著者

坂元(佐々木) 史歩 佐藤 恭子 阿部 雅美 杉本 直樹 米谷 民雄

出版者

日本食品化学学会

雑誌

日本食品化学学会誌 (ISSN:13412094)

巻号頁・発行日

vol.5, no.1, pp.57-63, 1998-06-30 (Released:2017-12-01)

参考文献数

9

被引用文献数

1

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Turmeric oleoresin is a natural food color used worldwide. Its principal pigment is curcumin, and demethoxycurcumin and bisdemethoxycurcumin are also constituents. In this report, the photo-stability of curcumin reagent, turmeric oleoresin preparations, and a turmeric preparation used as food color was examined and the following results were obtained. 1) Based on the quantity ratios of 3 pigments and the presence of non-coloring constituents, the preparations including a turmeric preparation were divided into 2 categories. 2) It was difficult to detect 3 spots of the pigments by TLC chromatography using a microcrystalline cellulose plate. 3) On photoirradiation, the curcumin reagent was relatively stable in alcohols among various solvents. 4) After the photo-irradiation of curcumin reagent, a cyclisation product of curcumin was detected, as well as decomposed compounds such as vanillic acid. vanillin, and ferulic acid. 5) The photo-stability was not different among the preparations. 6) The photo-decomposed compounds were not detected in any of the preparations.

著者

坂元(佐々木) 史歩 佐藤 恭子 阿部 雅美 杉本 直樹 米谷 民雄

出版者

日本食品化学学会

雑誌

日本食品化学学会誌 (ISSN:13412094)

巻号頁・発行日

vol.5, no.1, pp.57-63, 1998-06-30

被引用文献数

1

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Turmeric oleoresin is a natural food color used worldwide. Its principal pigment is curcumin, and demethoxycurcumin and bisdemethoxycurcumin are also constituents. In this report, the photo-stability of curcumin reagent, turmeric oleoresin preparations, and a turmeric preparation used as food color was examined and the following results were obtained. 1) Based on the quantity ratios of 3 pigments and the presence of non-coloring constituents, the preparations including a turmeric preparation were divided into 2 categories. 2) It was difficult to detect 3 spots of the pigments by TLC chromatography using a microcrystalline cellulose plate. 3) On photoirradiation, the curcumin reagent was relatively stable in alcohols among various solvents. 4) After the photo-irradiation of curcumin reagent, a cyclisation product of curcumin was detected, as well as decomposed compounds such as vanillic acid. vanillin, and ferulic acid. 5) The photo-stability was not different among the preparations. 6) The photo-decomposed compounds were not detected in any of the preparations.

著者

佐藤 恭子 坂元(佐々木) 史歩 米谷 民雄 山田 隆

出版者

[日本食品衛生学会]

雑誌

食品衛生学雑誌 (ISSN:00156426)

巻号頁・発行日

vol.41, no.2, pp.122-125, 2000-04-25

被引用文献数

2

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既存添加物のコウジ酸が甲状腺腫瘍を引き起こすことが報告されている. そこで, コウジ酸製剤を食品に使用した場合の残存量に寄与すると考えられる種々の要因, 浸漬時間, 洗浄, 保存, 煮沸等の影響について, 殻付きの甘エビを用いて検討した. その結果, 冷凍, 解凍の操作により, 殻及び身中のコウジ酸は減少し解凍時の水分の流出とともに溶出するものと考えられた. また, 殻ごと洗浄した場合は, 身中のコウジ酸含量は洗浄しない場合と変わらず, 洗浄では溶出しないと考えられた. 冷蔵では, 冷凍に比べ, 身中の残存量が多かった. 更に, 煮沸により, 殻及び身中のコウジ酸の8~9割が溶出すると考えられた.