Sorghum amino acids

In microsomes from Sinapis alba L.,33,34 Tropaeolum majus L.,35,36 and Carica papaya L.,37 the aromatic amino acids (tyrosine and phenylalanine) have been shown to be converted to the corresponding oximes by cytochrome P450-dependent monooxygenases. The conversion of tyrosine to the corresponding oxime in microsomes from S. alba was approximately 1000 fold lower than in microsomes from the cyanogenic sorghum.33 This made a biochemical approach for the isolation... 

RG Elkin, JE Griffith. Hydrolysate preparation for analysis of amino acids in sorghum grains effect of oxidative pretreatment. J Assoc Off Anal Chem 68 1117-1121, 1985. 

YH Tuan, RD Phillips. Optimized determination of cystine/cysteine and acid-stable amino acids from a single hydrolysate of casein- and sorghum-based diet and digesta samples. J Agric Food Chem 45 3535-3540, 1997. 

Fig. 4. Dendrogram of Q, C4, and CAM-PEPCase sequences. Amino acid sequences were deduced from either genomic or cDNA sequences. An, Anacystis nidulans Cg, Corynebaclerium glutamicus Ec, Escherichia coli Nt, Nicotiana tabacum, Q-form Mcl, Mesembryan-themum crystattinum, CAM-form Mc2, Mesembryanthemum crystal-linum, C3-form Sv, Sorghum vulgaris, C4-form Zm, Zea mays, C4-form. For references see the text.

Malleshi, N. G. and Klopfenstein, C. F. (1998a). Nutrient composition and amino acid contents of malted sorghum, pearl millet and finger millet and their milling fractions. J. Food Sci. Technol. 35,247-249. 

Mitaru, B.N., Reichert, R.D. and Blair, R. (1985) Protein and amino acid digestibilities for chickens of reconstituted and boiled sorghum grains varying in tannin contents. Poultry Science 64, 101-106. 

The amino acid compositions of the alpha-amylase from human saliva, hog pancreas, Bacillus suhtilfs, B. stearothermo-philus, Aspergillus oryzae, and malted sorghum have been determined and are shown in Table III. The results show that alpha-amylases from these different sources differ widely in structure. In particular, it is to be noted that cystine and cysteine were not found in the alpha-amylase from B. subtilis. The sequence of amino acids or the three-dimensional structure of any one alpha-amylase is not yet known. The enzyme from A. oryzae differs from the others further, because it is a glycoprotein containing a small proportion of carbo-hydrate. ... 

The amino acid compositions of the beta-amylase from sweet potato, soya bean, wheat, and malted sorghum have been determined, and are shown in Table XIII. These results may suggest that the beta-amylase from these different sources differs in structure. This is, perhaps, not surprising, but it should be noted that the sorghum amylase contained 9% of pentose, and the important, sulfiir-containing amino acid cysteine was not reported and the soya-bean enzyme still contained traces of aipba-amylase and phosphatase. The sequence of amino acids, or the three-dimensional structure of any... 

TABLE 2.4 AAS and PDCAAS values for sorghum calculated using the 2002 WHO/FAO/UNU Expert Consultation recommended scoring patterns for indispensable amino acids"... 

Sorghum protein also appears to have low levels of the indispensable amino acids threonine and tr) tophan and high levels of leucine (reviewed by Klopfenstein and Hoseney, 1995). However, as shown in Table 2.4, contrary to earlier suggestions (Klopfenstein and Hoseney,... 

MacLean, W. C., Jr., Lopez, de Romana, G., Placko, R. P., and Graham, G. C. (1981). Protein quality and digestibility of sorghum in preschool children balance studies and plasma free amino acids. /. Nutr. Ill, 128-136. 

Nicol, B. M. and Phillips, P. G. (1978). The utilization of proteins and amino acids in diets based on cassava Manihot utilissima), rice sorghum Sorghum sativa) by young Nigerian men of low income. Br. J. Nutr. 39, 271-286. 

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