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  • HS-GC-MS volatile compounds recovered in freshly pressed 'Wonderful' cultivar and commercial pomegranate juices.

HS-GC-MS volatile compounds recovered in freshly pressed 'Wonderful' cultivar and commercial pomegranate juices.

Food chemistry (2015-07-28)
John C Beaulieu, R E Stein-Chisholm
ABSTRACT

Consumption and production of superfruits has been increasing. Highly colored fruits often have bitter and astringent components that may make them undesirable, especially when processed. Many pomegranate volatile reports involved commercial samples, complicated isolation methods, or blending and concentrating that were from arils only, cultivars other than 'Wonderful', or mixed cultivars. Solid phase microextraction (SPME), polydimethylsiloxane stir bar sorptive extraction, and Tenax adsorption were performed with freshly pressed 'Wonderful' juices, commercial juices and concentrates. Using SPME, 36 compounds were isolated in whole pressed 'Wonderful' juices, including 18 of the 21 consensus compounds. In arils-only juices, 41 compounds were isolated by SPME, including 17 of the consensus volatiles. Dramatic variation existed in volatiles recovered in commercial juices and isolation of consensus compounds was sporadic. This article and summary of the literature serves to possibly deliver an improved volatile data set via a rapid method for fresh and partially processed (pressed) pomegranates.

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Unità fibra SPME polidimetilsilossano (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, red hub
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Unità fibra SPME polidimetilsilossano (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, red hub
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Unità fibra SPME polidimetilsilossano (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, red hub
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Gruppo fibre SPME polidimetilsilossano/divinilbenzene (PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, blue hub
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Gruppo fibre SPME polidimetilsilossano/divinilbenzene (PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, pink hub
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Gruppo fibre SPME polidimetilsilossano/divinilbenzene (PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, blue hub
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Gruppo fibre SPME polidimetilsilossano/divinilbenzene (PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 3, pink hub
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Gruppo fibre SPME poliacrilato (PA), 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, white hub
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SPME Portable Field Sampler, coating PDMS/DVB
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Gruppo fibre SPME polidimetilsilossano/divinilbenzene (PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, pink hub
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Gruppo fibre SPME polidimetilsilossano/divinilbenzene (PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, blue hub
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Gruppo fibre SPME poliacrilato (PA), 85 μm Polyacrylate, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, white hub
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SPME Portable Field Sampler, coating PDMS
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SPME Fiber Assembly Kit, Assortment, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 4
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Unità fibra SPME polidimetilsilossano (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, red hub
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SPME Fiber Assembly Kit, Assortment, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 4
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SPME Portable Field Sampler, coating CAR/PDMS
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Gruppo fibre SPME, rivestimento in glicole polietilenico (PEG) Carbowax, 60 μm PEG, Metal Alloy (1 cm), needle size 23 ga, Autosampler, pk of 3, purple hub
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SPME Fiber Assembly Kit, Assortment #4, Fused Silica (1 cm), size 24 ga, Manual Holder, pk of 3
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Gruppo fibre SPME poliacrilato (PA), 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, white hub
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Unità fibra SPME polidimetilsilossano (PDMS), 7 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, green hub
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Unità fibra SPME polidimetilsilossano (PDMS), 30 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, yellow hub
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Gruppo fibre SPME polidimetilsilossano/divinilbenzene (PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, blue hub
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SPME Fiber Assembly Kit, Assortment #5, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 4
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SPME Fiber Assembly Kit, Assortment #1, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3
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SPME Overcoated Fiber Assembly, 65 μm PDMS/DVB, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, notched pink hub
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Gruppo fibre SPME, rivestimento in glicole polietilenico (PEG) Carbowax, 60 μm PEG, Metal Alloy (1 cm), needle size 23 ga, Manual Holder, pk of 3, purple hub
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Unità fibra SPME polidimetilsilossano (PDMS), 30 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, yellow hub
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SPME Fiber Assembly Kit, Assortment #2, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3
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SPME Fiber Assembly Kit, Assortment #1, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3