<b>Differences in Water Hardness when preparing Ephedrae Herba Decoctions : Special Focus on a Comparison of Tap Water </b><b>in Japan and China </b>

• FUEKI Tsukasa

  Matsuya Pharmacy

• MATSUOKA Takanori

  Department of General Medicine and Emergency Care, Faculty of Medicine, Toho University Atago Hospital Kochi General Rehabilitation Hospital Nerima General Hospital Kampo Medical Center

• BEPPU Masashi

  Center for Education Research in Medicine and Dentistry, Tokyo Medical and Dental University

• YAMAGUCHI Hidetoshi

  Shinshu College of Medical Welfare

• NAKATA Hideyuki

  Nerima General Hospital Kampo Medical Center

• RAI Kenshu

  Center of Tsurukame Kampo, Shinjuku Kaijo Building

• SAKAI Yumi

  Department of Japanese-Oriental (Kampo) Medicine, Graduate School of Medicine, Chiba University

• NAGASAKA Kazuhiko

  Center of Japanese Oriental Medicine Suwa Central Hospital

• MAKINO Toshiaki

  Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Nagoya City University

• NAMIKI Takao

  Department of Japanese-Oriental (Kampo) Medicine, Graduate School of Medicine, Chiba University

• OKADA Kenkichi

  Okada Clinic

• IWAI Yusen

  Kichijoji Toho Clinic

• MAKIZUMI Kazuhiro

  Makizumi Internal Medicine Clinic

Bibliographic Information

Other Title

• <b>水質がマオウの煎液に及ぼす影響について</b>
• 水質がマオウの煎液に及ぼす影響について : 特に日本と中国の上水道水の比較
• スイシツ ガ マオウ ノ センエキ ニ オヨボス エイキョウ ニ ツイテ : トクニ ニホン ト チュウゴク ノ ジョウスイドウスイ ノ ヒカク
• Differences in Water Hardness when preparing Ephedrae Herba Decoctions : Special Focus on a Comparison of Tap Water in Japan and China
• <b>─特に日本と中国の上水道水の比較─</b>

Abstract

Decoctions of Ephedrae Herba were prepared using tap water sampled in Changping District, Beijing City(China), tap water sampled in Niigata City (Japan) and some mineral water samples sold in markets. Various dissimilarities were found between drug extracts prepared using tap water in Japan and China, and the extraction efficiency of the alkaloids with Beijing tap water was approximately 80% of that with Niigata tap water. It is suggested that these dissimilarities result from concentrations of temporally hard components, such as calcium and magnesium bicarbonate salts, in the water. In addition, when Zizyphi Fructus and Ephedrae Herba were decocted together in hard water, the state of the decoction, ephedra-alkaloid content included, was found to come close to that of single Ephedrae Herba decoctions prepared using soft water. It was suggested that Ziziphi Fructus might possibly play roles as a softening agent in decoctions prepared using hard water.

Journal

• Kampo Medicine

  Kampo Medicine 63 (5), 313-321, 2012

  The Japan Society for Oriental Medicine

Keywords

• hard water
• Ephedrae Herba
• tap water
• Zizyphi Fructus
• extraction efficiency

Details

• CRID: 1390001204911545856
• NII Article ID: 130003369894
• NII Book ID: AN00015774
• DOI: 10.3937/kampomed.63.313
• ISSN: 1882756X
• ISSN: 02874857
• NDL BIB ID: 024030180
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024030180
• Web Site: https://search.jamas.or.jp/link/ui/2012373472
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed