芝麻饼粕蛋白应用进展

该文综述芝麻饼粕蛋白营养特性、提取方法及其功能性和应用,并展望芝麻饼粕蛋白应用前景。     

小磨麻油副产物芝麻渣的成分分析及综合利用研究

在小磨麻油生产过程中产生大量的副产物芝麻渣,如何利用十分重要,对芝麻渣的化学成分进行了分析,并根据其组成成分及营养特点提出了综合利用的方法。     

不同产地和品种芝麻营养成分差异分析

为分析不同产地和品种芝麻之间营养品质差异，以及营养品质之间的相关性，选取了山东省、河北省和湖南省200份芝麻样品，测定芝麻中脂肪、蛋白质、芝麻素和芝麻林素含量，并进行差异性和相关性分析。结果表明，不同芝麻品种之间蛋白质、脂肪、芝麻素和芝麻林素的平均含量分别为27.07%、52.27%、3.34 g/kg和1.48 g/kg。不同种皮颜色的芝麻营养品质略有差异，但差异不显著。山东省和河北省芝麻的蛋白质、脂肪含量显著高于湖南省芝麻(P<0.05)。河北省芝麻的芝麻素含量显著高于湖南省(P<0.05)，但山东省、湖南省之间差异不显著。3个省份之间的芝麻林素含量差异不显著。蛋白质与脂肪含量间呈极显著负相关(P<0.01)，芝麻素与脂肪含量间呈显著正相关，相关系数为0.145(P<0.05)，这与之前的研究结果一致。芝麻素与芝麻林素含量间呈极显著正相关(P<0.01)。蛋白质、脂肪与芝麻林素之间相关性不显著。     

芝麻的营养成分与食疗保健作用

芝麻含有丰富的营养及生理活性成分,具有很强的营养保健功能。本文阐述了芝麻的营养成分及其保健功能,并介绍了一些常用的芝麻食疗配方。     

小磨香油副产物芝麻渣的综合利用

本文对小磨香油生产中的副产物芝麻渣的化学成分进行了分析，并根据其营养特点提出了综合利用的方向．     

用生物技术改善芝麻渣适口性的研究

芝麻渣营养丰富，但适口性差。用微生物发酵的方法处理芝麻渣可改善其适口性，并能提高粗蛋白含量。     

芝麻的营养与功能价值评价研究进展

芝麻是一种药食同源的重要食品,具有较高的营养价值。近年来研究表明,芝麻中的活性组分有诸多功能价值。综述了芝麻的营养组分以及现代生命科学对芝麻木酚素类物质,如芝麻素、芝麻酚等功能价值的研究,并展望其未来发展,为进一步研究开发芝麻提供支撑。     

小磨香油副产物芝麻渣的综合利用

本文对小磨香油生产中的副产物芝麻渣的化学成分进行了分析，并根据其营养特点指出了综合利用的方向。     

核桃芝麻乳生产工艺研究

以核桃、芝麻、花生等植物蛋白为主要原料，运用食物营养和功效互补原理精制而成的核桃芝麻乳是植物蛋白深度加工领域中极具开发价值的产品。本文探讨了生产工艺和产品稳定性。     

芝麻、大豆混合乳饮料的研究

介绍了以芝麻、大豆为主要原料的混合乳饮料的生产工艺过程，对生产过程中的技术问题进行了探讨，并对混合乳饮料进行了营养和感官评价。     

炒芝麻风味的分离与鉴定

通过特别设计制造的电热解析器解析出香气成分,并收集在用液氮(-196℃)冷却的冷阱中。根据所得的质谱图确定了29个化合物的结构,包括几种在炒芝麻风味研究中未见报道的含硫化合物,获得了中国安徽省宣城黑芝麻的焙炒香味。     

Effect of endogenous antioxidants of sesame seeds and sesame oil to the thermal stability of edible vegetable oils

Differently processed sesame seeds were used for the preparation of sesamol, seed extract, oil extract or unsaponifiable matter. Analysis of these sesame extracts revealed that dehulling and roasting of seeds had an adverse effect on their lignan and phenolic compounds content. Various concentrations of the extracts were incorporated in vegetable oils and their effectiveness in retarding the oxidative deterioration of oils was evaluated. Additionally, the formation of oxidation products in these oil samples was correlated with their antioxidant activity and their sesamol and phenolic compounds content. Results indicated that decomposition of phenolic compounds present in oil samples induced a significant reduction in their linoleic acid peroxidation inhibition capacity and a corresponding increase in their oxidative rancidity. Sesame seed extract was the most effective in protecting oils from oxidation, suggesting that seed extract, especially the one prepared from coated-unroasted sesame seeds, may have potential application as a source of natural antioxidants in oil industry.     

