Protein and Amino Acid Composition of Chinese and North American Wild Rice

Chinese wild rice (Zizania latifolia Griseb.) Turcz from five lakes in Eastern China and North American wild rice (Zizania aquatica) from the United States of America and Canada were analysed for protein content and amino acid composition. Protein (N × 6.25) content was respectively 13.22, 13.02, 13.24 g/100 g in Chinese. American and Canadian wild rice. The amino acid compositions of the wild rice varieties from the three countries were quite similar with the exception of methionine which was present in lower amounts in Chinese wild rice. Threonine and lysine were the first and second limiting amino acids in all samples of wild rice.