Abstract
Electrical Impedance Spectroscopy (EIS) has been used extensively to characterize electrical properties of plant tissue. This research explores the potential connections between electrical impedance and the major parameters can contribute to fruit taste. Experiments were performed on four apple varieties, Granny Smith, Fuji, Pink Lady and Red Delicious respectively. Electrical impedance was measured using a Solartron 1260A Impedance/Gain-Phase Analyzer at frequency range from 1Hz to 1MHz. Soluble solid content (SSC), titratable acidity (TA) and pH value of apple were measured as chemical parameters. It has been observed that the four apple varieties can be divided into three groups according to the ratio of SSC to TA (p<0.05), namely the low-acid variety, the high-acid variety, and the medium-acid variety. The three groups can also be exhibited from the correlations between impedance square root (ISR) and SSC and/or TA. SSC correlates linearly with impedance for low-acid variety, TA has linear relationship with ISR for high-acid variety, and both SSC and TA contribute to the linear relationship with ISR for medium variety.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Johnson I. T. (2004) New Approaches to the Role of Diet in the Prevention of Cancers of the Alimentary Tract. Mutation Research 551:9-28.
Wu X.L., Beecher G.R., Holden J.M. et al (2004) Lipophilic and Hydrophilic Antioxidant Capacities of Common Foods in the United States. J Agric Food Chem 52: 4026-4037.
Rogers E.J., Milhalik S., Ortizz D. et al (2003) Apple Juice Prevents Oxidative Stress and Impaired Cognitive Performance Caused by Genetic and Dietary Deficiencies in Mice. The Journal of Nutrition, Health & Aging 7:92-97.
Marchand L. L., Murphy S. P., Hankin J. H. et al (2000) Intake of Flavonoids and Lung Cancer. Journal of the National Cancer Institute 92: 154-160.
Pecoraro P., Guida B., Caroli M. et al (2003) Body Mass Index and Skinfold Thickness Versus Bioimpedance Analysis: Fat Mass Prediction in Children. Acta Diabeetol 40: 278-281.
Garner D., Crisosto C. H., Wiley P. et al (2005) Measurement of pH and Titratable Acidity. In Quality Evaluation Methodology. USA: Kearney Agricultural Center.
Fellers P. J. (1991) The Relationship Between the Ratio of Degrees Brix to Percent Acid and Sensory Flavor in Grapefruit Juice. Food Technology 45: 68-75.
Harker F. R., Marsh K. B., Young H. et al (2002) Sensory Interpretation of Instrumental Measurement 2: Sweet and Acid Taste of Apple Fruit. Postharvest Biology and Technology 24:241-250.
Ferris C. D. (1974) Introduction to Bioelectrodes. New York: Plenum Press.
Hoehn E., Gasser F., Guggenbuhl B. et al (2003) Efficacy of Instrumental Measurements for Determination of Minimum Requirements of Firmness, Soluble Solids, and Acidity of Several Apple Varieties in Comparison to Consumer Expectations. Postharvest Biology and Technology 27:27-37.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2007 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Fang, Q., Liu, X., Cosic, I. (2007). Bioimpedance Study on Four Apple Varieties. In: Scharfetter, H., Merwa, R. (eds) 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography. IFMBE Proceedings, vol 17. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73841-1_32
Download citation
DOI: https://doi.org/10.1007/978-3-540-73841-1_32
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-73840-4
Online ISBN: 978-3-540-73841-1
eBook Packages: EngineeringEngineering (R0)