우령랭이의 각조직별 hypotaurine의 분포 및 계절변동 = Distribution and Seasonal Variation of Hypotaurine in the Ascidian(H짜'1C!J11thia roretzl) Tissues

다국어 초록 (Multilingual Abstract)

Hypotaurine, a precursor of taurine, was found in tissues of the ascidian Ha？껴f1lthia roretzi
in Korea. Distribution in tissues, seasonal variation, correlation of taurine, and contribution of
hypotaurine nitrogen to extractive nitrogen were investigated bimonthly in the ascidian. The
contents of hypotaurine in the extracts of ascidian tissues were 19.1-139.4mg/100g(average
59.7mg) and a marked seasonal variation was found in the ascidian tissues. The highest value
of hypotaurine appeared in April specimens and the lowest value appeared in August ones for
a year. The highest value of hypotaurine appeared in the liver extract and the lowest value
appeared in the gill extract for a year. The amount of hypotaurine was 2.9-20.7%(average 8.7%)
of taurine in the extracts. The relationship between the hypotaurine content(X) and taurine
content(Y) of ascidian was shown as follows; Y=3.9708X+446.1372(r=O.5592). The content of
hypotaurine nitrogen was 2.4-17.8m망100g(average 7.7mg) and the contribution of hypotaurine
nitrogen to extractive nitrogen in the ascidian tissues was 1.1-7.0%(average 3.1%). The relationship
between the sampling season and the hypotaurine contents, and the ascidian tissues
and the hypotaurine contents were highly significant1y different(p<O.01).