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High-performance liquid chromatography for the characterization of carotenoids in the new sweet orange (Earlygold) grown in Florida, USA

Identifieur interne : 001036 ( Istex/Corpus ); précédent : 001035; suivant : 001037

High-performance liquid chromatography for the characterization of carotenoids in the new sweet orange (Earlygold) grown in Florida, USA

Auteurs : H. S. Lee ; W. S. Castle ; G. A. Coates

Source :

RBID : ISTEX:E6C4566431EB8BFBE40B9FEB30E075762A24D235

Abstract

High-performance liquid chromatography with photodiode array detection was developed for the separation and identification of carotenoids from a new sweet orange, Earlygold. Carotenoid pigments were extracted using hexane–acetone–ethanol and saponified using 10% methanolic potassium hydroxide. More than 25 carotenoid pigments were separated within 40 min using a ternary gradient (acetonitrile–methanol, methyl tert.-butyl ether and water) elution on a C30 reversed-phase column. The carotenoid pattern of Earlygold was generally similar to the early season Hamlin but with some quantitative differences, especially with violaxanthin. Major carotenoids including violaxanthin, lutein, β-cryptoxanthin, antheraxanthin, luteoxanthin, zeaxanthin, β-carotene, and α-carotene were identified based on on-line spectral data obtained by a photodiode array detector, and comparison to the spectra of the standards and reported values. A numerical notation, the ratio of the peak heights between absorption bands, was also calculated to compare to the literature values.

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DOI: 10.1016/S0021-9673(00)01029-3

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ISTEX:E6C4566431EB8BFBE40B9FEB30E075762A24D235

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<note type="content">Fig. 1: RP-HPLC chromatogram for carotenoid in Earlygold orange juice (mid-January, 1997–1998 season). YMC C30 Carotenoid column (4.6×150 mm, 3 μm). Mobile phases are MeCN–MeOH (75:25), MTBE and water. The mobile phase contained 0.01% BHT and 0.05% TEA as modifiers. Detection at 450 nm. See Table 1 for identification.</note>
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<abstract lang="en">High-performance liquid chromatography with photodiode array detection was developed for the separation and identification of carotenoids from a new sweet orange, Earlygold. Carotenoid pigments were extracted using hexane–acetone–ethanol and saponified using 10% methanolic potassium hydroxide. More than 25 carotenoid pigments were separated within 40 min using a ternary gradient (acetonitrile–methanol, methyl tert.-butyl ether and water) elution on a C30 reversed-phase column. The carotenoid pattern of Earlygold was generally similar to the early season Hamlin but with some quantitative differences, especially with violaxanthin. Major carotenoids including violaxanthin, lutein, β-cryptoxanthin, antheraxanthin, luteoxanthin, zeaxanthin, β-carotene, and α-carotene were identified based on on-line spectral data obtained by a photodiode array detector, and comparison to the spectra of the standards and reported values. A numerical notation, the ratio of the peak heights between absorption bands, was also calculated to compare to the literature values.</abstract>
<note type="content">Fig. 1: RP-HPLC chromatogram for carotenoid in Earlygold orange juice (mid-January, 1997–1998 season). YMC C30 Carotenoid column (4.6×150 mm, 3 μm). Mobile phases are MeCN–MeOH (75:25), MTBE and water. The mobile phase contained 0.01% BHT and 0.05% TEA as modifiers. Detection at 450 nm. See Table 1 for identification.</note>
<note type="content">Fig. 2: Spectral fine structure (as %III/II) of violaxanthin.</note>
<note type="content">Table 1: Chromatographic and spectroscopic characteristics of Earlygold orange juice carotenoidsa</note>
<subject>
<genre>Keywords</genre>
<topic>Fruit juices</topic>
<topic>Food analysis</topic>
</subject>
<subject>
<genre>Keywords</genre>
<topic>Carotenoids</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Journal of Chromatography A</title>
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<title>CHROMA</title>
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<name type="conference">
<namePart>International Symposium on High Performance Liquid Phase Separations and Related Techniques. Part I, Seattle, WA, USA</namePart>
<namePart>HPLC 2000 Part 1 S.I.</namePart>
<namePart type="date">20000624</namePart>
<namePart type="date">20000630</namePart>
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<name type="personal">
<namePart>Edward S. Yeung</namePart>
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<originInfo>
<dateIssued encoding="w3cdtf">20010413</dateIssued>
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<identifier type="ISSN">0021-9673</identifier>
<identifier type="PII">S0021-9673(00)X0628-0</identifier>
<part>
<date>20010413</date>
<detail type="issue">
<title>International Symposium on High Performance Liquid Phase Separations and Related Techniques. Part I, Seattle, WA, USA</title>
</detail>
<detail type="volume">
<number>913</number>
<caption>vol.</caption>
</detail>
<detail type="issue">
<number>1–2</number>
<caption>no.</caption>
</detail>
<extent unit="issue pages">
<start>1</start>
<end>454</end>
</extent>
<extent unit="pages">
<start>371</start>
<end>377</end>
</extent>
</part>
</relatedItem>
<identifier type="istex">E6C4566431EB8BFBE40B9FEB30E075762A24D235</identifier>
<identifier type="DOI">10.1016/S0021-9673(00)01029-3</identifier>
<identifier type="PII">S0021-9673(00)01029-3</identifier>
<accessCondition type="use and reproduction" contentType="copyright">©2001 Elsevier Science B.V.</accessCondition>
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<recordOrigin>Elsevier Science B.V., ©2001</recordOrigin>
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