Выделение И Физико-Химические Свойства Пектиновых Полисахаридов Из Листьев Амаранта

МИНЗАНОВА, С.Т.

doi:10.15389/agrobiology.2021.3.591rus

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…Значение оптической плотности данных растворов составляет 1,85. В литературных источниках также показано, что желтые пигменты свеклы (бетаксантины) в лучшей степени экстрагируются спиртовым раствором [17].…”

Section: результаты и обсуждение / Results and Discussionunclassified

Properties and application of betalaine dye isolated from regional beet variety

Chesnokova,

Kuznetsova,

Levochkina

et al. 2023

Agrarnaâ nauka

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Relevance. Consumers in todayʼs society are concerned about the safety of using synthetic dyes to color food. The development and use in the food industry of natural dyes compositions based on available plant materials remains relevant. The use of natural dye based on betalains — pigments of beets (Beta vulgaris) — in the production of food products, allows not only to improve the color range of products, but also to enrich them with biologically active compounds. The objects of the study are beetroot pigments betalaines, concentrated natural dye and cream «Glace» with the addition of concentrated betalain dye.Results. Depending on the experimental conditions, betalains were extracted from plant materials. The organoleptic and physico-chemical parameters of the concentrated natural dye and cream «Glasse» with its addition were studied.Results. It has been shown that the optimal conditions for isolating betalains from beets are their extraction with 95% ethanol, ultrasonic extraction at 25 ºC, and extraction with an aqueous solution at 60 ºC for 30 min. It has been determined that the most stable color of the pigment is maintained in the range of pH = 3.7–8.2. In the region of pH > 10 there is a sharp change of the color. Betalain extracts at a pH > 10 acquire a rich dark red color. It was shown that the betalain dye obtained by the concentration method is a dark red liquid, which has antiradical activity (1,49 мМ) and contains 11 mg/cm3 of betalains. The best organoleptic characteristics were found in the cream «Glasse» with the addition of 5% concentrated betalain dye.

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Section: результаты и обсуждение / Results and Discussionunclassified

Properties and application of betalaine dye isolated from regional beet variety

Chesnokova,

Kuznetsova,

Levochkina

et al. 2023

Agrarnaâ nauka

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Modern trends in the development of selection of vegetable and melon crops

et al. 2022

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The article reflects the issues of the current state of scientific research in the FSBSI FSVC, directions and prospects for the development of selection and seed production of vegetable crops are shown. Varieties have been created that realize the bioclimatic potential of the cultivation zone, meet market requirements, and are capable of producing high yields under the influence of biotic and abiotic stressors. Selection is carried out in a combination of classical methods with innovative technologies.Biotechnologists have improved the basic protocol for in vitro microspore culture for the Brassicaceae, stages of technology for obtaining doubled haploids in microspore culture in vitro for the Apiaceae are being developed. For the first time, an effective protocol for obtaining double haploids of European radish has been developed. Doubled haploids of vegetable crops of the Cucurbitaceae, Amarantháceae, Amaryllidáceae were obtained in vitro in the culture of unpollinated ovules. The Center conducts research on the increased content of biologically active substances and antioxidants. An important place is occupied by immunological studies on the resistance of vegetable crops to harmful diseases. The institution develops systems of protective measures against pests, diseases and weeds for vegetable crops based on the use of new environmentally friendly preparations. On the basis of fundamental and priority applied research of previous years, the creation of 21 varieties and hybrids of cabbage, table beet, tomato, sweet pepper, onion, chives, leek, cucumber, melon, lettuce, chervil, potato, aster, lychnis has been completed. Along with the creation of new breeding achievements, technologies for their cultivation are being improved through the use of new agricultural practices, microfertilizers, biological products and humates on vegetable crops in various soil and climatic zones of Russia. New agricultural methods are being developed in the cultivation of mushrooms. In the field of seed production, methods are being developed to increase the germination of seeds, seed production, elements of the technology for the production of mother liquors and seeds of various vegetable and melon crops; zonal seed production technologies that increase their yield. In 2021, a team of scientists received an award from the Government of the Russian Federation for scientific work "Development and implementation of innovative technologies for growing vegetables and potatoes to provide the population with environmentally friendly food".

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Polysachrides of Viscum album L.

Аджиахметова,

Червонная,

Поздняков

et al. 2024

Традиционная Медицина

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Статья посвящена вопросам выделения и исследования сезонной динамики накопления полисахаридов листьями омелы белой (Viscum album L.), а также изучения некоторых их физико-химических характеристик. Установлены отчетливые внутрисезонные различия накопления пектиновых веществ (ПВ). Содержание ПВ в перезимовавших листьях весной было примерно в 1,5 раз ниже, чем в осенний период. Показано также разнообразие мономерного профиля исследуемых ПВ. Рассчитана средняя молекулярная масса ПВ, выделенных из листьев омелы белой, произрастающей на яблоне домашней (Malus domestica Borkh.) и тополе черном (Populus nigra L.), которая составила 2154,43 г/ моль и 1695,19 г/ моль, соответственно.Обнаружено, что наибольшее содержание ПВ (8,02 ± 0,31) наблюдается в листьях V. album, произрастающей на P. nigra, а уроновых кислот (71,34 ± 1,48 %) в листьях V. album, произрастающей на M. domestica. На основе анализа сезонной динамики накопления ПВ, можно сделать вывод, что оптимальным временем для заготовки сырья является осенний период. The article deals with the identification and study of the seasonal dynamics of the accumulation of polysaccharides isolated from the leaves of Viscum album L., as well as the study of some of their physicochemical characteristics. Distinct intraseasonal differences in the accumulation of pectin substances (PS) have been established. The content of HP in overwintered leaves in spring was approximately 1.5 times lower than in autumn. An analysis of the data obtained indicates the diversity of the monomeric profile of the studied HPs. The average molecular weight was calculated, which was 2154.43 g/mol and 1695.19 g/mol for pectin substances isolated from the leaves of Malus domestica Borkh. and Populus nigra L., respectively. It was found that the highest content of PV (8.02 ± 0.31) is observed in the leaves of V. album growing on P. nigra, and uronic acids (71.34 ± 1.48 %) in the leaves of V. album growing on M . domestica. Based on the dynamics of HP accumulation, it can be concluded that the optimal time for harvesting raw materials is the autumn period.

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Выделение И Физико-Химические Свойства Пектиновых Полисахаридов Из Листьев Амаранта

Cited by 3 publications

References 11 publications

Properties and application of betalaine dye isolated from regional beet variety

Properties and application of betalaine dye isolated from regional beet variety

Modern trends in the development of selection of vegetable and melon crops

Polysachrides of Viscum album L.

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