2 10 月, 2025

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Palm Kernel Expeller: The Complete 2025 Guide to PKE Benefits & Uses

在动物营养领域，寻找经济高效、可持续且营养丰富的饲料原料始终是一项挑战。这正是 棕榈核榨油机 (PKE) comes in. As a significant by-product of the palm oil industry, PKE has carved out a crucial role as a valuable feed component for livestock worldwide, offering a unique blend of energy, fiber, and protein.

This guide explores everything you need to know about Palm Kernel Expeller, from its production process and nutritional value to its diverse applications and benefits. Whether you’re a farmer, nutritionist, or just curious about agricultural by-products, read on to understand why PKE is more than just a leftover.

什么是棕榈仁榨油机（PKE）？

Palm Kernel Expeller, often abbreviated as PKE, is a by-product derived from the processing of palm kernels. After the crude palm kernel oil (CPKO) has been extracted from the kernel of the oil palm fruit, the leftover fibrous material is dried and sold as PKE. This material is rich in protein, fiber, and energy, making it an excellent ingredient for compound animal feeds.

Unlike Palm Kernel Cake (PKC), which often involves solvent extraction, PKE is the result of mechanical extraction using a screw press (expeller). This process typically leaves a higher residual oil content in the final product, which contributes to its energy density.

The Production Process: From Palm Fruit to Feed

Understanding how 棕榈核榨油机 is made helps appreciate its value. The process is a multi-stage operation that starts with the palm fruit.

• 收割： 新鲜的 油棕果串 are harvested from the oil palm tree.
• Sterilization & Threshing: The bunches are sterilized with steam to halt enzymatic reactions and then threshed to separate the fruit from the bunch.
• 采油： The fruit pulp is pressed to extract 毛棕榈油 (CPO). The remaining nuts are cracked to release the 棕榈仁.
• Kernel Oil Extraction: The kernels are crushed and mechanically pressed in an expeller to extract crude 棕榈油.
• 最终产品： The solid residue left after the oil is extracted is the 棕榈核榨油机.然后将其干燥至安全的湿度水平，以便储存和运输。

棕榈仁压榨机的营养成分

The nutritional composition of PKE can vary based on the oil extraction efficiency and the amount of shell remaining. However, a typical analysis showcases its value as a feedstuff. It is particularly noted for its high fiber and moderate protein levels.

• 粗蛋白： 14-18%
• 粗纤维： 16-22%
• 粗脂肪/油： 5-10%
• 代谢能： 7.5 – 8.5 MJ/kg (for ruminants)

While it is not as protein-rich as soybean meal, its balanced profile makes it an ideal supplement. The high fiber content is especially beneficial for promoting healthy rumen function in cattle. For a detailed scientific breakdown, research from institutions like the 动物杂志 provides in-depth analysis of its components.

Primary Uses of Palm Kernel Expeller in Agriculture

独特的营养成分 棕榈核榨油机 makes it suitable for a range of livestock, though it is most widely used for ruminants.

PKE for Ruminant Animals (Cattle, Sheep, Goats)

Cattle, both dairy and beef, are the largest consumers of PKE. Its high fiber and moderate protein content make it an excellent supplemental feed, especially for grazing animals. It helps improve butterfat levels in dairy cows and provides a cost-effective energy source for beef cattle. Organizations like the FAO have extensive resources on by-products in animal feed.

PKE in Poultry and Swine Diets

使用 棕榈核榨油机 for monogastric animals like pigs and chickens is more challenging due to its high fiber content and gritty texture. However, with advanced feed technology, such as enzyme supplementation or fermentation, its digestibility can be improved, allowing it to be included in their diets at lower rates. Research is ongoing to unlock its full potential for these species.

Other Emerging Applications

Beyond animal feed, PKE is also being explored as a source of biomass for renewable energy production and as a component in organic fertilizers, further highlighting its role in a circular economy.

Key Benefits of Integrating PKE into Animal Feed

• 成本效益： PKE is often more affordable than traditional feed ingredients like corn, barley, or soybean meal, helping farmers reduce production costs without compromising quality.
• 可持续性： As a by-product, using PKE reduces waste from the palm oil industry. It promotes a more sustainable agricultural system by making full use of harvested resources. Sourcing from certified suppliers, as endorsed by the 可持续棕榈油圆桌会议（RSPO）, ensures it is produced responsibly.
• High Energy & Fiber: The residual oil provides a good source of energy, while the high fiber content aids digestion and promotes satiety, particularly in ruminants.

Potential Drawbacks and Quality Considerations

While the benefits are significant, there are factors to consider when purchasing 棕榈核榨油机. Quality can vary greatly between suppliers. High shell content can reduce its digestibility and energy value, making the product less effective. While high shell content is undesirable in feed, the separated 棕榈壳 is another valuable by-product, often used as biofuel. It’s crucial to source PKE from reputable suppliers who can provide a consistent and clean product.

Additionally, improper storage can lead to mold and mycotoxin contamination, which is dangerous for livestock. For more information, you can read our guide on best practices for storing animal feed to ensure maximum safety and longevity.

PKE Specifications: What to Look For

采购时 棕榈核榨油机, always request a certificate of analysis. Key parameters to check include:

• Moisture: Should be below 12% to prevent mold growth.
• 粗蛋白： Typically 14% or higher.
• Crude Fat: Look for a range of 5-10%.
• 壳牌内容： The lower, the better. High-quality PKE has minimal shell contamination. For a technical overview, academic resources like 科学导向 offer detailed specifications.

您值得信赖的棕榈产品供应商

Makmur Amanah Sejahtera 提供高品质的棕榈产品，如棕榈仁压榨机、棕榈仁壳、棕榈原油、棕榈仁油等。请通过 WhatsApp +6282140002198 与我们联系，或发送电子邮件至 admin@makmuramanah.co.id。

结论

Palm Kernel Expeller is far more than just a by-product; it is a cornerstone of sustainable and economical livestock farming. Its balanced nutritional profile, particularly for ruminants, provides farmers with a reliable and affordable alternative to conventional feeds. By understanding its benefits, applications, and quality specifications, you can effectively integrate this valuable ingredient into your feeding strategy.

As the global demand for sustainable agricultural solutions grows, the importance of by-products like 棕榈核榨油机 will only continue to rise, solidifying its place in feed rations around the world.