TABLE 1.

Compositions of E. gracilis Z (Based on Kitaoka and Hosoya, 1977).

		GL**	GD**	Autotrophic condition
General composition of E. gracilis Z*	Clude proteins	54.81	31.75	58.71
	True proteins	45.97	25.53	50.94
	Clude fats	15.19	8.71	15.5
	Ashes	4.96	2.13	6.8
	Paramylon	17.6	53.77	15.97
	Residues	7.44	3.64	3.02
	Water	3.49	2.54	6.81
Composition of essential amino acids† and amino acid values	Isoleucine	3.3	3.3	3.5
	Leucine	6.5	6.5	7.3
	Lysine	5.9	5.8	5.6
	Sulfur-containing amino acids	4.4	4.4	3.2
	Aromatic amino acids	7.2	7.2	7.6
	Threonine	4.1	4.4	4.3
	Tryptophan	1	1	1.1
	Valine	4.7	5.3	5
	Amino acid value	83	83	88
Composittions of vitamins in E. gracilis (mg/100 g and ‡ug/100 g)	Vitamin B1 ‡a	27.9	25.3	1
	Vitamin B2	5.6	4.3	4.5
	Vitamin B6	1.07
	Vitamin B12 ‡a	10.1	30.5	36.6
	Nicotinic acid and Nicotinamide	37	41.4	28.3
	Biotin‡	79	88	14
	Pantothenic acid	3.4	2.9	3.6
	p-aminobenzoic acid			63
	Ascorbic acid	425	61	345
	Carotene	174	9.4	10.5
	Vitamin E	155	31
	Vitamin K1		0.5

*Freeze-dried sample, Except for water, values indicate parcentage of compositions per dry weight. **GL: Wild strain cultured under light condition, GD: Wild strain cultured under dark condition. ^†Grams of amino acids per 16 g of nitrogen. ^aVitamin is added in the culture medium. ‡ug/100g.