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  • Non-thermal processing of pineapple (Ananas comosus [L.] Merr.) juice using continuous pressure change technology (PCT): HS-SPME-GC-MS profiling, descriptive sensory analysis, and consumer acceptance.

Non-thermal processing of pineapple (Ananas comosus [L.] Merr.) juice using continuous pressure change technology (PCT): HS-SPME-GC-MS profiling, descriptive sensory analysis, and consumer acceptance.

Food chemistry (2020-12-15)
Kathrin Vollmer, Michael Czerny, Ana Lucía Vásquez-Caicedo, Salima Varona Iglesias, Jan Frank, Reinhold Carle, Christof Björn Steingass
摘要

The effects of single and twofold continuous pressure change technology (PCT) applications on the volatiles and sensory characteristics of pineapple juice were studied. Fresh and thermally pasteurised juices were additionally characterised. 128 volatiles were tentatively assigned in the four juices. Thermal pasteurisation and a single PCT treatment caused substantial losses in total volatiles of 6 and 20%, respectively. A second PCT passage further reduced the volatiles (36%) and is thus not recommended. PCT-treated samples were clearly distinguished from the remaining juices by principal component analysis. The descriptive sensory profiles, assessed by trained panellists, were not substantially affected by thermal pasteurisation and non-thermal PCT. The fresh juice exhibited a significant fishy off-flavour. In the consumer acceptance test, the thermally pasteurised juice was highly rated compared to both PCT-treated and the fresh juice. This study highlights the potential of PCT to avoid the genesis of off-flavours in fresh-like pineapple juice.

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正己醛, 98%
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聚二甲基硅氧烷, viscosity 1.0 cSt (25 °C)
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国内现货,预计发货时间 2025年4月07日
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50 mg
国内现货,预计发货时间 2025年4月07日
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¥4,970.41
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顺式-4-庚烯醛, ≥98%, stabilized, FCC, FG
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货号包装规格是否有货价格数量
10 mg
国内现货,预计发货时间 2025年4月07日
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¥1,620.99
50 mg
国内现货,预计发货时间 2025年4月07日
详情...
¥4,970.41
¥1,491.13
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2-甲基-1-戊醇, 99%
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货号包装规格是否有货价格数量
10 mg
国内现货,预计发货时间 2025年4月07日
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¥1,620.99
50 mg
国内现货,预计发货时间 2025年4月07日
详情...
¥4,970.41
¥1,491.13