Quality classification By production area In general, the scented scent is graded according to the place of production, aroma and resin content; the same type of sinuous scented tree, produced in different producing areas, often has a great difference in aroma; whether this phenomenon is related to related microbes, environmental factors, etc. Further Discussion. Agarwood produced in India, Thailand, Vietnam, Khmer, and Hainan is considered to be of a higher grade; Malaysian products are generally considered to be medium goods, while Indonesia, Babya New Guinea and other places are generally Considered to be a lower grade person. By gravity The traditional method of grading is often determined by the ratio of the product from the same origin to that of water: those who sink in water are known as agarwood; those that are semi-submerged and semi-submersed are stacked incense; those that float in water are known as Huang Shuxiang; those that are aloof are those that exceed the resin content. 25%; while the fat content gradually decreased, it is also a stack incense; and Huang Shuxiang; the proportion of the agarwood wood is about 0.4; in South Korea and Japan, the resin content of more than 25% of the incense can be medicinal; in China is Set it as 15% or more. According to the color classification of Chen Xiang's color grading, there are many opinions: Generally, those who think that the color is black and shiny are the top grades; according to Chen Ran’s overseas Yat records, there are five kinds of Aquilaria color: the first level is green and the second level is deep Green, the third level is golden yellow, the fourth level is yellow, and the fifth level is black. In general cognition, it is thought that the color of agarwood is black, but in fact, in the incense which has a high resin content, black is rare. The incense has almost no odor before burning. The higher the resin concentration, the more aroma of the flavonoids when burned, which is mild and not pungent and pungent. The presumed cause is nothing other than the original plant fibers, which can turn into pungent when burned. It is related to the reduction or disappearance of bitter substances. According to special quality points The general agarwood texture is hard, while there is another kind of soft and sexual sputum, the scraping of the knife can be squeezed into pills, and the teeth are chewed; the resin content is higher than that of the incense, and the quantity is small and the quality is excellent; Nan, Qi Nan, or Qi Nanxiang are called; the fragrance of Gan Nanxiang is much better than the general incense, plus its scarcity and preciousness, and it is usually self-contained when grading. China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.bodybuildingoil.com