Non-destructive measurement of PH, soluble solids and firmness of jonagold apples using NIR-spectroscopy

Acta Horticulturae

Volumn 562, Issue , 2001, Pages 167-173

  Lammertyn, J ^a   Nicolai B ^a   De Smedt, V ^a   De Baerdemaeker, J ^a  

^a UNIVERSITY OF LEUVEN   (Belgium)

Author keywords

Acoustic; PCA; PCR; PLS; Quality; Stiffness; Sugar; Texture

Indexed keywords

EID: 67349279935     PISSN: 05677572     EISSN: None     Source Type: Book Series    
DOI: 10.17660/ActaHortic.2001.562.18     Document Type: Conference Paper

References (9)

1. Bellon-Maurel, V. 1992. Application de la spectroscopie proche infrarouge au contrôle en ligne de la qualité des fruits et légumes. Thèse de doctorat, l'Institut National Polytechnique de Toulouse.
2. Chen, H. and De Baerdemaeker, J. 1993. Effect of apple shape on acoustic measurements of firmness. Journal of agricultural engineering research 56:253-266.
3. Kawano, S., Watanabe, H. and Iwamoto, M. 1992. Determination of sugar content in intact peaches by near infrared spectroscopy with fiber optics in interactance mode. Journal of Japanese Society of Horticultural Sciences 61, no. 2:445-451.
4. Martens, H. and Naes, T. 1987. Multivariate calibration by data compression. In: Near-infrared technology in the agricultural and food industries. Williams & Norris (Eds.) St. Paul, Minnesota, USA: American Association of Cereal Chemists, Inc.
5. Moons, E., Dubois, A., Dardenne, P. and Sindic, M. 1997. Nondestructive visible and NIR spectroscopy for the determination of internal quality in apple. Proceedings from the sensors for nondestructive testing international conference and tour Holiday Inn international drive resort, Orlando, Florida, February.
6. Savitzky, A. and Golay, M.J.E. 1964. Smoothing and differentiation of data by simplified least squares procedures. Analytical Chemistry 36:1627-1639.
7. Slaughter, DC. 1995. Nondestructive determination of internal quality in peaches and nectarines. Transactions of the ASAE 38, no. 2:617-623.
8. Upchurch, B.L., Throop, JA. & Aneshansley, D.J. 1994. Influence of time, bruise-type, and severity on near-infrared reflectance from apple surfaces for automatic bruise detection. Transactions of the ASAE 37, no. 5:1571-1575.
9. Verlinden, B. and De Baerdemaeker, J. 1994. Development and testing of a tensile method for measuring the mechanical properties of carrot tissue during cooking. AgEng paper No. 94-G-055. European Society of Agricultural Engineers, EurAgEng.