Вестник МГТУ. 2019, Т. 22, № 3.

1,80 £ 1,60 | 1,40 If 1,20 Е 1,00 0> ’ 3 0,60 а S 0,40 ад 53 0,20 - 0,00 F. vesiculosus ■ 1 в2 вЗ >4 29 18 42 29 12 25 34 10 days 180 days Fucoxanthin 44 15 22 19 42 20 28 10 10 days 180 days Chlorophyll а 1,00 0,90 £о 0,80 ад 0,70 ад S 0,60 e« 0,50 aо 0,40 ЕЛ e о S ад 53 0,30 0,20 0,10 0,00 F. disticus 1 2 ИЗ 36 12 28 24 27 15 31 27 10 days 180 days Fucoxanthin 17 17 51 15 45 23 25 7 10 days 180 days Chlorophyll а £О JM "ад S aо S Ы) 53 0,70 0,60 0,50 0,40 0,30 0,20 0,10 0,00 A. nodosum ■ 1 B2 ВЗ B4 36 39 15 11 27 22 22 28 10 days 180 days Fucoxanthin 44 21 26 9 52 17 22 9 10 days 180 days Chlorophyll а Fig. 1. The content of fucoxanthin and chlorophyll a after 10 and 180 days of storage in extracts from F. vesiculosus, F. distichus, A. nodosum, mg/g DW, with indicating the percentage of pigment output for each extraction stage (1-4) Рис. 1. Содержание фукоксантина и хлорофилла а через 10 и 180 дней в экстрактах из F. vesiculosus, F. distichus, A. nodosum, мг/г абсолютно сухой массы сырья, с указанием процентной доли выхода пигментов для каждого этапа экстрагирования 4 Я 0,80 When determining the content of pigments in 4 obtained extracts from fresh and frozen algae, it was possible to establish interesting patterns. The first extraction with a duration of 5 minutes made it possible to extract 30-40 % of fucoxanthin (in terms of its total content in algae) from the thalli of F. vesiculosus. For F. distichus and A. nodosum, under these conditions, 20-28 % of fucoxanthin was transferred to the extract. Chlorophyll a in these conditions extracted in smaller quantities, namely 10-20 % for all studied in this work members of the Fucaceae. At the subsequent stages of short-term extraction it was possible to isolate 60-70 % of the total fucoxanthin content from both fresh and long-stored algae. The extractability of chlorophyll a depended on the type of raw material and differed for each stage in fresh and frozen samples. Thus, the content of this pigment in F. distichus samples reached 51 % in the second stage of extraction of fresh frozen raw materials, and for long-stored samples a similar value (45 %) was extracted only by exhaustive percolation. Chlorophyll a content in F. vesiculosus and A. nodosum is the lowest for the first short-term extraction (10-20 %) and the highest for exhaustive percolation (42-52 %) regardless of the storage duration of the raw material. Thus, by varying the processing time of each type of raw material it is possible to obtain extracts