Ricinus communis can be used as raw material for papermaking. Castor seed cake is a good fertilizer. Many countries use castor cake as fertilizer for green food production base. Castor seed cake contains toxic substances (including ricin, ricinine, allergen, hemagglutinin, etc. Take ricin as an example, only a few milligrams can kill people. So it must be detoxified to make feed.
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Production and marketing situation
Castor is widely cultivated in China, including Liaoning, Jilin, Heilongjiang, Inner Mongolia, Shanxi, Hebei and other places. Most of them are planted sporadically in the south, and there are perennial castor beans in vacant wasteland in Guangdong, Guangxi and Jiangxi. China is one of the major countries in the world for planting castor and producing castor seeds, with an annual output of tens of thousands of tons.
The main markets of castor seed trade are concentrated in Britain, France, Germany, Italy, the United States, Japan and other countries. Brazil is the country that exports the most castor oil in the world, with an annual export volume of about 654.38+200,000 ~ 654.38+300,000 tons. Brazil produces castor seeds and imports castor seeds. The purpose of importing castor seeds is to extract oil and then export castor oil. India also exports castor oil.
The average annual export volume is 40,000-50,000 tons, which is supplied to Russian CIS countries. Castor seed exporting countries include Thailand, Sudan, Tanzania, Uganda and Ecuador. The main importing countries are Japan, Europe and the United States. In the past, China exported more castor seeds and castor oil. But with the growth of domestic demand.
Baidu encyclopedia-castor seed