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NUTRITIVE CONTENT OF CANNED TOMATO JUICE AND WHOLE KERNEL CORN
Author(s) -
FARROW R. P.,
LAMB F. C.,
ELKINS E. R.,
LOW N.,
HUMPHREY JOHANNA,
KEMPER KAREN
Publication year - 1973
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1973.tb02823.x
Subject(s) - ascorbic acid , nutrient , mathematics , population , food science , sample (material) , sampling (signal processing) , agronomy , microbiology and biotechnology , toxicology , biology , chemistry , computer science , medicine , ecology , environmental health , filter (signal processing) , chromatography , computer vision
Most of the information on the nutritive value of canned foods in the technical literature was obtained 25–30 years ago. A resurvey of the nutrient content of canned tomato juice and canned whole kernel corn has been carried out on a nation‐wide basis with sampling methods directly comparable to the older survey procedures. Although there have been extensive changes in varietal types and processing methods during the past 30 yr the mean nutritional values for these products have changed very little. Comparison of the nutrient values for these products listed in USDA Handbook No. 8 reveals no differences that could not be attributed to seasonal variations. A possible exception is the ascorbic acid content of tomato juice, which for the 1969 season was found to be somewhat lower than the listed value. While sample‐to‐sample variation is small in terms of the RDA of most nutrients, it can be critical in terms of the regulatory requirements proposed for nutritional labeling. Under this proposal canners would have to grossly “under declare” some nutrients such as ascorbic acid in order to ensure compliance. The indication is that mean values derived from adequate sampling programs are relatively stable although the population may encompass wide ranges of variability. For this reason, nutrient labeling declarations based upon properly constituted average values provide the most practicable solution to the inherent technical problems in the proposed nutritional labeling regulation