Characteristics of Gelatin from Giant Grouper (Epinephelus Lanceolatus) Skin

Physicochemical and Rheological Properties of White-Cheek Shark (Carcharhinus dussumieri) Skin Gelatin

“…The β chain has a molecular weight of approximately 175 kDa, and the two α-chains were about 127 and 117 kDa, respectively. This is similar to what has been observed for other fish species [1,4,8,11]. In addition to the presence of a thick band corresponding to the β-components proteins, molecular weights higher than β-chains (γ-components) were observed for alkaline-acid gelatin, which may contribute to the different rheological properties.…”

“…The molecular weight distribution of gelatin is commonly influenced by the processing conditions of the material, pretreatment, and the extraction process [1]. However, the role of "impurities" is generally not considered.…”

“…It has become a widely accepted method for fish gelatin extraction over the past decade [9]. However, the variability of the gelatin quality is most likely due in part to the different raw materials used in various studies, the intensity of the treatment, the different properties of the treated substrates, and whether the fish originated from a warm or cold environment [1,2]. In this regard, among fish wastes and by-products, conducting more studies related to gelatin production from tropical water fishes may provide a wider set of applications due to its optimal physical, rheological, and functional properties that are often nearly similar to mammalian gelatins [1,5].…”

“…Gelatin is a soluble bio-macromolecule derived from partial hydrolysis of the fibrous protein collagen contained in the skin, connective tissue, and bones of animals [1]. It is also well-known for its multifunctional properties in food and drug related industrial applications.…”

Molecular structural properties of extracted gelatin from Yak skin as analysed based on molecular weight

“…[2] Therefore, people are eager to find safer sources of collagen including marine animals (fish, jellyfish, marine sponge and squid) and those unpolluted animals. [3][4][5] The Yak (bos grunniens), as a year-round grazing animal, is one kind of the unique livestock in the world, mainly living in the Qinghai-Tibetan Plateau. It was famous with its high altitude, unpolluted natural environment and frequent seasonal variation.…”