METHODS OF OIL EXTRACTION. Maize having oil content of more than 6% is called high oil maize. The parts of maize seed/kernel are endosperm (82%), germ (embryo and scutellum) (12%); about 80 to 84% of total kernel oil is present in the germ region followed by 12% in aleurone and 5% in endosperm as shown in Fig.
Various methods like cold pressing, solvent, super-critical fluid and aqueous extractions are in practice for oilseed extraction. The use of solvents for oil recovery has shown several drawbacks such as high safety hazard, high energy input, low quality oil, environmental risk, toxicological effects and low quality meal.
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Aqueous oil extraction has emerged as a promising technique for extraction of oil from certain oil-bearing materials e.g. peanut, coconut, maize etc. Recently, enzymatic pre-treatment has emerged as a novel and an effective means to improve the oil yield in cold pressing and aqueous extraction techniques.
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Oil bodies in the form of an adequately dispersed suspension were extracted from maize germ by applying aqueous extraction. The effect on the yield of oil body extraction of parameters, such as pH of aqueous medium, state of germ comminution, and number of successive extraction steps applied, was evaluated, indicating that an extraction yield as high as 95% could be reached when a finely comminuted germ material is extracted 3 times under alkaline conditions.
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Oil bodies in the form of an adequately dispersed suspension were extracted from maize germ by applying aqueous extraction.
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Request PDF | Effect of Enzymatic Aqueous Extraction on Quality Characteristics of Maize Germ Oil During Storage | Enzyme-assisted aqueous extraction (EAAE) method is among the emerging
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Byproduct of oil manufacture, obtained by extraction of maize germs (Zea mays L.), consisting of spent germs to which parts of the endosperm and outer skins may still adhere. This product has a low content in residual oil and results from mechanical pressure followed by solvent extraction. Other name: corn germ meal (USA).
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An industrial by-product rich in maize germ, originating from the milling of maize of different common varieties grown in Northern Greece, was used for the aqueous extraction of oil bodies. All the chemicals used in the experiments were obtained from Sigmaldrich Chemicals Co. 2.2. Preparation of the natural oil-body emulsion
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Oil bodies in the form of an adequately dispersed suspension were extracted from maize germ by applying aqueous extraction. The effect on the yield of oil body extraction of parameters, such as pH of aqueous medium, state of germ comminution, and number of successive extraction steps applied, was evaluated, indicating that an extraction yield as high as 95% could be reached when a finely
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The focus of this work is to produce and refine corn germ oil from the by-product of the local dehulling/degermination of corn germ with soxhlet apparatus using n-hexane as solvent. The extraction was done for duration of three and six hours using 12g each of unsieved sample and various fractions of the sample. Average oil yield were 14.28% and 14.50% for extraction time of three and six hours
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Optimization of water extraction of naturally emulsified oil from maize germ Article in LWT- Food Science and Technology 63(1) 路 September 2015 with 34 Reads How we measure 'reads'
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Byproduct of oil manufacture, obtained by extraction of maize germs (Zea mays L.), consisting of spent germs to which parts of the endosperm and outer skins may still adhere. This product has a low content in residual oil and results from mechanical pressure followed by solvent extraction. Other name: corn germ meal (USA).
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Maize germ meal (corn germ meal) is the by-product of oil extraction from maize germs obtained from maize processing. It is a product of moderate to good nutritive value suitable for all classes of livestock but its composition is highly variable.
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Request PDF | Effect of Enzymatic Aqueous Extraction on Quality Characteristics of Maize Germ Oil During Storage | Enzyme-assisted aqueous extraction (EAAE) method is among the emerging
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Aqueous Extraction of Oil Bodies from Maize Germ (Zea mays) and Characterization of the Resulting Natural Oil-in-Water Emulsion Article in Journal of Agricultural and Food Chemistry 57(12):5591-6
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An industrial by-product rich in maize germ, originating from the milling of maize of different common varieties grown in Northern Greece, was used for the aqueous extraction of oil bodies. All the chemicals used in the experiments were obtained from Sigmaldrich Chemicals Co. 2.2. Preparation of the natural oil-body emulsion
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Oil bodies in the form of an adequately dispersed suspension were extracted from maize germ by applying aqueous extraction. The effect on the yield of oil body extraction of parameters, such as pH of aqueous medium, state of germ comminution, and number of successive extraction steps applied, was evaluated, indicating that an extraction yield as high as 95% could be reached when a finely
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1. Introduction. Traditionally, the extraction of corn germ oil has been done by physical and chemical methods. In these conventional methods, the oil is removed from the milled germ using a conditioning (heating) process, followed by mechanical expelling (prepress) and in some cases ending up with hexane extraction.
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Yellow corn germ/maize is one of the leading agricultural crops in the world; Corn/maize is mainly planted in America, China, Canada, Mexico, Brazil etc. Corn/Maize contains 8% corn germ/maize. That is if you have 100ton corn germ seeds, you can get about 8ton germ. Corn/Maize germ is usually used to make corn germ oil. Corn/Maize germ has 35-40% oil content. The corn germ/maize germ oil process is similiar like rice
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The invention relates to a method for preparing maize germ oil through enzymatic degumming. Specifically, phosphatidase is employed for a degumming treatment of maize crude oil during the refining process. Then after deacidification, decoloration, dewaxing and deodorization, refined maize germ oil can be obtained. Wherein, the degumming treatment comprises acid reaction, alkali neutralization
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Maize germ/ Corn germ oil is extracted from corn germ, which is one of the most commonly used cooking oil. Nowadays a complete corn germ oil production line consists of prepressing workshop, extraction workshop and refining workshop. In prepressing workshop, impurities entrained in corn germ being cleared.
