Table 2.
Amino acid composition of lupin protein isolates prepared by different processing techniques. MD-F = Defatted Murringo direct freeze dried, JD-F = Defatted Jurien direct freeze dried, M-F = Full fat Murringo direct freeze dried, J-F = Full fat Jurien direct freeze dried, MD-PF = Defatted Murringo pasteurized and freeze dried, JD-PF = Defatted Jurien pasteurized and freeze dried, M-PF = Full fat Murringo pasteurized and freeze dried, J-PF = Full fat Jurien pasteurized and freeze dried, MD-S = Defatted Murringo spray dried, JD-S = Defatted Jurien spray dried, M-S = Full fat Murringo spray dried, J-S = Full fat Jurien spray dried.
| Amino Acids | L. albus | L. angustifolius | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spray Dried | Freeze Dried | Spray Dried | Freeze Dried | |||||||||
| MD-S | M-S | MD-F | M-F | MD-PF | M-PF | JD-S | J-S | JD-F | J-F | JD-PF | J-PF | |
| Aspartic acid | 10.90 | 11.47 | 11.60 | 11.58 | 10.99 | 11.02 | 11.18 | 11.79 | 12.33 | 10.99 | 11.88 | 10.94 |
| Arginine | 10.80 | 10.17 | 10.67 | 10.73 | 10.64 | 10.95 | 12.35 | 11.24 | 13.01 | 11.42 | 11.72 | 11.97 |
| Serine | 5.25 | 4.95 | 5.48 | 5.48 | 4.98 | 5.01 | 5.03 | 4.71 | 5.47 | 4.98 | 4.92 | 4.95 |
| Glutamic acid | 23.41 | 25.14 | 25.30 | 25.10 | 25.24 | 24.44 | 23.86 | 25.51 | 27.16 | 24.10 | 25.64 | 23.70 |
| Proline | 4.30 | 3.77 | 4.41 | 4.35 | 3.97 | 4.03 | 4.29 | 3.70 | 4.57 | 4.01 | 3.78 | 3.98 |
| Glycine | 3.86 | 2.97 | 3.57 | 3.62 | 2.96 | 2.74 | 4.03 | 3.17 | 3.86 | 2.99 | 2.73 | 3.27 |
| Alanine | 3.01 | 2.85 | 2.78 | 2.80 | 2.81 | 2.62 | 2.96 | 2.99 | 2.24 | 2.82 | 2.49 | 3.06 |
| Total non-essential | 67.62 | 68.41 | 69.70 | 69.60 | 68.22 | 67.62 | 68.60 | 68.77 | 72.56 | 67.41 | 68.61 | 67.16 |
| Cysteine | 0.97 | 1.36 | 1.04 | 1.05 | 1.18 | 1.22 | 0.86 | 0.94 | 0.84 | 1.09 | 0.89 | 0.93 |
| Methionine * | 0.53 | 0.37 | 0.56 | 0.57 | 0.33 | 0.36 | 0.38 | 0.40 | 0.30 | 0.34 | 0.27 | 0.32 |
| Total sulphur containing | 1.50 | 1.73 | 0.60 | 0.62 | 1.51 | 1.59 | 1.24 | 1.34 | 0.34 | 1.43 | 1.16 | 1.25 |
| Tryptophan * | 0.54 | 0.41 | 0.59 | 0.60 | 0.45 | 0.40 | 0.62 | 0.57 | 0.48 | 0.47 | 0.33 | 0.55 |
| Tyrosine | 5.11 | 5.73 | 4.85 | 4.90 | 5.47 | 5.59 | 4.03 | 4.71 | 3.09 | 5.02 | 4.55 | 4.35 |
| Phenylalanine * | 4.28 | 4.47 | 3.76 | 3.85 | 4.50 | 4.61 | 4.45 | 4.68 | 3.21 | 4.76 | 4.72 | 4.93 |
| Total aromatic | 9.92 | 10.61 | 9.20 | 9.35 | 10.42 | 10.60 | 9.11 | 9.96 | 6.78 | 10.24 | 9.61 | 9.83 |
| Threonine * | 3.39 | 3.32 | 3.13 | 3.18 | 3.26 | 3.36 | 3.02 | 2.97 | 2.20 | 3.28 | 3.07 | 3.19 |
| Lysine * | 4.46 | 4.30 | 3.75 | 3.84 | 4.27 | 4.34 | 4.32 | 4.17 | 3.03 | 4.41 | 4.31 | 4.49 |
| Valine * | 4.18 | 3.67 | 3.87 | 3.79 | 3.65 | 3.74 | 3.93 | 3.49 | 3.76 | 3.74 | 3.60 | 3.75 |
| Histidine * | 1.99 | 1.90 | 1.80 | 1.89 | 1.90 | 1.91 | 2.31 | 2.20 | 1.64 | 2.06 | 2.20 | 2.24 |
| Isoleucine * | 5.19 | 5.65 | 4.75 | 4.69 | 5.75 | 5.84 | 5.05 | 5.59 | 4.91 | 5.84 | 5.69 | 5.84 |
| Leucine * | 7.83 | 7.48 | 8.10 | 7.99 | 7.67 | 7.82 | 7.31 | 7.15 | 7.89 | 7.69 | 7.19 | 7.53 |
| Total Basic | 17.25 | 16.38 | 16.22 | 16.46 | 16.80 | 17.20 | 18.98 | 17.62 | 17.68 | 17.89 | 18.24 | 18.70 |
| Total essential | 32.38 | 31.59 | 30.30 | 30.40 | 31.78 | 32.38 | 31.40 | 31.23 | 27.44 | 32.59 | 31.39 | 32.84 |
| Total polar | 66.29 | 68.34 | 67.61 | 67.75 | 67.92 | 67.84 | 66.95 | 68.25 | 68.77 | 67.35 | 69.20 | 66.77 |
| Total non-polar | 33.71 | 31.66 | 32.39 | 32.25 | 32.08 | 32.16 | 33.05 | 31.75 | 31.23 | 32.65 | 30.80 | 33.23 |
Aspartic acid + asparagine; Glutamic acid + glutamine; * Essential.