Black rice extract is a water-soluble natural pigment obtained by extracting black rice as raw material through a certain process, which belongs to the anthocyanin class of compounds, mainly composed of anthocyanins, anthocyanosides (such as loss of chrysin-3-glucoside). The following is a detailed introduction to black rice extract:
1. Origin and distribution
Alias: Black rice is also known as black millet, Japonica grain slaves, black pearl, black glutinous, moon rice and so on.
Origin: Mainly produced in the southern slopes of the Qin ling Mountains, the northern bank of the Han River, other areas due to climate and soil conditions are not suitable, so black rice is relatively rare and precious.
2.Chemical composition
Main components: anthocyanins (Anthocyanidins), anthocyanin (Anthocyanin). Among them, the content of anthocyanins and anthocyanins may vary due to the extraction process and raw material differences, for example, some product specifications of anthocyanin content of 10-30%, anthocyanin content of up to 98%.
Other ingredients: black rice extract is also rich in protein, lipids, amino acids and phosphorus, iron, calcium and other minerals.
3. Physical properties
Appearance: Black rice extract is usually purple-red fine powder.
Mesh: 100% over 80 mesh, indicating the fineness of its particles.
4. Functions and Uses
Medicinal value: Chinese medicine believes that black rice has significant medicinal value, with nourishing yin and tonifying the kidney, strengthening the spleen and warming the liver, brightening the eyes and activating the blood, black hair and black beard, and prolonging the life of the efficacy. Black rice extract can be used as medicine and food, and is particularly effective in treating dizziness, anemia, grey hair, lumbar and knee soreness, night blindness, tinnitus and other symptoms.
Nutritional value: Black rice extract is rich in a variety of nutrients, with antioxidant, anti-inflammatory, hypolipidemic and tumor inhibition and other physiological functions. At the same time, as a safer natural pigment, anthocyanin shows a broad application prospect in the food industry.
Health care function: black rice extract can be made into food additives, such as sweeteners, natural pigments, nutrient-fortified liquid, etc., used to enhance the nutritional value and organoleptic quality of food.
5. Precautions for use
Preservation: Black rice extract should be sealed, protected from light and kept in a cool and dry place to ensure its quality and stability.
Shelf life: In compliance with storage requirements, the shelf life of black rice extract is usually 2 years.
Contraindication: Uncooked black rice should not be consumed by children or the elderly with weak spleen and stomach to avoid acute gastroenteritis. At the same time, people with weak digestive ability after illness should not rush to consume black rice, and can choose other more easily digestible food for nourishment.
In summary, black rice extract is a natural extract with rich nutrients and a variety of health care functions, which has a wide range of application prospects in food, medicine and other fields. However, attention needs to be paid to its preservation methods and consumption contraindications to ensure its safety and effectiveness.