CHEMICAL COMPOSITION OF LOBSTERS.

The nutritive value of a fishery product is of considerable interest

to the consumer. Some years ago, Prof. W. O. Atwater, of Middletown,

Connecticut, made a series of careful analyses of the composition of

the flesh of three lobsters from the coasts of Maine and

Massachusetts, and the figures given below represent the results:

Per cent.

---------

Proportions of edible portion and shell:

Total edible portion 39.77

Shell 57.47

Loss in cleaning 2.76

Proportions of water and dry substance

in edible portion:

Water 82.73

Dry substance 17.27

Chemical analysis calculated on dry substance:

Nitrogen 12.54

Albuminoids (nitrogen x 6.25) 78.37

Fat 11.43

Crude ash 10.06

Phosphorus (calculated as P2 O6) 2.24

Sulfur (calculated as SO3) 2.47

Chlorine 3.46

Chemical analysis calculated on

fresh substance in flesh:

Water 82.73

Nitrogen 2.17

Albuminoids (nitrogen x 6.25) 13.57

Fat 1.97

Crude ash 1.74

Phosphorus (calculated as P2 06) .39

Sulphur (calculated as SO3) .43

Chlorine .59

Nutritive value of flesh of lobsters

compared with beef as a standard and

reckoned at 100. 61.97

The Lobster Fishery of Maine Bulletin of the United States Fish Commission, Vol. 19, Pages 241-265, 1899 · 第 18 / 26 题