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Extraction and purification of biopolymers from marine origin sources envisagin...
Carvalho, Duarte Nuno; Gonçalves, Cristiana; Sousa, Rita Alexandra Oliveira; Reis, R. L.; Oliveira, Joaquim M.; Silva, Tiago H.Biopolymers are a versatile and diverse class of materials that has won high interest due to their potential application in several sectors of the economy, such as cosmetics, medical materials/devices, and food additives. In the last years, the search for these compounds has explored a wider range of marine organisms that have proven to be a great alternative to mammal sources for these applications and benefit...
Structure and composition of the cuticle of the goose barnacle Pollicipes polli...
Almeida, Mariana A.; Fernandes, Emanuel Mouta; Marques, Ana Catarina Fernandes; Lobo, Flávia Cristina Marques; Sousa, Rita Alexandra OliveiraArthropods, the largest animal phylum, including insects, spiders and crustaceans, are characterized by their bodies being covered primarily in chitin. Besides being a source of this biopolymer, crustaceans have also attracted attention from biotechnology given their cuticlesâ remarkable and diverse mechanical properties. The goose barnacle, Pollicipes pollicipes, is a sessile crustacean characterized by their ...
Potential of atlantic codfish (Gadus morhua) skin collagen for skincare biomate...
Rodrigues, Cristina V.; Sousa, Rita Alexandra Oliveira; Carvalho, Ana Cristina Pontes; Alves, Ana Luísa Silva; Marques, Ana Catarina FernandesCollagen is the major structural protein in extracellular matrix present in connective tissues, including skin, being considered a promising material for skin regeneration. Marine organisms have been attracting interest amongst the industry as an alternative collagen source. In the present work, Atlantic codfish skin collagen was analyzed, to evaluate its potential for skincare. The collagen was extracted from ...
Adhesive and biodegradable membranes made of sustainable catechol-functionalize...
Correia, Catia; Sousa, Rita Alexandra Oliveira; Vale, A. Catarina; Peixoto, Daniela; Silva, Tiago H.; Reis, R. L.; Pashkuleva, I.; Alves, N. M.We describe bioadhesive membranes developed from marine renewable biomaterials, namely chitosan and collagen extracted from fish skins. Collagen was functionalized with catechol groups (Coll-Cat) to provide the membranes with superior adhesive properties in a wet environment and blended with chitosan to improve the mechanical properties. The blended membranes were compared to chitosan and chitosan blended with ...
Collagen from Atlantic cod (Gadus morhua) skins extracted using CO2 acidified w...
Sousa, Rita Alexandra Oliveira; Martins, Eva; Carvalho, Duarte Nuno; Alves, Ana Luísa Silva; Oliveira, Ana Catarina Freitas Salazar; Duarte, Ana Rita C.The extraction of collagen from fish skins is being proposed as strategy for valorization of marine origin by-products, being a sustainable alternative to mammal collagen. The method commonly uses solutions of organic acids, but new methodologies are arising, aiming to improve process yields and/or the properties of the resulting products. In this work, skins removed from salt brine Atlantic cod (Gadus morhua) ...