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Method and equipment for removing aflatoxin from peanut oil

Peanut is one of the crops susceptible to Aspergillus flavus infection. Therefore, the main factor affecting the quality of peanut oil is aflatoxin. Aflatoxin is a liver cancer toxin produced by Aspergillus flavus and Aspergillus parasiticus. detailed]

The State Food and Material Reserve Bureau issued 14 recommended industry standards including "Camellia Seeds"

State Grain and Material Reserve Bureau Notice Guoliangtong [2019] No. 3 According to the "Standardization Law of the People's Republic of China", 14 recommended industry standards such as "Camellia Seeds" are now released, and their numbers and names are as follows: Seed "LS / T31202019" Peony for oil [detailed]

Refining equipment

Vegetable hair oil is just the product of pressing or leaching, it contains substances harmful to consumers. Some of these substances are naturally occurring and some are produced during production or storage. For human consumption, these substances must be carefully removed. Due to them [detailed]

National Standard of the People's Republic of China peanut oil GB 1534-2003

National Standard of the People's Republic of China peanut oil GB 1534-2003 Foreword Some indexes in Table 1, Table 2, Table 3, 5.4, Chapter 7, and Chapter 8 of 5.2 of this standard are mandatory, and the rest are recommended. This standard refers to GB1534-1986 "Peanut Oil", GB / T8615-198 [detailed]

Grease sample and sample method (GB5524-85)

Sample tube: suitable for barreled oil sample. Inner diameter 1.2 ~ 2.5CM, 120cm long glass tube sample tube: suitable for bulk oil sample. It is made of cylindrical aluminum cylinder, with a capacity of about 0.5L, with a bottom and a plug. One coaxial barrel stopper is installed at the center of the two circles of the cover and the bottom for sample injection. There are two lifting rings on the lid, one lifting ring on the barrel plug, tied with a string, and three feet on the bottom of the barrel. Sample bottle: ground mouth bottle, capacity 1 ~ 4Kg. (2) Method of sample preparation 1. The method of sample preparation by barrel oil (1) Sample preparation is as follows: 7 barrels or less: sample by barrel. Below 10 barrels: no less than 7 barrels. 11 to 50 barrels: not less than 10 barrels. 51 ~ 100 barrels: not less than 15 barrels [detailed]

Determination of oil refractive index (GB5527-85)

Determination of oil refractive index (GB5527-85) (2) reagent ether; ethanol (3) operation method 1, calibration instrument: level the instrument, use absorbent cotton dipped in ether to clean the upper and lower prisms, insert the thermometer at the thermometer seat. With a thermometer. Calibrate the instrument with a substance with a known refractive index (commonly used pure water or a-bromobenzene or standard glass for calibration). If the refractive index of the calibration substance does not meet, use the small key to turn the small screw under the eyepiece to change the brightness. The dividing line adjustment tangent is at the intersection of the cross lines. 2. Determination: Take two drops of the mixed and filtered sample with a round glass and drop it on the prism (the glass should not touch the mirror surface). Turn the upper prism and close the two prisms. About the scriptures [detailed]

Determination of moisture and volatile matter in oils and fats (GB5528-85)

Method for determination of moisture and volatile matter in oils and fats (GB5528-85) Electric oven 105 ° C constant weight method is suitable for non-drying oil, electric hot plate method is suitable for semi-drying oil and dry oil, vacuum oven method is suitable for non-drying oil, Semi-dry and dry oils. (I) Oven 105 ° C constant weight method 1. Instruments and utensils Electric constant temperature oven; Drying box with discolored silica gel; Balance: Sensitive amount 0.0001g; Beaker: 50ml; Weighing dish: Capacity about 30-50ml. 2. Operation method Use a weighing dish that has been baked to constant weight Weigh about 10g of the mixed sample (w is accurate to 0.001g), bake at 105 ± 2 ° C for 90min, take out and cool, and weigh. Bake for 20min until before [detailed]

Determination of grease impurities (GB5529-85)

Determination of oil and fat impurities (GB5529-85) Impurities in vegetable oils and fats are residues insoluble in organic solvents such as petroleum ether. (I) Apparatus and appliances suction pump; suction bottle; safety bottle; No. 2 glass sand core funnel; rubber tube; weighing dish; tweezers, measuring cylinder, glass rod; balance: 0.0001g, 0.1g. (2) Reagent petroleum ether (boiling range ~ 60 ~ 90 ℃); 95% ethanol; pickled asbestos; absorbent cotton; quantitative filter paper (replaced asbestos) (3) Operation method 1. Prepare the suction device: Connect the suction pump, safety bottle and suction bottle with a hose. Asbestos is divided into two parts, coarse and fine with water, first with thick, then with fine asbestos bedding glass sand core funnel (about 3mm thick) [detailed]

Determination of oil acid value (GB5530—85)

Acid value refers to the number of milligrams of potassium hydroxide required to neutralize free fatty acids in oil and fat in 1 g of oil and fat. (I) Instruments and utensils burettes; Erlenmeyer flasks: 250ml; reagent bottles; volumetric flasks, pipettes, weighing bottles, etc .; balances: 0.001g. (B) reagent 0.1N potassium hydroxide (or sodium hydroxide) standard solution; neutral ether-ethanol (2: 1) mixed solvent: just before use, titrate with 0.1N alkaline solution to neutrality. Indicator: 1% phenolphthalein ethanol solution. (Three) operation methods [detailed]

Grease heating test (GB5531-85)

Grease heating test (GB553185) (1) Universal electric furnace for instruments and appliances; metal plate (sand bath plate) or asbestos net filled with fine sand; beaker: 100ml; thermometer: 300 ~ 350 ℃; iron pillar and so on. (II) Operation method: Put about 50ml of the mixed sample into a 100ml beaker, place it on an electric furnace with a sand bath to heat it, and hang the thermometer with an iron pillar so that the mercury ball is exactly in the center of the sample and heat it within 16-18 minutes. The temperature of the sample was raised to 280 ° C (the linseed oil was heated to 289 ° C), the beaker was removed, and the amount of precipitates and the color of the oil were observed while hot. After cooling to room temperature, observe again. (III) Test results The heating test of vegetable fats and oils is only a simple method to identify the content of phospholipids in fats and oils, not [detailed]

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