The use of vibrational spectroscopy to predict vitamin C in Kakadu plum powders (Terminalia ferdinandiana Exell, Combretaceae).

Journal of the Science of Food and Agriculture
Daniel CozzolinoYasmina Sultanbawa

Abstract

The objective of this study was to evaluate the feasibility of using either mid-infrared (MIR) or near-infrared (NIR) spectroscopy to predict the vitamin C content in Kakadu plum (Terminalia ferdinandiana Exell, Combretaceae) powder samples. Vitamin C is the main and quality-determining bioactive compound in Kakadu plum (KP). Kakadu plum powder samples were analyzed by ultra-performance liquid chromatography coupled to a photodiode array detector (UPLC-PDA) and scanned using both MIR and NIR spectroscopy. The coefficient of determination (R2 ) and the standard error in cross validation (SECV) for vitamin C were 0.93 and 1811 mg 100 g dry weight (DW) and 0.91 and 1839 mg 100 g DW using MIR and NIR spectroscopy, respectively. The coefficient of correlation and the standard error of prediction (SEP) obtained using the independent set (n = 5) were 0.65 (SEP: 2367 mg 100 g DW) and 0.73 (SEP: 4773 mg 100 g DW) using MIR and NIR spectroscopy, respectively. The results obtained in this study clearly showed that it is possible to calibrate IR spectroscopic instruments for the measurement of vitamin C in KP plum powder samples. Mid-infrared spectroscopy showed the most promising results; however, Fourier transform near-infrared (FTNIR) s...Continue Reading

References

Oct 3, 2002·The Journal of Pharmacy and Pharmacology·Hong Yang, Joseph Irudayaraj
Jul 4, 2012·Journal of the Science of Food and Agriculture·Audrey PissardMarc Lateur
Jan 16, 2014·Food Chemistry·Izabela KonczakAbdullah Dalar
Jan 16, 2014·Advances in Nutrition·Jens LykkesfeldtBalz Frei
Apr 7, 2015·Free Radical Biology & Medicine·James N CobleyGraeme L Close

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Citations

Sep 21, 2021·Seminars in Respiratory and Critical Care Medicine·Ankita AgarwalJonathan E Sevransky

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