CN101779705A - Production method of grape seed oil - Google Patents
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- CN101779705A CN101779705A CN201010112816.5A CN201010112816A CN101779705A CN 101779705 A CN101779705 A CN 101779705A CN 201010112816 A CN201010112816 A CN 201010112816A CN 101779705 A CN101779705 A CN 101779705A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 53
- 235000019198 oils Nutrition 0.000 claims abstract description 46
- 241000219095 Vitis Species 0.000 claims abstract description 33
- 235000009754 Vitis X bourquina Nutrition 0.000 claims abstract description 33
- 235000012333 Vitis X labruscana Nutrition 0.000 claims abstract description 33
- 235000014787 Vitis vinifera Nutrition 0.000 claims abstract description 33
- 239000010779 crude oil Substances 0.000 claims abstract description 30
- 238000009874 alkali refining Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000007670 refining Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
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- 229940088598 enzyme Drugs 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 108091005804 Peptidases Proteins 0.000 claims description 9
- 239000004365 Protease Substances 0.000 claims description 9
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims description 9
- 238000004061 bleaching Methods 0.000 claims description 9
- 239000008103 glucose Substances 0.000 claims description 9
- 108010002430 hemicellulase Proteins 0.000 claims description 9
- 229940059442 hemicellulase Drugs 0.000 claims description 9
- 108010059892 Cellulase Proteins 0.000 claims description 8
- 229940106157 cellulase Drugs 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 230000008014 freezing Effects 0.000 claims description 7
- 238000007710 freezing Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 7
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000003825 pressing Methods 0.000 abstract description 7
- 235000013305 food Nutrition 0.000 abstract description 2
- 235000015097 nutrients Nutrition 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 102000004169 proteins and genes Human genes 0.000 abstract description 2
- 108090000623 proteins and genes Proteins 0.000 abstract description 2
- 230000036571 hydration Effects 0.000 abstract 2
- 238000006703 hydration reaction Methods 0.000 abstract 2
- XFZJEEAOWLFHDH-UHFFFAOYSA-N (2R,2'R,3R,3'R,4R)-3,3',4',5,7-Pentahydroxyflavan(48)-3,3',4',5,7-pentahydroxyflavan Natural products C=12OC(C=3C=C(O)C(O)=CC=3)C(O)CC2=C(O)C=C(O)C=1C(C1=C(O)C=C(O)C=C1O1)C(O)C1C1=CC=C(O)C(O)=C1 XFZJEEAOWLFHDH-UHFFFAOYSA-N 0.000 abstract 1
- CWEZAWNPTYBADX-UHFFFAOYSA-N Procyanidin Natural products OC1C(OC2C(O)C(Oc3c2c(O)cc(O)c3C4C(O)C(Oc5cc(O)cc(O)c45)c6ccc(O)c(O)c6)c7ccc(O)c(O)c7)c8c(O)cc(O)cc8OC1c9ccc(O)c(O)c9 CWEZAWNPTYBADX-UHFFFAOYSA-N 0.000 abstract 1
- MOJZMWJRUKIQGL-FWCKPOPSSA-N Procyanidin C2 Natural products O[C@@H]1[C@@H](c2cc(O)c(O)cc2)Oc2c([C@H]3[C@H](O)[C@@H](c4cc(O)c(O)cc4)Oc4c3c(O)cc(O)c4)c(O)cc(O)c2[C@@H]1c1c(O)cc(O)c2c1O[C@@H]([C@H](O)C2)c1cc(O)c(O)cc1 MOJZMWJRUKIQGL-FWCKPOPSSA-N 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- HGVVOUNEGQIPMS-UHFFFAOYSA-N procyanidin Chemical compound O1C2=CC(O)=CC(O)=C2C(O)C(O)C1(C=1C=C(O)C(O)=CC=1)OC1CC2=C(O)C=C(O)C=C2OC1C1=CC=C(O)C(O)=C1 HGVVOUNEGQIPMS-UHFFFAOYSA-N 0.000 abstract 1
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- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- HXQHFNIKBKZGRP-URPRIDOGSA-N (5Z,9Z,12Z)-octadecatrienoic acid Chemical compound CCCCC\C=C/C\C=C/CC\C=C/CCCC(O)=O HXQHFNIKBKZGRP-URPRIDOGSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 101100449517 Arabidopsis thaliana GRH1 gene Proteins 0.000 description 1
