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008 110908s1982 th uu|m rtt 0| a1eng d
035 _a.b10043482
099 9 _aAIT Thesis no. AE-82-14
100 1 _aSaturnino, Melania Ventura
245 1 2 _aA study of expressing peanut oil using a continuous screw press
260 _aBangkok :
_bAsian Institute of Technology,
_c1982
300 _a52 p.
490 1 _aThesis ;
_vno. AE-82-14
500 _aA thesis submitted in partial fulfilment of the requirement for the degree of Master of Engineering, School of Environment, Resources and Development
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1982
520 _aA study of expressing raw and heat-treated peanuts using a vertical continuous screw press was made. The effects of particle size and different modes of thermal preparation such as blanching, steaming and cooking upon oil yield were evaluated. The pressing of raw whole peanuts resulted in maximum oil yield and best quality in comparison with the pressing of smaller sizes. For raw peanuts, the motor amperage was determined to be a function of the screw speed and the peanut size only. The oil yield, however, could not be significantly related with any of the operational factors for raw peanuts. The optimum speeds for pressing raw and steamed peanuts were determined close to 31 and 25 rpm, respectively. The feed moisture content for general smooth operation of the screw press ranged from 7.0 to 9.5 per cent (w.b.). In pressing of steamed and blanched peanuts, the oil yield could be related with the feed moisture content and motor amperage based on the stepwise multiple linear regression analysis. A comparative evaluation of different peanut preparation modes prior to pressing revealed that conventional method of cooking gave best results in terms of oil yield, quality and energy requirements.
650 0 _aPeanut oil
700 1 _aJindal, Vinod Kumar,
_eChairperson
700 1 _aKim, Kong-Hwan,
_eExamination Committee
700 1 _aKoike, Masayuki,
_eExamination Committee
710 2 _aCarl Duisberg Gessellschaft, e.v. (CDG) Federal Republic of Germany,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. AE-82-14
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B21137
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