Open Glycoscience


ISSN: 1875-3981 ― Volume 5, 2012

Bovine Milk Whey for Preparation of Natural N-glycans: Structural and Quantitative Analysis

Open Glycoscience, 2012, 5: 41-50

Nongluk Sriwilaijaroen, Sachiko Kondo, Hirokazu Yagi, Hiroaki Hiramatsu, Shin-ichi Nakakita, Keita Yamada, Hiromi Ito, Jun Hirabayashi, Hisashi Narimatsu, Koichi Kato, Yasuo Suzuki

Department of Biomedical Sciences, College of Life and Health Sciences, and Health Science Hills, Chubu University, 1200 Matsumoto-cho, Kasugai-shi, Aichi, 487-8501, Japan

Electronic publication date 4/5/2012
[DOI: 10.2174/1875398101205010041]

CrossRef Citations:

Article Metrics:

Geographical View
Total Statistics:

Abstract HTML Views: 236
PDF Downloads: 126
Total Views/Downloads: 362

Unique Statistics:

Abstract HTML Views: 150
PDF Downloads: 96
Total Views/Downloads: 246


Glycans exhibit enormous structural diversity in nature and are of particular importance for self-cell survival and are often targeted by microbes. In this study, N-glycans (374.9 pmol/mg in dry delipidated weight) were enzymatical-ly released from bovine milk whey protein concentrate, and they were isolated and analyzed by a two-dimensional HPLC mapping technique and/or by MALDI-TOF mass spectrometry. A total of 39 identified N-glycans are bi- and tri-antennary sugar chains terminated with multiple mannose residues (Man-Man; molar ratio of 39.5%), N-acetyl-lactosamine (Lac-NAc; Galβ1-4GlcNAc; molar ratio of 17.9), di-N-acetylated lactosamine (LacdiNAc; GalNAcβ1-4GlcNAc; molar ratio of 22.8), GlcNAc (molar ratio of 7.05), Neu5Acα2-6Galβ1-4GlcNAc (molar ratio of 5.3), Neu5Acα2-6GalNAcβ1-4GlcNAc (molar ratio of 1.25), Neu5Gcα2-6Galβ1-4GlcNAc (molar ratio of 2.5), and Neu5Gcα2-3Galβ1-4GlcNAc (molar ratio of 0.25), in which some are fucosylated on the proximal core GlcNAc1-N-Asn. Terminal Neu5Acα2-3Gal/GalNAc and Neu5Gcα2-3/α2-6GalNAc were not detected in the bovine whey protein concentrate. Among the 39 glycans, GalNAcβ-4GlcNAcβ1-2Manα1-3(GalNAcβ1-4GlcNAcβ1-2Manα1-6)Manβ1-4GlcNAcβ1-4GlcNAcβ- and Manα1-2Manα1-2Manα1-3(Manα1-2Manα1-3(Manα1-2Manα1-6)Manα1-6)Manβ1-4GlcNAcβ1-4GlcNAcβ4GlcNAcβ- were the most abundant types found with molar ratios of 11.3 and 10, respectively. Elucidation of glycan molecular structures will lead to an understanding of their biological roles and functions. Whey contains a variety of glycans and is inexpensive, and it is thus considered to be source of glycans for array glycan libraries to be used for investigations of specific glycan-protein interactions, enabling not only analysis of biological roles of the glycan-binding proteins but also development of molecules affecting these in-teractions. Furthermore, these natural glycans may have therapeutic value in prevention and inhibition of infection of mi-crobes that recognize them.

Download PDF


"Open access will revolutionize 21st century knowledge work and accelerate the diffusion of ideas and evidence that support just in time learning and the evolution of thinking in a number of disciplines."

Daniel Pesut
(Indiana University School of Nursing, USA)

"It is important that students and researchers from all over the world can have easy access to relevant, high-standard and timely scientific information. This is exactly what Open Access Journals provide and this is the reason why I support this endeavor."

Jacques Descotes
(Centre Antipoison-Centre de Pharmacovigilance, France)

"Publishing research articles is the key for future scientific progress. Open Access publishing is therefore of utmost importance for wider dissemination of information, and will help serving the best interest of the scientific community."

