Method for extracting ricinine from castor bean meal

The proposed method addresses inefficiencies in ricinoleic acid extraction by using high-pressure high-temperature water extraction and solvent-based purification, achieving high yield and purity without solvent residues, suitable for industrialization and maintaining nutritional value.

CN119707802AInactive Publication Date: 2025-03-28上海源耀农牧科技有限公司
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Patent Information

Application Number
CN202411812079.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Current methods for extracting ricinoleic acid from ricin paste are inefficient, often leaving residual solvents, requiring lengthy processes, and compromising the nutritional value of the paste, while also being unsuitable for industrialization due to high residual toxins and low extraction rates.

Method used

A method involving continuous high-pressure high-temperature water extraction followed by solvent-based purification steps, including oil ether and chloroform extraction, and subsequent recrystallization to achieve high purity and yield of ricinoleic acid without solvent residues.

Benefits of technology

This method achieves high and efficient extraction of ricinoleic acid with no solvent residues, enabling industrial-scale production while preserving the nutritional value of the ricin paste.

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Abstract

The invention discloses a method for extracting ricinine in castor bean meal, which comprises the following steps: step 1, adding castor bean meal and water into an extraction tank according to a weight ratio of 1: (5-10), setting the temperature to be 100-120 DEG C and the pressure to be 0.1-0.5 Mpa, extracting for 10-15 minutes, and centrifuging to obtain a first centrifugate; 2, adding water with the same weight as that in the step 1 into the precipitate obtained after centrifugation in the step 1, setting the temperature to be 100-120 DEG C and the pressure to be 0.1-0.5 Mpa, extracting for 10-15 minutes, and centrifuging to obtain second centrifugate; and 3, combining the first centrifugate and the second centrifugate, and concentrating into paste to be purified. According to the extraction method disclosed by the invention, continuous twice high-pressure high-temperature water extraction is adopted, the extraction rate is high, rapidness and high efficiency are realized, no organic solvent is left, ricinine can be industrially extracted, and the nutritional value of castor bean meal is not influenced.
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