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KMID : 1007520040130020167
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Food Science and Biotechnology
2004 Volume.13 No. 2 p.167 ~ p.171
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Chemical Properties and Immunological Activities of Hot-water Extract from Leaves of Saltwort
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Lee, Chang-Ho
Oh, Se-Wook/Kim, In-Ho/Kim, Young-Eon/Hwang, Jong-Hyun/Yu, Kwang-Won
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Abstract
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In order to obtain basic data necessary for the utilization of saltwort (Salicornia herbacea) as a raw material in the function food, the chemical properties and immunological activities of solvent extracts from the freeze-dried leaves of saltwort were examined. A proximate analysis showed that leaves of saltwort consisted mainly of crude carbohydrate (45.3%), crude ash (38.1%) and crude protein (8.0%), and had a moisture content of 7.7%. They also contained a low amount of crude fat (0.9%). The carbohydrate was mostly composed of glucose and mannos (molar ratio；1.0：0.7), in addition to a small amount of galactose (molar ratio；1.0：0.3). A large quantity of chlorine (14.5 ㎎/g), and the important and magnesium, were also observed. An analysis of the component amino acid showed a relatively high ratio of the acidic amino acids, such as glutamic acid (18.3 ㎎/g) and aspartic acid (7.7 ㎎/g), and essential amino acids of leucine (5.5 ㎎/g) and isoleucine (4.3 ㎎/g), but a low tyrosine (0.2 ㎎/g) content. To examine the immunological activities, leaves of saltwort were fractionated into hexane-soluble, MeOH-soluble, and hot-water extract fractions. Among these fractions, only hot-water extract fraction showed the most potent intestinal immune system modulating activity through Peyer´s patch (1.7-fold of saline control) and macrophage stimulating activity (180% of saline control), whereas the other fractions exhibited little activity. In addition, the effects of an orally administered hot-water extract on the intestinal immune system modulation and macrophage stimulating activity were studied in mice. Hot-water extract stimulated the activation of macrophages at 1.0 g/㎏/day (155%). Bone marrow cells had significantly proliferated (1.6-fold) in analysis of the culture supernatant of Peyer´s patch cells from C3H/He dried leaves of saltwort contains some healthful chemical ingredients, and that it could provide beneficial immunological activities.
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KEYWORD
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