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Cellulose Crystallinity and the Reconstitution of Dehydrated Carrots
Author(s) -
STERLING CLARENCE,
SHIMAZU FUMINAGA
Publication year - 1961
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.1365-2621.1961.tb00393.x
Subject(s) - crystallinity , dehydration , chemistry , food science , cellulose , volume (thermodynamics) , biochemistry , crystallography , physics , quantum mechanics
SUMMARY Blanched and unblanched dice of carrot phloem were dehydrated at two different rates and stored for periods up to 6 months. The rehydrated volume was always greater for blanched dice than for unblanched. In all samples, the rehydrated volume decreased as a result of storage. No consistent differences among samples could be attributed to differences in rate of dehydration. Cellulose, extracted from the dice, was examined for crystalline content by water‐vapor sorption, X‐ray diffraction, iodine adsorption, enzymatic digestibility, and density methods. All methods agreed in showing a higher crystallinity in unblanched than in blanched samples, a continual increase in crystallinity in all samples as storage time increased, and no notable differences in crystallinity as a result of different dehydration rates.