Peanut oil is a relatively easily digestible edible oil. It contains over 80% unsaturated fatty acids, as well as saturated fatty acids such as palmitic acid, stearic acid, and arachidic acid. For the international market, processing peanut oil is indeed a good project, but the crude peanut oil extracted through pressing and solvent extraction methods does not meet edible oil standards. It needs to be refined using peanut oil refining equipment to meet national standards before it can be sold on the market.
The peanut oil refining process involves degumming, deacidification, dehydration, decolorization, deodorization, and dewaxing. What are the main functions of these processes? Huatai Oil Machinery will give you a brief introduction.
1) Degumming: Also known as dephosphorization, this process removes phospholipids, mucilage, resins, proteins, carbohydrates, and trace metals from the crude oil. It generally uses hydration, acid refining, or enzymatic degumming methods.
2) Deacidification: Generally, edible-grade alkali neutralization is used to remove FFA, acidic pigments, sulfides, oil-insoluble impurities, and trace metals from the oil.
3) Washing: This washes away residual soap and water-soluble impurities in the alkali-refined oil.
4) Dehydration: Heating and vacuum drying methods are used to remove water from the refined oil.
5) Decolorization: Adsorbents such as activated clay, aluminum silicate, and activated carbon are used to remove various pigments, colloids, and oxides from the oil.
6) Deodorization or Physical refining: Using the principle of vacuum stripping, this removes low-molecular-weight odor substances, FFA, monoglycerides, diglycerides, sulfides, and thermal decomposition products of pigments from the oil; the main purpose of physical refining is to remove FFA.
7) Dewaxing or Defatting: This process mainly uses freezing, crystallization or winterization crystallization, and fractionation methods to remove waxes or solid fats from the oil.
After the peanut oil has been refined through the above processes, it is then filtered using suitable filtration equipment to remove solid particles, bleaching earth from the decolorized oil, and catalysts from the hydrogenated oil before being packaged and sealed, making it ready for sale on the market.
Henan Huatai Cereals and Oils Machinery Co., Ltd. covers an area of 1000 acres and has served more than 1,000 oil factories for 38+ years. The company is committed to providing customers with technical solutions tailored to their specific needs, high-quality products, and professional services, covering the entire lifecycle from initial consultation, on-site customer verification, technical solution design, full-process technology and equipment design, engineering contracting, and technical services.
Henan Huatai Cereals and Oils Machinery Co., Ltd. mainly offers refining equipment including: animal oil refining equipment, rapeseed oil refining equipment, peanut oil refining equipment, tea seed oil refining equipment, sunflower seed oil refining equipment, walnut oil refining equipment, and other oil processing equipment.
All in all, to consult and purchase edible oil processing machine, you can go to Huatai Oil Machinery. Please leave your inquiry information, such as: the type of your oil seed, machine capacity (TPD, how many tons to process per day), processing technology (Pressing, extraction, refining) or full set of production lines, etc. We will contact you ASAP and send you the complete features and specifications of the equipment. Welcome to visit our factory and for latest quotation.
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