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Technology for preparing ferulic acid and phytic acid from rice bran

A ferulic acid and phytic acid technology, applied in the separation/purification of carboxylic acid compounds, chemical instruments and methods, compounds of Group 5/15 elements of the periodic table, etc., can solve the problem of difficult control of the replacement end point and high calcium and magnesium content , heating and other issues, to achieve the effect of easy continuous production, low protein content and high product quality

Inactive Publication Date: 2010-10-20
NANJING ZELANG AGRI DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the patent CN1563019A proposes "the ion exchange extraction process of phytic acid", using two neutralization filtration, acid hydrolysis, and using a large amount of lime water, so that the calcium and magnesium content in phytic acid calcium and magnesium is too high, which increases the workload of later refining , while increasing consumption and cost
Chinese patent CN1047675A "method for preparing phytic acid with phytin as raw material" adopts oxalic acid method to produce phytic acid, which requires heating, increases energy consumption, and the replacement end point is not easy to control, with many wastes and low efficiency
Patent CN101597304A "New method for extracting phytic acid" uses organic acid and sodium nitrate to neutralize acid and alkali, the replacement is not complete, no ion exchange is performed, and the residual amount of impurity ions is large, which affects the quality of phytic acid

Method used

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  • Technology for preparing ferulic acid and phytic acid from rice bran
  • Technology for preparing ferulic acid and phytic acid from rice bran

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Crush the rice bran through a 20-mesh sieve, put 100kg of rice bran into an extraction tank, add 600L of calcium hydroxide aqueous solution with a pH of 12 and 75g of vitamin C, heat and dynamically soak for 1.5 hours, extract twice, and combine the two filtrates to obtain 1150L of filtrate and filter residue.

[0046] Pass the filtrate through the 724-type cation exchange resin, collect the infusion solution and concentrate under reduced pressure, and mix n-hexane-ethyl acetate-ethanol-water with a volume ratio of 5:3:5:1 in the separatory funnel, shake well Leave to stand for stratification, get the upper phase as the stationary phase, and the lower phase mobile phase, dissolve 200 mg of the concentrated solution with 40 ml of the upper and lower phase mixed solution of 1:1 to separate, collect the ferulic acid component peak, and freeze-dry to obtain the ferulic acid Ferulic acid solid.

[0047] Add 400L of pH2 aqueous solution adjusted to the filter residue with hy...

Embodiment 2

[0049] Grind the rice bran through a 40-mesh sieve, put 200kg of rice bran into the extraction tank, add 1400L of calcium hydroxide aqueous solution with a pH of 13 and 150g of vitamin C, heat and dynamically soak for 1 hour, extract twice, and combine the two filtrates to obtain 2700L of filtrate and filter residue.

[0050]Pass the filtrate through 732-type cation exchange resin, collect the infusion solution and concentrate under reduced pressure, mix n-hexane-acetone-ethanol-water with a volume ratio of 6:3:7:1 in a separatory funnel, shake well and let stand Layering, the upper phase is taken as the stationary phase, and the lower phase mobile phase is separated by dissolving 200 mg of the concentrated solution in 40 ml of the upper and lower phase mixed solution of 1: 1, collecting the ferulic acid component peak, and freeze-drying to obtain ferulic acid The solid content is above 98%.

[0051] Add 1000L of pH3 aqueous solution to the filter residue adjusted with sulfur...

Embodiment 3

[0053] Crush the rice bran through a 60-mesh sieve, put 400kg of rice bran into an extraction tank, add 3000L of calcium hydroxide aqueous solution with a pH of 11 and 300g of vitamin C, heat and dynamically soak for 1 hour, extract twice, and combine the two filtrates to obtain 5500L of filtrate and filter residue.

[0054] Pass the filtrate through 724-type cation exchange resin, collect the infusion solution and concentrate, mix n-hexane-ethyl acetate-ethanol-water with a volume ratio of 5:4:8:1 in a separatory funnel, shake well and let stand Layering, the upper phase is taken as the stationary phase, and the lower phase mobile phase is separated by dissolving 200 mg of the concentrated solution in 40 ml of the upper and lower phase mixed solution of 1: 1, collecting the ferulic acid component peak, and freeze-drying to obtain ferulic acid The solid content is above 98%.

[0055] Add 2200L of pH3 aqueous solution to the filter residue adjusted with hydrochloric acid, soak...

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Abstract

The invention relates to the technology for preparing ferulic acid and phytic acid from rice bran as raw materials through alkali liquid extraction separation. The ferulic acid extraction process is characterized in that high-purity ferulic acid is obtained through purification and separation by a high-speed reverse flow chromatography method. The phytic acid extraction process is characterized in that the ultrasonic auxiliary extraction and macroporous absorbent resin technology is adopted for preparing the phytic acid. The high-speed reverse flow chromatography method is used for preparing the erulic acid, so the invention has the characteristics of large separation amount, no sample loss, high efficiency, high speed, mild separation environment, solvent saving and the like. In the ultrasonic extraction of the phytic acid, the production time is shortened. When the technology is used for producing the ferulic acid and the phytic acid, the product purity is high, the quality is high, and the industrialization can be easily realized.

Description

Technical field: [0001] The invention relates to a technology for preparing ferulic acid and phytic acid from rice bran, in particular to a method for preparing ferulic acid by high-speed countercurrent chromatography and ion exchange and macroporous resin adsorption technology for preparing phytic acid. Background technique: [0002] Molecular formula of ferulic acid: C 10 h 10 o 4 ;Molecular weight: 194.19 [0003] Chemical name: 3-(4-Hydroxy-3-methoxyphenyl) 2-propenoic acid [0004] English name: 3-(4-hydroxy-3-methoxyphenyl)-2-Propenoic acid [0005] Molecular formula: [0006] [0007] Phytic acid molecular formula: C 6 h 18 o 6 ;Molecular weight: 660.08 [0008] Chemical name: Cyclohexaol-1,2,3,4,5,6-dihydrogen hexaphosphate [0009] Molecular Structure: [0010] [0011] Ferulic acid is slightly soluble in cold water, soluble in hot water, easily soluble in ethanol, methanol, acetone, hardly soluble in benzene and petroleum ether. Ferulic acid extra...

Claims

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Application Information

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IPC IPC(8): C07C59/64C07C51/42C07F9/117
Inventor 苏刘花
Owner NANJING ZELANG AGRI DEV
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