CN103451016A - Production method of refined colza oil, refined colza oil produced by using the method, and acid emulsion food containing the above mentioned colza oil - Google Patents
Production method of refined colza oil, refined colza oil produced by using the method, and acid emulsion food containing the above mentioned colza oil Download PDFInfo
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- CN103451016A CN103451016A CN2013101993322A CN201310199332A CN103451016A CN 103451016 A CN103451016 A CN 103451016A CN 2013101993322 A CN2013101993322 A CN 2013101993322A CN 201310199332 A CN201310199332 A CN 201310199332A CN 103451016 A CN103451016 A CN 103451016A
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Abstract
The invention provides a production method of refined colza oil, a refined colza oil produced by using the method, and an acid emulsion food containing the above mentioned colza oil, and a method of reducing the aldehydes in the refined colza oil. The refined colza oil can be used to inhibit the reduction of the alfa- tocopherol, and can be used to reduce the trans-fatty acids, and the flavor is good. The production method provided by the invention comprises a deodorization process, and the deodorization process is characterized in that the deodorization process comprises a contact process, namely the colza oil is contacted with the vapor for 53-100min under the temperature condition in a range from 205 to 225 DEG C and the vacuum degree in a range from 300 to 800 Pa. The content of the vapor can be 1.0-5.0 wt% by comparing with the colza oil. The above mentioned deodorization process can be carried out by using the tray-type deodorization device.
Description
Technical field
The present invention relates to the manufacture method of refining rapeseed oil, by the prepared rapeseed oil of this manufacture method, the acid emulsified foodstuff that contains this refining rapeseed oil and method that the aldehydes in rapeseed oil is reduced.
Background technology
In recent years, along with the raising of consumer health's consciousness, make people more pay attention to the trophic function food that sign has specific nutrition composition function.
While selling food as trophic function food, must meet the specification standards of trophic function food.As one of these specification standards for example, when nutritive ingredient is alpha-tocopherol (vitamin-E), the lower value of the contained nutritive ingredient amount of suitable intake every day is 2.4mg.According to inferring of national nutrition survey (nineteen ninety-five), the every per day picked-up grease 14g of Japanese.Therefore, if the suitable intake using this intake as grease, in order to sell grease as trophic function food, in the situation that nutritive ingredient is alpha-tocopherol, must contain the above alpha-tocopherol of 172ppm in grease.
, known in the refining step of grease, the alpha-tocopherol content in vegetable seed wet goods grease may be subject to the impact of deodorization procedures condition and reduce.Deodorization procedures refers to, heating grease carry out wet distillation under reduced pressure, come except in degrease on edible preferred stink composition or the operation of flavor composition is arranged.Particularly, if the deodorization temperature in deodorization procedures is higher, can cause α-tocopherol to reduce with together with volatile component in grease, so the content of the alpha-tocopherol of the grease of gained is lower.
Therefore, the grease that can sell as trophic function food just is only limited to Trisun Oil R 80, the safflower wet goods that alpha-tocopherol content is high originally.But the price of Trisun Oil R 80 Flos Carthami oil is very high, so the human consumer likely can seek more cheap product.On the other hand, as the rapeseed oil (can be called Canola oil again) of more cheap grease, if carry out general refining step, alpha-tocopherol containing quantity not sufficient 172ppm, therefore, in order to sell as trophic function food, must add alpha-tocopherol.
On the other hand, known trans fatty acid can improve cardiopathic risk, owing in the refining step of grease, under hot conditions, can generating trans fatty acid, therefore by the heating condition by deodorization procedures, be set as low temperature, can access the grease that content of trans fatty acids is low.According to the guilding principle of consumer protection mechanism, during the not enough 0.3g of the content of trans fatty acids in every 100g food, can be designated not containing trans fatty acid, therefore expectation provides the grease that a kind of content of trans fatty acids is lower.
But, if in order to make the alpha-tocopherol of residual high density in grease, and/or in order to reduce the content of trans fatty acid in grease, and carry out deodorization procedures under cold condition, can't realize that the original purpose of deodorization procedures can't remove flavour substances, and also may damage grease obtained local flavor.
For example, patent documentation 1 discloses following methods: by under the cold condition at 100～240 ℃, the glyceride composition that contains Racemic glycidol etc. being carried out to deodorization processing etc., reduce Racemic glycidol in glyceride composition etc.But not about do not destroy grease obtained local flavor in deodorization procedures, the reduction of alpha-tocopherol content in oil-control, reduce the research of content of trans fatty acids up to now simultaneously.
[patent documentation]
Patent documentation 1: TOHKEMY 2011-074358 communique
Summary of the invention
The present invention In view of the foregoing completes, and purpose is to provide a kind of manufacture method that can suppress the reduction of alpha-tocopherol content and can reduce the sapid refining rapeseed oil of content of trans fatty acids.It is a kind of by the prepared refining rapeseed oil of this manufacture method that another object of the present invention is to provide, and the acid emulsified foodstuff that contains this refining rapeseed oil.
