CN101779705B - Production method of grape seed oil - Google Patents

Production method of grape seed oil Download PDF

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Publication number
CN101779705B
CN101779705B CN201010112816.5A CN201010112816A CN101779705B CN 101779705 B CN101779705 B CN 101779705B CN 201010112816 A CN201010112816 A CN 201010112816A CN 101779705 B CN101779705 B CN 101779705B
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oil
grape
treatment
temperature
crude oil
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CN101779705A (en
Inventor
邹明
姚自奇
梁绍隆
温凯
冯霖
李东
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Hebei Dragon King hat Food Co., Ltd.
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BEIJING KEWEIHUA FOOD ENGINEERING AND TECHNOLOGY Co Ltd
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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

A kind of production method of grape seed oil
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 energy consumption is high, is not suitable for essay kind oil enterprise.The organic solvent extract technology is prone to produce dissolvent residual, and security is low.
The present invention overcomes the deficiency of prior art, and a kind of production method of grape seed oil is provided.
Summary of the invention
The present invention provides a kind of production method of grape seed oil.
Technical scheme of the present invention is for processing 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;
Said being broken for is crushed to granularity 0.1~1mm with grape pip;
Said adjustment moisture is adjustment water content to 20%~35%;
Heat treatment before said, after-baking are handled 30~60min for being heated to 85~100 ℃;
Said enzymolysis is for using cellulase, hemicellulase, protease, α-polygalacturonic enzyme, β-gather five kinds of mixed enzyme enzymolysis of glucose enzyme; 40~55 ℃ of hydrolysis temperatures, time 1~3h;
Said cellulase, hemicellulase, protease, α-polygalacturonic enzyme, β-gather glucose enzyme addition to be respectively 1 ‰ of grape pip weight~10 ‰, 0.3 ‰~1.5 ‰, 0.2 ‰~0.8 ‰, 0.1 ‰~0.5 ‰, 0.1 ‰~0.5 ‰;
Said microwave treatment is that microwave power 200~500W handles each 20~40min 3 times;
Said drying is for being dried to water content below 6%;
Said squeezing is a cold pressing, temperature≤50 ℃; Squeezing makes the grape pip crude oil
Said 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;
Said 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;
Said 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 deposition, and hot cold alternate treatment three times is cooled to-1~5 ℃ of freezing 1~3h subsequently, filters;
The decolorizer that said 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; Decolouring is cooled to below 40 ℃ oily temperature rapidly after accomplishing, and 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 through 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 deposition 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%, and 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
Following embodiment helps those skilled in the art more fully to understand the present invention, but does not limit the present invention in any way.
Embodiment 1
Grape pip is cleared up; Be crushed to granularity 0.1~0.3mm; Adjustment moisture to water content 25%, cellulase, 1 ‰ hemicellulase, 0.5 ‰ protease, 0.2 ‰ the α polygalacturonic enzyme of grape pip weight 3 ‰, 0.3 ‰ β-gather glucose enzyme enzymolysis is added in preceding heat treatment (be heated to 85~90 ℃ handle 40min); 45~55 ℃ of hydrolysis temperatures, time 2h; Use microwave equipment microwave treatment (microwave power 300W handles 3 times, 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 processed the refining grape-kernel oil.
Said alkali refining add alkali number be crude oil 0.08%, 50 ℃ of alkali refining initial temperature, whole temperature 80 ℃, mixing speed 70r/min.
Said 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.
Said 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 deposition, and hot cold alternate treatment three times is cooled to-4 ℃ of freezing 3h subsequently, filters.
The decolorizer that said 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; Decolouring is cooled to below 40 ℃ oily temperature rapidly after accomplishing, and 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; Adjustment moisture to water content 20%, cellulase, 1.5 ‰ hemicellulase, 0.8 ‰ protease, 0.5 ‰ the α-polygalacturonic enzyme of grape pip weight 1 ‰, 0.1 ‰ β-gather glucose enzyme enzymolysis is added in preceding heat treatment (be heated to 85~90 ℃ handle 60min); 40~45 ℃ of hydrolysis temperatures, time 3h; Use microwave equipment microwave treatment (microwave power 500W handles 3 times, 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 processed the refining grape-kernel oil.
Said 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.
Said 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.
Said 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 deposition, and hot cold alternate treatment three times is cooled to-5 ℃ of freezing 1h subsequently, filters.
The decolorizer that said 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; Decolouring is cooled to below 40 ℃ oily temperature rapidly after accomplishing, and 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; Adjustment moisture to water content 25%, cellulase, 1.2 ‰ hemicellulase, 0.5 ‰ protease, 0.3 ‰ the α-polygalacturonic enzyme of grape pip weight 4 ‰, 0.4 ‰ β-gather glucose enzyme enzymolysis is added in preceding heat treatment (be heated to 95~100 ℃ handle 30min); 40~45 ℃ of hydrolysis temperatures, time 2h; Use microwave equipment microwave treatment (microwave power 200W handles 3 times, 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 processed the refining grape-kernel oil.
Said 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.
Said 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.
Said 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 deposition, and hot cold alternate treatment three times is cooled to-4 ℃ of freezing 2h subsequently, filters.
The decolorizer that said 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; Decolouring is cooled to below 40 ℃ oily temperature rapidly after accomplishing, and 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; Adjustment moisture to water content 30%, cellulase, 0.3 ‰ hemicellulase, 0.2 ‰ protease, 0.1 ‰ the α-polygalacturonic enzyme of grape pip weight 10 ‰, 0.5 ‰ β-gather glucose enzyme enzymolysis is added in preceding heat treatment (be heated to 90~95 ℃ handle 40min); 50~55 ℃ of hydrolysis temperatures, time 1h; Use microwave equipment microwave treatment (microwave power 300W handles 3 times, 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 processed the refining grape-kernel oil.
Said 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.
Said 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.
Said 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 deposition, and hot cold alternate treatment three times is cooled to-3 ℃ of freezing 2h subsequently, filters.
The decolorizer that said 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; Decolouring is cooled to below 40 ℃ oily temperature rapidly after accomplishing, and 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; Adjustment moisture to water content 35%, cellulase, 1 ‰ hemicellulase, 0.6 ‰ protease, 0.3 ‰ the α-polygalacturonic enzyme of grape pip weight 5 ‰, 0.2 ‰ β-gather glucose enzyme enzymolysis is added in preceding heat treatment (be heated to 90~95 ℃ handle 50min); 50~55 ℃ of hydrolysis temperatures, time 1h; Use microwave equipment microwave treatment (microwave power 400W handles 3 times, 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 processed the refining grape-kernel oil.
Said 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.
Said 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.
Said 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 deposition, and hot cold alternate treatment three times is cooled to-1 ℃ of freezing 3h subsequently, filters.
The decolorizer that said 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; Decolouring is cooled to below 40 ℃ oily temperature rapidly after accomplishing, and filters.
The oil rate is up to more than 97%, and the OPC extraction rate reached is more than 63%.

