提取方法对特种咖啡的芳香特征,抗氧化活性和感官接受度的影响
Barbora Lapčíková1,2, Lubomír Lapčík1,2, Petr Barták1
1Department of Physical Chemistry, Faculty of Science, Palacky University Olomouc, 17. Listopadu 12, 771 46 Olomouc, Czech Republic.
Foods (Basel, Switzerland)
|November 25, 2023
概括
咖啡和冷方法最好保存咖啡.
科学领域:
- 食品科学与技术 食品科学与技术
- 分析化学 分析化学
- 感官科学 感官科学
背景情况:
- 在全球范围内,特种咖啡的消费量正在增加.
- 咖啡的健康益处与其化学成分和抗氧化特性有关.
- 提取方法显著影响咖啡的化学特征和感官属性.
研究的目的:
- 调查不同咖啡提取方法对化学成分,抗氧化活性和感觉特征的影响.
- 为了比较四种提取技术:冷酒 (CB),咖啡 (ES),法式压 (FR) 和飞机压 (AE).
- 确定最佳的提取方法,以保持有益的化合物和可取的感觉特征.
主要方法:
- 对于抗氧化活性和总多含量 (TPC) 的DPPH试验和Folin-Ciocalteu试验.
- 高性能液体色谱 (HPLC) 用于咖啡因和酸的量化.
- 头部空间固态微提取/气色谱-质谱 (HS-SPME/GC-MS) 用于挥发性化合物分析.
- 根据特种咖啡协会 (SCA) 标准进行感官分析.
主要成果:
- 哥伦比亚 (C) 咖啡 (全方位烤) 显示出最高的抗氧化活性和TPC.
- 咖啡 (EY型,中深烤) 呈现出最高水平的挥发性化合物.
- 冷 (C型,全烤) 是由于感官特征和风味而被偏爱的.
- 埃斯普雷索和冷酒被认为是整体上更有效的提取方法.
结论:
- 提取方法极大地影响咖啡的化学和感官特性.
- 咖啡和冷酒是最大限度地提高抗氧化活性,多含量和可取的挥发性物质的优质方法.
- 进一步的研究可以优化特定咖啡来源和烤的提取参数.
更多相关视频
07:05Author Spotlight: Eco-Friendly Extraction of Bioactive Compounds Using Polyol-Based Microwave-Assisted Techniques
Published on: August 23, 2024
1.7K
08:43PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis
Published on: May 11, 2017
12.4K
相关概念视频
Extraction: Effects of pH
498
Consider a neutral form of an amine, B, with a partition coefficient, K, in a liquid mixture containing organic and aqueous phases. The pH of the aqueous phase affects the charge on acidic and basic solutes, and the charged form is usually more soluble in the aqueous phase. Suppose the conjugate acid form of the amine is soluble only in the aqueous phase while the base form is soluble in both phases. Then the distribution coefficient, D, can be given as the ratio of amine concentration in the...
498
Extraction: Advanced Methods
450
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
450
