研制—Brix度數表供由反光儀測定值來換算柑橙汁中之固型物含量

Development of a Brix Table for the Calculation of Solids Content in Citrus Juice Concentrates by Refractometric Measurements

陳金樹(Chin Shu Chen)

《農業機械學刊》 2卷1期 (1993/03) Pp. 1-14

https://doi.org/10.30062/JAM.199303.0001

摘要

果汁中之水溶性固型物通常以反光儀測定。測定值以Brix度數表示此數是固型物在溶液中重量的百分率。當Brix度數得知，果汁中的固型物含量可由Brix度數表查算。本文研制製一電腦化Brix度數表提供蔗糖溶液之Brix度數、比重、密度值（在真空中）、密度值（在空氣中）及固型物含量之各種相關數值。本表之密度值相同於美國國家標凖局所發表的庶糖溶液之密度值，其最大誤差不超過1×10^(-5)公克／公撮。本表的設計提供一標凖查照表以供用於果汁生産之品質管制及供用於國際交易濃縮果汁之價值的計算。

關鍵字

Brix度數表 ； 密度 ； 果汁 ； 固形物

並列摘要

Soluble solids in fruit juices are commonly measured by a refractometer. The measured values are expressed in (superscript 0)Brix which is the soluble solids in percent by weight. By knowing the Brix value, the amount of solids in the juice can be found from a Brix table. A computerized Brix table which provides the relationship of (superscript 0)Brix, specific gravity, true density, apparent density and solids weight of the sucrose solutions was developed for convenient computation of solids content in citrus juices. In this table, the apparent density data agree with those of sucrose solutions published by the U.S. National Bureau of Standards with the maximum deviation ±1×10^(-5)g/ml. This Brix table was designed to provide uniform reference for quality control in juice processing as well as for the determination of juice values in world trade of citrus juice concentrates.

並列關鍵字

Brix table ； Density ； Fruit juice ； Soluble solids