A processing technology for spray-dried blood meal
Through spray drying and temperature-varying pressure differential puffing treatment, combined with coating technology, the problem of destruction and oxidation of active substances in traditional blood powder treatment is solved, and the digestibility and storage time of blood powder are improved.
CN119184207BActive Publication Date: 2025-03-21SHANDONG SHANGBO BIOTECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202411688194.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2044-11-25
AI Technical Summary
Technical Problem
In traditional blood powder treatment methods, high temperatures will destroy active substances, resulting in a decrease in nutritional value, and are prone to oxidation to reduce quality and poor digestibility.
Method used
The fresh blood is treated into blood powder particles by spray drying process, and spray-dried under low temperature conditions, then soaked in the permeate and subjected to variable temperature pressure differential puffing treatment, and finally coated to protect the blood powder.
Benefits of technology
It effectively reduces the destruction and oxidation of nutrients in the blood, improves the digestibility of blood meal and the retention of nutrients, and extends the storage time of blood meal.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application relates to the technical field of feed additives, and specifically discloses a process for spray-dried blood meal. A process for spray-dried blood meal comprises the following steps: (1) pretreatment: filtering fresh blood to remove residues for standby use; (2) adjusting pH: using sodium citrate buffer solution to adjust the pH value to 6.8-7.2; (3) spray drying: using a high-precision centrifugal pump to transport the adjusted blood into a spray tower for spray drying; (4) permeate treatment: dispersing the powder formed by spray drying in the permeate, treating at 25-30°C for 3-3.5h, centrifuging, drying at 30-35°C, and reducing the moisture content to 40-60%, and then performing variable temperature pressure difference puffing treatment; (5) coating: coating the powder formed by spray drying through a fluidized bed, and packaging and storage; In addition, the preparation method of the present application has the advantages of increasing the nutrient content and digestibility of the product blood meal.
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