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应用罗维朋色辉计测定固形及糊状物色值
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作者 余德寿 《粮食与油脂》 1992年第3期50-52,共3页
(一)概述由英国罗维朋色辉计公司生产的罗维朋色辉计(Loviband Tintcmeter)与滤光片光度计(Filter Photometer)和分光光度计(Spectrophotometes)的原理均不相同,它是利用光的透射与反射作用,根据三原色的原理,用不同深浅的红、黄、
关键词 罗维朋色辉计 固形粉 糊状物 色值
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Influence of Atomization Parameters in the Obtention of Mango Pulp Powder
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作者 Erica Mil6 de Freitas Felipe Rocha Luis Gomes de Moura Neto +2 位作者 Sueli Rodrigues Marcos Rodrigues AmorimAfonso Jos6 Maria Correia da Costa3 《Journal of Food Science and Engineering》 2013年第7期357-362,共6页
Mango is a widely cultivated and consumed fruit in Brazil and one of the most important alternatives to take advantage of the production excess is dehydration. Therefore, this work aims at establishing better operatio... Mango is a widely cultivated and consumed fruit in Brazil and one of the most important alternatives to take advantage of the production excess is dehydration. Therefore, this work aims at establishing better operational conditions for "spray-drying" processes, in order to obtain the powder of mango pulp by means of a rotational central compounded planning, and also at carrying out the physicochemical characterization of both the integral mango pulp and the powder obtained from the operational conditions mentioned above. Both integral mango pulp and powder were analyzed as for the following physicochemical characteristics: humidity, pH, titratable acidity, soluble solids (~Brix), vitamin C and color--through parameters L*, a*, b* and h0, Chrome (C*) and color difference (AEL*a*b*). The experimental planning used presented significant differences at 5% of probability, showing that the model was adjusted to the data in accordance to F test, thus being possible to determine the best process conditions. In addition, the average results of the physicochemical parameters pointed out that the pulp used was in accordance with the patterns established by the quality and identity patterns for mango pulp. Moreover, it showed that the powder obtained had good physicochemical quality. 展开更多
关键词 MANGO spray-dryer concentration of maltodextrin paste feeding speed hot air output.
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