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黄原胶的流变性质及其在食品工业中的应用 总被引:2,自引:0,他引:2
黄原胶是一种广泛应用在食品、化工等领域的微生物多糖,本论文主要论述了黄原胶的分子结构、流变性质及其在食品工业及生物工程中的应用。 相似文献
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瓜尔豆胶在食品中的应用 总被引:4,自引:0,他引:4
<正>瓜尔豆胶(GUARDAN)是从瓜尔树种子的内胚乳中经加工提取的,瓜尔树广泛地种植于印度及巴基斯坦等地,属多年生豆科植物,瓜尔豆约含有50%蛋白质,是一种高蛋白的牲畜饲料。 瓜尔豆胶是一种高粘度的天然多糖化合物,粘度极高,可达5000CPS,其成分是半乳糖配甘露聚糖,由甘露糖与半乳糖单位组成支链,属亲水性胶体,它是一种能溶于水的氢化胶体,也是一种冷水溶胀高聚物,分散于冷水中,约2小时后呈现很强粘度,以后粘度逐渐增大,加热能迅速达到最高粘度,水溶液为中性,pH3.5以下仍然保持较高的粘度。 相似文献
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采用质构仪检测可得然胶的凝胶特性,并研究其对西式羊肉火腿质构的影响。结果表明,可得然胶随着质量浓度和加热温度的升高,凝胶强度逐渐增加,同时具有热不可逆性,高于80 ℃加热可得然胶水溶液,冷却形成凝胶后,重新加热凝胶结构不会破坏;合适的NaCl质量浓度、磷酸盐质量浓度和pH值可以提高可得然胶的凝胶强度,添加大豆蛋白会降低可得然胶的凝胶强度,而蔗糖和淀粉对可得然胶的凝胶强度影响不大。将可得然胶添加到肉制品西式羊肉火腿中,随着添加量的增加,质构显示出逐渐增加的趋势。 相似文献
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凝胶多糖具有生物可降解、无毒、来源广泛等特点及抗肿瘤、免疫调节等功能,已成为食品加工和医药开发领域重点关注和研究的多糖之一。随着凝胶多糖的三螺旋特殊构象及其自组装机制相关研究的不断深入,特别是基于自组装作用构建功能性生物大分子及复合物越来越受到重视,凝胶多糖在食品和生物医药等领域内功能化利用和产业化应用方面涌现出越来越多新的研究方向。本文综述了凝胶多糖自组装及其应用,尤其是在不同诱导方式下的自组装过程特点及基于自组装作用构建功能材料的最新研究进展,以期为凝胶多糖在食品领域内的相关研究与应用提供理论参考。 相似文献
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ABSTRACT: The diffusion properties of curdlan gels were characterized against its viscoelastic behavior. With increased junction zones involved in rigid crosslinks in higher concentration gels, the three-dimensional structure of curdlan is characteristic. As the gel concentration increases, the intermolecular crosslinking and apparent viscosity increase, reducing mobility of the polymer chains with slower release rates. The scaling laws confirmed that curdlan gel network structure corresponds to that of polymer chains in a good solvent at the semi-dilute regime. Diffusion of the entrapped agent in 6% gels resembled pseudo-controlled release behavior, and a further increase in gel concentration might produce microspheres that support a sustained release. 相似文献
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通过对一株粪产碱杆菌WX-C12(Alcaligenes 相似文献
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Gelling characteristics and viscoelastic properties of aqueous suspensions of curdlan were investigated by dynamic viscoelasticity measurements. The mechanical spectrum of the suspension was similar to that of weak gels, suggesting the suspension has a well-regulated particle-alignment with yield stress. Curdlan reached the highest moisture absorption rate within the temperature range in which the most significant moisture loss of meat occurs. These results suggest that curdlan could be an effective main ingredient in fat mimetics for meat products. Nonfat sausages using the curd lan-based fat mimetics were prepared and evaluated by a creep test and indicated curdlan was effective as a fat re-placer in such systems. 相似文献