天然苦味料ジャマイカカッシア抽出物の成分分析 Analysis of Constituents in Jamaica Quassia Extract, a Natural Bittering Agent
Jamaica quassia extract, a natural bittering agent, is described as “a substance extracted from bark of Jamaica quassia (<i>Quassia excelsa</i> SW.)” in the List of Existing Food Additives in Japan. The constituents in Jamaica quassia extract product were investigated as a part of an ongoing study to evaluate its quality and safety as a food additive. The main constituents of the extract were identified as quassin and two isomers of neoquassin by using LC/MS. The main constituent, quassin, was isolated and the structure was determined by spectral means. The quantification of their main constituents was performed by HPLC using quassin as a standard, and the concentrations of quassin and total of neoquassin isomers were 21.4% and 55.5%. In addition, it was confirmed that Jamaica quassia extract was different from quassia extract, which is extracted from bark of <i>Picrasma quassioides</i> BENN. belonging to the same family as <i>Q. excelsa</i>, by comparing their HPLC profiles.
- 食品衛生学雑誌 = Journal of the Food Hygienics Society of Japan
食品衛生学雑誌 = Journal of the Food Hygienics Society of Japan 44(6), 328-331, 2003-12-25