3 results about "Starch grain" patented technology

This invention relates to the field of wood processing technology, specifically a method for processing and preparing wood materials. The invention first involves eliminating permeability barriers in the wood material by removing starch granules from the cell cavities to form continuous permeation channels, followed by drying to a moisture content of 6%–12%. A eutectic solvent is prepared by mixing choline chloride with an organic acid hydrogen bond donor at a molar ratio of 1:2. The eutectic solvent is then impregnated into the wood material using a vacuum negative pressure impregnation process, and held at 65–75°C for 2–4 hours to increase the content of active hydroxyl groups in lignin while ensuring the loss rate does not exceed 8%. A bio-based crosslinking agent is directly added during the impregnation process, resulting in the in-situ formation of a crosslinked network within the cell wall through esterification. After hot-press curing and gradient drying, the eutectic solvent is recovered and recycled. This invention achieves a synergistic improvement in the mechanical properties, dimensional stability, and durability of the wood material, with formaldehyde emissions meeting the requirements of GB18580 standard, and a eutectic solvent recovery rate of not less than 85%.

The present application relates to the technical field of drying equipment, and particularly relates to a corn starch grain cyclone dryer, which comprises a horizontally arranged spiral channel, one end of the spiral channel is provided with an air inlet pipe for supplying high-temperature airflow into the spiral channel and a feeding pipe for supplying starch grain material into the spiral channel; the high-temperature airflow and the material are made to enter from one end of the spiral channel and to be discharged from the other end of the spiral channel by taking the horizontally arranged spiral channel as a drying main body, so that continuous drying processing of the material can be realized, the material is spirally and unidirectionally moved under the driving of the high-temperature airflow, and drying is completed in the moving process; meanwhile, based on the horizontal arrangement of the spiral channel, the airflow flow direction and the gravity direction have the same or opposite relationship in different areas, the motion track of the material particles is differentiated, the material is reciprocally moved in the radial direction of the spiral channel, and the material is prevented from being concentrated in a single area for a long time.

This invention discloses a starch grain development-related gene, OsESG2, and its applications. The nucleotide sequence of the gene OsESG2 provided by this invention is shown in SEQ ID NO.1 or SEQ ID NO.2. Introducing the encoding gene OsESG2 into plants with abnormal starch grain development can cultivate plants with normal starch grain development. The gene and its encoded protein can be applied to crop genetic improvement.