Extraction and Characterization of Gelatin: A Functional Biopolymer

Abstract

Objective: Gelatin is widely used biopolymer in various industries due to its excellent biocompatibility, biodegradability properties. In the present study, gelatin was extracted from fish wastes, as an alternative source.Methods: This biopolymer was extracted from the scales of freshwater fish, Labeo rohita. After extraction, the proximate analysis and physicochemical analysis of the fish scale gelatin were carried out. This functional polymer was also characterized using different analytical methods, such as UV-vis spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD) for the evaluation of crystalline and surface morphology, and fourier transform infrared spectroscopy (FTIR) for structural determination. Results:The scales of L. rohita yield 24% (dry weight basis) of gelatin, indicating this fish species as potential source of gelatin. The proximate analysis determined was low moisture content (4.2%), ash (1.4%) and high protein (90%) content. The result of the study confirms the effectiveness of extraction method used. Conclusion:The fish scales of L. rohita are found to be a sustainable and renewable source of gelatin with desirable functionalities and it is the best alternative for mammalian gelatin in food and other industries.

Non-destructive Analyses of 16th Century Documents

“…The 222 nm absorption band is partially produced also by the gelatine size of the paper [24]. On the sample 4A the absorption band from 222 nm is presented as a shoulder, which is an indication of modified gelatine, in concordance with FTIR spectra of that sample.…”

Sodium Alginate/Gelatin Microbeads-Intercalated With Kaolin Nanoclay for Emerging Drug Delivery in Wilson’s Disease

“…Gelatin (GE) is a natural protein material obtained by hydrolytic degradation of naturally occurring tropocollagen rod (a triple helical structure) which is a fundamental molecular unit of collagen [25,26]. In the recent decades it has been used in food and pharmaceutical industries due to its non-toxic, anti-carcinogenic, biocompatible, biodegradable, and also attractive starting material as a drug carrier due to its unique gelling properties [27].…”

Rheological and structural properties of Hemiramphus far skin gelatin: Potential use as an active fish coating agent

“…(Jridi, Lassoued, Nasri, Ayadi & Nasri, 2014). Gelatin has a wide range of applications, in pharmaceutical and cosmetic industries, as food additive, biopolymer, and photographic agent (Das, Suguna, Prasad, Vijaylakshmi, & Renuka, 2017). In addition, gelatin is known by its film-forming capacity giving transparent films, which make it an excellent edible film component that can fulfill commercial packaging needs (Arvanitoyannis, 2002;Hosseini & Gómez-Guillén, 2018).…”