- 102100034279 Calcium-binding mitochondrial carrier protein Aralar2 Human genes 0.000 description 1
- 240000000560 Citrus x paradisi Species 0.000 description 1
- HXQHFNIKBKZGRP-UHFFFAOYSA-N Ranuncelin-saeure-methylester Natural products CCCCCC=CCC=CCCC=CCCCC(O)=O HXQHFNIKBKZGRP-UHFFFAOYSA-N 0.000 description 1
- 101100434479 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) AFB1 gene Proteins 0.000 description 1
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- OQIQSTLJSLGHID-WNWIJWBNSA-N aflatoxin B1 Chemical compound C=1([C@@H]2C=CO[C@@H]2OC=1C=C(C1=2)OC)C=2OC(=O)C2=C1CCC2=O OQIQSTLJSLGHID-WNWIJWBNSA-N 0.000 description 1
- 229930020125 aflatoxin-B1 Natural products 0.000 description 1
- 229930014669 anthocyanidin Natural products 0.000 description 1
- 150000001452 anthocyanidin derivatives Chemical class 0.000 description 1
- 235000008758 anthocyanidins Nutrition 0.000 description 1
- 108010084210 citrin Proteins 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- -1 linoleic acid, leukotrienes Chemical class 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000194 supercritical-fluid extraction Methods 0.000 description 1
- 235000021081 unsaturated fats Nutrition 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
Landscapes
- Edible Oils And Fats (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a production method of grape seed oil, which belongs to the technical field of the food processing. Grape seeds are cleaned and broken, the moisture content of the grape seeds is adjusted, and the refined grape seed oil is produced through the procedures such as pre-heat treatment, enzymolysis, microwave treatment, post heat treatment, drying, squeezing, alkali refining, hydration, heat-cold treatment, decoloration and filtering. With the production method, the oil yield reaches 95 percent or more, procyanidin extraction rate can reach 60 percent or more, the destroy degree of other ingredients such as oilmeal protein after the oil pressing is small, the quality of the produced grape seed oil is good, and the nutrient components of the grape seed oil is maximally reserved; and particularly, the refining processes such as alkali refining, hydration, heat-cold treatment, decoloration and the like effectively removes different water-solubility and fat-soluble harmful foreign matters in the crude oil, so the quality of the grape seed oil is improved, and the quality guarantee period is prolonged.
Description
Technical field
The present invention relates to a kind of production method of grape seed oil, belong to food processing technology field.
Background technology
Grape-kernel oil is a kind of high-grade nutrient vegetable oil, contains abundant unsaturated fat pinolenic acid, linoleic acid, leukotrienes, vitamin E, citrin, anthocyanidin etc., has very high nutritive value.Traditional squeezing process oil yield is low, and the grape-kernel oil of production is of poor quality.The supercritical extraction process equipment investment is big, and the energy consumption height is not suitable for essay kind oil enterprise.The organic solvent extract technology easily produces dissolvent residual, and security is low.
The present invention overcomes the deficiencies in the prior art, and a kind of production method of grape seed oil is provided.
Summary of the invention
The invention provides a kind of production method of grape seed oil.
