通过乳液脱水来微封装橄油:乳液配方和脱水过程的影响
Donia Chaabane1, Iman Mirmazloum2, Asma Yakdhane1
1Department of Food Process Engineering, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi Str. 44, HU-1118 Budapest, Hungary.
Bioengineering (Basel, Switzerland)
|June 28, 2023
概括
使用马尔托德素 (MD) 和乳清蛋白分离物 (WPI) 微封装额外处女橄油,以50%的MD + 50%的WPI混合物和喷雾干燥 (SD) 达到最高效率. 不同的比率影响了微囊的特性,例如尺寸和密度.
科学领域:
- 食品科学 食品科学 食品科学
- 材料科学 材料科学 材料科学
背景情况:
- 额外处女橄油 (EVOO) 富含有益的化合物,但容易氧化.
- 微封装提供了一种方法来保护EVOO并控制其释放.
研究的目的:
- 通过使用不同比例的麦芽素 (MD) 和乳清蛋白分离物 (WPI) 来研究EVOO的微封装.
- 评估不同干燥方法 (喷雾干燥和冷干燥) 对微囊特性的影响.
主要方法:
- 乳液是用EVOO和不同的MD/WPI比率 (100%MD,100%WPI,25%MD+75%WPI,50%MD+50%WPI,75%MD+25%WPI) 制备的.
- 乳液通过喷雾干燥 (SD) 或冷干燥 (FD) 脱水.
- 分析了微囊的特性,包括封装效率,水分含量,尺寸,密度,流动性,凝聚性和表面形态.
主要成果:
- 在50%的MD+50%的WPI混合物中观察到最高的封装效率,其次是SD.
- 增加MD比例增加了水分含量,但减少了密度和改善了流动性.
- 增加WPI比例增加了微囊大小,并导致具有SD的球形颗粒,但具有FD的不规则片.
结论:
- 50%的MD + 50%的WPI和喷雾干燥的组合是实现EVOO高封装效率的最佳选择.
- 墙壁材料比率和干燥方法的选择极大地影响了产生的微囊的物理性质和形态.
相关概念视频
00:43Dehydration of Aldols to Enones: Acid-Catalyzed Aldol Condensation
2.3K
As shown in Figure 1, under acidic conditions, the β-hydroxy ketone undergoes dehydration via an E1 elimination reaction to form an enone.
2.3K
02:35Acid-Catalyzed Dehydration of Alcohols to Alkenes
20.1K
In a dehydration reaction, a hydroxyl group in an alcohol is eliminated along with the hydrogen from an adjacent carbon. Here, the products are an alkene and a molecule of water. Dehydration of alcohols is generally achieved by heating in the presence of an acid catalyst. While the dehydration of primary alcohols requires high temperatures and acid concentrations, secondary and tertiary alcohols can lose a water molecule under relatively mild conditions.
20.1K
01:15Dehydration Synthesis
133.7K
Overview
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
133.7K
01:14Dehydration of Aldols to Enals: Base-Catalyzed Aldol Condensation
5.6K
This lesson delves into the aldol condensation catalyzed by bases, where aldols undergo dehydration to enals. As shown in Figure 1, the β-hydroxy aldehyde formed in a base-catalyzed aldol addition reaction dehydrates on heating to yield an unsaturated carbonyl product, which is commonly referred to as an enal.
5.6K