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首页> 外文期刊>Crystal growth & design >The Triclinic Polymorphism of Cocoa Butter Is Dictated by Its Major Molecular Species, 1-Palmitoyl, 2-Oleoyl, 3-Stearoyl Glycerol (POS)
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The Triclinic Polymorphism of Cocoa Butter Is Dictated by Its Major Molecular Species, 1-Palmitoyl, 2-Oleoyl, 3-Stearoyl Glycerol (POS)

机译：可可脂的三星性多态性由其主要分子物种，1-palmitoyl，2-Oleyo1,3-硬脂酰甘油（POS）决定

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摘要

The triclinic polymorphic behavior of 1,3-dipalmitoyl, 2-oleoyl glycerol (POP), 1-palmitoyl, 2-oleoyl, 3-stearoyl glycerol (POS), and 1,3-stearoyl-2-oleoyl glycerol (SOS) were studied by X-ray diffraction and differential scanning calorimetry and compared to that of cocoa butter. Two triclinic polymorphs were isolated and identified in POP, three triclinic polymorphs in POS, and two triclinic polymorphs in SOS. SAXS and WAXS patterns of the beta(3) and beta(1) crystal polymorphs of POS were identical to those of crystal forms V and VI in cocoa butter. None of the individual triclinic forms of SOS and POP resembled those of CB. In this study, we show that the polymorphic transformation of POS from beta(3) to beta(1) was correlated with the polymorphic transformation from form V to VI in CB, the solid-state transition from the desirable cocoa butter crystal in chocolate to one associated with the "blooming" quality defect.
机译：1,3-二普米酰基，2-Oxeoyl甘油（POP），1-棕榈酰基，2-OXEOY1，3-硬酰甘油（POS）和1,3-硬酰-2-OXEOROL甘油（SOS）的三级多晶型特性 由X射线衍射和差示扫描量热法研究并与可可脂相比。 分离出两种三级多晶型物，并在POS中的POP，三个三星型多晶型物中鉴定，SOS中的两个三级多晶型物。 POS的β（3）和β（1）和β（1）晶粒多晶型物的淋巴和蜡模式与Cocoa黄油中的晶体形式V和VI的晶体多晶型物相同。 没有一个单独的SOS和POP的形式类似于CB的形式。 在这项研究中，我们表明，从β（3）至β（1）的POS的多态转化与CB中的VI至VI的多态性转化相关，从巧克力中所需的可可脂晶体中的固态转变 与“盛开”质量缺陷有关的一个。

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