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Marine bacteria produce many bioactive compounds, including carotenoids. However, the quality of bacterium carotenoids is relatively unknown. Therefore, in this study, a novel carotenoids-producing bacterium Brevundimonas scallop Zheng & Liu was isolated from Chlamys nobilis. The genome of the isolate was analyzed, carotenoid compounds were screened using HPLC-MS and the carotenoid production in B. scallop was monitored. The results revealed that the genome of B. scallop contained a carotenoid synthesis gene cluster, which involved in astaxanthin and hydroxy-astaxanthin biosynthesis. The 2,2'-dihydroxy-astaxanthin was the major carotenoid produced by B. scallop. The optimum culture condition for the highest carotenoids production (1303.62 ± 61.06 µg/g dry cells) for B. scallop was at temperature and salinity of 20 °C and 3% salt, respectively, in 10 g/L glucose as carbon source. The results showed the B. scallop is a new carotenoids resource in marine bivalve, which has an excellent antioxidative activity and potential industrial use.
This article was published in the following journal.
Name: Food chemistry
Heat shock proteins (HSPs) are a family of conserved proteins that enhance stress resistance and protect cells from external damage. In the present study, the full-length HSP70 cDNA from the noble sca...
The solute carriers (SLCs) are membrane proteins that transport many endogenous and exogenous substances such as xenobiotic toxins. Bivalve mollusks, mainly feeding on microalgae, show marked capacity...
Inspired by a scallop's strong underwater propulsion mechanism, we designed and prototyped a scallop robot capable of clapping and swimming. In this work, an artificial velum was used to work as a che...
The tissues of marine invertebrates are colonized by species-rich microbial communities. The dysbiosis of host's microbiota is tightly associated with the invertebrate diseases. Yesso scallop (Patinop...
The Acinetobacter baumanni J1 isolated from surface water of the Eastern Pacific Ocean, demonstrated significant algicidal activity on the algae Alexandrium tamarense. Interestingly, this strain showe...
The primary objectives of this study are to compare the serum and skin concentrations of beta-carotene, lutein, and lycopene in preterm infants fed preterm formulas with mixed carotenoids ...
The goal of the study is to determine if mamey sapote fruit, rich in rare potentially provitamin A keto-carotenoids, is a good source of vitamin A in humans. Furthermore, it will help to c...
To assess the efficacy and safety of a Marine Lipid Oil Concentrate formulation on inflammatory biomarkers and overall well-being in male and female subjects who are overweight to mildly o...
The aim of this study is to investigate the potential effect of a marine protein hydrolysate (MPH) supplement before a meal on postprandial glucose tolerance in healthy subjects, to achiev...
This study will examine the the efficiency fo absorption of major plant pigments, carotenoids, (lutein, beta-carotene and lycopene)and will measure the biological functions of carotenoids ...
A species of bacterium of the family NOCARDIACEAE, producing pulmonary infections in man.
The phenomenon by which a temperate phage incorporates itself into the DNA of a bacterial host, establishing a kind of symbiotic relation between PROPHAGE and bacterium which results in the perpetuation of the prophage in all the descendants of the bacterium. Upon induction (VIRUS ACTIVATION) by various agents, such as ultraviolet radiation, the phage is released, which then becomes virulent and lyses the bacterium.
A rod-shaped bacterium surrounded by a sheath-like structure which protrudes balloon-like beyond the ends of the cell. It is thermophilic, with growth occurring at temperatures as high as 90 degrees C. It is isolated from geothermally heated marine sediments or hot springs. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
The transfer of bacterial DNA by phages from an infected bacterium to another bacterium. This also refers to the transfer of genes into eukaryotic cells by viruses. This naturally occurring process is routinely employed as a GENE TRANSFER TECHNIQUE.
Oxygenated forms of carotenoids. They are usually derived from alpha and beta carotene.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...
Multiple Sclerosis MS
Multiple sclerosis (MS) is the most common disabling neurological condition affecting 100,000 young adults in the UK. The condition results from autoimmune damage to myelin, causing interference in nerve signaling. Symptoms experienced depend on the pa...