Study on the Aqueous Extract Method makes Sesame Oil.

• Main Authors: Chien-Yin Liu, 劉劍音
• Other Authors: 段葉芳
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/cdvw3p

碩士 === 國立臺北科技大學 === 化學工程研究所 === 98 === The sesame is one of the oldest crops for oil which includes its highly rate with oil and high nutrition, and it is also edible. Moreover, its chemical stability can be used in anti-oxidant, reducing the cholesterol and removing the internal free radicals. The sesame contains various kinds of natural anti-oxidant materials, such as chemical compound and cholesterol of plants--sesaminol, seasamol, tocopherol, ect. The black sesame oil usually is used with cooking and for nourishing; the white sesame oil comes in cold with sauce and dip. The sesames oil come in different ways, like Mechanical Method, Pomade Extraction Method, Aqueous Extraction Method and so on. People in nowadays adopt the methods with far-infrared, microwave, pressure cooking and others. The food industry generally adopts the Compression Method, which is easy to administrate in production and in quantity, and it is able to operate soaking out oil for many times. However, it is highly influential by the heat of raging fire during the fry process and renders the flavor of over-burned and bitterness. Therefore, the fragrant in Compression Method is weaker than the fragrant in Aqueous Extract Method of Aqueous Extraction Method while we choose white sesame as the material in oil production. This research observes the Aqueous Extract Method operated by the North Sesame Oil factory with the white sesame, imported from Myanmar. In the process, we try to stir with adding different proportions of water. Then, we design agitation apparatus to stir with adding different proportion of water, and the outcome presents itself that when the factory uses Pitched Curve Paddle Impeller with adding water respectively in the proportion of 50%, 20% and 15%，oil is produced in 85.35% as output. This is the best proposition of adding water in Pitched Curve Paddle Impeller. While we add water in the Helical-Ribbon with Screw Impeller respectively with the proportion of 60%, 20% and 15%，which are the best proportions in process, the producing rate achieves 93.43% as output. After changing the agitation apparatus, the interval of the sesame mixed with water is shortened, the power of wastage diminished, and the producing rate creased. Though the oil produced by Aqueous Extract Method has unique fragrant, it’s difficult in continuous operation. For extending the endurance of this method, what can be done is to carry on improving its producing process and reduce the advantages of time and manpower consuming in order to increase its Return on Investment.