广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2011年
17期
70-72
,共3页
超声提取%植物色素%酸碱指示剂%应用
超聲提取%植物色素%痠堿指示劑%應用
초성제취%식물색소%산감지시제%응용
ultrasonic composition%plant pigment%acid-base indicator%application
以阳荷、葡萄皮和洋葱为原料,采用超声波法提取出几种植物色素,并将植物色素作保质期观察和酸碱指示剂的应用,结果表明：植物色素在70%的酸性乙醇中保质期最长,而在强酸和强碱性溶液中保质期最短。另外,红色素在酸性条件下显红色,在碱性条件下显蓝色,而且阳荷红色素的显色更加明显。因此,通过超声波法提取出的植物色素,阳荷红色素最适宜作为酸碱指示剂的应用。
以暘荷、葡萄皮和洋蔥為原料,採用超聲波法提取齣幾種植物色素,併將植物色素作保質期觀察和痠堿指示劑的應用,結果錶明：植物色素在70%的痠性乙醇中保質期最長,而在彊痠和彊堿性溶液中保質期最短。另外,紅色素在痠性條件下顯紅色,在堿性條件下顯藍色,而且暘荷紅色素的顯色更加明顯。因此,通過超聲波法提取齣的植物色素,暘荷紅色素最適宜作為痠堿指示劑的應用。
이양하、포도피화양총위원료,채용초성파법제취출궤충식물색소,병장식물색소작보질기관찰화산감지시제적응용,결과표명：식물색소재70%적산성을순중보질기최장,이재강산화강감성용액중보질기최단。령외,홍색소재산성조건하현홍색,재감성조건하현람색,이차양하홍색소적현색경가명현。인차,통과초성파법제취출적식물색소,양하홍색소최괄의작위산감지시제적응용。
Using Zingiber strioatum,grape skin and onion as raw rnaterials,several plant pigments were extracted with ultrasonic,and the shelf life and the application of these plant pigments as acid-base indicator were studied.The results showed that these plant pigments are preserved for the longest time in 70% acid alcohol solution while for the shortest time in the superacid and alkali solution.Besides,the haematochrome explicited red in acidic conditions and blue in alkaline condition,while the color of haematochrome of Zingiber strioatum in both conditions was more obvious.Therefore,among those plant pigments extracted by means of ultrasonic,the haematochrome of Zingiber strioatum was most suitable as the acid-base indicator.
