Identification of Carotenoids in the Freshwater Shellfish Unio douglasiae nipponensis, Anodonta lauta, Cipangopaludina chinensis laeta, and Semisulcospira libertina

Maoka, Takashi; Ochi, Junko; Mori, Miho; Sakagami, Yoshikazu

doi:10.5650/jos.61.69

Cited by 26 publications

(19 citation statements)

References 17 publications

(10 reference statements)

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“…This shows that hydroxylation at C-3 and/or C-3′ of 4-keto and/or 4′-keto β-end group of carotenoid in sea angels is stereo-selective to form (3 S ,3 ′S )-astaxanthin. This stereo-selective hydroxylation has also been reported in other snails: Fushinus perplexus , F. perplexus ferrugineus , F. forceps [11,12], Cipangopaludina chinensis laeta , Semisulcospia libertina [13], and Pomacea canaliculata [14]. …”

Section: Discussionsupporting

confidence: 72%

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Carotenoids of Sea Angels Clione limacina and Paedoclione doliiformis from the Perspective of the Food Chain

2014

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Sea angels, Clione limacina and Paedoclione doliiformis, are small, floating sea slugs belonging to Gastropoda, and their gonads are a bright orange-red color. Sea angels feed exclusively on a small herbivorous sea snail, Limacina helicina. Carotenoids in C. limacina, P. doliiformis, and L. helicina were investigated for comparative biochemical points of view. β-Carotene, zeaxanthin, and diatoxanthin were found to be major carotenoids in L. helicina. L. helicina accumulated dietary algal carotenoids without modification. On the other hand, keto-carotenoids, such as pectenolone, 7,8-didehydroastaxanthin, and adonixanthin were identified as major carotenoids in the sea angels C. limacina and P. doliiformis. Sea angels oxidatively metabolize dietary carotenoids and accumulate them in their gonads. Carotenoids in the gonads of sea angels might protect against oxidative stress and enhance reproduction.

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Section: Discussionsupporting

confidence: 72%

“…ESI-TOF MS: m/z 597.3942 [M + H] + (calcd for C 40 H 53 O 4 , 597.3944); UV-VIS 472 nm, Chiral HPLC [13] revealed that astaxanthin fraction in sea angels was consisted of only (3 S ,3′ S ) optical isomers.…”

Section: Methodsmentioning

confidence: 99%

Carotenoids of Sea Angels Clione limacina and Paedoclione doliiformis from the Perspective of the Food Chain

2014

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“…It was found to be impractical to elucidate the molecular structures of various unidentied carotenoids in the analyte by means of UV and PDA, spectral interferences occurring in UV-Vis can be overpowered by using MS, 212 hence molecular structure of carotenoids are elucidated by using molecular mass and fragmentation patterns obtained via MS. Carotenoids having similar molecular mass can be differentiated on the basis of different fragmentation patterns. 218 Rearrangement and degradation of the structures of carotenoids can be reduced by FAB ionization. 215 Samples can be analysed directly without preparation of sample or chromatographic separation via ASAP, Raman spectroscopy and MALDI-TOF-MS as well.…”

Section: Uplc-msmentioning

confidence: 99%

Green extraction methods and environmental applications of carotenoids-a review

Singh

Ahmad

2015

RSC Adv.

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This review covers and discusses various aspects of carotenoids including their chemistry, classification, biosynthesis, extraction methods (conventional and non-conventional), analytical techniques and biological roles in living beings. Carotenoids play a very crucial role in human health through foods, cosmetics, nutraceuticals and pharmaceuticals. Among carotenoids, lycopene acts as best antioxidant.Various extraction methods have been employed for extraction of carotenoids: solvent extraction, soxhlet extraction, centrifugation and non-conventional methods of extraction such as ultrasoundassisted, microwave-assisted, enzymatic and the innovative technique supercritical carbondioxide (SC-CO 2 ) extraction. The green and environmentally friendly technique for extraction of carotenoids is SC-CO 2 extraction which extracts pure compound in high yield without the use of harmful organic solvents, it operates at lower temperature so it is useful for extraction of thermolabile compounds. This technique uses SC-CO 2 as green solvent and other solvents as modifiers which are generally recognized as safe (GRAS) solvents. Green technology is the need of present time in order to keep environment healthy, pollution free and sustainable for coming generation. Present review includes several analytical techniques used to identify and quantify carotenoids are: thin layer chromatography (TLC), high performance thin layer chromatography (HPTLC), high performance liquid chromatography (HPLC), liquid chromatography-mass spectrometry (LC-MS), nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FTIR), ultra performance liquid chromatography-tandem mass spectrometer (UPLC-MS), UV-Vis (Ultraviolet-Visible) spectrophotometry; out of these, NMR and FTIR have been explored the least for carotenoid analysis.

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“…It seems likely that the polyenes in molluscan shell pigments are based on carotenoid precursors, which are known to colour soft tissues and are correlated with colour in shells . As most animals are incapable of producing carotenoids de novo, molluscan carotenoids are likely to be dietary in origin, whereas some modifications may be genetically controlled .…”

Section: Resultsmentioning

confidence: 99%

Colour in bivalve shells: Using resonance Raman spectroscopy to compare pigments at different phylogenetic levels

Wade

Pugh

Nightingale

et al. 2019

J Raman Spectroscopy

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Several studies have suggested that shell colour may be phylogenetically distributed within the phylum Mollusca, but this pattern is confounded by our ignorance of the homology of colour and lack of understanding about the identity of most molluscan pigments. We use resonance Raman spectroscopy to address this problem by examining bivalve pigments producing a range of colours and compare spectra from taxa at different phylogenetic levels. The spectra of most shell pigments exhibited a skeletal signature typical of partially methylated polyenes, possibly modified carotenoids, with the strongest peaks occurring between 1,501–1,540 cm−1 and 1,117–1,144 cm−1 due to the C═C (ν1) and C–C (ν2) stretching modes, respectively. Neither pigment class nor mineral structure differentiated Imparidentia and Pteriomorphia. Spectral acquisitions for purple pigments for two species of Asaphis suggest that identical or nearly identical pigments are shared within this genus, and some red pigments from distantly related species have similar spectra. Conversely, two species with brown shells have distinctly different pigments, highlighting the difficulty in determining the homology of colour even within a single class of pigments. Curiously, we were unable to detect any Raman activity for green‐coloured shell or pigment peaks for the yellow area of Codakia paytenorum, suggesting that these colours are due to structural elements or a pigment that is quite different from those observed in other taxa examined to date. Our results are consistent with the idea that classes of pigments are evolutionarily ancient but heritable modifications may be specific to clades.

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Identification of Carotenoids in the Freshwater Shellfish Unio douglasiae nipponensis, Anodonta lauta, Cipangopaludina chinensis laeta, and Semisulcospira libertina

Cited by 26 publications

References 17 publications

Carotenoids of Sea Angels Clione limacina and Paedoclione doliiformis from the Perspective of the Food Chain

Carotenoids of Sea Angels Clione limacina and Paedoclione doliiformis from the Perspective of the Food Chain

Green extraction methods and environmental applications of carotenoids-a review

Colour in bivalve shells: Using resonance Raman spectroscopy to compare pigments at different phylogenetic levels

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