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Castor Beans Overview - Castor Beans _____________________________________________________________________________________

By Eveleen -

Castor bean also commonly known as hempseed, is the mature seeds of Euphorbiaceae Ricinus plants. Castor native to Africa, is a perennial herb. Now the world was planted everywhere, Brazilian production was the most. According to legend, Chinese castor cultivation is spread from India, due to most of China are in temperate regions, the accumulated temperature is not high enough, so in addition to the southern parts, the Chinese cultivated castor are annual cultivated crops. China is one of the main cultivation and production castor beans country in the world. Castor is a superior economic value of oil crops. Its oil content is generally about 50%, of which the castor beans oil content was up to 58% ~ 75%. Castor oil is non-drying oil contains large amounts of oleic acid, unsaturated fatty acids are small, belong to high grade lube, because of its strong stability, it often used as aircraft lubricating oil, transformer oil, etc.

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Castor oil is an important industrial raw material widely used in paints, coatings, cosmetic raw materials, plastics, synthetic fibers, synthetic leather and so on. Castor oil is an essential pharmaceutical, generally used for bowel cleansing prior to surgery and so on. Some varieties can be used for human consumption, such as sesame oil castor oil and sesame seeds castor oil in Sichuan, China. Castor rod can be used as papermaking raw materials. Castor bean meal is a good fertilizer.

Many countries use castor bean meal as fertilizer for green food production base. Castor bean meal containing toxic substances (including ricin, castor base, allergens, lectins, etc. as ricin for example, only a few of a milligram can cause human deaths). After detoxification treatment can be used as feed. Chinese castor cultivation area is extremely broad. In Liaoning, Jilin, Heilongjiang, Inner Mongolia, Shanxi, Hebei and other places have a piece of cultivation. In the South are much more sporadic cultivation, Guangdong, Guangxi, Jiangxi and other places, there are some wastelands planting perennial castor. China is one of the main countries of the world's planting castor and producing castor beans, the annual output is several million tons.

The major markets of castor trade were concentrated in the UK, France, Germany, Italy, USA, Japan and other countries. The world's largest exporting castor oil country is Brazil, annual exports are about 120,000 to 130,000 tons. Brazil's domestic is both producing castor beans and importing castor beans, the purpose of importing castor beans are extracting oil and then re-exporting castor oil. India also has castor oil exports, average yearly export volume of 40,000 ~ 50,000 tons to Russia CIS countries. Castor exporting countries have Thailand, Sudan, Tanzania, Uganda, Ecuador and so on. The major importing countries are Japan, Europe, USA. Castor beans are composed of the seed coat, caruncle, endosperm, cotyledon, embryo. Testa is approximately 17%~ 39% of total weight, divided into outer and inner testa. Hard testa, endothelium is soft parenchyma cells tissue. At one end of the slightly narrower seed has kidney shape caruncle. It is the akinete of Testa, are expanded from beds nearby the bead hole.

The chemical composition of castor beans is mainly due to the different varieties and different origin. Asia, Persia and other places produce red stems and green stems two kinds castor oil is containing about 42 percent oil, India. North Africa and other places produced stem leaf fruits are russet, oil content is about 50%. Northeast castor has red stems and white stems two kinds (which is divided into barbed and no thorns two kinds) and its chemical composition is: castor oil 40%-50%; carbohydrate and crude fiber 20%-30%; crude protein 15%-18%; ash 2%-3%.

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Castor beans  

Castor Beans. Still working on the photos from last summer -. these are macros from a castor bean plant. For such a huge plant, the flowers...

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