Publications by Takuya Asakawa

Publications by authors named "Takuya Asakawa"

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Chemical characterization of the milk oligosaccharides of some Artiodactyla species including giraffe (Giraffa camelopardalis), sitatunga (Tragelaphus spekii), deer (Cervus nippon yesoensis) and water buffalo (Bubalus bubalis).

Yuri Mineguchi Midori Miyoshi Epi Taufik Ayumi Kawamura Takuya Asakawa

Glycoconj J

December 2018

Article Synopsis

- Mammalian milk contains oligosaccharides and lactose, but the amount and type of oligosaccharides can differ across species, especially between carnivores (Arctoidea) and even-toed ungulates (Artiodactyla).
- In Arctoidea, oligosaccharides are more common, while in Artiodactyla, lactose is usually dominant, with specific studies conducted on giraffes, sitatungas, deer, and water buffalo to analyze oligosaccharide variations.
- The study identified various oligosaccharides in the milk of these Artiodactyla species, confirming significant diversity in milk oligosaccharides within this group.

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Identification of sialyl oligosaccharides including an oligosaccharide nucleotide in colostrum of an addax (Addax nasomaculatus) (Subfamily Antelopinae).

Khuukhenbaatar Ganzorig Takuya Asakawa Masashi Sasaki Tadao Saito Isao Suzuki

Anim Sci J

January 2018

Mammalian milk/colostrum usually contains milk oligosaccharides along with the predominant lactose. Although milk oligosaccharides of a variety of Bovidae species including cow, sheep and goat have been characterized, those of the addax, an Antelopinae species of the Bovidae, have not as yet been clarified. In this study, several sialyl oligosaccharides were purified from a sample of addax colostrum and characterized as follows: Neu5Ac(α2-8)Neu5Ac(α2-3)Gal(β1-4)Glc, Neu5Gc(α2-8)Neu5Gc(α2-3)Gal(β1-4)Glc, Neu5Ac(α2-3)Gal(β1-4)Glc, Neu5Ac(α2-6)Gal(β1-4)GlcNAc, Neu5Gc(α2-3)Gal(β1-4)Glc, Neu5Gc(α2-6)Gal(β1-4)Glc, Neu5Gc(α2-6)Gal(β1-4)GlcNAc.

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