Castor is an annual or perennial herbaceous plant that is relatively adaptable to the environment and can be planted in a variety of soil qualities. The oil content of castor beans is between 45% and 60%, and it can be used to make oil after extraction and processing. Castor beans meal, the residue after castor seed oil extraction, also has a high utilization value, so where can castor bean cake meal be used?
1.Insecticidal effect.
Because castor cake contains ricin, its aqueous extract has a good insecticidal effect. The insecticidal active substances include ricin and toxic protein, the toxic protein is a contact killing effect, and ricinine is a comprehensive effect of contact killing and stomach toxicity, and has a certain food rejection effect. Experiments have shown that direct application of crushed castor cake meal can have a good control effect on underground pests such as root-knot nematodes and grubs.
2.Protein feed for livestock and poultry.
Castor seed cake is rich in protein, with a crude protein content of 33%-35%, which is 3 times that of grain crops, and a crude protein content of shelled and skimmed cake meal can be as high as 69%, which is a good protein**. Castor protein contains 60% globulin, 20% gluten, 16% albumin, and does not contain or contains a small amount of gliadin that is difficult for animals to absorb, so most of the castor protein can be digested and absorbed by animals. Therefore, the development of castor cake meal as livestock and poultry protein feed can make full use of the protein in it and increase the protein resources of the feed industry.
But castor beans contain a certain toxicity, so what effect does undetoxified castor cake have on animals?
Early international studies have shown that the level of ricin in the dietary diet of poultry chickens should not exceed 004%, if this value is exceeded, long-term consumption of animals will lead to stunted growth and development and even disease and death. The reason for this situation is that most of the poultry belong to monogastric animals, which have low toxicity to the toxins in castor cake, so a certain proportion of animals have diarrhea, emaciation and even death, and the allergens in it will cause fatal allergies in animals if they are not removed.
That is to say, although it contains some toxic components, if the toxic components in it are destroyed or separated, the promotion of castor cake meal in the field of feed has a positive role in promoting. Therefore, the industrial production of castor cake meal not only conforms to the national policy, but also promotes the development of science and technology, improves the comprehensive utilization of castor cake, improves the rational allocation of resources, and plays a role in the utilization of waste.