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Carotenoid-cleavage activities of crude enzymes from Pandanous amryllifolius.

Chemistry & biodiversity (2014-11-20)
Andriati Ningrum, Matthias Schreiner
ABSTRACT

Carotenoid degradation products, known as norisoprenoids, are aroma-impact compounds in several plants. Pandan wangi is a common name of the shrub Pandanus amaryllifolius. The genus name 'Pandanus' is derived from the Indonesian name of the tree, pandan. In Indonesia, the leaves from the plant are used for several purposes, e.g., as natural colorants and flavor, and as traditional treatments. The aim of this study was to determine the cleavage of β-carotene and β-apo-8'-carotenal by carotenoid-cleavage enzymes isolated from pandan leaves, to investigate dependencies of the enzymatic activities on temperature and pH, to determine the enzymatic reaction products by using Headspace Solid Phase Microextraction Gas Chromatography/Mass Spectrophotometry (HS-SPME GC/MS), and to investigate the influence of heat treatment and addition of crude enzyme on formation of norisoprenoids. Crude enzymes from pandan leaves showed higher activity against β-carotene than β-apo-8'-carotenal. The optimum temperature of crude enzymes was 70°, while the optimum pH value was 6. We identified β-ionone as the major volatile reaction product from the incubations of two different carotenoid substrates, β-carotene and β-apo-8'-carotenal. Several treatments, e.g., heat treatment and addition of crude enzymes in pandan leaves contributed to the norisoprenoid content. Our findings revealed that the crude enzymes from pandan leaves with carotenoid-cleavage activity might provide a potential application, especially for biocatalysis, in natural-flavor industry.

MATERIALS
Product Number
Brand
Product Description

Supelco
SPME fiber assortment kit 5, needle size 23 ga, for use with autosampler
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), for use with autosampler, needle size 23 ga, metal alloy fiber
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 23 ga, PDMS/DVB StableFlex, for use with autosampler
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SPME fiber assembly, Carbowax-Polyethylene Glycol (PEG) Coating, needle size 23 ga, df 60 μm (PEG), metal alloy fiber, for use with manual holder
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SPME fiber assortment kit 4, for use with autosampler, needle size 23 ga
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SPME fiber assortment kit 2, for use with autosampler, needle size 23 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 24 ga, StableFlex, for use with manual holder
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SPME StableFlex fiber assortment kit, needle size 23 ga, for use with autosampler
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SPME fiber assortment kit 1, for use with autosampler, needle size 23 ga
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SPME fiber assortment kit 2, for use with autosampler, size 24 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), fused silica fiber, df 65 μm (PDMS/DVB), for use with manual holder, needle size 23 ga
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SPME fiber assortment kit 4, for use with manual holder, size 24 ga
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SPME fiber assortment kit 1, for use with manual holder, needle size 24 ga
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SPME StableFlex fiber assortment kit, for use with manual holder
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SPME fiber assortment kit 4, for use with autosampler, size 24 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), for use with autosampler, needle size 23 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 24 ga, StableFlex, for use with autosampler
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 24 ga, for use with autosampler
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SPME fiber assortment kit 1, for use with autosampler, needle size 24 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 24 ga, for use with manual holder
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SPME fiber assembly Polydimethylsiloxane (PDMS), df 100 μm (PDMS), for use with manual holder, needle size 23 ga
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