Overview
Rapeseed cake is a byproduct obtained after the extraction of oil from rapeseeds, primarily used in the animal feed and agricultural sectors. It is valued for its high protein content and rich nutrient profile, making it an economical alternative to other protein sources. The cake is typically processed into pellets or powder for easier handling and application. In addition to its nutritional benefits, rapeseed cake is also utilized as an organic fertilizer due to its ability to improve soil structure and fertility. Its widespread availability and cost-effectiveness have made it a popular choice among farmers and feed manufacturers globally.
Physical and Chemical Properties
Rapeseed cake is characterized by its brownish-yellow color and granular or cake-like form. It has a density of approximately 0.5-0.7 g/cm³ and is partially soluble in water. The cake contains 30-40% protein, along with significant amounts of fiber, essential amino acids, and minerals such as phosphorus and potassium. One of the key chemical properties of rapeseed cake is its residual oil content, which can vary depending on the extraction method used. Cold-pressed cakes retain more oil, while solvent-extracted cakes have lower oil content. The presence of glucosinolates and other anti-nutritional factors may limit its use in certain animal feeds unless properly treated.
Main Applications
The primary application of rapeseed cake is as a protein-rich ingredient in animal feed, particularly for ruminants, poultry, and swine. Its high nutrient density supports growth and productivity in livestock. Additionally, it is often blended with other feed ingredients to balance nutritional profiles. Rapeseed cake is also widely used as an organic fertilizer and soil conditioner. Its slow-release nutrients enhance soil fertility and promote healthy plant growth. In some regions, it is employed in biogas production due to its organic matter content, contributing to renewable energy initiatives.
Safety and Storage
While rapeseed cake is generally non-toxic, it may contain residual oils and dust, which can pose handling challenges. Proper storage in a cool, dry environment is essential to prevent mold growth and maintain quality. Moisture control is critical, as high humidity can lead to spoilage and reduced efficacy. Workers handling rapeseed cake should use protective gear, such as masks and gloves, to avoid dust inhalation and skin irritation. Regular monitoring for contaminants, such as heavy metals or pesticides, is recommended to ensure safety for both feed and fertilizer applications.
