نتایج جستجو برای: chitin crab shells
تعداد نتایج: 28360 فیلتر نتایج به سال:
Gastropods are known for the presence of calcareous shells, even after their death. The diversity this resource can be reflected in local living gastropods. These shells used by hermit crabs as protection and against desiccation. Coastal lagoons biodiversity hotspots site recruitment continent-sea connectivity, is sometimes altered connectivity events with adjacent areas. Therefore, we sought t...
Microwaves have been used in various organic synthesis applications. The use of microwaves provides many advantages, including relatively short start-up and heating times, energy efficiency process costs, easy precise control, selective heating, better final product quality, improved dry material quality. were this study to convert chitin into chitosan determine the effect deacetylation time on...
Chitosan is a naturally occurring polymer derived from the deacetylation of chitin, which an abundant carbohydrate found mainly in shells various marine and terrestrial (micro)organisms. has been extensively used to construct nanoparticles (NPs), are biocompatible, biodegradable, non-toxic, easy prepare, can function as effective drug delivery systems. Moreover, chitosan NPs have employed gene ...
Ebonyi River basin of south east Nigeria is home to the freshwater crab Potamon ebonyicum, which are consumed indiscriminately by inhabitants and tourists. Bulk of the crab meat is obtained by crabbing. A preliminary survey of pathogenic bacteria associated with vulnerable morphological part of the crab species was carried out in the basin. Bacteria were isolated from abdominal flaps of the mal...
Crop show morphological and physiological responses to microbial, physical or chemical factors which are known as elicitors. Chitosan is a natural biopolymer modified from chitin, which is the main structural component of squid pens, cell walls of some fungi and crab shells. Water stress is one of the most important abiotic stresses that affects plant physiological and morphological traits. In ...
This work explored the technical feasibility of using crab shell (CS) as a promising, low-cost biosorbent to individually and simultaneously remove Zn2+ Ni2+ from aqueous solutions. It was found that in both monometallic bimetallic systems, biosorption by CS strongly dependent on solution pH, with optimum occurring at pH 6.0 for heavy metals. The obtained isotherms onto systems demonstrated has...
Animals avoid predator attack in different ways; some carry defensive structures to reduce predation, with the classic example being hermit crabs and their use of a mollusc shell as portable refugium. During selection, various characteristics are investigated by crab determine suitability. Here we consider role visual cues. Previous research suggests that more likely initially choose conspicuou...
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