Physical Chemical and Biological Properties of Wonder Kelp Laminaria

Se-Kwon Kim*'t'1 and Ira Bhatnagar*'*

Contents I. Introduction 86

II. Physical Properties 87

III. Life cycle of Laminaria sp. 88

IV. Chemical Properties 88

V. Biological Properties (Medicinal Applications of Laminaria) 91

A. Alginate 91

B. Fucoidan 92

C. Laminarin 94

D. Cardiolam 94

VI. Concluding Remarks 94 References 95

Abstract Laminaria is a kelp that finds its place in the brown algae family.

It has been an area of study for past many years, and its wonderful biological properties have always attracted medical professionals and researchers to explore more and more from this wonder kelp. The constituents of Laminaria include iodine, potassium, magnesium, calcium and iron. Iodine compounds, TEA-hydroiodide in particular, are great lipolytic agents as they stimulate lipase activity. Laminarins on the other hand are used as a tumor angiogenic blocker.

* Department of Chemistry, Pukyong National University, Busan, Republic of Korea { Marine Bioprocess Research Center, Pukyong National University, Busan, Republic of Korea { Laboratory of Infectious Diseases, Centre for Cellular and Molecular Biology, Hyderabad, India 1 Corresponding author: Se-Kwon Kim, E-mail address: [email protected]

Advances in Food and Nutrition Research, Volume 64 © 2011 Elsevier Inc.

ISSN 1043-4526, DOI: 10.1016/B978-0-12-387669-0.00007-7 Ail rights reserved.

This genus of the kelps is also rich in algin, a high molecular weight polysaccharide that forms viscous colloidal solutions or gels in water leading to the use of kelp derivatives as bulk laxatives. It has great applications in cosmeceutical science, as well as some antibacterial properties have also been assigned to Laminaria. A deeper insight into the physical, biological, and chemical properties of this wonder kelp would lead to further exploitation of Laminaria for medicinal and cosmeceutical purpose.

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