Patrice Talaga
(UCB S.A., Belgium)

"Open access journals are a novel concept in the medical literature. They offer accessible information to a wide variety of individuals, including physicians, medical students, clinical investigators, and the general public. They are an outstanding source of medical and scientific information."

Jeffrey M. Weinberg
(St. Luke's-Roosevelt Hospital Center, USA)

"Open access journals are extremely useful for graduate students, investigators and all other interested persons to read important scientific articles and subscribe scientific journals. Indeed, the research articles span a wide range of area and of high quality. This is specially a must for researchers belonging to institutions with limited library facility and funding to subscribe scientific journals."

Debomoy K. Lahiri
(Indiana University School of Medicine, USA)

"Open access journals represent a major break-through in publishing. They provide easy access to the latest research on a wide variety of issues. Relevant and timely articles are made available in a fraction of the time taken by more conventional publishers. Articles are of uniformly high quality and written by the world's leading authorities."

Robert Looney
(Naval Postgraduate School, USA)

"Open access journals have transformed the way scientific data is published and disseminated: particularly, whilst ensuring a high quality standard and transparency in the editorial process, they have increased the access to the scientific literature by those researchers that have limited library support or that are working on small budgets."

Richard Reithinger
(Westat, USA)

"Not only do open access journals greatly improve the access to high quality information for scientists in the developing world, it also provides extra exposure for our papers."

J. Ferwerda
(University of Oxford, UK)

"Open Access 'Chemistry' Journals allow the dissemination of knowledge at your finger tips without paying for the scientific content."

Sean L. Kitson
(Almac Sciences, Northern Ireland)

"In principle, all scientific journals should have open access, as should be science itself. Open access journals are very helpful for students, researchers and the general public including people from institutions which do not have library or cannot afford to subscribe scientific journals. The articles are high standard and cover a wide area."

Hubert Wolterbeek
(Delft University of Technology, The Netherlands)

"The widest possible diffusion of information is critical for the advancement of science. In this perspective, open access journals are instrumental in fostering researches and achievements."

Alessandro Laviano
(Sapienza - University of Rome, Italy)

"Open access journals are very useful for all scientists as they can have quick information in the different fields of science."

Philippe Hernigou
(Paris University, France)

"There are many scientists who can not afford the rather expensive subscriptions to scientific journals. Open access journals offer a good alternative for free access to good quality scientific information."

Fidel Toldrá
(Instituto de Agroquimica y Tecnologia de Alimentos, Spain)

"Open access journals have become a fundamental tool for students, researchers, patients and the general public. Many people from institutions which do not have library or cannot afford to subscribe scientific journals benefit of them on a daily basis. The articles are among the best and cover most scientific areas."

M. Bendandi
(University Clinic of Navarre, Spain)

"These journals provide researchers with a platform for rapid, open access scientific communication. The articles are of high quality and broad scope."

Peter Chiba
(University of Vienna, Austria)

"Open access journals are probably one of the most important contributions to promote and diffuse science worldwide."

Jaime Sampaio
(University of Trás-os-Montes e Alto Douro, Portugal)

"Open access journals make up a new and rather revolutionary way to scientific publication. This option opens several quite interesting possibilities to disseminate openly and freely new knowledge and even to facilitate interpersonal communication among scientists."

Eduardo A. Castro
(INIFTA, Argentina)

"Open access journals are freely available online throughout the world, for you to read, download, copy, distribute, and use. The articles published in the open access journals are high quality and cover a wide range of fields."

Kenji Hashimoto
(Chiba University, Japan)

"Open Access journals offer an innovative and efficient way of publication for academics and professionals in a wide range of disciplines. The papers published are of high quality after rigorous peer review and they are Indexed in: major international databases. I read Open Access journals to keep abreast of the recent development in my field of study."

Daniel Shek
(Chinese University of Hong Kong, Hong Kong)

"It is a modern trend for publishers to establish open access journals. Researchers, faculty members, and students will be greatly benefited by the new journals of Bentham Science Publishers Ltd. in this category."

Jih Ru Hwu
(National Central University, Taiwan)

Browse Contents

Webmaster Contact:
Copyright © 2019 Bentham Open