Technical solution of the present invention is for making the refining grape-kernel oil with grape pip cleaning, fragmentation, adjustment moisture, preceding heat treatment, enzymolysis, microwave treatment, after-baking, drying, squeezing, alkali refining, aquation, hot cold treatment, decolouring, filtration;
Described being broken for is crushed to granularity 0.1～1mm with grape pip;
Described adjustment moisture is for adjusting water content to 20%～35%;
Heat treatment before described, after-baking are handled 30～60min for being heated to 85～100 ℃;
Described enzymolysis is for using cellulase, hemicellulase, protease, α-polygalacturonic enzyme, β-poly-five kinds of mixed enzyme enzymolysis of glucose enzyme; 40～55 ℃ of hydrolysis temperatures, time 1～3h;
Described cellulase, hemicellulase, protease, α-polygalacturonic enzyme, β-poly-glucose enzyme addition are respectively 1 ‰ of grape pip weight～10 ‰, 0.3 ‰～1.5 ‰, 0.2 ‰～0.8 ‰, 0.1 ‰～0.5 ‰, 0.1 ‰～0.5 ‰;
Described microwave treatment is that microwave power 200～500W handles each 20～40min 3 times;
Described drying is for being dried to water content below 6%;
Described squeezing is a cold pressing, temperature≤50 ℃; Squeezing makes the grape pip crude oil
Described alkali refining add alkali number be crude oil 0.08%～0.2%, 35～50 ℃ of alkali refining initial temperature, whole temperature 60～80 ℃, mixing speed 50～70r/min;
Described aquation amount of water is 10%～15%, and the beginning mixing speed is 15～55r/min, and the oil temperature is 60～65 ℃ when adding water, and whole temperature control is at 80～85 ℃, and quiescent setting made water-oil separating about 5～6 hours, the grape-kernel oil dehydration after the separation;
Described hot cold treatment is handled 1～3h for the grape pip crude oil being warming up to 50～80 ℃ earlier, cools to 0～8 ℃ again and handles 1～6h, separates and removes precipitation, and hot cold alternate treatment three times is cooled to-1～5 ℃ of freezing 1～3h subsequently, filters;
The decolorizer that described decolouring is used is carclazyte and active carbon, and carclazyte and active carbon part by weight are 1～5: 1, and the decolorizer consumption is 1%～5% of a crude oil amount, and operating pressure is 0.6～0.8MPa, and temperature is 50～80 ℃, and bleaching time is 30～70min; After decolouring is finished oily temperature is cooled to below 40 ℃ rapidly, filters; The condition of best decolouring for the decolorizer consumption be the crude oil amount 3%～5%, operating pressure is 0.8MPa, 70 ℃ of bleaching temperatures, bleaching time 30～50min.
The inventive method is produced the grape-kernel oil assay and is seen Table 1 (implication of % is " w/w ").
Table 1 grape-kernel oil assay
| Project | The result |
| The color and luster outward appearance | Clarify bright, free from admixture |
| Smell and flavour | Have the intrinsic fragrance of grape-kernel oil, flavour, free from extraneous odour |
| Relative density (20 ℃) | ??0.923～0.926 |
| Optical activity (25 ℃) | ??0.913～0.919 |
| Index of refraction (25 ℃) | ??1.470～1.477 |
| Moisture and volatile matter content/(%)≤ | ??0.05 |
| Insoluble impurities/(%)≤ | ??0.05 |
| Acid number/(mgKOH/g)≤ | ??0.8 |
| Peroxide value/(mmol/kg)≤ | ??5.0 |
| Iodine number/(gI 2/100g) | ??130～138 |
| Saponification number/(mgKOH/g) | ??188～194 |
| AFB1 (ug/kg)≤ | ??5 |
| Solvent residual amount (mg/kg) | Do not detect |
| Heat run (280 ℃) | Oil colours does not shoal, no precipitate |
Fragmentation and enzymolysis processing are destroyed grape pip eucaryotic cell structure and grease compounded body, for oil expression and effective component extracting have been created good condition.Not only can improve oil yield, obtain the high-quality grapefruit, also can make protein and the further processed utilization of other composition in the oil meal.
Microwave treatment not only helps improving oil yield by the different component in the grape pip being carried out selectivity heating, but also active ingredient such as OPC is together extracted.
The impurity such as soap stock in the grape-kernel oil have been removed in hot cold treatment, have solved effectively to deposit to be easy to generate problem muddy and precipitation in the process.
The inventive method technology is simple, equipment investment is little, energy consumption is low, do not introduce chemical substance, pollution-free, safe and efficient, be easy to industrialization, oil yield is up to more than 95%, the OPC extraction rate reached is more than 60%, other composition destructiveness such as the oil meal albumen after the oil expression are little, further processing and utilization.The grape-kernel oil quality that the inventive method is produced is good, has kept the nutritional labeling of grape-kernel oil to greatest extent; Especially refinery practices such as alkali refining, aquation, hot cold treatment, decolouring have been removed the various objectionable impurities such as water-soluble and fat-soluble in the crude oil effectively, have improved the quality of grape-kernel oil, have prolonged the shelf-life.
The specific embodiment
The following examples help those skilled in the art more fully to understand the present invention, but do not limit the present invention in any way.
