Mycosporine-like Amino Acids from Red Alga Dulse (Devaleraea inkyuleei) : Monthly Variation and Improvement in Extraction

Yamamoto, Ryuya; Takizawa, Koki; Miyabe, Yoshikatsu; Mune Mune, Martin Alain; Kishimura, Hideki; Kumagai, Yuya

Mycosporine-like Amino Acids from Red Alga Dulse (Devaleraea inkyuleei) : Monthly Variation and Improvement in Extraction

Yamamoto, Ryuya; Takizawa, Koki; Miyabe, Yoshikatsu et al.

Phycology, 2023, 3(3), 394-404

Permalink : https://hdl.handle.net/2115/90365

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アクセス権	open access
URI	https://hdl.handle.net/2115/90365
タイトル	Mycosporine-like Amino Acids from Red Alga Dulse (Devaleraea inkyuleei) : Monthly Variation and Improvement in Extraction
著者	Yamamoto, Ryuya ; Takizawa, Koki ; Miyabe, Yoshikatsu ; Mune Mune, Martin Alain ; Kishimura, Hideki ; Kumagai, Yuya
著者名 Yamamoto, Ryuya
著者名 Takizawa, Koki
著者名 Miyabe, Yoshikatsu
著者名 Mune Mune, Martin Alain
e-Rad_Researcher 50204855 著者名 Kishimura, Hideki
e-Rad_Researcher 00589997 著者名 Kumagai, Yuya
言語	英語
キーワード	red alga
	dulse
	mycosporine-like amino acids
	monthly variation
	water-soluble protein
	phycoerythrin
	floridean starch
	xylan
	Usujiri Hokkaido
発行日	2023-09-07
出版者	MDPI
収録物名	Phycology
巻(号)	3(3)
ページ	394-404
抄録	Mycosporine-like amino acids (MAAs) are natural UV-absorbing compounds found inmicroalgae and macroalgae. The content of MAAs in algae varies with the seasons and environ-mental factors. Red alga dulse in Usujiri (Hokkaido, Japan) is an underutilized resource. Therefore,we investigated the amount of MAAs in Usujiri dulse in 2022 to clarify the suitable months forMAA extraction. In addition, we also evaluated the extraction method focusing on the extractionvolume. MAAs were prepared via the 20 volumes of 25% ethanol extraction method and detectedvia HPLC. The results showed that the amount of MAAs on 25 March 2022 showed the highestvalue ( 40.4 μmol/g DW) among the samples from 24 January to 13 May. The tendency of suitablesamples for MAA preparation corresponded to the term from mid-February to early April, whichwas the same as the previous three years. Although the surveys from 2019-2021 were performed byusing the successive water-methanol method, it was found that the improved method also reflectedthe monthly variation in MAAs. The extraction of MAAs was performed via 20 or 40 volumes of 25% ethanol at 4 ℃ for 24 h. The amount of MAAs with 40 volumes of 25% ethanol extractionincreased 1.3-fold compared to that with 20 volumes of 25% ethanol extraction. These data are usefulinformation for valuable compound extraction from Usujiri dulse.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
PISSN	2673-9410
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.3390/phycology3030026