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Acidity, Chlorophyll, and Carotene Content of Broccoli (Moist basis) Component Analyzed 1963a 1964b t' Dry matter, 9c 11.85 11.45 1.99 * Total acidity, meq./100 grams 2.37 1.86 7.04 *** pH 6.61 6.71 4.35 *** Chlorophylls, mg./100 grams a 14.23 11.72 5.91 b 5.21 4.00 8.27 *** Total 19.43 15.70 6.84 *** Chlorophylls, 9c retention a 96.2 93.3 2.35 b 95.4 92.3 0.78 Total 94.7 92.0 2.17 * Chlorophylls a to b 2.72 2.89 1.46 Carotene, mg./ 100 grams 0.88 0.68 5.95 *** a Means of 72 samples. 6 Means of 36samples.c One and three asterisks indicate significance at 5 and 0.1 % levels, respectively.

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