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Research on the soluble solids content of pear internal quality index by near-infrared diffuse reflectance spectroscopy


, : Research on the soluble solids content of pear internal quality index by near-infrared diffuse reflectance spectroscopy. Guang Pu Xue Yu Guang Pu Fen Xi 28(4): 797-800

The objectives of the present study were to establish the relationships between the near-infrared diffuse reflectance (NIR) spectra and the soluble solids content (SSC) of internal quality index of pear fruit, and to evaluate the value of NIR spectrometry in measuring the SSC of internal quality index of pear fruit. NIR spectroscopy in the 350-1 800 nm range was used to analyze the SSC of internal quality index of pear fruit with multi-linear regression (MLR), principal component regression (PCR) and partial least square (PLS) regression. Meanwhile, the best combinations of different positions at pear fruit, the logarithms of the reflectance reciprocal log(1/R), its first derivative D1 log(1/R) and second derivative D2 log(1/R) were investigated. The best prediction results, based on the comparative analysis, were obtained with the PLS model and D1 log(1/R) at equatorial position of pear fruit. The results show that the predictions with PLS models, based on D1 log(1/R) at equatorial position of pear fruit, are correlation coefficients (R(p)) of 0.851 7 and root mean standard error of prediction (RMSEP) of 0.879 3 for SSC. The preliminary research on the built models indicates that NIR spectroscopy could provide an accurate, reliable and nondestructive method for assessing the SSC of internal quality index of pear fruit.

US$29.90

PMID: 18619301


Other references

Goodwin, P.B., 1966: The effect of water on dormancy in the potato. The dormant period of potato tubers could be terminated within 7 days by storing the tubers under moist conditions at temperatures of 20[degree]-35[degree]C and with reasonable aeration. Dry-stored tubers were dormant for at least 7 weeks. Ethylen...

Pavelić, K.; Radić, S.; Pavelić, J., 1982: Different endocrinological properties, growth rate and sensitivity to chemotherapy of aplastic mammary carcinoma in normo- and hypoglycemic phase of tumor growth. An aplastic mammary carcinoma (AMC) grew slower in hypoglycemic mice (caused by fasting or by daily insulin injections) and in hyperglycemic mice (caused by alloxan or streptozotocin, or by daily injections of glucose) than in normoglycemic mice....

Casselman, W.G.; Williams, G.R., 1954: Choline deficiency in the guinea pig. Nature 173(4396): 210-211

Anonymous, 1971: Listings of health care institutions. Hospitals 45(15): Suppl 2:1-254

Dinsmore, S.; Dambrosia, J.; Dalakas, M.C., 1995: A double-blind, placebo-controlled trial of high-dose prednisone for the treatment of post-poliomyelitis syndrome. Annals of the New York Academy of Sciences 753: 303-313

Engin T.; Balci M.; Suemer Y.; Oezkan Y.Z., 1981: General geological setting and the structural features of the Guleman peridotite unit and the chromite deposits (Elazig, eastern Turkey). Bulletin of the Mineral Research and Exploration Institute of Turkey 95-96: 34-56

Huajian Gao; James R.R.ce; Jin Lee, 1991: Penetration of a quasi-statically slipping crack into a seismogenic zone of heterogeneous fracture resistance. Journal of Geophysical Research: Solid Earth 96(B13): 21535-21548

Wilson Leslie Edwin, 1937: New species of dolphin from Point Reyes, California. Proceedings of the Geological Society of America Pages 387

Wachtmeister L., 1974: Thresholds of the oscillatory potentials of the human electro retinogram. Dodt, E And Jerome T Pearlman (Ed ) Documenta Ophthalmologica Proceedings Series, Vol 4 Xith International Society For Clinical Electroretinography Symposium, Bad Nauheim, West Germany, May, 1973 Viii+518p Illus Dr W Junk B V Publishers: The Hague, Netherlands Isbn 90-6193-144-4 477-482

Blissett, D.; Pickerill, R., 2004: Soft-sediment ichnotaxa from the Cenozoic white limestone group, Jamaica, West Indies. Jamaica, the third largest of the Greater Antillean islands, exposes various lithological units that are dominated by Cenozoic carbonate rocks including those of the mid-Cenozoic White Limestone Group. This Group is comprised of six formations, th...