In recent years, nanoparticles of noble metals such as silver have gained enormous attraction owing to their distinct physical, chemical, and biological properties. the present study, (AgNPs) were synthesized from nitrate (AgNO3) using extracted chitosan reducing agent. The was exoskeleton marine crab Portunus pelagicus. Three different sample solutions prepared 0.02mM AgNO3 in 0.5% (w/v) chito...

The development of chiral stationary phases (CSPs) for liquid chromatography (LC) revolutionized the enantioseparation and, nowadays, different types of CSPs are commercially available. Polysaccharide-based CSPs are one of the most versatile and widely used for both analytical and preparative applications and they are able to resolve several classes of racemates. Phenylcarbamates of amylose and...

Developing bioactive food packaging, capable of extending the shelf life fruits, has received increasing attention in recent years. The present study highlights interest post-harvest treatment for strawberries with chitosan as a preservation solution. Chitosan extraction was carried out from shrimp shells ( Parapenaeus longirostris ), composed chitin, using citric acid during demineralization s...

Chitosan was prepared from crab shell. Different derivatives of chitosan e.g. phosphate, cyanoethyl and carboxymethyl chitosan are prepared. Molecular structure of chitosan and its derivatives was fallowed by infrared spectroscopy. A new band at 1715cm -1 (carboxyl group), at 2253cm -1 (cyano group) and at 1200cm -1 for (c-o-p) in spectra of carboxymethyl chitosan, cyanoethyl chitosan and chito...

The natural product chitosan has been shown to reduce plant disease severity and enhance the efficacy of microbial biocontrol agents in several crops. However, little is known about potential synergisms between biopesticides best use practices apple production. objectives this study were evaluate effect pre-harvest applications alone combination with a commercial biopesticide suppress fungal di...

Cytotoxic activity screening of ethyl acetate fungal extracts derived from the marine sponge Neopetrosia chaliniformis AR-01Muh. Ade Artasasta, Yanwirasti, Akmal Djamaan, Dian Handayani