マコンブの無機成分に関する研究(1)-部位と組織の違いによる無機成分の分布-

URI http://harp.lib.hiroshima-u.ac.jp/hju/metadata/5093
File
Title
マコンブの無機成分に関する研究(1)-部位と組織の違いによる無機成分の分布-
Title Alternative
Inorganic Elements in the Tangle Laminaria japonica Areschoug (1) -distribution differences according to the location and tissue-
Author
氏名 奥田 弘枝
ヨミ オクダ ヒロエ
別名 OKUDA Hiroe
Subject
マコンブ
無機成分
NDC
498.5
Abstract

Seaweeds are very rich in inoriganic and vitamins, this being one of the characteristics, in comparison to other vegetables in general. Although many analytical reports have involved the quantities of the inorganic constituents, little is known about their distribution in the tangle tissues and the effects of cooking on the changes in the constituents. The purpose of the present study is to investigate the softening mechanisms of the tangle and changes in the nutritive value during cooking. Fresh tangles Laminaria japonica Areschoug of the second year were used, and the distribution and changes in inorganic constituents in the tissues before and after cooking were observed by an energy dispersive X-ray microanalytical electron microscope. Results are summarized as follows:
1. Inorganic constituents of the tangle leaves were mainly C1, K, Na, Ca, Mg and P, and a trace of Fe, Zn and Cu.
2. The quantities of inorganic constituents were varied among the tangles from different districts.
3. Chloride ions were mostly distributed at the center part of the leaf; potassium at the leaf apex; and phosphorus, sulfur and calcium at the basal part of the leaf around the growth points.
4. Main constituents of the leaf cooked in water were potassium, chloride and sodium, and in the cell wall calcium and potassium.

Journal Title
広島女学院大学論集
Volume
39
Spage
193
Epage
213
Published Date
1989-12
Publisher
広島女学院大学
ISSN
03748057
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
hju