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首页> 外文期刊>Advance journal of food science and technology >Physicochemical and Sensory Properties of Boiled Prosopis africana Seed Endosperm Macerated in Various Ethanol-water Mixtures
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Physicochemical and Sensory Properties of Boiled Prosopis africana Seed Endosperm Macerated in Various Ethanol-water Mixtures

机译：乙醇-水混合溶液中浸泡后煮沸的非洲象拟象种子胚乳的理化和感官特性

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The processing of boiled Prosopis africana endosperm for better utilization using ethanol-water mixtures was explored. Prosopis africana seeds were boiled for 5 h to softness and the endosperm fraction separated from the kernel (cotyledon) and the hull. The endosperm was divided into five equal parts which were individually macerated in absolute (Abs) ethanol, 80, 60 and 40% ethanol in water prior to sun-drying (32±2℃, 3 days). The fifth sample, which served as control, was left untreated with ethanol. The samples were ground using a hand milling machine and analyzed for the proximate composition, water and oil absorption capacities, foaming capacity and foam stability, bulk density, emulsion activity and stability, colour preference, texture preference and overall acceptability. The results revealed that treatment of the endosperm significantly affected the moisture, protein, fat, ash and carbohydrate contents; water and oil absorption capacities, foaming capacity and foam stability; and the sensory properties. The moisture and protein contents, oil absorption capacity, foam stability, appearance, texture and overall acceptability of endosperm treated with 40% ethanol in water differed significantly (p＜0.05) from that treated with absolute ethanol. There was also significant (p＜0.05) differences in moisture, protein and carbohydrate contents, oil absorption capacity and foam stability of the 40% ethanol in water treated endosperm and the control. Slightly above 40% ethanol in water (50-60%) should be used to macerate Prosopis africana endosperm to reduce the cost of using absolute ethanol.
机译：探索了使用乙醇-水混合物处理沸腾的非洲象拟象胚乳的加工方法，以提高利用率。将非洲象拟象（Prosopis africana）的种子煮沸5小时使其变软，并将胚乳部分与籽粒（子叶）和外壳分离开。将胚乳分为五个等份，分别在无水（Abs）乙醇，80％，60％和40％的乙醇水溶液中浸软，然后晒干（32±2℃，3天）。用作对照的第五个样品未经乙醇处理。使用手动研磨机研磨样品，并分析其附近的组成，吸水和吸油能力，发泡能力和泡沫稳定性，堆积密度，乳液活性和稳定性，颜色偏好，质地偏好和总体可接受性。结果表明，胚乳的处理显着影响水分，蛋白质，脂肪，灰分和碳水化合物的含量。吸水和吸油能力，发泡能力和泡沫稳定性；和感官特性。 40％乙醇水溶液处理后的胚乳的水分和蛋白质含量，吸油量，泡沫稳定性，外观，质地和总体可接受性与纯乙醇处理相比有显着差异（p ＜0.05）。水处理的胚乳和对照中40％乙醇的水分，蛋白质和碳水化合物含量，吸油量和泡沫稳定性也存在显着（p ＜0.05）差异。略高于40％的乙醇水溶液（50-60％）可用于浸泡非洲象鼻象的胚乳，以减少使用无水乙醇的成本。

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