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CEC coupled with calibration data enables speedy sample analysis with adequate component resolution and enhanced detection sensitivity. CEC method can serve as a viable alternative to existing RP-HPLC method and can be used in the routine analysis of tocopherols and tocotrienols in oil samples [42, 10204].
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Main Wheat Germ Oil Extraction Process At present, there are 4 main extraction technology for wheat germ oil processing: supercritical CO 2 fluid extraction, traditional solvent extraction, low temperature pressing and subcritical low temperature extraction. But the some of these methods have a lot of shortcomings.
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The effect of the maize germ oil bodies in the form of a highly stable emulsion as a substitute for cow milk fat globules was investigated on the textural, physicochemical and sensory properties of a yoghurt-like product using a commercial yoghurt culture. Materials and methods 2.1. Materials extraction of oil bodies from the dry maize
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The physical and chemical properties of maize germ oil are described. Especially the composition of triglycerides and phospholipids is regarded and the content of sterines, waxes and tocopheroles is
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Maize-germ oil is obtained from seedlings from the Zea mays L. (Gramineae) by pressing (cold-pressed maize-germ oil) or by extraction, after which it is refined (refined maize-germ oil). Its main use is in cooking, where its high smoke point makes refined corn germ oil a valuable frying oil, but it is also a feedstock used for biodiesel.
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Main Wheat Germ Oil Extraction Process At present, there are 4 main extraction technology for wheat germ oil processing: supercritical CO 2 fluid extraction, traditional solvent extraction, low temperature pressing and subcritical low temperature extraction. But the some of these methods have a lot of shortcomings.
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Oil extraction from corn germ has traditionally been carried out on the whole grain using such methods as solvent extraction, mechanical pressing and recently supercritical CO 2 In thisextraction. mini review, this potential reveals the techniques, kinetics and thermodynamics of corn germ oil extraction. Here, authors review contemporary advancement in
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Maize germ meal (corn germ meal) is the by-product of oil extraction from maize germs obtained from maize processing. It is a product of moderate to good nutritive value suitable for all classes of livestock but its composition is highly variable.
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Development of an aqueous enzymatic extraction method for dry milled corn germ. There is a need to develop cost-effective alternatives to hexane extraction for corn germ oil extraction. A method was developed to use dry milled corn germ as a feedstock to obtain corn germ oil using aqueous enzymatic extraction.
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CEC coupled with calibration data enables speedy sample analysis with adequate component resolution and enhanced detection sensitivity. CEC method can serve as a viable alternative to existing RP-HPLC method and can be used in the routine analysis of tocopherols and tocotrienols in oil samples [42, 10204].
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Extraction of this oil from wheat germ is important for the effective utilization of its various potential nutraceuticals that have reported health benefits. This review also explains detailed chemical composition, processing, functional activities, and potential utilization of wheat germ oil.
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A process for extracting corn germ embyro oil and recovering protein includes immersing corn germ embryo in hot solution of citric acid, dripdrying, adding water, grinidng, and acidic proteinase and cellulase, enzymolyzing, centrifugal separating to obtain corn germ embryo oil, mixing the immersing liquid with separated liquid, nano-filter, vacuum concentrating, and spray drying to obtain protein.
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Conventional oil extraction method involves various volatile organic solvents (VOCs) that are considered as toxic and probable carcinogenic solvents. Though the risk to human health and environmental contamination exist while using these organic solvents in various processes, they are primarily being used on the back of their easy availability.
Get PriceOil extraction from corn germ has traditionally been carried out on the whole grain using such methods as solvent extraction, mechanical pressing and recently supercritical CO 2 In thisextraction. mini review, this potential reveals the techniques, kinetics and thermodynamics of corn germ oil extraction. Here, authors review contemporary advancement in
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Byproduct of oil manufacture, obtained by extraction of maize germs (Zea mays L.), consisting of spent germs to which parts of the endosperm and outer skins may still adhere. This product has a high content in residual oil and results from mechanical pressure only. Other name: corn germ meal (USA).
Get PriceThe physicochemical properties and the oxidative stability of Egyptian corn germ oil produced by aqueous enzymatic extraction using fungal cellulase, bacterial and bovine proteases, either individually or in combination were compared to that extracted by hexane.
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In plants, starch appears as small granules, insoluble in cold water, the size (between 3 and 100 microns) and form vary according to the origin. The starch industry separates the components of the plant: starch, protein, cellulose envelope, soluble fractions and in the case of maize, the germ from which oil will be extracted.
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Corn germ oil/maize oil pretreatment process: We supply different pretreatment methods for edible oil extraction machine with different oil content. Generally, for high oil plants such as groundnut/peanut, rapeseed, cottonseed, first pre-press to the reasonable level and then extract. Corn germ oil/maize oil press process: 1.
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