共查询到18条相似文献,搜索用时 140 毫秒
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苦味机理与苦味抑制技术研究概况 总被引:4,自引:0,他引:4
苦味是一种分布广泛的味感,苦味物质在食品风味和生理调节方面具有重要作用,但苦味的高感知力是消费者拒食苦味食物的根本原因。文章简要论述苦味呈味机理、苦味物质特性及苦味抑制技术方面的研究进展。 相似文献
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苦味物质的存在会对食品的味感造成较大影响,为提高产品感官品质,部分食品在加工过程中会进行苦味物质的检测和控制。目前,食品中苦味物质的检测主要集中于感官分析、生物评价、动物评价和仪器评价等方法。本文论述了食品加工过程中苦味物质的来源及国内外对于苦味检测方法的研究进展,以期对食品中苦味物质的检测提供参考。 相似文献
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优质啤酒应具有细腻、爽口、令人愉快的苦味。本文分析了啤酒中苦味物质的来源及影响酒花中苦味物质的主要因素,介绍了酒花中α-酸、β-酸及成品啤酒中苦味值的测定方法,分析了导致啤酒不正常苦味的原因,并提出了控制啤酒中苦味物质的具体措施。 相似文献
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白酒的"苦味"及其解决措施 总被引:1,自引:0,他引:1
白酒中存在许多不同阈值的苦味物质,苦味有时表现为麻苦、焦苦、涩苦、甜苦等,会影响酒体质量,影响消费和企业效益。引起白酒苦味的主要物质有杂醇类、醛类、酚类化合物、硫化物、多肽、氨基酸和无机盐等。其主要来源于原辅料不净、原辅料选择不当或配料不合理以及工艺条件控制不当。解决酒苦味的措施有:控制酒体中的有机酸含量;应用勾兑与调味技术弱化苦味;防止加浆降度用水带入苦味;清蒸辅料、排除其邪杂味;合理配曲使用;加强生产环境卫生;严格控制合理的生产工艺。 相似文献
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苦味抑制荆是一类能降低或消除苦味物质苦味的化合物。目前已发现多种天然的苦味抑制剂,如苯乙烯酸衍生物、单磷酸腺苷、磷脂酸等。简要论述了天然苦味抑制荆的种类、效果及其应用。 相似文献
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苦杏仁中含有多种生物活性组分和营养素,具有较高的营养价值,但苦杏仁具有致敏性,过敏人群食用含有苦杏仁的食品后可能会产生过敏的风险。为探究超高压处理对苦杏仁分离蛋白结构和致敏性的影响,对杏仁分离蛋白进行不同压力处理,并利用圆二色谱、外源荧光光谱和酶联免疫吸附实验对其空间结构和致敏性进行表征。结果表明:苦杏仁分离蛋白100~500 MPa压力处理苦杏仁分离蛋白900 s后,苦杏仁分离蛋白其二级结构未发生显著变化。随着压力强度和保压时间的增加,苦杏仁分离蛋白的三级结构展开,荧光强度增加,疏水性基团暴露,表面疏水性逐渐增大,致敏性显著降低。苦杏仁分离蛋白致敏性的降低,可能是苦杏仁的过敏原构象表位发生了变化。该研究结果对开发安全的苦杏仁食品和饮料具有重要意义。 相似文献
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蛋白质酶解物苦味形成机理及控制研究 总被引:11,自引:0,他引:11
蛋白质酶解后产生不同程度苦味主要是由产物中含疏水性氨基酸低分子肽所形成,这些苦味严重影响蛋白质水解产物在食品工业中应用。该文综述不同食物蛋白质酶解物中苦味肽形成机理及蛋白质酶解物苦味的降低、去除及控制方法研究最新进展,主要包括选择性分离、苦味掩盖、酶法及微生物脱苦等。 相似文献
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世界三大饮料与“苦味”物质 总被引:1,自引:0,他引:1
茶、咖啡、可可是世界三大饮料,它们都含有生物碱苦味物质,究竟什么原因使荼、咖啡、可可如此受到人们的喜爱?因为这些苦味成分在食品风味和生理调节方面具有重要作用. 相似文献
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Sing P. Tan Tuyen C. Kha Sophie E. Parks Paul D. Roach 《Food Reviews International》2016,32(2):181-202
Bitter melon (Momordica charantia L.) has traditionally been used as a medicinal food in many developing countries. It is a tropical fruit claimed to have therapeutic effects due to its content of bioactive compounds. The present review is an attempt to highlight the bitter melon varieties, bioactive composition that is linked to its therapeutic effects, especially antidiabetic effect, in vitro and in vivo models, and understanding of the mechanisms of actions of bitter melon that are associated with epidemiological evidences. This paper also outlines a proposed processing scheme aiming to fully utilize bitter melon and add further value to this fruit. 相似文献
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Characteristic Property of Low Bitterness in Protein Hydrolysates by a Novel Soybean Protease D3 总被引:2,自引:0,他引:2
ABSTRACT: Enzymatic hydrolysis is 1 means of improving the functional properties of food protein; however, in most cases, bitter peptides are generated by such treatment, and the resulting product is therefore not acceptable as a food ingredient. We have already reported a novel cysteine protease, D3, purified from germinating soybean cotyledons. Because of its substrate specificities, most hydrophobic amino acid residues in the hydrolysate are presumed not to be located at the peptide termini. It was therefore expected that protein hydrolysate by protease D3 would taste less bitter than other enzymatic hydrolysates. The objective of this study was to demonstrate the low bitterness of protein hydrolysates by protease D3. For that purpose, soy protein and casein hydrolysates were prepared with treatment of protease D3, subtilisin, pepsin, trypsin, and thermolysin, respectively. The bitterness of these hydrolysates was evaluated by measuring points of subjective equality (PSE). The PSE value demonstrated that the protein hydrolysates by protease D3 were significantly less bitter than the other enzymatic hydrolysates, indicating that the products had a taste mild enough to be acceptable as a less-bitter peptide food ingredient. These results suggested that a prominent feature of protease D3 was its capacity to produce less-bitter peptides. Therefore, it is thought that protease D3 could be applied to produce protein hydrolysates for use as ingredients in a variety of food products. 相似文献
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建立了高效液相色谱法对苦瓜啤酒中功效成分--苦瓜皂苷检测的方法。以70%乙醇超声辅助提取苦瓜皂苷,大孔树脂纯化,得苦瓜皂苷纯品。以自制的苦瓜皂苷为标准品与苦瓜啤酒中的苦瓜皂苷进行比较,用ODS-3柱,在205nm下,乙腈和水(55:45,V/V)为流动相,流速1.0ml/min,经反相液相色谱分析,以保留时间定性、峰面积定量。结果得出苦瓜啤酒中苦瓜皂苷的总含量为22.16μg/ml,相对标准偏差<4%,回收率在97.53%~100.32%之间。此方法重现性好且操作简单,是比较理想的检测方法。 相似文献