Biotechnological formulation and microbiological transformation technology that high omega-3 fatty acid and anti-oxidant nutritional oil thereof are produced
(1) technical field: the present invention relates to a kind of microbial transformation production method of nutritive food, particularly a kind of biotechnological formulation and microbiological transformation technology that can improve omega-fatty acid in the nutritional oil and antioxidant property thereof.
(2) background technology: people are common to notice that should not too much eat saturated fatty acid is main livestock raised for meat fat, mainly eats the understanding mistaken ideas that vegetables oil can be healthy and safe but still exist.The World Health Organization and Food and Argriculture OrganizationFAO hold " ω-3 series fatty acid and healthy international conference " (1990.3.23, Washington) statement: " in view of existing positive evidence shows; ω-3 series fatty acid has indispensable and irreplaceable effect to human development and health; suggestion all should contain ω-3 series fatty acid in baby and adult's food ".
In recent decades, the way that solves this indispensable lipid acid is: use organic alcoholysis technology, from the linseed oil of Oils,glyceridic,cod-liver, marine alga and the inedibilities such as cod (Alcoholysis), extract the mixture with triglycerides thing, adopt again the organic chemical synthesis method to change into EPA and DHA, this kind technical matters all is difficult to satisfy the great demand of edible and health industry from contrasts such as resource, technical difficulty and renewable cost of development.
Recently, China has carried out and has used physical squeezing, solvent method (sherwood oil method), SC-CO
2Supercritical extraction and water vapor (250 ℃) carry out the methods such as cracking to linolein, carry out the exploitation of omega-fatty acid series product, above development technique exists in various degree: extraction yield is not high, facility investment is large, temperature of reaction is high, produce easily side reaction, unsaturated free group is oxidized to the shortcomings such as trans fatty acid nuisance, to objectionable constituent such as linamarin in the oleum lini and white arteries and veins root glycosides, it is large to separate the elimination difficulty, there are the shortcomings such as the easy oxidation of long-chain unsaturated fatty acid too in radix cynanchi atrati-perilla oil, suddenly treats further to adopt economical, conversion technology applicable and safety is developed.
(3) summary of the invention
1, radix cynanchi atrati-purple perilla oilseeds, the biotechnological formulation that Maotai-flavor liquor grain and proteolytic ferment are developed into, detect through for many years, preparation adopts that unit plantation output is high, the equal good plant (Latin literary fame: perilla frutescent arguta, perilla furtesceng prispa, perilla fratescens (L) Britt) of oil length and a-linolenic acid (ALA); Still residual in the Guizhou Maotai-flavor liquor production waste matter have couple Gao Re and stable organic oxidation-resistant things such as phenols of alkali; The proteolysis microbial enzyme adopts: Aspergillug oryzae, Aspergillus niger As3.350, Saccharomyces ceremisiae 1300.
2, lipid acid is carried out the preposition fermentation of microbial enzyme take the a-linolenic acid as main oilseeds and transform, the unsaturated free radical of long-chain polyenoid of ALA is combined with anti-oxidant phenols, produce resistance of oxidation; Simultaneously, through the conversion of proteolysis microbial enzyme to unsaturated group, under the participation of remaining ethanol, fractional saturation lipid acid is easier to be stayed in the seed dregs of rice in waste matter, and the polyenoid long-chain unsaturated fatty acid relatively ratio in oil improves; Under the low temperature fermentation condition, can avoid changing into the generation of the harmful side products such as trans fatty acid or erucic acid, can improve and promote mouthfeel and the quality guaranteed period of edible nourishing oil.After the preposition low temperature fermentation, material is dewatered, carry out physical squeezing again, can obtain all good nutrient health-care function oil of color, seed dregs of rice by product is the feeding biotechnological formulation that egg fowl and milk animal output are rich in the omega-3 unsaturated fatty acid livestock product.
3, the beneficial effect of the invention: compare with conventional food vegetables oil processing technology, under the low temperature fermentation condition, the phenols that Nai Gaore in the Maotai-flavor liquor grain and alkaline environment are stable, with the unsaturated combined with radical of the serial polyenoid of ω-3, produce stable resistance of oxidation, this contains the highest poor shortcoming of crude vegetal resistance of oxidation of ALA to have solved radix cynanchi atrati-purple perilla, impel its extensive popularization in the nutritive health-care field to lay the first stone: after fermentation transforms, partly saturated fatty acid is relatively stable remains in the withered dregs of rice, and omega-fatty acid ratio in oil increases 3%-5%; Through the preposition conversion of microbial protease, the polyenoid long-chain unsaturated fatty acid is in receptor (comprising human body) Digestive tract, and is also easier in conversions such as DHA, promoted the specific absorption of this nutritive ingredient and the increase of nourishing function.The facility investment of this kind microbial transformation fermentation method for producing is few, productive rate is high, and tooling cost is low, achieves many things at one stroke, and economic benefit significantly improves.
(4) embodiment
Get two each 30-50 kilogram of strain purple perilla (radix cynanchi atrati) seed (dry weight, lower same), Maotai-flavor liquor groove 5-30 kilogram, the hydrolysising microorganism enzyme is an amount of → and stirrer homogenization → rod formula pulverizer coarse crushing is to 30-50 ℃ of 0.5mm → enter hydrothermal pot (200 liter) → insulation, through solid state fermentation → discharging in 12-72 hour → cold blast engine dehydration → ultraviolet lamp sterilization → high pressure pressure filter fluid/withered dregs of rice separation.
The gained liquid oil is aobvious yellowish transparent, the special similar amber aroma of tool, and color further promotes, and after the phenols grafting addition reaction of the unsaturated free radical of ω-3 polyenoid and heat-resisting alkali resistant, makes long-chain unsaturated fatty acid obtain resistance of oxidation, extends the shelf life; Oil yield can reach 40%-50%; The a-linolenic acid content can reach 62%-66%, improves 3%-5% than conventional physical milling process or solvent method (sherwood oil method); After microbial fermentation transforms, be more conducive to the absorption of human body, to the more unsaturated DHA lipid acid conversion of long-chain, strengthen nutrient health-care function, more be conducive to the gene disease of the multiple harm humans of assisting therapy.This product may be used on edible nourishing mixed oil, health care (oil) product, high density assisting therapy omega-fatty acid oil, cosmetic products and characteristic tourism food etc.
The withered dregs of rice of by product that this production method produces are the feeding biological supplementing preparation of best egg fowl, milk animal and livestock raised for meat production high omega-3 fatty acid nutrient egg, breast and meat.
Important vegetables oil main fatty acid and healthy contrast table thereof