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Оптимизация методики определения жирнокислотного состава молочной продукции

Оптимизация методики определения жирнокислотного состава молочной продукции

Abstract

Хроматографический анализ метиловых эфиров жирных кислот используется для определения характеристик липидной фракции пищевых продуктов и является эффективным методом выявления фальсификации и одной из наиболее важных прикладных задач в анализе пищевых продуктов. В статье приводится оптимизированный способ пробоподготовки при определении жирнокислотного состава молочной продукции для сокращения энергозатрат и времени анализа. Вся процедура, начиная от пробоподготовки до получения МЭЖК, занимает около 2 часов. При упрощенном способе время пробоподготовки сократилось в 4-5 раз и составило: для продуктов нежидкой консистенции (творог, сыр, мороженое и пр.) – 20, для молока и жидких кисломолочных продуктов (кефир, ряженка, катык и пр.) – 30 минут. Проведенная оценка показателей качества результатов анализа с применением рабочей пробы при реализации методики показала, что ее метрологические характеристики ниже, чем в базовом нормативном документе, что позволяет рекомендовать ее к применению.

Keywords

T1-995, метиловые эфиры жирных кислот, жирнокислотный состав, пробоподготовка, хроматография, молочные продукты, Technology (General)

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    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).
    1
    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.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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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!
1
Average
Average
Average
gold