Constituents Of Common Brown Red And Green Algae

Ascophyllumnodosum

Laminaria digitata

Alaria esculenta

Palmaria palmata

Porphyra yezoensis

Ulva
species

Type

Brown

Brown

Brown

Red

Red

Green

Water (%)

70-85

73-90

73-86

79-88

nd

78

Ash

15-25

21-35

14-32

15-30

7.8

13-22

Total carbohydrates

-

-

-

-

44.4

42-46

Alginic acid

15-30

20-45

21-42

0

0

0

Xylans

0

0

0

29-45

0

0

Laminaran

0-10

0-18

0-34

0

0

0

Mannitol

5-10

4-16

4-13

0

0

0

Fucoidan

4-10

2-4

nd

0

0

0

Floridoside

0

0

0

2-20

nd

0

Other carbohydrates

c. 10

1-2

1-2

nd

nd

nd

Protein

5-10

8-15

9-18

8-25

43.6

15-25

Fat

2-7

1-2

1-2

0.3-0.8

2.1

0.6-0.7

Tannins

2-10

c. 1

0.5-6.0

nd

nd

nd

Potassium

2-3

1.3-3.8

nd

7-9

2.4

o.7

Sodium

3-4

0.9-2.2

nd

2.0-2.5

0.6

3.3

Magnesium

0.5-0.9

0.5-0.8

nd

0.4-0.5

nd

nd

Iodine

0.01-0.1

0.3-1.1

0.05

0.01-0.1

nd

nd