著者

光崎 龍子 坂口 和子 光崎 研一 高木 敬彦 森 真弓 鈴木 啓子

出版者

日本調理科学会

雑誌

日本調理科学会誌 = Journal of cookery science of Japan (ISSN:13411535)

巻号頁・発行日

vol.32, no.4, pp.330-333, 1999-11-20

参考文献数

11

被引用文献数

1

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ドクダミ茶加工の採取時期としては,一般に花のような白い総ほうが終わる頃が適していると言われている。そこで,ドクダミの成長期を「萌芽期」,「結実期」,「本葉期」と名付け,この3期と,結実期の「葉部」,「花部」の2種類の無機成分含有量を分析した。さらに,採取時期の意義を,相関分析,主成分分析法により解析を試みた。1.ドクダミの無機成分は,カリウムがもっとも多く,カルシウム,マグネシウム,鉄,マンガン,亜鉛は成長とともに増加し、銅は複相単為生殖後の花部に多い。2.カリウムとカルシウムは6:1,マンガンとマグネシウムは80:1ほどの比率で増加し,カルシウム・カリウムと銅では反比例する関係があり,花部,本葉期に認められる。3.主成分分析では第1主成分に,カルシウム,マグネシウム,カリウム,マンガンと銅が抽出され、ドクダミの無機成分を構成する主な成分と複相単為性生殖により増加する成分と考えられ,第2主成分の鉄,亜鉛は複相単為生殖に深く関与する成分と考えられる。4.成長期別の主成分分析法では,2次元布置図から花部の特異性が推測ができる。5.以上のことから,経験的にいわれているドクダミ採取時期は総ほうの終わる頃がよいとされるが、3成長期と花部、葉部に分けることにより明確にできた。ゆえに,昨今の食生活に派生する味覚異常や高齢者の無機成分摂取不足などの改善には,手軽に日常的な飲用が望ましい薬用植物と考えられる。

著者

桐生 崇 光崎 龍子

出版者

麻布大学

雑誌

麻布大学雑誌 (ISSN:13465880)

巻号頁・発行日

vol.7, pp.49-59, 2003

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High economic growth in Japan has affected social structure and local populations. After urban concentration of the population, residential areas developed in suburbs existing towns and cities surrounding the big cities. Population movement is a phenomenon that constructs new social relationships in combination with existing relationships and it is necessary to understand this phenomenon on the basis of an aggregate of individually occurring phenomena. Sagamihara city, Kanagawa Prefecture, is located 30-40km from Tokyo, and has developed as a satellite town. This city is suitable for development, but geographically it has a long axis from north to south, and the transportation connecting Tokyo has clustered on one side. We examined the social local characteristic through human relationships as a measure of the problems related to residential life. The following conclusions were drawn: 1. Population growth in Sagamihara was related to transportation and high economic growth. Because of changes to the social structure, the population trend is increasing, and social increase is a great contribution to this trend. 2. As to the population structure, the population of Sagamihara was small in 1965, but it had doubled by 1975, when it showed the star shape of an urbanized population structure. Now, it is showing a change to the gourd shape, suggesting population decrease. 3. Future municipal policies in Sagamihara should take this aging into consideration.

著者

光崎 龍子 坂口 和子 光崎 研一 高木 敬彦 森 真弓 鈴木 啓子

出版者

The Japan Society of Cookery Science

雑誌

日本調理科学会誌 (ISSN:13411535)

巻号頁・発行日

vol.32, no.4, pp.330-333, 1999

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The appropriate picking time for dokudami (Huttuynia cordata) tea is generally considered to be at the termination of the flower-like white involucre. Therefore, we classified the growth period of dokudami into the sprouting, seed setting, and true leaf stages, analyzed the contents of inorganic components at these stages, and analyzed contents of inorganic components in the leaves and flowers in the seed setting stage. In addition, the importance of the tea picking time was evaluated by a correlation analysis and principle component analysis.<BR>Among the inorganic components of dokudam i, the content of potassium was the highest, and the contens of calcium, magnesium, iron, manganese and zinc increased with growth. The content of copper was high in the flowers after diplophase parthenogenesis.<BR>Inorganic components increased at a potassium: calciu m ratio of about 6: 1 and at a manganese: magnesium ratio of about 80: 1. The calcium: potassium ratio changed inversely to the copper content that was observed in the flowers and in the true leaf stage.<BR>A principle component analysis revealed calcium, magnesium, potassium, manganese, and copper as the principle components.<BR>These appeared to be the principle inorganic components of dokudami and to increase due to diplophase parthenogenesis. A principle component analysis a ccording to the growth stage showed that the specificity of flowers could be estimated from two-dimensional scatter diagrams. The appropriate picking time for dokudami tea is empirically considered to be at the termination of the involucre, and the analysis according to the growth stage and the analysis of the flowers and leaves confirmed this. To improve the abnormal gustatory that is sensation associated with a modern diet or with insufficient intake of inorganic components by aged persons, dokudami tea brewed from a herbal plant provides a readily drunk remedy.