Ageing and retail display time in raw beef odour according to the degree of lipid oxidation.

Ageing and retail display time in raw beef odour according to the degree of lipid oxidation.

Food chemistry (2017-10-19)

Virginia C Resconi, Mónica Bueno, Ana Escudero, Danielle Magalhaes, Vicente Ferreira, M Mar Campo

要旨

This study aims to assess the changes in beef aroma over time when steaks from pre-aged knuckles are stored in retail display under high oxygen conditions for 15 or 22days in vacuum conditions. Odorous volatile compounds were analysed by solid-phase microextraction/gas chromatography-mass spectrometry. Results were grouped as low, medium and high oxidative groups according to thiobarbituric acid reactive substances values after 9days of display. The intensity of off-odours in the raw meat increased with ageing and display time and oxidative groups. Based on correlations between the variables and regressions of the compounds through display, eight compounds were proposed as odour shelf-life markers. Among them, five were most sensitive and precise in all oxidative groups: 1-hexanol in meat aged for 15days, ethyl- octanoate and 2-pentylfuran in meat aged for 22days, and pentanoic and hexanoic acids in the two studied ageing times.

材料

製品番号

ブランド

製品内容

57298-U

Supelco

SPMEファイバーアセンブリ, 50/30µm DVB/CAR/PDMS, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, plain gray hub

57348-U

Supelco

SPMEファイバーアセンブリ, 50/30µm DVB/CAR/PDMS, StableFlex (2cm), needle size 24 ga, Autosampler, pk of 3, notched gray hub

57328-U

Supelco

SPMEファイバーアセンブリ, 50/30µm DVB/CAR/PDMS, StableFlex (1cm), needle size 24 ga, Manual Holder, pk of 3, plain gray hub

115606

Sigma-Aldrich

ヘキサナール, 98%

57299-U

Supelco

SPMEファイバーアセンブリ, 50/30µm DVB/CAR/PDMS, StableFlex (2cm), needle size 23 ga, Autosampler, pk of 3, notched gray hub

57329-U

Supelco

SPMEファイバーアセンブリ, 50/30µm DVB/CAR/PDMS, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, plain gray hub

57341-U

Supelco

SPMEファイバーアセンブリーポリジメチルシロキサン(PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, red hub

D215554

Sigma-Aldrich

ジプロピレングリコール, 99%, mixture of isomers

108383

Sigma-Aldrich

1,1,3,3-テトラメトキシプロパン, 99%

57300-U

Supelco

SPMEファイバーアセンブリーポリジメチルシロキサン(PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, red hub

57318

Supelco

SPMEファイバー・アセンブリカルボキセン／ポリジメチルシロキサン（CAR/PDMS）, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, black hub

57301

Supelco

SPMEファイバーアセンブリーポリジメチルシロキサン(PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, red hub

57310-U

Supelco

SPMEファイバー・ポリジメチルシロキサン／ジビニルベンゼン（PDMS/DVB）, 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, blue hub

255653

Sigma-Aldrich

trans-2-ノネナール, 97%

57319

Supelco

SPMEファイバー・アセンブリカルボキセン／ポリジメチルシロキサン（CAR/PDMS）, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, black hub

57295-U

Supelco

SPMEファイバー・アセンブリカルボキセン／ポリジメチルシロキサン（CAR/PDMS）, 85 μm CAR/PDMS, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, light blue hub

57293-U

Supelco

SPMEファイバー・ポリジメチルシロキサン／ジビニルベンゼン（PDMS/DVB）, 65 μm PDMS/DVB, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, pink hub

57311

Supelco

SPMEファイバー・ポリジメチルシロキサン／ジビニルベンゼン（PDMS/DVB）, 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, blue hub

148962

Sigma-Aldrich

ヘキサン酸エチル, ≥99%

57326-U

Supelco

SPMEファイバー・ポリジメチルシロキサン／ジビニルベンゼン（PDMS/DVB）, 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 3, pink hub

W331708

Sigma-Aldrich

2-ペンチルフラン, ≥98%, FG

57334-U

Supelco

SPMEファイバー・アセンブリカルボキセン／ポリジメチルシロキサン（CAR/PDMS）, 85 μm CAR/PDMS, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 3, light blue hub

57305

Supelco

SPMEファイバーアセンブリーポリアクリラート (PA), 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, white hub

57359-U

Supelco

SPMEポータブルフィールドサンプラー, coating PDMS/DVB

57327-U

Supelco

SPMEファイバー・ポリジメチルシロキサン／ジビニルベンゼン（PDMS/DVB）, 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, pink hub

57294-U

Supelco

SPMEファイバーアセンブリーポリアクリラート (PA), 85 μm Polyacrylate, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, white hub

57335-U

Supelco

SPMEファイバー・アセンブリカルボキセン／ポリジメチルシロキサン（CAR/PDMS）, 85 μm CAR/PDMS, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, light blue hub

57346-U

Supelco

SPMEファイバー・ポリジメチルシロキサン／ジビニルベンゼン（PDMS/DVB）, 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, blue hub

504823

Supelco

SPMEポータブルフィールドサンプラー, coating PDMS

57550-U

Supelco

SPME StableFlex^™ファイバー組み合わせキット, Assortment, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 4