首页> 外文期刊>Journal of the Institute of Brewing >Barley Grain Non-specific Lipid-Transfer Proteins (ns-LTPs)in Beer Production and Quality
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Barley Grain Non-specific Lipid-Transfer Proteins (ns-LTPs)in Beer Production and Quality

机译:大麦籽粒非特异性脂质转移蛋白(ns-LTPs)在啤酒生产和品质中的作用

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摘要

Plant non-specific lipid-transfer proteins (ns-LTPs) are known for their ability to transfer various lipids between membranes in vitro. These ubiquitous basic proteins, that all share alpha structure stabilized by four disulphide bridges, are characterized by the presence of a hydrophobic cavity able to accommodate lipid molecules. According to molecular mass, this multigene family is subdivided into two subfamilies, ns-LTP1 (9 kDa) and ns-LTP2 (7 kDa); both located in the aleurone layer of the cereal grain endosperm. Ns-LTP1 is a prominent protein in barley grain, malt and beer. Numerous studies performed on its structure and function confirm its important role in grain protection, as well as brewing technology. As the major beer protein crucial for many aspects of brewing, ns-LTP1 can affect beer production and quality. Comparatively, there is less data available on the less abundant ns-LTP2. In this review, the focus is on recent progress on the structure, biological and technological function of barley grain ns-LTP1 and ns-LTP2, with an emphasis on their importance in brewing.
机译:植物非特异性脂质转移蛋白(ns-LTP)以其在体外的膜间转移各种脂质的能力而闻名。这些普遍存在的碱性蛋白质均具有通过四个二硫键稳定的α结构,其特征是存在能够容纳脂质分子的疏水腔。根据分子质量,该多基因家族分为两个亚家族:ns-LTP1(9 kDa)和ns-LTP2(7 kDa)。两者都位于谷物籽粒胚乳的糊粉层中。 Ns-LTP1是大麦籽粒,麦芽和啤酒中的重要蛋白质。关于其结构和功能的大量研究证实了其在谷物保护以及酿造技术中的重要作用。 ns-LTP1作为主要啤酒蛋白质,对啤酒酿造的许多方面至关重要,因此会影响啤酒的产量和品质。相对而言,数量较少的ns-LTP2上的可用数据较少。在这篇综述中,重点是关于大麦籽粒ns-LTP1和ns-LTP2的结构,生物学和技术功能的最新进展,重点是它们在酿造中的重要性。

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