Golden vine loofah is not typically planted during spring and fall seasons. In early spring, from March to April, it's recommended to sow seeds, use a seedling nursery, or cover the seedbed with plastic film to help raise the temperature before transplanting. By mid-April, mulch can be used in field cultivation, or planting can begin in Daejeon from late April to early May. For autumn planting, sowing should take place between June and July, following the same method as zucchini. Before planting, apply 2 to 3 cubic meters of composted farmyard manure, along with balanced nitrogen, phosphorus, and potassium fertilizers. Plant spacing should be 40 cm between plants, with small rows spaced 50–60 cm apart and large rows 1 meter apart, resulting in 1,500 to 2,000 plants per acre. After planting, ensure the soil is well-watered to promote early seedling growth. During the seedling stage, water less frequently, while increasing weeding and cultivating to raise soil temperature and encourage root development. When the plant has 9 to 12 leaves, it enters the flowering stage. At the early fruiting stage, apply 7.5 to 10 kg of urea per acre. During the fruiting period, apply potassium fertilizer or compound fertilizer as needed. After the first harvest, apply 5 to 7.5 kg of urea per acre to prevent early yield decline. For tender loofah harvesting, wait about 10 days after flowering, when the fruit is fully set. Harvest it like zucchini, but avoid stirring it. Stop harvesting old melons when the skin no longer moves under your fingers. The first melon should be harvested promptly, as leaving it on the plant can negatively affect the development of subsequent fruits. Ripe melons can be sold after harvesting. If you're not selling immediately, spread lime powder evenly on the ground, stack them 4 to 5 layers high, and store them in a cool, dry, and well-ventilated area for over five months. Golden vine loofah is known for its strong resistance to pests and diseases, but it’s still important to manage potential issues. First, avoid planting in land previously used for melon crops. Second, disinfect the seeds: soak them for one hour in a melon-specific herbicide or a 100-fold formalin solution, then rinse thoroughly. Soak for 3 to 4 hours, dry, and keep at 28°C to 32°C for 12 hours until the white sprout appears. In summer, high temperatures can make the crop susceptible to viral diseases and anthrax. To prevent these, control aphids, remove infected plants immediately, and spray with virus-fighting agents like Virus A or Zhiyingling II. Additionally, treat for fruit flies by spraying every 5 to 7 days for 3 to 4 times. Taking these steps ensures healthy and productive growth throughout the growing season.

API

what is API?

High-purity plant monomer refers to one or more single chemical components with specific biological activity or pharmacological effects extracted from plants, and its purity is usually high, meaning that the content of the component in the extract reaches a certain percentage, and the content of other impurities or irrelevant components is low.

These plant monomers are usually secondary metabolites of plants, such as flavonoids (flavonoids), alkaloids (alkaloids), terpenoids (terpenoids), phenolics (phenolics), etc., which play a variety of physiological functions in plants such as defense, signal transduction, and antioxidant. Due to their pharmacological activity, high-purity plant monomers are often used in pharmaceuticals, health products, cosmetics and other biotechnology products.

For example, Naringenin is a high-purity plant monomer extracted from citrus plants with antioxidant and anti-inflammatory activities; Corosolic acid is a high-purity active monomer extracted from loquat leaves, which is considered to be effective in treating type 2 diabetes and obesity.

Extraction and preparation of high-purity plant monomers usually require a complex separation and purification process, including extraction, column chromatography, crystallization, recrystallization and other steps to ensure the purity and activity of the final product. These processes may be required by specialized biotechnology companies.

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