Herbaceous flower seed storage technology

After the harvest, proper seed processing is essential to ensure high-quality flower seeds. First, the cleaning process must be thorough. Once the seeds are collected, they need to be carefully selected and cleaned. This involves removing the entire plant, drying it, and then threshing it to separate the seeds. For fruits, the skin, flesh, and other parts are removed. Flower seeds are typically small, lightweight, and some species have short spines that can stick to or mix with sclerotia, insects, eggs, weed seeds, and other impurities—both living and non-living. Next, drying should be done carefully. After harvesting, herbs and flowers should be sun-dried while still in their shells. Avoid placing seeds directly on cement or metal surfaces in the sun, as this can reduce their viability. Instead, use canvas, mats, or bamboo trays for drying. Some seeds are sensitive to light and should be air-dried in a well-ventilated, shaded area. The safe moisture content for most herbaceous flower seeds should be below 7% to prevent spoilage. For storage, choosing the right packaging is crucial. Flower seeds are often limited in quantity, have a short shelf life, and are costly. Most are packed in polyethylene composite bags, with paper seed bags used as outer covers. Seeds containing aromatic oils should be stored in metal cans, wooden boxes, or tinted glass bottles. Vacuum-sealed or semi-vacuum-sealed aluminum foil bags can also help reduce oxygen levels. Each seed bag should clearly indicate the seed type, harvest date, and other relevant details. Low-temperature and dry storage conditions are ideal. Seeds that have been properly dried and packaged should be kept in a cool, dry, and sealed environment at 2–5°C. Seed containers should be placed on shelves or tables about 50 cm above the ground to avoid moisture contact. Small quantities can be stored in desiccators filled with silica gel, quicklime, or charcoal. These materials help absorb excess moisture and keep the seeds dry. The lifespan of herbaceous flower seeds depends on their vitality and storage conditions. Seeds stored in warm, moist, and poorly ventilated areas lose viability quickly. On the other hand, low temperature, dryness, and slow air circulation help extend their life. Most herbaceous flower seeds last 1–2 years under optimal conditions. Some species like Phlox and Kochia can last up to one year, while Others like Butterfly Flower, Pansy, and Marigold may last 2–3 years. Certain varieties, such as Zinnia and Calendula, can remain viable for up to 4–5 years. Proper management is key to maintaining seed quality. Before storage, the warehouse should be thoroughly cleaned and disinfected. Remove all debris, fertilizers, and pesticides, and lay down tar paper to prevent moisture absorption. A 80% dichlorvos EC solution can be sprayed, followed by 24 hours of ventilation after sealing for 48–72 hours. Smoking is not allowed during this process. Seeds should be stacked properly, keeping different varieties separated and clearly labeled. Store them at least 50 cm away from walls and the floor to prevent moisture damage. Ventilation is important to manage heat and humidity. Natural ventilation is preferred, with windows opened early in the morning and closed late at night, avoiding foggy conditions. Mechanical ventilation can be used if necessary. Regular checks are essential. Inspect the warehouse frequently, especially after summer or winter, and test the moisture content and germination rate of the seeds. Install temperature and humidity sensors throughout the storage area and record measurements regularly. Maintaining a low-temperature, low-humidity environment is critical to prevent mold and maintain seed viability.

Imported bio-based Plasticizer

Plasticizer is widely used in industrial production of polymer materials, also known as plasticizer. Any substance added to a polymer material that increases the plasticity of the polymer is called a plasticizer. Plasticizer can improve the performance of polymer materials, reduce production costs and increase production benefits. [1] is a kind of important additives, chemical products as additives commonly used in plastics, concrete, mortar, the material such as cement, gypsum, cosmetic and detergent, especially in PVC plastic products, in order to increase the plasticity of the plastic and improve the strength of the plastic, you need to add phthalic acid ester, sometimes its content can be up to 50% of the products. Weakened the effect of plasticizer mainly resin molecular valence bond between time, increase the mobility of the resin molecular bonds, reducing resin molecular crystalline, increase the plasticity resin molecules, enhanced the flexibility, easy to machining, can legally used for industrial purposes, widely exists in food packaging, cosmetics, medical equipment, water and environment. Such as plastic wrap, food packaging, toys and so on.

Imported Bio-Based Plasticizer,Bio-Based Dammar Plasticizer,Bio-Based Pvc Additives,Fatty Alcohol Plasticizers

Xingbang High Molecular Materials Co., Ltd. , https://www.chemicaladditive.com