. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. 1{ MASS. EXPERIMENT STATION BULLETIN 354 method for determining ascorbic acid is used in all the following tomato inves- tigations as it corresponds more closely to the biological values. When the modified iodine method is used, all figures must be multiplied by the factor Table 2.âComparison of Dye and Modified Iodine Methods for Determining Ascorbic Acid in Recanned Tomato Juice Storage Period Days 1-30 31- 61- 90 91-121 Average. â¦Ascorbic Acid, Average Mg. per Cc. Number of Sample.'!* Dye
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. 1{ MASS. EXPERIMENT STATION BULLETIN 354 method for determining ascorbic acid is used in all the following tomato inves- tigations as it corresponds more closely to the biological values. When the modified iodine method is used, all figures must be multiplied by the factor Table 2.âComparison of Dye and Modified Iodine Methods for Determining Ascorbic Acid in Recanned Tomato Juice Storage Period Days 1-30 31- 61- 90 91-121 Average. â¦Ascorbic Acid, Average Mg. per Cc. Number of Sample.'!* Dye Method Modified Iodine Method 30 .09 .12 30 .09 .12 30 .08 .13 31 .09 .13 .09 .13 â¦Titrations were made daily, and 3 determinations were made on each sample. 300. 40 60 Time in Days Figure 1. Biological Assay for Ascorbic Acid in Recanned Tomato Juice. Weight gains and scurvy scores of guinea pigs. Tomato luice Fed Scurvy Score A cc. 0 B cc. 0 C cc. D â cc. E.'.'.'.'! cc. F (negative control) none 11 G (positive control) fed 3 cc. canned grapefruit juice 0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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