B2B Procurement Guide
When procuring rapeseed cake, B2B buyers should prioritize quality metrics such as protein content, moisture levels, and absence of contaminants. Suppliers should provide certificates of analysis to verify these parameters. Bulk purchasing is common, with prices typically ranging from $200 to $400 per metric ton, depending on regional availability and quality. Buyers are advised to establish long-term relationships with reputable suppliers to ensure consistent quality and reliable delivery. Transportation and storage logistics should also be considered, as improper handling can degrade the product. Sampling and testing upon delivery are recommended to confirm compliance with specifications.
Related Manufacturers
- 主营：碳酸钙、高岭土、滑石粉、菜籽饼、负离子、金刚砂、贝壳粉
- 主营：麦饭石粉、滑石粉、沸石粉、菜籽饼、氧化钙、膨润土、白云石粉、橡胶粉、石英粉、硅微粉、碳酸钙、石墨、硅藻土、抗菌粉、氢氧化钙、消石灰、陶土、活性白土、金刚砂、木粉、磁粉、海泡石粉、二氧化硅、高岭土、负离子粉
- 主营：纯鸡粪、有机肥、大豆菌肥、菜籽饼、高标准农田专用肥、园林绿化专用肥、果树木肥料、发酵羊粪、发酵牛粪、牛粪有机肥、微生物菌肥、水产肥、水溶肥、蚯蚓粪、复合微生物、生物有机肥、鸡粪菌肥、豆粕肥、羊粪菌肥、干牛粪、中微量元素、干鸡粪块、发酵猪粪、饲料添加剂、矿源黄腐酸钾、硅钙镁钾矿源肥
- 主营：血粉 闪蒸血粉、血球蛋白粉、血浆蛋白粉、菜籽饼、血肽 水解血球蛋白粉、血红素蛋白粉、酶解鸡肝粉、大米蛋白粉、谷氨酸渣、菌体蛋白、赖氨酸渣、膨化羽毛粉、水解羽毛粉、多肽氨基酸原粉、葡萄糖酸钠母液、鸡血粉、闪蒸血粉、降鲜灵、玉米浆、酿酒酵母培养物、膨化大豆粉、肥料级肉粉、蛋壳粉、玉米糖渣、磷酸二氢铝、预糊化淀粉粘合剂
- 主营：鸡粪有机肥、羊粪有机肥、蚯蚓发酵有机肥、菜籽饼有机肥、微生物菌肥、发酵大豆有机肥、羊粪发酵有机肥、发酵鸡粪有机肥、鱼蛋白、生物有机菌肥、水溶肥、干鸡粪块、发酵羊粪、发酵牛粪、颗粒有机肥、鹌鹑粪、项目有机肥、鸡粪菌肥、大豆菌肥、鸡粪肥、腐熟羊粪、烘干鸡粪、果树蔬菜肥、土地整改有机肥
- 主营：蛋白胨、酪蛋白胨、大豆蛋白胨、菜籽饼粉价格、酵母浸粉、胰蛋白胨、酸水解酪蛋白胨、牛肉浸粉、酵母浸膏、牛肉浸膏、胰酪蛋白胨、玉米浆干粉、牛肉蛋白胨、马铃薯浸粉、酵母蛋白胨、鱼蛋白胨、麦芽浸粉、消化血清粉、月示蛋白胨、牛骨蛋白胨、豆粕提取物、琼脂粉、胃蛋白胨、多价胨、多聚蛋白胨、黄豆饼粉
- 主营：轻质碳酸钙、4A沸石粉、膨润土、菜籽饼、重晶石粉、配重铁粉 铁砂、氢氧化钙、红陶土 黄陶土、木粉、麦饭石粉、沸石粉、煅烧高岭土、水洗高岭土、滑石粉、负离子粉、硅藻土、白云石粉、玻璃鳞片、高铝耐火粉、蓝晶石粉
- 主营：铝矾土、线圈胶泥、感应电炉炉衬、菜籽饼、酸性炉衬材料、中性炉衬材料、捣打料、干振料、加热炉浇灌料、硅质打炉料、中间包可塑料、可塑快速修补料、石英砂、中频炉炉衬料、高岭土、透热炉打结料、橡胶颗粒、氢氧化钙、机制木炭、膨润土、绿泥白泥修补料、火山石板材、氧化钙、凹凸棒土粉、沸石粉沸石颗粒
- 主营：有机肥、有机菌肥、根果全营养、菜籽饼肥、矿源黄腐酸钾
- 主营：介质粉、污水处理磁粉、活性白土、菜籽饼、铁粉、重质碳酸钙、轻质碳酸钙、远红外粉、滑石粉、煅烧滑石粉、配重砂、贝壳粉、石英粉、玻璃粉、麦饭石粉、白云石粉、硅藻土、绿沸石、石膏粉、陶土、四氧化三铁、硅灰、矿渣粉、粉煤灰、膨润土、硫化铁
- 主营：生物有机肥、高标准农田、发酵干鸡粪有机肥、菜籽饼、羊粪、发酵羊粪、蚯蚓粪有机肥、发酵牛粪、鸡粪猪粪、微生物菌剂、复合微生物肥料、茶叶专用肥、发酵大豆肥、精制有机肥、海藻鱼蛋白、高氮肥、高钾肥、平衡肥、氨基酸原粉、大豆肥、微生物菌肥、滴灌冲施肥、有机液体水溶肥、豆粕菌肥、水溶肥
- 主营：磁粉、碳酸钙、沸石粉、菜籽饼、介质粉、凹凸棒土、硅藻土、红土黄土、膨润土、粉煤灰、石英砂、膨润土猫砂、矿渣粉、硅灰硅微粉、活性白土、萤石粉、高岭土、珍珠岩粉、陶土、铁砂、贝壳粉、远红外粉、煤粉、花生饼、木粉、钛白粉
- 主营：磁粉、铁粉、铁砂、菜籽饼钓鱼打窝用、硅藻土、膨润土、轻钙、重钙、氢氧化钙、氧化钙、煅烧滑石粉、膨润土颗粒、硅灰、活性白土、萤石粉、石英粉、高岭土、沸石粉、煅烧高岭土、莫来砂、珍珠岩粉、玻璃粉、贝壳粉、远红外粉、凹凸棒土
- 主营：铁砂、铁粉、重钙、菜籽饼多少钱、轻钙、氧化钙、白水泥、滑石粉、膨润土、红土黄土、硅灰、硅藻土、活性白土、萤石粉、石英粉、重晶石粉、高岭土、沸石粉、莫来砂、珍珠岩粉、膨润土猫砂、赤铁粉、粉煤灰、锰砂、石英砂
- 主营：铁砂铁粉、滑石粉、硅藻土、菜籽饼、赤铁红、红土黄土、沸石粉、木粉、重钙、轻钙、磁粉、膨润土、锰砂、硅灰、活性白土、石英粉、萤石粉、重晶石粉、高岭土、莫来砂、珍珠岩粉、粉煤灰、白水泥、远红外粉