The discoveries such as the inventor, by the contact operation that makes under given conditions rapeseed oil contact with water vapour is set in deodorization procedures, can access a kind of refining rapeseed oil that has suppressed the reduction of alpha-tocopherol content and reduced content of trans fatty acids, complete thus the present invention.Particularly, the invention provides following content.
(1) a kind of manufacture method of refining rapeseed oil, comprise the deodorization procedures of rapeseed oil being carried out to deodorization, it is characterized in that: above-mentioned deodorization procedures comprises the contact operation, above-mentioned contact operation is under the temperature condition of 205～225 ℃, under the vacuum tightness of 300～800Pa, make rapeseed oil contact the operation of 53～100 minutes with water vapour.
(2) as the manufacture method of (1) described refining rapeseed oil, it is characterized in that: the amount of above-mentioned water vapour is 1.0～5.0 quality % with respect to rapeseed oil.
(3) as the manufacture method of (1) or (2) described refining rapeseed oil, it is characterized in that: above-mentioned deodorization procedures adopts the pellet type deodorization device to carry out.
(4) a kind of refining rapeseed oil that the described manufacture method of any one makes in (1) to (3), it is characterized in that: the content of alpha-tocopherol is more than 172ppm.
(5) a kind of containing (4) described refining rapeseed oil acid emulsified foodstuff.
(6) a kind of method that aldehydes in rapeseed oil is reduced, is characterized in that: under the 205 ℃～temperature condition of 225 ℃, the vacuum tightness of 300Pa～800Pa, make rapeseed oil contact 53 minutes～100 minutes with water vapour.
According to the present invention, a kind of reduction that suppresses alpha-tocopherol content can be provided, and reduce manufacture method content of trans fatty acids, sapid refining rapeseed oil.In addition, according to the present invention, can provide a kind of by the prepared refining rapeseed oil of this manufacture method, the acid emulsified foodstuff that contains this refining rapeseed oil and method that aldehydes in rapeseed oil is reduced.
Embodiment
Below, embodiments of the present invention are specifically described.
[deodorization procedures]
Known rapeseed oil contains appropriate alpha-tocopherol.Therefore, if suitably make with extra care rapeseed oil, meet and sell the standard (in oil and fat product, alpha-tocopherol content is more than 172ppm) of necessary alpha-tocopherol content as trophic function food, thereby can not add alpha-tocopherol and directly as the trophic function food selling.Therefore, inventor etc. is studied the process for purification that does not reduce the alpha-tocopherol content in rapeseed oil.
Known, in rapeseed oil refining, if carry out deodorization procedures under hot conditions, the content of the alpha-tocopherol in rapeseed oil can reduce.Therefore can say, in rapeseed oil refining, preferably under cold condition, carry out deodorization procedures.On the other hand, if carry out deodorization procedures under hot conditions, can cause the content of trans fatty acid in rapeseed oil to increase.Because the excess ingestion of known trans fatty acid can be improved cardiopathic risk, therefore preferably can reduce the content of trans fatty acids in rapeseed oil.Especially, according to the guilding principle of consumer protection mechanism, during the not enough 0.3g of the content of trans fatty acids in every 100g food, can be designated not containing trans fatty acid, therefore expect that the content of the trans fatty acid in rapeseed oil is lower than this numerical value.
Therefore, the inventor etc. have been goed deep into research, found that, if be arranged under the condition that meets temperature condition described later, reduced pressure and duration of contact the contact operation that rapeseed oil is contacted with water vapour in deodorization procedures, can obtain a kind of reduction that suppresses alpha-tocopherol content, and reduce the sapid refining rapeseed oil of the content of trans fatty acid.Below to contact, each condition in operation describes.
(temperature condition in the contact operation)
In contact operation of the present invention, at 205～225 ℃, be preferably 205～220 ℃, most preferably be under the temperature condition of 210～220 ℃ rapeseed oil is contacted with water vapour.Temperature condition is more than 205 ℃ below 225 ℃, can fully carry out deodorization, can reduce the content of the trans fatty acid in the refining rapeseed oil with excellent flavor.
(reduced pressure in the contact operation)
The reduced pressure of the contact operation in the present invention is the vacuum tightness of 300～800Pa, is preferably the vacuum tightness of 300～533Pa, more preferably the vacuum tightness of 300～470Pa.Vacuum tightness, more than 300Pa, can suppress the reduction of the alpha-tocopherol content in the refining rapeseed oil of gained.Vacuum tightness, below the above 800Pa of 300Pa, can fully be carried out deodorization, can obtain having the refining rapeseed oil of excellent flavor.