Embodiment 1
Grape pip is cleared up, be crushed to granularity 0.1～0.3mm, adjust moisture to water content 25%, preceding heat treatment (be heated to 85～90 ℃ and handle 40min), add the cellulase of grape pip weight 3 ‰, 1 ‰ hemicellulase, 0.5 ‰ protease, 0.2 ‰ α polygalacturonic enzyme, β-poly-glucose enzyme enzymolysis of 0.3 ‰, 45～55 ℃ of hydrolysis temperatures, time 2h; (microwave power 300W handles 3 times to use the microwave equipment microwave treatment, each 20min), after-baking (be heated to 85～90 ℃ and handle 40min), be dried to water content below 6%, cold pressing (temperature≤50 ℃) makes grape pip crude oil, alkali refining, aquation, hot cold treatment, decolouring is filtered and is made the refining grape-kernel oil.
Described alkali refining add alkali number be crude oil 0.08%, 50 ℃ of alkali refining initial temperature, whole temperature 80 ℃, mixing speed 70r/min.
Described aquation amount of water is 15%, and the beginning mixing speed is 55r/min, and the oil temperature is 60 ℃ when adding water, and whole temperature control is at 80～85 ℃, and quiescent setting made water-oil separating about 5～6 hours, the grape-kernel oil dehydration after the separation.
Described hot cold treatment is handled 3h for the grape pip crude oil being warming up to 50 ℃ earlier, cools to 2 ℃ again and handles 6h, separates and removes precipitation, and hot cold alternate treatment three times is cooled to-4 ℃ of freezing 3h subsequently, filters.
The decolorizer that described decolouring is used is carclazyte and active carbon, and carclazyte and active carbon part by weight are 5: 1, and the decolorizer consumption is 3% of a crude oil amount, and operating pressure is 0.8MPa, and temperature is 70 ℃, and bleaching time is 50min; After decolouring is finished oily temperature is cooled to below 40 ℃ rapidly, filters.
The oil rate is up to more than 95%, and the OPC extraction rate reached is more than 60%.
Embodiment 2
Grape pip is cleared up, be crushed to granularity 0.1～0.5mm, adjust moisture to water content 20%, preceding heat treatment (be heated to 85～90 ℃ and handle 60min), add the cellulase of grape pip weight 1 ‰, 1.5 ‰ hemicellulase, 0.8 ‰ protease, α-polygalacturonic enzyme of 0.5 ‰, β-poly-glucose enzyme enzymolysis of 0.1 ‰, 40～45 ℃ of hydrolysis temperatures, time 3h; (microwave power 500W handles 3 times to use the microwave equipment microwave treatment, each 20min), after-baking (be heated to 85～90 ℃ and handle 60min), be dried to water content below 6%, cold pressing (temperature≤50 ℃) makes grape pip crude oil, alkali refining, aquation, hot cold treatment, decolouring is filtered and is made the refining grape-kernel oil.
Described alkali refining add alkali number be crude oil 0.2%, 35～40 ℃ of alkali refining initial temperature, whole temperature 75～80 ℃, mixing speed 60～70r/min.
Described aquation amount of water is 10%, and the beginning mixing speed is 55r/min, and the oil temperature is 60～65 ℃ when adding water, and whole temperature control is at 80～85 ℃, and quiescent setting made water-oil separating about 5～6 hours, the grape-kernel oil dehydration after the separation.
Described hot cold treatment is handled 3h for the grape pip crude oil being warming up to 50～55 ℃ earlier, cools to 0～4 ℃ again and handles 1h, separates and removes precipitation, and hot cold alternate treatment three times is cooled to-5 ℃ of freezing 1h subsequently, filters.
The decolorizer that described decolouring is used is carclazyte and active carbon, and carclazyte and active carbon part by weight are 5: 1, and the decolorizer consumption is 5% of a crude oil amount, and operating pressure is 0.6MPa, and temperature is 50 ℃, and bleaching time is 30min; After decolouring is finished oily temperature is cooled to below 40 ℃ rapidly, filters.
The oil rate is up to more than 95%, and the OPC extraction rate reached is more than 60%.
Embodiment 3
Grape pip is cleared up, be crushed to granularity 0.5～1mm, adjust moisture to water content 25%, preceding heat treatment (be heated to 95～100 ℃ and handle 30min), add the cellulase of grape pip weight 4 ‰, 1.2 ‰ hemicellulase, 0.5 ‰ protease, α-polygalacturonic enzyme of 0.3 ‰, β-poly-glucose enzyme enzymolysis of 0.4 ‰, 40～45 ℃ of hydrolysis temperatures, time 2h; (microwave power 200W handles 3 times to use the microwave equipment microwave treatment, each 20min), after-baking (be heated to 95～100 ℃ and handle 30min), be dried to water content below 6%, cold pressing (temperature≤50 ℃) makes grape pip crude oil, alkali refining, aquation, hot cold treatment, decolouring is filtered and is made the refining grape-kernel oil.
