Acoustic properties of crystallized fat: Relation between polymorphic form, microstructure, fracturing behavior, and sound intensity
Acoustic properties of crystallized fat: Relation between polymorphic form, microstructure, fracturing behavior, and sound intensity
复制标题
结晶脂肪的声学特性：多晶型、微观结构、断裂行为和声强之间的关系
DOI：
10.1002/ejlt.201500435
复制
发表时间：
2016
影响因子：
2.7
通讯作者：
Gregersen S
中科院分区：
文献类型：
--
作者：
Gregersen S
这项研究证明了脂肪晶体网络，断裂行为和断裂时的声音发射之间的联系。SOS，PSO，PPO和POP丰富的脂肪，其特征在于SAXS/WAXS和共聚焦激光扫描显微镜。同时纹理和声学分析进行了使用的纹理分析仪连接到一个声学包络检测器，并增强了宽带麦克风结合数字采样示波器。结果表明，力曲线的二阶导数负值（提供了能量释放的量度）与声强高度相关（r = 0.89，p < 0.05）。没有发现声学特性与多晶型行为、晶体大小或晶体形态之间的关系。所有脂肪在储存1天内都结晶成β′形式。随后，只有富含PPO和POP的脂肪转化为β形式（2-4周）。对脂肪晶体网络内颗粒内和颗粒间连接的相对强度的评价表明，颗粒间连接对声音强度具有重要作用，而颗粒内连接的重要性较小。据推测，强的颗粒间连接提供了一个强大的刚性结构，从而在压缩过程中积累能量，并在破碎时快速释放能量，并伴随着声发射。实际应用：这项研究的结果提供了关于脂肪声学特性的重要知识，这有助于确保巧克力和糖果产品在破碎时发出高强度的声音。脂肪的声学特性对巧克力和糖果产品的折断很重要。这项研究表明，破碎声强是如何显着相关的力曲线的二阶导数的负部分，这可能是一个刚性的结构，由于强大的颗粒内链接。
This study demonstrates a link between the fat crystal network, fracturing behavior, and sound emission upon breakage. SOS, PSO, PPO, and POP rich fats were characterized by SAXS/WAXS and confocal laser scanning microscopy. Simultaneous texture and acoustic analysis was conducted by the use of a texture analyzer connected with an acoustic envelope detector and augmented by a broad band microphone combined with a digital sampling oscilloscope. Results shows a high correlation between negative values of the 2nd derivative of force curves, providing a measure of the energy release, and the sound intensity (r =0.89,p< 0.05). No relation between acoustic properties and polymorphic behavior, crystal size, or crystal morphology was found. All fats crystallized into a β′ form within 1 day of storage. Subsequently, only the PPO and POP rich fats transformed into the β form (2–4 wk). Evaluation of the relative strength of intra‐ and interparticle links within the fat crystal network, indicate an important role of inter‐particle links for the sound intensity, whereas intra‐particle links were of less importance. It is hypothesized that strong interparticle links provide a strong rigid structure resulting in build‐up of energy during compression and a fast energy release upon breakage accompanied by sound emission.Practical applications:Results from this study provide important knowledge on acoustic properties of fat which can contribute to ensuring a suitable snap, in terms of a high intense sound upon breakage, of chocolate and confectionery products.Acoustic properties of fats are important for the snap of chocolate and confectionery products. This study demonstrates how the breakage sound intensity is significantly correlated with the negative part of the second derivate of force curves, which can be related to a rigid structure due to strong intraparticle links.
登录
查看更多内容
SatSatSat 和 SatOSat 对模型脂肪混合物结晶的影响
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
J. Vereecken;I. Foubert;K. Smith;K. Dewettinck
通讯作者：
K. Dewettinck
咀嚼声音的主成分分析可检测苹果脆度的差异
DOI：
--
发表时间：
2000
期刊：
影响因子：
--
作者：
N. Belie;V. D. Smedt;J. Baerdemaeker
通讯作者：
J. Baerdemaeker
模型脂质系统的晶体形态、微观结构和结构特性
DOI：
--
发表时间：
2005
期刊：
影响因子：
--
作者：
Yuping Shi;B. Liang;R. Hartel
通讯作者：
R. Hartel
通过带宽限制探测听力的时间分辨率
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
M. Kunchur
通讯作者：
M. Kunchur
SOS（sn-1,3-二硬脂酰-2-油酰甘油）液晶形成和多晶型结晶的同步辐射X射线衍射研究
DOI：
--
发表时间：
1997
期刊：
影响因子：
--
作者：
S. Ueno;Akiyoshi Minato;H. Seto;Y. Amemiya;Kiyotaka Sato
通讯作者：
Kiyotaka Sato