Food Processing: Techniques and Technology Food Processing: Techniques and Technology Техника и технология пищевых производств 2074-9414 2313-1748 65620 10.21603/2074-9414-2023-2-2434 ОРИГИНАЛЬНАЯ СТАТЬЯ ORIGINAL ARTICLE ОРИГИНАЛЬНАЯ СТАТЬЯ Effect of Moisture Content on the Quality and Quantity of Screw-Pressed Flax Seed Oil Влияние содержания влаги на качество и количество льняного масла шнекового отжима https://orcid.org/0000-0003-4095-8734 Хасанов Жахонгир Ҳикматиллоевич Hasanov Jahongir H. hasanovjahongir1980@gmail.com https://orcid.org/0000-0003-3378-5679 Мирзахмедов Шерзод Дилмуродович Mirzaxmedov Sherzod D. https://orcid.org/0000-0002-9860-6814 Султонова Элвира Митхатовна Sultonova Elvira M. https://orcid.org/0000-0002-7296-1412 Салихов Шавкат Исмаилович Salikhov Shavkat I. Институт биоорганической химии имени академика А. С. Садыкова Ташкент Узбекистан A.S. Sadykov Scientific Institute of Bioorganic Chemistry Tashkent Uzbekistan Ташкентский государственный технический университет им. Ислама Каримова Ташкент Узбекистан Islam Karimov Tashkent State Technical University Tashkent Uzbekistan Институт биоорганической химии имени академика А. С. Садыкова Ташкент Узбекистан A.S. Sadykov Scientific Institute of Bioorganic Chemistry Tashkent Uzbekistan Институт биоорганической химии имени академика А. С. Садыкова Ташкент Узбекистан A.S. Sadykov Scientific Institute of Bioorganic Chemistry Tashkent Uzbekistan 23 06 2023 23 06 2023 53 2 309 315 22 07 2022 06 09 2022 https://fptt.ru/en/issues/21711/21736/

В последнее время в центре внимания ученых все чаще оказываются различные аспекты полезного и экологичного питания. Лен относят к категории т. н. суперпродуктов, которые включают в себя множество полезных ингредиентов. Например, льняное масло является отличным источником полиненасыщенных жирных кислот. Однако термочувствительные полиненасыщенные жирные кислоты не терпят термической обработки. Шнековое прессование позволяет производить льняное масло при более низких температурах, но низкий выход продукта делает этот метод невыгодным. Повысить качество масла и увеличить его выход может предварительная обработка семян. Данное исследование было посвящено влиянию содержания влаги в семенах льна на количество и качество льняного масла. В эксперименте использовали лен (Linum usitatissimum L.) из Кашкадарьинской области Узбекистана. Для определения таких параметров, как кислотное число, содержание свободных жирных кислот, перекисное число, выход масла и содержание осадка, использовались стандартные методы. Уравнения регрессии были получены с использованием метода регрессионного анализа. Наибольший выход масла (40,99 %) наблюдался при влажности 9,56 %. При влажности 7,55 % этот показатель снизился на 3,17 %. Содержание осадка в масле увеличивалось при более низкой влажности семян льна (14,62–5,55 %). При увеличении содержания влаги кислотное число, перекисное число и содержание свободных жирных кислот демонстрировали как тенденцию к снижению, так и к повышению. Данное исследование показало, что содержание влаги в семенах льна влияет на качественный и количественный профиль масла шнекового отжима. Оптимальные параметры переработки позволяют получить полезное для здоровья и высокопитательное масло.

Healthy foods and green processing are currently in the focus of scientific attention. Flax is considered a superfood that includes numerous beneficial ingredients. Its oil is a great source of polyunsaturated fatty acids. However, the heat-sensitive futures of the polyunsaturated fatty acids require low-temperature methods. Screw pressing can produce oils at lower temperatures, but a lower oil capacity makes it less advantageous. Pre-treatment of seeds as a crucial pre-processing stage affects the quality and quantity of oil. This research featured the effect of moisture content in flax seeds on the quantity and quality flax seed oil. The study involved local flax (Linum usitatissimum L.) from the Qashqadaryo Region, Uzbekistan. Standard methods were used to define the quality parameters of oil, i.e., acid value, free fatty acids content, peroxide value, oil recovery, and sediment content. Regression equations were obtained using the method of regression analysis. The highest oil recovery of 40.99% was observed at the moisture content of 9.56%. At 7.55%, the oil recovery dropped by 3.17%. The sediment content in the oil increased at lower moisture contents in the flax seeds (14.62–5.55%). The acid value, peroxide value, and free fatty acid content demonstrated both downward and upward trends when the moisture content increased. The moisture content in flax seeds affected the quality and quantity profile of screw-pressed oil. The optimal parameters of oil processing can yield health-beneficial and highly nutritional oil.

 Шнековое прессование влажность выход масла содержание осадка перекисное число кислотное число свободные жирные кислоты Screw pressing moisture content oil recovery sediment content peroxide value acid value free fatty acids

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