Described alkali refining add alkali number be crude oil 0.15%, 35～40 ℃ of alkali refining initial temperature, whole temperature 75～80 ℃, mixing speed 60～70r/min.
Described aquation amount of water is 15%, and the beginning mixing speed is 30r/min, and the oil temperature is 60～65 ℃ when adding water, and whole temperature control is at 80～85 ℃, and quiescent setting made water-oil separating about 5～6 hours, the grape-kernel oil dehydration after the separation.
Described hot cold treatment is handled 2h for the grape pip crude oil being warming up to 65～75 ℃ earlier, cools to 6 ℃ again and handles 4h, separates and removes precipitation, and hot cold alternate treatment three times is cooled to-4 ℃ of freezing 2h subsequently, filters.
The decolorizer that described decolouring is used is carclazyte and active carbon, and carclazyte and active carbon part by weight are 3: 1, and the decolorizer consumption is 3% of a crude oil amount, and operating pressure is 0.8MPa, and temperature is 60 ℃, and bleaching time is 50min; After decolouring is finished oily temperature is cooled to below 40 ℃ rapidly, filters;
The oil rate is up to more than 96%, and the OPC extraction rate reached is more than 62%.
Embodiment 4
Grape pip is cleared up, be crushed to granularity 0.8～1mm, adjust moisture to water content 30%, preceding heat treatment (be heated to 90～95 ℃ and handle 40min), add the cellulase of grape pip weight 10 ‰, 0.3 ‰ hemicellulase, 0.2 ‰ protease, α-polygalacturonic enzyme of 0.1 ‰, β-poly-glucose enzyme enzymolysis of 0.5 ‰, 50～55 ℃ of hydrolysis temperatures, time 1h; (microwave power 300W handles 3 times to use the microwave equipment microwave treatment, each 30min), after-baking (be heated to 90～95 ℃ and handle 40min), be dried to water content below 6%, cold pressing (temperature≤50 ℃) makes grape pip crude oil, alkali refining, aquation, hot cold treatment, decolouring is filtered and is made the refining grape-kernel oil.
Described alkali refining add alkali number be crude oil 0.1%, 45～50 ℃ of alkali refining initial temperature, whole temperature 60～70 ℃, mixing speed 50～60r/min.
Described aquation amount of water is 12%, and the beginning mixing speed is 45r/min, and the oil temperature is 60～65 ℃ when adding water, and whole temperature control is at 80～85 ℃, and quiescent setting made water-oil separating about 5～6 hours, the grape-kernel oil dehydration after the separation.
Described hot cold treatment is handled 2h for the grape pip crude oil being warming up to 60～65 ℃ earlier, cools to 4 ℃ again and handles 3h, separates and removes precipitation, and hot cold alternate treatment three times is cooled to-3 ℃ of freezing 2h subsequently, filters.
The decolorizer that described decolouring is used is carclazyte and active carbon, and carclazyte and active carbon part by weight are 2: 1, and the decolorizer consumption is 1% of a crude oil amount, and operating pressure is 0.8MPa, and temperature is 80 ℃, and bleaching time is 70min; After decolouring is finished oily temperature is cooled to below 40 ℃ rapidly, filters;
The oil rate is up to more than 95%, and the OPC extraction rate reached is more than 65%.
Embodiment 5
Grape pip is cleared up, be crushed to granularity 0.1～0.3mm, adjust moisture to water content 35%, preceding heat treatment (be heated to 90～95 ℃ and handle 50min), add the cellulase of grape pip weight 5 ‰, 1 ‰ hemicellulase, 0.6 ‰ protease, α-polygalacturonic enzyme of 0.3 ‰, β-poly-glucose enzyme enzymolysis of 0.2 ‰, 50～55 ℃ of hydrolysis temperatures, time 1h; (microwave power 400W handles 3 times to use the microwave equipment microwave treatment, each 20min), after-baking (be heated to 90～95 ℃ and handle 50min), be dried to water content below 6%, cold pressing (temperature≤50 ℃) makes grape pip crude oil, alkali refining, aquation, hot cold treatment, decolouring is filtered and is made the refining grape-kernel oil.
