β-葡聚糖复合凝胶的超高压/热诱导制备技术及其性状评价
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(北京大学公共卫生学院营养与食品卫生学系,北京 100191)

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樊蕊(1985—),女,北京大学医学部主管技师,博士。E-mail: rfcaubj@126.com

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The ultrahigh-pressure/thermally induced technologies of the β-glucan mixed gel and the evaluation system for their properties
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(Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China)

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    摘要:

    采用流变学、质构、扫描电镜等分析方法,将新型超高压诱导技术和传统热处理技术制备的β-葡聚糖复合凝胶的表观和功能性质进行比较。结果表明,超高压诱导和热诱导成胶浓度分别为7%和8%,超高压诱导的β-葡聚糖复合凝胶的持水性、凝胶硬度、弹性、咀嚼性和内聚性强于热诱导的,其中,超高压诱导的β-葡聚糖复合凝胶硬度显著高于热诱导的(P<0.05),但其持油性显著低于热诱导制备的(P<0.05)。另外,超高压诱导的β-葡聚糖复合凝胶的冻融稳定性优于热诱导的。且其微观结构较为光滑、致密,孔洞分布均匀且数量和体积均小于热诱导的。

    Abstract:

    The apparent and functional properties of the mixed gel prepared with the thermal and ultrahigh-pressure were compared by rheological, texture, scanning electron microscopy and other analytical methods. The results showed that the β-glucan typical gels formed by ultra-high pressure and thermally induced at the total concentration of 7% and 8%, respectively, and the properties in water hold capacity, gel hardness, elasticity, chewiness and internality of β-glucan mixed gel formed by ultra-high pressure showed the more superior, in which the hardness of gel formed by ultrahigh pressure was significantly stronger than gel formed by thermal-induced gel (P<0.05), while the oil hold capacity of the ultrahigh-pressure induced gel was obviously lower than that of thermally induced gel (P<0.05). In addition, the ultrahigh-pressure induced gel showed better freeze-thaw stability, and a smooth, dense microstructure, which contained an uniform pore with a smaller volume than the thermally induced gel.

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樊蕊.β-葡聚糖复合凝胶的超高压/热诱导制备技术及其性状评价[J].食品与机械,2019,(2):15-20.
FANRui. The ultrahigh-pressure/thermally induced technologies of the β-glucan mixed gel and the evaluation system for their properties[J]. Food & Machinery,2019,(2):15-20.

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  • 收稿日期:2018-11-12
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  • 在线发布日期: 2022-11-26
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