viscosity is the largest, reaching the range of 30~40mP.s. Temperature also affects the viscosity of the glue. As the temperature of the glue increases, the viscosity decreases. The solution of peach gum is colorless and transparent, with a viscous texture and a light taste.

Warm reminder

When buying peach gum, please note that good peach gum is not necessarily bright, impurity-free, and uniform in size. Many unscrupulous merchants sell industrial peach gum, that is, through Melt and then shape. Such peach gum may contain harmful substances. If you are afraid of fakes, it is best to buy edible raw gum, which is sold directly from the original place of production, which is safer.