生薬ニンジンの健康食品中のジンセノサイド含有量

We investigated the contents of ginsenoside Rb1 and Rg1 in 8 products of ginseng health foods by HPLC. Ginsenosides were detected from all the products. The ginsenoside Rb1 was at the level of 0.82 ～ 43.5 mg/ g, and the ginsenoside Rg1 was at the level of 0.05 ～ 10.7 mg/g. In some ginseng health foods, ginsenosides contents were higher than that of the ginseng crude drug (Rb1 : 6.57 mg/g, Rg1 : 4.71 mg/g). Therefore, the possibility of excessive intake of ginsenosides from ginseng health foods should be considere

Webサイトの健康食品情報の信頼性・信憑性について

The purpose of this study is to evaluate the reliability of Japanese websites providing health food information. We used the search engine "Google Japan". The search keyword was "health food", "health food and lifestyle-related disease", or "health food

健康食品中の硝酸塩の含有量調査

We investigated the contents of nitrate in health foods, vegetables, baby foods and crude drugs by HPLC. Nitrate was detected from all the products. The nitrate contents of products was as follow: supplements containing vegetables or herbs (n=14), 292～5,151μg/g; powdered vegetable juice (n=14), 404～11,860μg/g; health foods containing ginseng (n=10), 56～1,253μg/g; vegetables (n=8), 604～6,238μg/g; vegetable baby foods (n=6), 118～1,421μg/g; ginseng crude drugs (n=3), 372～2,142μg/g. The nitrate level is high in some powdered vegetable juices

Effect of Soil Moisture Content on Growth, Crude Drug "Cho-to-ko" Yield and Oxindole Alkaloid Content of Uncaria rhynchophylla (B. LIVING SCIENCE)

Uncaria rhynchophylla was cultivated by using soil with various moisture contents (20,40,60,80 or 100% of the maximum moisture content retained by soil). Both growth and crude drug "Cho-to-ko" (dried stem with hooks of U. rhynchophylla) yield of the plant were in the following order : 60%> 80%> 40%> 100%> 20%, while oxindole alkaloid content of the stem was in the following order : 20%> 60%> 100%> 40%> 80%. It is concluded that moderately wet soil is suitable for cultivation of U. rhynchophylla, in spite of the description in a Chinese literature that sandy soil is good for cultivation of the plants

Seasonal Changes of Oxindole Alkaloid Contents in the Stem Segments of Uncaria rhynchophylla (B. LIVING SCIENCE)

The seasonal changes of oxindole alkaloid content in stem segments of Uncaria rhynchophylla were investigated between July 1986 and June 1987. The highest oxindole alkaloid content in the dried stem segments was observed in July 1986,and the content decreased until the next spring, when it started to increase again. In contrast, high biomass production was obtained in winter (November and December). The optimum season to prepare the crude drug from U. rhynchophylla is discussed in relation to oxindole alkaloid content and biomass yield