Abstract
The polyphenol content in the brown algae of the Barents, White Seas, as well as the water areas of the Northwest Atlantic (the Norwegian Sea, the Faxflow bay of the Atlantic Ocean) located in Russia, Norway, Greenland, and Iceland are compared. Algae of the following species were used for this study: Fucus vesiculosus, Fucus spiralis, Fucus serratus, Ascophyllum nodosum, Fucus evanescens. It was found that the most productive raw materials for the extraction of polyphenolic compounds are brown algae F. vesiculosus, growing in Zavalishin Bay of the Barents Sea (Russia): the highest polyphenol content (14.4%) in the summer of 2019 was noted here. Polyphenols detected in F. vesiculosus in the summer from the White Sea on about. Great burnt (13.3%) (Russia), as well as in the Norwegian Sea, Cape Sydspissen (11.6%) (Norway). The minimum content of polyphenols was found in F. spiralis (0.7% dry mass) on the coast of Iceland (Faxflow bay), a low content of polyphenols was characteristic of all types of algae from this location (0.7–2.4%). Three-way analysis of variance (MANOVA) on the example of three types of algae (F. vesiculosus, F. spiralis, A. nodosum) showed that all the studied factors (place of collection, type of algae, fertile phase) are significant. The most significant factor affecting the accumulation of polyphenols by brown algae is the location of algae growth. The high content of polyphenols in the types of algae we studied from Russian water areas allows us to recommend their use as food and medicinal raw materials, as well as raw materials for biologically active additives.
Highlights
Экспериментальная частьОбъекты исследования: бурые водоросли Fucus vesiculosus Linnaeus 1753, Fucus spiralis Linnaeus 1753, Fucus serratus Linnaeus 1753, Ascophyllum nodosum Linnaeus 1863, Fucus evanescence C.Agargh 1820
Ключевые слова: полифенолы, бурые водоросли, Баренцево море, Белое море, море Баффина, Норвежское море, Атлантический океан, Fucus vesiculosus, Fucus spiralis, Fucus serratus, Fucus evanescence, Ascophyllum nodosum
Antioxidant capacities of phlorotannins extracted from the brown algae Fucus vesiculosus // Agricultural and food chemistry. 2012
Summary
Объекты исследования: бурые водоросли Fucus vesiculosus Linnaeus 1753, Fucus spiralis Linnaeus 1753, Fucus serratus Linnaeus 1753, Ascophyllum nodosum Linnaeus 1863, Fucus evanescence C.Agargh 1820. Для исследования были отобраны образцы водорослей из восьми географических локаций в России, Норвегии, Гренландии и Исландии: Норвежское море, мыс Сюдсписсен Образцы водорослей промывали на месте морской водой, талломы очищали от эпифитов, затем высушивали в помещении при постоянной температуре 25 °С, влажности не более 45%. Одновременно с отбором образцов была определена соленость морской воды с помощью рефрактометра (Kelilong Co., Ltd, Китай) данные представлены в таблице 1. Содержание полифенолов в экстрактах водорослей определяли спектрофотометрически при 750 нм с использованием реагента Фолина-Чокальтеу согласно общепринятой методике [14, 18]. Статистические данные рассчитаны с использованием STATISTICA (система программного обеспечения для анализа данных), версия 10, StatSoft, Inc. Для анализа данных также использовали трехфакторный дисперсионный анализ (MANOVA) для оценки влияния фазы размножения, места обитания, солености на содержание полифенолов в водорослях, уровень значимости α=0.05. Анализ проводился с использованием программного обеспечения NCSS и PASS, версия 5, Number Cruncher Statistical Systems (2005)
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