美耐皿容器釋出三聚氰胺的實驗報告

日本東京國立衞生試驗所1990年做的實驗。這是網路時代，什麼資料都很容易找到的，有化學背景的人很多。請不要再隨便說什麼容器會污染之類的謊言了。更何況容器有污染那不是應該換包裝容器嗎？加油一點，好嗎？

以下是全文：

National Institute of Hygienic Sciences, Kamiyoga 1-chome, Setagaya-ku, Tokyo, Japan.

The relationship between the concentrations of formaldehyde and melamine released into 4% acetic acid from dishes and bowls made of melamine-formaldehyde resin was determined. The average concentrations in the migration solution after the sample had been treated at 60, 80, and 95 degrees C for 30 min with 4% acetic acid were 0.0 +/- 0.1, 0.5 +/- 0.4 and 3.0 +/- 2.2 ppm, respectively for formaldehyde and 0.04 +/- 0.07, 0.21 +/- 0.20 and 1.19 +/- 1.18 ppm, respectively for melamine. The correlation between the concentrations of formaldehyde and melamine released at 95 degrees C was y=0.4858x-0.2728 (r=0.8860), where y is melamine concentration (ppm), x is formaldehyde concentration (ppm) and r is the correlation coefficient. The molar concentration ratios of formaldehyde to melamine (F/M ratio) were 15.4 +/- 11.6 at 80 degrees C and 14.9 +/- 10.1 at 95 degrees C. Hence the release of both migrants was affected by temperature but the F/M ratio was not affected. The release of both compounds was was increased on repetition of the migration test at 95 degrees C but their concentrations remained constant after the tenth and seventeenth repetitions of the treatment. During this period, the F/M ratio decreased according to the equation 1n y=-1.4344 1n x+3.7814 (r=-0.9984) for a sample before the tenth repetition of the treatment and remained between 1.7 and 1.9 after the twelfth repetition, where y is the F/M ratio and x is the number of repetitions of the treatment.

簡單翻譯：

美耐皿碟與碗以4%醋酸作為食品模擬物，在不同溫度進行三聚氰胺與甲醛的溶出實驗。試驗時間30分鐘。(美耐皿容器不耐酸與熱，這已經是很嚴苛的試驗了，平常我們根本不會把它使用在這種環境中)。

 

在60℃、80℃、和95℃的狀況下，甲醛和melamine的溶出分別是0ppm(+/- 0.1 ppm)、0.5ppm(+/- 0.4 ppm)、3.5ppm(+/- 2.2 ppm)及0.04ppm(+/- 0.07 ppm)、0.21ppm(+/- 0.20 ppm)、1.19(+/-1.18 ppm)。

 

文中有提到，在95℃的狀態下，如果重覆使用同一個容器，釋出的量會愈來愈多。要一直到十次或十七以上，釋出的量才會恆定下來。所以各位請千萬注意，不要用美耐皿容器去盛裝超過60 ℃的食物。

不過我實在相當懷疑，在整個牛奶加工的過程中，有那一個階段會使用美耐皿容器去盛裝高溫或高酸的乳製品嗎？稍有常識的也會知道美耐皿容器也不適用於這種場合吧。依這實驗來講，平常使用美耐皿容器去盛裝是根本不可能有釋出或污染的。

 

最後補充，melamine是一種長期使用安全性有疑慮的化學物質。除了結石外，國外也有實驗證明有致癌疑慮。大家家裡如果有美耐皿做的盤子和碗，還是先丟掉比較安全。如果真的非用不可，也千萬不要用來裝熱食。