芝麻催乳食品的研制及功效研究

本文研制开发了一种以芝麻为主要原料的催乳食品,并对其功效进行了论证,结果表明乳母服用后见效快且安全可靠。     

芝麻油中掺棉籽油的分光光度法研究

研究了用分光光度法测定麻油的掺假情况，该方法具有操作简单，准确度高等特点，可以定量测定芝麻油的纯度。并对4种掺假芝麻油样品进行了检验验证，其变异系数均小于5％。     

Variation of sesamin,sesamolin and tocopherols in sesame (Sesamum indicum L.) seeds and oil products in Thailand

Sesame (Sesamum indicum L.) seed and oil contain abundant lignans, including sesamin, sesamolin and lignan glycosides. The aim of the present study was to determine sesamin, sesamolin and tocopherol contents in sesame seed and oil available in Thailand. The results showed that there was a large variation of sesamin and sesamolin contents in products. The distribution plot of sesamin and sesamolin contents in seeds showed that the mean values of sesamin and sesamolin were 1.55 mg/g (SD = 1.63; range n.d.–7.23 mg/g) and 0.62 mg/g (SD = 0.48; range n.d.–2.25 mg/g), respectively. The range of total tocopherols of these sesame lines was 50.9–211 μg/g seed. In commercial sesame oils, the ranges of sesamin and sesamolin were 0.93–2.89 mg/g oil and 0.30–0.74 mg/g oil, respectively, and tocopherol contents were 304–647 μg/g oil. The study reveals the extensive variability in sesamin, sesamolin and tocopherol contents among sesame products.     

芝麻蛋白发泡性、持水力的理论研究

本文比较系统地研究了芝麻蛋白的发泡性和持水力等功能特性，探讨了不同蛋白质浓度、ｐＨ值、离子强度和温度因素对芝麻蛋白发泡性和持水力的影响，进行了芝麻蛋白功能特性的变化规律的研究，从理论上解释了芝麻蛋白的发泡性以及持水力的变化特点，为芝麻蛋白在食品工业上的应用提供了依据。     

芝麻主要过敏原油质蛋白的基因克隆和原核表达

为克隆黑、白芝麻主要过敏原油质蛋白Oleosins的基因并在原核细胞中对其进行表达,本研究分别提取黑、白芝麻的总RNA,逆转录合成cDNA,根据序列设计简并引物,扩增芝麻主要过敏原油质蛋白Oleosins基因的完整开放阅读框,并与pET-28a载体连接,测序鉴定后转化大肠杆菌E.coliBL21（DE3）及用IPTG诱导表达。结果表明克隆获得黑、白芝麻主要过敏原油质蛋白Oleosins的全长基因约为438bp的开放阅读框（包括终止密码子）,编码145个氨基酸。所编码的蛋白相对分子质量约为15.5kDa,为小分子量蛋白,等电点为5.18,与理论值相符。序列同源性分析发现其与数据库中已知的黑、白芝麻油质蛋白Oleosins基因同源性很高（GenBank黑、白芝麻油质蛋白基因登录号分别为EU999158和EU999159）,并在DE3中高效表达。     

Production of set yoghurt analogue through replacement of milk fat with canola and sesame oil

The aim of this study was to determine the effect of fat level and composition on chemical, textural, microbial and sensory properties of set yoghurt analogue. The best fat level for production of yoghurt analogue was found to be 2% (w/v). Studies on the effect of fat composition (canola‐to‐sesame oil ratios of 2.0/0, 1.3/0.7, 0.7/1.3, 2.0/0) indicated the superior performance of pure sesame oil. Increasing the canola‐to‐sesame oil ratio generally resulted in an inferior product. Replacement of milk fat by vegetable oils yielded yoghurts with a lower saturated fatty acid content and less firmness.     

Effect of oilseed protein concentrates and exogenous amino acids on the dialysability of iron and zinc

Iron deficiency anaemia and zinc deficiency have been persistent public health problems worldwide. Both deficiencies are attributed to poor bioavailability of minerals. The investigation was undertaken to study the effect of oilseed protein concentrates and exogenous amino acids on the dialysability of iron and zinc. Corn flour matrices with 10–20 g protein/100 g were formulated using groundnut and sesame protein concentrates. Dialysability of iron and zinc in natural and mineral fortified matrices was analysed. The effect of exogenous cysteine, histidine, glycine and lysine on mineral dialysability was analysed in groundnut and sesame protein concentrates. Dialysability of iron was enhanced with increasing protein concentration in matrices with groundnut protein but decreased in matrices with sesame protein. Dialysability of zinc increased with increasing protein concentration with both the protein concentrates. Among the amino acids, histidine enhanced dialysability of iron in natural groundnut and sesame protein concentrates, glycine in fortified groundnut and lysine in fortified sesame protein concentrates to a considerable extent. Dialysability of zinc was enhanced in natural groundnut, natural and fortified sesame protein concentrates by all amino acids. Amino acids definitely promotes the dialysability of iron and zinc, but its enhancing ability is highly specific to the food matrix.     

可变形芝麻和花生饼的渗透率试验与数值模拟

进行了芝麻与花生饼植物油料的压榨渗透率试验。考虑芝麻与花生饼的孔隙率、渗透率在压榨过程中的变化,根据流固耦合渗流理论,建立了可变形芝麻与花生饼的一维渗流微分方程,给出了一维定常耦合渗流问题的解析解。在渗透率的试验基础上,采用改进模拟退火计算方法对与芝麻与花生饼渗透率模型参数进行了反演。研究表明:饼中孔隙压力与渗透率均为非线性分布;渗透率与有效应力呈指数关系。