Portions of this paper were presented at the 41st Annual Meeting of the Institute of Food Technologists, Atlanta, GA, June, 1981.
Statistical Evaluation of Data for Detecting Adulteration of California Navel Orange Juice
Article first published online: 25 AUG 2006
Journal of Food Science
Volume 48, Issue 2, pages 636–640, March 1983
How to Cite
VANDERCOOK, C. E., NAVARRO, J. L., SMOLENSKY, D. C., NELSON, D. B. and PARK, G. L. (1983), Statistical Evaluation of Data for Detecting Adulteration of California Navel Orange Juice. Journal of Food Science, 48: 636–640. doi: 10.1111/j.1365-2621.1983.tb10807.x
- Issue published online: 25 AUG 2006
- Article first published online: 25 AUG 2006
- Ms received 5/10/82; revised 11/24/82; accepted 12/2/82.
Compositional data from California early-, mid-, and late-season navel orange juice, concentrate and two-stage pulpwash were analyzed by various statistical techniques (ratios, regression, chi-square, Linear combination, and discriminant analysis) for detecting adulteration. These techniques were evaluated according to applicability for detecting three types of adulteration: (1) addition of sugar and/or citric acid, (2) addition of excess or unauthorized pulpwash, and (3) addition of other constituents intended to mask the dilution. Most parameters were significantly affected by time of harvest following commercial maturity. Two-stage pulpwash showed small but significant differences from corresponding single strength juice. Product differences were of about the same magnitude as the differences due to harvest date.