Journal of Food Science · 1984 · 30 citations · 5 references
AgricultureFood ScienceHorticultural SciencesFood AnalysisFood ChemistryFood ProcessingCarbohydrates In FoodsFood PreparationFood StorageStarch ChemistryAmorphous Matrix FormationConsumer Acceptance Over StorageFood Storage ConditionsFood Sugar AnalysisStarch Content AnalysisStarch Physicochemical PropertiesStarch Quality AnalysisSweet Potato
ABSTRACT ‘Jewel’ and ‘Centennial’ sweet potatoes were processed into frozen patties at harvest, after curing I wk, and after curing and storing up to 26 wk. Sugar, starch, and pectin contents were determined on raw roots, cooked slices, and finished patties. The starch content after cooking was correlated with consumer acceptance and is the most important factor in the preparation of a patty of consistent quality from both fresh and stored roots. Scanning electron microscopy showed that in the cooked, pureed sweet potatoes most of the cells had been ruptured and that the patty was held together by an amorphous matrix consisting of added ingredients and spilled cellular contents.
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