Abstract
A gas chromatographic method using a capillary column is described for the quantitative analysis of fructose, glucose, sucrose and myo-inositol in orange juice. The method is evaluated for precision and recovery using phenyl-β-glucoside as an internal standard. The results support the suitability of the method. Carbohydrates (fructose, glucose, sucrose and myo-inositol) were determined in different kinds of orange juice. The determination of carbohydrate composition and ratios of the carbohydrate constituents provide a method to assess orange juice quality, especially the myo-inositol content and myo-inositol/fructose ratio. These new indices, which were found to be lower in samples made from concentrates, provide information on the quality and genuineness of orange juice.
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Received: 10 June 1997
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Villamiel, M., Martínez-Castro, I., Olano, A. et al. Quantitative determination of carbohydrates in orange juice by gas chromatography. Z Lebensm Unters Forsch 206, 48–51 (1998). https://doi.org/10.1007/s002170050212
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DOI: https://doi.org/10.1007/s002170050212