蜜蜂和糖单酸盐之间对食品级油的比较研究
Francesca Malvano1, Donatella Albanese1, Luciano Cinquanta2
1Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy.
Gels (Basel, Switzerland)
|April 26, 2024
概括
这项研究比较了蜂 (BW) 和甘油单酸 (GMS) 油脂,用于从不和油中制造固体脂肪. 基于GMS的油脂凝表现出优越的油结合,结构和氧化稳定性,使它们成为有希望的替代品.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学 材料科学 材料科学
背景情况:
- 含有高不和脂肪酸的固体脂肪对于更健康的食品来说是可取的.
- 油脂提供了传统的动物来源或化固体脂肪的潜在替代品.
研究的目的:
- 评估和比较蜜蜂 (BW) 和糖醇单酸 (GMS) 作为橄油和花生油的油剂.
- 描述开发的油脂凝的物理和热性能.
主要方法:
- 在橄油和花生油中使用不同度的BW和GMS制备油凝.
- 分析临界油凝剂度,热性质 (DSC),油结合能力,形态 (SEM),固体脂肪含量 (SFC),度和氧化稳定性.
主要成果:
- 对BW和GMS的临界油剂度为3%.
- 基于GMS的油脂凝表现出多态结构,高油结合能力 (油释放率<4%) 和不规则的针状晶体集群.
- 基于GMS的油脂在25°C和37°C时,与基于BW的油脂相比,显示出更高的固体脂肪含量 (SFC).
- 由于网络结构较强,橄油/GMS油脂凝显示出更大的坚性和增强的氧化稳定性.
结论:
- 糖醇单酸 (GMS) 是比蜂 (BW) 更有效的油剂,用于生产含有高不和脂肪酸含量的结构化油.
- 基于GMS的油脂,特别是来自橄油的油脂,提供了更好的物理性能和氧化稳定性,将它们定位为可行的脂肪替代品在食品应用中.
相关概念视频
02:34Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility
Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
02:17Physical Properties of Ethers
Overview
An ether molecule has a net dipole moment due to the polarity of C–O bonds. Subsequently, boiling points of ethers are lower than those of alcohols of comparable molecular weight and slightly higher than those of hydrocarbons of comparable molecular weight (Table 1).
Ethers can act as hydrogen bond acceptors, making them more water-soluble than hydrocarbons, but since ethers cannot act as hydrogen bond donors, they are much less soluble in water than alcohols. Ethers are considered...
An ether molecule has a net dipole moment due to the polarity of C–O bonds. Subsequently, boiling points of ethers are lower than those of alcohols of comparable molecular weight and slightly higher than those of hydrocarbons of comparable molecular weight (Table 1).
Ethers can act as hydrogen bond acceptors, making them more water-soluble than hydrocarbons, but since ethers cannot act as hydrogen bond donors, they are much less soluble in water than alcohols. Ethers are considered...
01:25Esters to Carboxylic Acids: Saponification
Esters can be hydrolyzed to carboxylic acids under acidic or basic conditions. Base-promoted hydrolysis of esters is a nucleophilic acyl substitution reaction in which esters react with an aqueous base, followed by an acid to give carboxylic acids. This reaction is also known as saponification because it forms the basis for making soaps from fats.
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...