ABSTRACT
Recent years have witnessed increasing public interest in health, well-being, and physical appearance, which have been re™ected in demand not only for nutritional foods but also for cosmetics. Of the various cosmetic products, skin cosmetics have important roles, since protecting and preserving the skin is essential for good health and appearance. Mature skin suffers from essential nutrient de’ciencies (minerals, vitamins, and amino acids), causing slackening, thinning, dull complexion, irregular surface, and dehydration. These effects are attributed to functional alterations in skin, such as increase in transepidermal water loss and decreased production of collagen, elastin, and
17.1 Introduction .......................................................................................................................... 211 17.2 Marine Fishery Products ...................................................................................................... 212 17.3 By-Catch and Seafood Processing Waste ............................................................................. 213 17.4 Ingredients from By-Catch and Processing Waste ............................................................... 214
17.4.1 Collagen ................................................................................................................. 214 17.4.2 Gelatin .................................................................................................................... 216 17.4.3 Bioactive Peptides .................................................................................................. 217 17.4.4 Marine Fish Lipids ................................................................................................. 217 17.4.5 Squalene .................................................................................................................220 17.4.6 Chitin and Chitosan ...............................................................................................220 17.4.7 Glucosamine .......................................................................................................... 222 17.4.8 Chondroitin Sulfate ................................................................................................ 222 17.4.9 Hyaluronic Acid ..................................................................................................... 223 17.4.10 Carotenoids ............................................................................................................ 223 17.4.11 Vitamins and Minerals .......................................................................................... 223 17.4.12 Guanine and Pearl Essence ....................................................................................225