Described alkali refining add alkali number be crude oil 0.08%, 45～50 ℃ of alkali refining initial temperature, whole temperature 60～70 ℃, mixing speed 50～60r/min.
Described aquation amount of water is 15%, and the beginning mixing speed is 15r/min, and the oil temperature is 60～65 ℃ when adding water, and whole temperature control is at 80～85 ℃, and quiescent setting made water-oil separating about 5～6 hours, the grape-kernel oil dehydration after the separation.
Described hot cold treatment is handled 1h for the grape pip crude oil being warming up to 75～80 ℃ earlier, cools to 8 ℃ again and handles 6h, separates and removes precipitation, and hot cold alternate treatment three times is cooled to-1 ℃ of freezing 3h subsequently, filters.
The decolorizer that described decolouring is used is carclazyte and active carbon, and carclazyte and active carbon part by weight are 1: 1, and the decolorizer consumption is 4% of a crude oil amount, and operating pressure is 0.8MPa, and temperature is 80 ℃, and bleaching time is 70min; After decolouring is finished oily temperature is cooled to below 40 ℃ rapidly, filters.
The oil rate is up to more than 97%, and the OPC extraction rate reached is more than 63%.
Claims (10)
1. production method of grape seed oil, it is characterized in that, with grape pip cleaning, broken, adjust moisture, preceding heat treatment, enzymolysis, microwave treatment, after-baking, drying, squeezing, alkali refining, aquation, hot cold treatment, decolouring, filtration and make the refining grape-kernel oil.
2. production method of grape seed oil according to claim 1 is characterized in that, described being broken for is crushed to granularity 0.1～1mm with grape pip; Described adjustment moisture is for adjusting water content to 20%～35%.
3. production method of grape seed oil according to claim 1 and 2 is characterized in that, described preceding heat treatment, after-baking are handled 30～60min for being heated to 85～100 ℃.
4. production method of grape seed oil according to claim 1 and 2 is characterized in that, described enzymolysis is for using fiber rope enzyme, hemicellulase, protease, α-polygalacturonic enzyme, β-poly-five kinds of mixed enzyme enzymolysis of glucose enzyme.
5. production method of grape seed oil according to claim 4, it is characterized in that described cellulase, hemicellulase, protease, α-polygalacturonic enzyme, β-poly-glucose enzyme addition are respectively 1 ‰ of grape pip weight～10 ‰, 0.3 ‰～1.5 ‰, 0.2 ‰～0.8 ‰, 0.1 ‰～0.5 ‰, 0.1 ‰～0.5 ‰.
6. production method of grape seed oil according to claim 1 and 2 is characterized in that, described microwave treatment is that microwave power 200～500W handles each 20～40min 3 times.
7. production method of grape seed oil according to claim 1 and 2 is characterized in that, described alkali refining add alkali number be crude oil 0.08%～0.2%, 35～50 ℃ of alkali refining initial temperature, whole temperature 60～80 ℃, mixing speed 50～70r/min.
8. production method of grape seed oil according to claim 1 and 2, it is characterized in that, described aquation amount of water is 10%～15%, the beginning mixing speed is 15～55r/min, the oil temperature is 60～65 ℃ when adding water, and whole temperature control is at 80～85 ℃, and quiescent setting is about 5～6 hours, make water-oil separating, the grape-kernel oil dehydration after the separation.
9. production method of grape seed oil according to claim 1 and 2, it is characterized in that, described hot cold treatment is handled 1～3h for the grape pip crude oil being warming up to 50～80 ℃ earlier, cool to 0～8 ℃ again and handle 1～6h, separate and remove precipitation, the cold alternate treatment of heat three times is cooled to-1～-5 ℃ of freezing 1～3h subsequently, filters.
10. production method of grape seed oil according to claim 1 and 2, it is characterized in that, the decolorizer that described decolouring is used is carclazyte and active carbon, carclazyte and active carbon part by weight are 1～5: 1, the decolorizer consumption is 1%～5% of a crude oil amount, operating pressure is 0.6～0.8MPa, and temperature is 50～80 ℃, and bleaching time is 30～70min; After decolouring is finished oily temperature is cooled to below 40 ℃ rapidly, filters.
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