Buying a reliable and durable harvesting machine is a top priority for farmers, as it directly affects their productivity and profitability. Based on years of experience operating a combine harvester, I would like to share some practical suggestions that may help farmers make an informed decision when purchasing such equipment.
First, consider your usage needs carefully. If you plan to use the machine primarily for your own farm, especially in areas like Ningbo where fields are small, uneven, and difficult to navigate, a domestic small crawler self-propelled full-feed combine harvester with a cutting width of 1.6 meters would be more suitable. However, if your business involves cross-regional operations or professional services, efficiency and cost-effectiveness become key factors. In this case, a medium-track domestic self-propelled full-feed model or an imported semi-feed harvester with a cutting width of 1.8 to 2.0 meters is recommended. Domestic models typically pay for themselves within two years, while imported ones may take three to four years to break even.
Second, choose a reputable manufacturer. A combine harvester is a complex agricultural machine, so it's essential to purchase from a large-scale factory with strong technical support, proper certification, and a good track record. Always check for the “three licenses†— production license, promotion license, and product certification. Avoid brand-new models unless they have been tested and proven over time. It’s better to go with well-established models that have been mass-produced for at least two or three years, ensuring reliability and fewer breakdowns.
Third, pay attention to the supplier and delivery process. Combine harvesters are prone to mechanical issues due to their complex structure, including power systems, hydraulics, headers, and threshing units. When buying, select a supplier with a good reputation, a solid after-sales service network, and ready access to spare parts. Make sure the supplier provides formal invoices, product certifications, and a clear “three guarantees†policy. These documents are crucial for protecting your rights during maintenance and repairs.
Before finalizing the purchase, inspect the machine thoroughly. Check if all components are properly inspected, whether there are any leaks in the engine or chassis, if the steering and movement are smooth, and if the header, conveying, threshing, and cleaning mechanisms operate efficiently. Ensuring the machine is in good condition before delivery can save a lot of trouble down the line.
By following these tips, farmers can make smarter choices when buying a combine harvester, leading to better performance, longer lifespan, and greater return on investment.
Natural Food Colorants
what is natural food color?
Natural food coloring refers to pigments extracted or prepared from plants, animals, microorganisms or other natural sources for coloring food. These pigments are naturally produced due to biochemical reactions in living organisms and do not contain synthetic chemical components.
Natural food colors can be divided into the following categories according to their source:
1. Plant pigments: This is the most common source of natural food pigments, including pigments derived from a variety of fruits, vegetables, flowers, and plant roots. For example, red beets can provide red pigments, carrots can provide orange pigments, turmeric can provide yellow pigments, and blueberries and purple potatoes can provide purple and blue pigments.
2. Animal pigments: These pigments are rare and usually come from the tissues or excretions of certain animals. For example, cochineal is a red pigment derived from the cochineal insects that live on certain cacti.
3. Microbial pigments: Some microorganisms, such as monascus, can produce specific pigments, such as monascus red pigments.
4. Mineral pigments: Although less used, certain inorganic minerals can also be used as natural food pigments, such as titanium dioxide (white) and iron oxide (red, yellow and black). However, due to possible toxicity issues with some mineral pigments, their use is often severely restricted or banned.
Natural food colors are generally considered safer and healthier than synthetic colors due to their nature. However, their color stability, heat resistance, light resistance, and interaction with other food ingredients may not be as good as synthetic pigments, so their application in the food industry sometimes presents some challenges. At the same time, the extraction and processing of natural pigments can also affect their cost and sustainability. Nevertheless, as consumer concerns about food safety and health increase, the demand for natural food coloring is growing.
Natural Food Colorants,Natural Food Pigments, natural food color
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