Abstract: Purpose: To determine and evaluate nutritional components of black cereal and oil paste made from black rice, black soybean and black sesame. Methods: A kind of paste was made from black rice, black soybean and black sesame through extruding, blending and grinding. Its nutritional components were also analyzed. Results: The contents of water, protein, fat, ash and insoluble dietary fibre in the paste were 4.92%, 24.81%, 18.84%, 2.84% and 2.43%, respectively. In addition, the amounts of vitamin B1, vitamin B2, vitamin E, calcium, sodium, potassium, magnesium, iron, zinc, manganese and copper in 100 g of paste sample were 98.65 μg, 96.89 μg, 6.98 mg, 207.14 mg, 86.62 mg, 702.03 mg, 119.13 mg, 9.04 mg, 2.09 mg, 1.66 mg and 0.588 mg, respectively. The contents of lead and arsenic in 1000 g of past sample were lower than 0.3 mg and 0.2 mg, respectively. The contents of essential amino acids (EAA) and non-essential amino acids (NEAA) per 100 g of protein were 8.94 g and 15.63 g, respectively and the content of total amino acids (TAA) was 24.57 g. The amino acid score (AAS), chemical score (CS) and essential amino acid index (EAAI) were 1.02, 0.65 and 78.77, respectively. Moreover, the EAA/TAA and EAA/NEAA were 36.39% and 57.20%, respectively. Conclusion: Black cereal and oil paste has balanced nutrition and reasonable formula.

Key words: black cereal and oil food, nutritional paste, nutritional composition, amino acid score (AAS)