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Effect of prior technological treatment on the process of vegetable semi-finished product freezing

Effect of prior technological treatment on the process of vegetable semi-finished product freezing

Abstract

As a result of poor preservation of fresh fruits and vegetables caused by changes in growing conditions, mechanization of collection processes and product policy, one of the ways of reducing crop losses is its freezing. Hence, the effect of low temperature and technological treatment before freezing on the quality of vegetable semi-finished products for first and second courses based on red beet was studied. Stewing and partial dehydration (slight drying) in different modes were used as technological processing methods.The cooling rate at low temperatures can be controlled by changing the thermophysical properties of investigated sample during its technological processing before freezing.It was experimentally established that the temperature of frozen water crystallization in the investigated samples of red beet is in direct dependence on the freezing temperature and prior technological processing of the product.The starting and final points of frozen water crystallization and melting processes in the samples of red beet were experimentally defined and graphically confirmed. Also, its actual quantity was calculated.

В статье представлены результаты исследований влияния низких температур и предварительной технологической обработки перед замораживанием на качество овощных полуфабрикатов для первых и вторых блюд на основе свеклы столовой. Установлены изменения диапазонов температур кристаллизации и плавления воды в исследуемых образцах при различных режимах тушения, а также изменения скорости замораживания при различных режимах подсушивания.

В статті представлено результати досліджень впливу низьких температур та попередньої технологічної обробки перед заморожуванням на якість овочевих напівфабрикатів для перших та других страв на основі буряку столового. Встановлено зміни діапазонів температур кристалізації та плавлення води в досліджуваних зразках за різних режимів тушіння, а також зміни швидкості заморожування за різних режимів підсушування.

Keywords

буряк столовий; тушіння; підсушування; швидкість заморожування; виморожена волога, УДК 65.012.12:664.8.037:635.11, red beet; stewing; slight drying; freezing rate; frozen water, свекла столовая; тушение; подсушивание; скорость замораживания; вымороженная вода

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold