Agarwood medicinal material identification

Herbal identification

The harvest can be harvested throughout the year. For those who have planted 10 years and have a DBH of 15 cm or more, the quality of the incense is better. The resin-containing wood was cut, and the resin-free portion was removed and dried. It is better to have a heavy, rich oily foot and dark purple color. For simmering or milling.

Imported incense

The resin-containing wood, which is a plant of incense, is mostly in the form of a column or an irregular rod, a sheet, or a helmet. It is made of a knife and has an irregular shape. It is 7 to 20 cm long and 1.5 to 6 cm in diameter. . The surface is brown, often interlaced with black and yellow, smooth and smooth. Solid, heavy, hard to break, open with a knife, broken open face grayish brown. Can sink in water or semi-sinking. A special aroma and bitter taste. The oil oozes when burning, and the aroma is intense. Mainly produced in India, Malaysia and other places.

Homemade incense

Also known as: Hainan Aquilaria. The resinous wood that is a plant white woody fragrance is mostly irregularly shaped or flake, 3 to 15 cm long and 3 to 6 cm in diameter. Uneven surface, there are processed knife marks. Visible between the dark brown resin-containing portion and the yellow wood cypress, the formation of markings, the surface of its holes and pits showing wood-like. Lighter, thorn-shaped, brown section. Most of them cannot sink. It has a special aroma and bitter taste. When it burns, there is oil leakage, thick smoke, and strong aroma. The main production is Hainan Island in Guangdong, and Guangxi is also producing. Agarwood oily feet, heavy body and sexual delirium, after selection and processing is Jianan incense, see "Ganan Xiang" section. It is better to use heavier black, heavy oil, and strong aroma.

Microscopic features:

1 Aquilaria sinensis: cross-section wood ray width 1-2 rows of cells, cells are elongated in the radial direction, the wall is not woody to micro-wood, some with wall holes, brown resin material with water content. Wood fiber is polygonal, the wall is not thick, woody. The catheters have a round polygonal shape to a square-like shape, often with two integrated clusters and occasionally scattered singles; some catheters are filled with resinous substances. The thin-walled cell wall is not woody. Most of the 10 colonies also have a few surrounding the catheter; they contain brown resin material. Tangential section; wood ray width 1-2 rows of cells, high 4-15 cells. The lengths of the catheter segments vary, with bordered pits. Wood parenchyma cells are rectangular. The wood fiber is slender, with a diameter of about 20-30 nm; there are wall holes; the radial section is horizontal and joint, with the exception of the wooden ray, and the remainder is similar to the tangential section.

2 white wood powder: powder black-brown; fiber tracheid more bundles, was long prismatic, thin wall, radial wall edge hole, tangential wall rare. Tough fibers are rarer, more discreet, 25-45 micrometers in diameter; single twill holes in the tangential wall. Contrary pitted septa are more common, with a diameter of about 28 micromillimeters, with tightly arranged margins, alternating columns, catheters containing yellow-brown resin masses, often broken and prolapsed. Wood ray width 1-2 cells, about 20 cells high. Single pod boreholes are denser and inner phloem parenchyma cells contain yellowish-brown substances; the wall is not woody, and the mycelial erosion shows criss-cross textures. Calcium oxalate crystals are rare. It is a four-sided cylinder with a length of 68 micrometers and a diameter of 9-15 micrometers.

3 Aquilaria powder: dark brown, and the difference between white wood powder is: tough fiber is fine, diameter 6-40 micro millimeters, with a pitted tracheal catheter diameter 150 micrometers, wood ray is mostly wide 1 cell, high to 5 Cells are more common. The columnar crystals are extremely small and grow to 80 micrometers.

Microscopic identification:

1, domestic incense (white wood) powder: black end: black and brown.

1 Most of the fiber tracheid bundle, long spindle shape, diameter 22-29μm, slightly thicker wall, wood, radial wall with bordered pits, tangential wall rare.

2 Tough fibers are rare, mostly scattered, with a diameter of 25-45μm, and a single twill hole in the radial wall.

3 The diameter of the catheter with bordered pits is approximately 128 μm. The bordered pits are arranged closely and line up with each other. The catheter contains yellow-brown resin agglomerates that often break and come out.

4 Wood ray width 1-2 rows of cells, about 20 cells high, single pits more dense.

5 Wood-basted phloem parenchyma cells contain yellow-brown, non-wooden walls with hyphae and crisscross texture.

6 Calcium oxalate crystals are rare and are four-sided cylinders with a length of 68 μm and a diameter of 9-18 μm. In addition, resin agglomerates can be seen.

2, imported incense powder: dark brown. Tough fibers are fine, with a diameter of 16-40 μm. The diameter of the pitted pits is up to 150 μm. The wood ray is mostly 1-2 cells wide, and the high is 5 cells. Very few columnar crystals grow to 80 μm. Pieces of the dish: Philippine thin slices of domestically-made konjac tarpaulin or slanted plane. The surface of the screed can be seen in brownish-black vertical stripes in light-brown tissue. The surface of the slasher or planer can be seen with brown-black markings.

The concocted method is to take the original medicinal materials, remove the decayed white wood, brush it, smash it into small pieces, pounds or shaved into thin slices, or research into fine powder. Stored in a dry container after processing, sealed, cool and dry place.

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