Enzymatic extraction and characterisation of a thermostable collagen from swim bladder of rohu (Labeo rohita).

Background: The fish swim bladder is considered as a potential source of realistic collagen. Currently, processing of the Indian major carp rohu (Labeo rohita) generates an enormous quantity of non-edible by-products, including swim bladders, which are discarded as waste with no commercial value. In the present study, collagen was prepared from rohu swim bladder and its physicochemical and fibril-forming capacities were assessed.

Antioxidant and neuroprotective potential of chitooligomers in Caenorhabditis elegans exposed to Monocrotophos.

The objectives of this investigation were to establish the propensity of the chitooligomers (COS) to ameliorate neurodegeneration and oxidative stress in Caenorhabditis elegans induced by an organophosphorus insecticide, Monocrotophos (MCP). COS was prepared from α-chitosan by the enzymatic method using chitosanase and characterized by HPLC and electron spray ionization-TOF-(ESI-TOF)-MS. We exposed age synchronized L4 C.

Comparative study on characteristics and in vitro fibril formation ability of acid and pepsin soluble collagen from the skin of catla (Catla catla) and rohu (Labeo rohita).

Catla (Catla catla) and Rohu (Labeo rohita) are the major carp fish produced by freshwater aquaculture in India. Processing of these carp fish generates potentially large quantities of by-products (waste) from non-edible fish parts by fish-processing factories and fish shops. The paper focuses on the extraction of the acid soluble collagen (ASC) and pepsin soluble collagen (PSC) from the skin of carp fish and subsequently their characteristics and in vitro fibril-forming ability.

Application of chitosan for improvement of quality and shelf life of table eggs under tropical room conditions.

The current investigation was conducted to study the effectiveness of chitosan coating in preserving the internal quality of table eggs stored under tropical room conditions of 32 ± 1 °C and 60-70 % r. h. Internal, physical and microbiological quality of eggs coated with chitosan was evaluated during 5-week storage at different temperature (22 ± 1 and 32 ± 1 °C).

Optimization of conditions for isolation of high quality chitin from shrimp processing raw byproducts using response surface methodology and its characterization.

Chitin is one of the most abundant bioactive biopolymer on earth. It is commercially extracted from seafood processing crustacean shell byproducts by harsh thermochemical treatments. The extraction conditions, the source and pretreatment of raw material significantly affect its quality and bioactivity.