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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
ZUSAMMENFASSUNG

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.

MATERIALIEN
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Produktbeschreibung

Supelco
SPME-Faseranordnung Polydimethylsiloxan (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, red hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, red hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, red hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan/Divinylbenzen (PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, blue hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan/Divinylbenzen (PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, pink hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan/Divinylbenzen (PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, blue hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan/Divinylbenzen (PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 3, pink hub
Supelco
SPME-Faseranordnung Polyacrylat (PA), 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, white hub
Supelco
Tragbarer SPME-Field-Sampler, coating PDMS/DVB
Supelco
SPME-Faseranordnung Polydimethylsiloxan/Divinylbenzen (PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, pink hub
Supelco
SPME-Faseranordnung Polyacrylat (PA), 85 μm Polyacrylate, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, white hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan/Divinylbenzen (PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, blue hub
Supelco
Tragbarer SPME-Field-Sampler, coating PDMS
Supelco
SPME StableFlex Methodenentwicklungs-Kit, Assortment, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 4
Supelco
SPME-Faseranordnung Polydimethylsiloxan (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, red hub
Supelco
SPME StableFlex Methodenentwicklungs-Kit, Assortment, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 4
Supelco
Tragbarer SPME-Field-Sampler, coating CAR/PDMS
Supelco
SPME-Fasersortiment-Kit 4, Assortment #4, Fused Silica (1 cm), size 24 ga, Manual Holder, pk of 3
Supelco
SPME-Faseranordnung, Carbowax-Polyethylenglycol (PEG)-Beschichtung, 60 μm PEG, Metal Alloy (1 cm), needle size 23 ga, Autosampler, pk of 3, purple hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan (PDMS), 7 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, green hub
Supelco
SPME-Faseranordnung Polyacrylat (PA), 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, white hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan (PDMS), 30 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, yellow hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan/Divinylbenzen (PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, blue hub
Supelco
SPME-Fasersortiment-Kit 5, Assortment #5, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 4
Supelco
SPME-Fasersortiment-Kit 1, Assortment #1, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3
Supelco
SPME-Faseranordnung, Carbowax-Polyethylenglycol (PEG)-Beschichtung, 60 μm PEG, Metal Alloy (1 cm), needle size 23 ga, Manual Holder, pk of 3, purple hub
Supelco
SPME Overcoated Fiber Assembly, 65 μm PDMS/DVB, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, notched pink hub
Supelco
SPME-Faseranordnung Polydimethylsiloxan (PDMS), 30 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, yellow hub
Supelco
SPME-Fasersortiment-Kit 2, Assortment #2, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3
Supelco
SPME-Fasersortiment-Kit 1, Assortment #1, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3