Amino acid composition of quinoa compared with wheat, soybean, skimmed milk, and amino acid requirements of humans.

 

Content (g/100g protein)

Amino acid

Hydroponic quinoa

Field quinoa seeds

Wheat

Soybeanz

Skimmed milk

Amino acid requirements

leaves

seeds

Isoleucine

3.2

3.9

5.2

3.8

4.9

6.3

4.0

Leucine

5.6

6.4

6.7

6.8

7.6

9.7

6.7

Lysine

3.5

5.9

6.2

2.9

6.4

7.7

5.0

Phenylalanine

3.9

4.1

3.8

4.5

4.9

4.9

3.2

Arginine

4.0

9.4

7.9

4.8

7.2

3.7

2.0

Histidine

1.2

3.0

2.7

2.2

2.5

2.6

1.7

Alanine

3.9

4.0

4.4

3.8

4.3

4.0

-.-

Aspartic acid

8.0

9.0

8.1

5.3

12.0

8.3

-.-

Glutamic acid

14.0

15.0

14.0

27.0

18.0

23.0

-.-

Glycine

4.3

5.3

5.7

4.0

4.2

2.2

-.-

Proline

3.6

3.5

4.0

10.0

5.5

11.0

-.-

Serine

3.6

4.4

4.6

5.0

5.6

6.0

-.-

Tyrosine

2.6

3.2

3.1

3.1

3.5

5.0

3.2

Phenylalanine + Tyrosine

6.5

7.3

6.9

7.6

8.4

9.9

6.4

Cysteine

0.6

1.0

1.4

2.3

1.5

0.9

1.3

Methionine

0.8

1.0

1.4

1.7

1.4

2.5

1.9

Threonine

3.5

3.5

4.1

3.1

4.2

4.6

3.4

Tryptophan

1.6

1.1

1.2

1.1

1.3

1.4

1.1

Valine

4.0

4.5

4.6

4.7

5.0

6.9

4.6

Cysteine + Methionine

1.4

2.0

2.8

4.0

2.9

3.4

3.2

   
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