Claims (2)

1. production method of grape seed oil; It is characterized in that, the refining grape-kernel oil is processed in grape pip cleaning, broken, adjustment moisture, preceding heat treatment, enzymolysis, microwave treatment, after-baking, drying, squeezing, alkali refining, aquation, hot cold treatment, decolouring, filtration;
Said being broken for is crushed to granularity 0.1~1mm with grape pip;
Said adjustment moisture is adjustment water content to 20%~35%;
Heat treatment before said, after-baking are handled 30~60min for being heated to 85~100 ℃;
Said enzymolysis is for using cellulase, hemicellulase, protease, α-polygalacturonic enzyme, β-gather five kinds of mixed enzyme enzymolysis of glucose enzyme; 40~55 ℃ of hydrolysis temperatures, time 1~3h;
Said cellulase, hemicellulase, protease, α-polygalacturonic enzyme, β-gather glucose enzyme addition to be respectively 1 ‰ of grape pip weight~10 ‰, 0.3 ‰~1.5 ‰, 0.2 ‰~0.8 ‰, 0.1 ‰~0.5 ‰, 0.1 ‰~0.5 ‰;
Said microwave treatment is that microwave power 200~500W handles each 20~40min 3 times;
Said drying is for being dried to water content below 6%;
Said squeezing is a cold pressing, temperature≤50 ℃; Squeezing makes the grape pip crude oil
Said 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;
Said 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 5~6 hours makes water-oil separating, the grape-kernel oil dehydration after the separation;
Said 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 deposition, and hot cold alternate treatment three times is cooled to-1~-5 ℃ of freezing 1~3h subsequently, filters;
The decolorizer that said 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; Decolouring is cooled to below 40 ℃ oily temperature rapidly after accomplishing, and filters.
2. method according to claim 1 is characterized in that, 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.
CN201010112816.5A 2010-02-22 2010-02-22 Production method of grape seed oil Expired - Fee Related CN101779705B (en)

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