高度的棕酸会改变无水牛奶脂肪的纳米结构
Mathilde Bayard1, Brice Kauffmann2, Fernando Leal-Calderon3
1Université de Bordeaux, CNRS, Bordeaux INP, CBMN UMR 5248, 33600 Pessac, France; Soredab, La Tremblaye, 78125 La Boissière Ecole, France.
Food chemistry
|January 26, 2024
概括
高度的棕酸 (PA) 改变了无水牛奶脂肪 (AMF) 中的三糖醇 (TAG) 结晶. PA促进特定的多态形式的形成,影响TAG晶体结构.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学是一种材料科学.
- 晶体学 晶体学是指结晶学.
背景情况:
- 无水牛奶脂肪 (AMF) 是一个复杂的脂质系统.
- 了解三糖醇 (TAG) 的结晶行为对于食品加工至关重要.
- 棕酸 (PA) 是一种常见的脂肪酸,可以影响脂质结晶.
研究的目的:
- 研究高度棕酸 (PA) 对无水牛奶脂肪 (AMF) 中的三糖醇 (TAG) 网络形成的纳米影响.
- 为了确定PA如何影响TAG晶体的多态形式.
- 为了比较高PA度与低PA度和纯AMF的影响.
主要方法:
- 使用X射线散射进行纳米级结构分析.
- 无水牛奶脂肪 (AMF) 的制备与不同度的棕酸 (PA) (10%PA) 混合.
- 在25°C的温度下对融混合物进行受控火.
- 来自纯AMF,纯PA和AMF-PA混合物的X射线散射数据的比较分析.
主要成果:
- 低度 (1重量%) 的PA并没有改变TAG晶体的纳米结构,TAG晶体直接结晶成β'-2L形式.
- 高度 (10重量%) 的PA显著影响了TAG结晶.
- 高度的PA促进了特定多态形式 (α和β) 的形成,这表明PA启动的有针对性的结晶过程.
结论:
- 棕酸 (PA) 作为无水牛奶脂肪 (AMF) 中的结晶促进剂.
- 在确定其对TAG结晶的影响时,PA的度至关重要.
- 在高度下,PA首先结晶,然后将AMFTAG的结晶转化为特定的多态形式 (α和β).
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