單粒新舊米檢定方法之研究（第二報）

Identification of New and Old Milled Rices by Single Grain (II)

許愛娜(Ai-Na Hsu) ； 宋勳(Shiun Song)

《臺中區農業改良場研究彙報》 33期 (1991/12) Pp. 1-6

https://doi.org/10.6956/BTDAIS.199112.0001

摘要

為辨別混合米中單粒米之新舊，利用免疫血清反應盤與多管式微量吸管，將米粒單粒分離並注入微量試藥，調查溶液或米粒之顏色反應。本試驗採用兩種方法，其一為將Brom-Thymol Blue與Phenol Red溶解於NaOH中，經處理後新米米粒或其溶液為紫色，舊米米粒或其溶液為黃色。其二為利用Brom-Thymol Blue與Methyl Red溶解於ethyl alcohol中，經處理後新米溶液為綠色，舊米溶液則轉黃趨橙色。經由此法並可藉以明瞭混合米中新舊米所佔之比率。

關鍵字

單粒米 ； 顏色反應 ； 檢定 ； 新舊米

並列摘要

Laboratory studies were conducted to identify the new and old milled rice by single grain among mixed rice using the ELISA plate and multi-channel adjustable micropipette method. The separated single grain were injected with minute amount of chemical reagent, and the reaction of reagent solution or grain were observed and recorded. Two chemical solutions were used in this studies. The first solution is contained Brom-Thymol Blue and Phenol Red, which were dissolved in NaOH, and the color reaction of grain or solution were to determine the freshness of milled rice. The new grain solution showed violet color, while the old grain turned into yellow. The second solution is contained Brom-Thymol Blue and Methyl Red, whice were dissolved in ethyl alcohol, new grain solution showed green color, while the old grain solution turned into yellow to orange. This method could be determined the rate of new and old milled rices among the mixed rice grains.

並列關鍵字

color reaction ； identification ； new and old milled rices ； single grain