Should illustrate, " vacuum tightness " in the present invention indicates with the absolute pressure standard.This value representation, take perfect vacuum as zero, with the degree of closeness of desirable vacuum state (perfect vacuum).
(duration of contact in the contact operation)
In contact operation of the present invention, make rapeseed oil contact 53～100 minutes with water vapour, preferably contact 53～90 minutes, more preferably contact 53～85 minutes.More than 53 minutes, can access the refining rapeseed oil with excellent flavor duration of contact.Below 100 minutes, can suppress the reduction of the alpha-tocopherol content in refining rapeseed oil duration of contact.
Can be successional duration of contact, can be also discontinuity.From energy efficiency, good aspect is considered, preferably be successional duration of contact.If amount to above-mentioned duration of contact, can, when making with extra care the rapeseed oil excellent flavor, suppress the reduction of alpha-tocopherol in refining rapeseed oil.
(steam vapour amount in the contact operation)
In the contact operation, with the amount of the contacted water vapour of rapeseed oil, with respect to rapeseed oil, be 1.0～5.0 quality %, be preferably 1.5～5.0 quality %, more preferably 2.0～5.0 quality %.If the amount of water vapour is more than 1.0 quality % with respect to rapeseed oil, can fully carry out deodorization, obtain having the refining rapeseed oil of excellent flavor.If the amount of water vapour is below 5.0 quality % with respect to rapeseed oil, can suppress the reduction of the alpha-tocopherol content in refining rapeseed oil.
(condition of the deodorization procedures except the contact operation)
In deodorization procedures of the present invention, carry out the condition of above-mentioned contact operation deodorization procedures in addition, it can be the condition of using in general deodorization procedures, be not particularly limited, but the scope (that is, the vacuum tightness of 300～800Pa) that preferably is no more than the upper limit (225 ℃) of said temperature condition and is no more than above-mentioned reduced pressure.
Before and after above-mentioned contact operation, when temperature is raised to 205 ℃, or from 205 ℃ of whens cooling, deteriorated in order not make under the temperature condition of rapeseed oil below the lower limit (, 205 ℃) of said temperature generation, (for example, the vacuum tightness of 300～800Pa) is preferably reduced pressure.In addition, before and after above-mentioned contact operation, when temperature is raised to 205 ℃, or during from 205 ℃ of coolings, rapeseed oil can contact with water vapour, also can not contact.When rapeseed oil contacts with water vapour, can with water vapour, contact below 20～100 minutes, above-mentioned water vapour is 1.0～5.0 quality % with respect to rapeseed oil.
(deodorization device)
Become known for realizing that the deodorization device of deodorization procedures has the types such as batch-type, semi continuous, continous way.In addition, by structure, divide, known have various deodorization devices such as girdler (ガ mono-De ラ mono-) formula, cambro (キ ヤ Application プ mouth) formula, cambro-miura (キ ヤ Application プ mouth-ミ ウ ラ) formula.In the present invention, can use the deodorization device of any type.
Girdler formula deodorization device has the structure that is provided with pallet in the vacuum column of the vertical and cylindrical that is called as housing.There are a plurality of pallets in deodorization device, usually can be blown into water vapour to each pallet.The rapeseed oil be imported in deodorization device is heated under reduced pressure, with water vapour contact one side and carry out deodorization on one side.Cooling on the pallet of rapeseed oil after deodorization after the contact operation, as refining rapeseed oil, be recovered.
Have the external member be comprised of 2 thin plates in cambro formula or cambro-miura formula deodorization device, above-mentioned 2 thin plates are parallel to be erect relatively.In addition, be provided with in this thin plate lower end the pipe that is blown into water vapour.The lower end of thin plate is immersed in rapeseed oil, is heated under reduced pressure and be blown into water vapour, rapeseed oil and water vapor diffusion form film to thin sheet surface, and rapeseed oil is by deodorization in the meantime.In cambro formula or cambro-miura formula deodorization device, usually also can be blown into water vapour to all pallets.
In the present invention, below, the girdler formula in various deodorization devices, cambro formula, cambro-miura formula deodorization device are called to " pellet type deodorization device "." pellet type deodorization device " in the present invention do not comprise the pillar deodorization device with the thin film column that possesses regular packing material.The aspect of sapid grease of being easy to get calmly considers, the present invention preferably uses the pellet type deodorization device.
In can be used for pellet type deodorization device of the present invention, as girdler formula deodorization device, be not particularly limited, can enumerate the monoshell type device that vacuum column is separated by pallet, further be built-in with the bivalve type device that a plurality of housings and the plurality of housing play respectively the pallet effect in vacuum column, and combined combination shell mould device of monoshell type and bivalve type etc.
In can be used for pellet type deodorization device of the present invention, as cambro formula or cambro-miura formula deodorization device, be not particularly limited, can enumerate pallet horizontal-discharge type device, pallet tandem type device etc.
(rapeseed oil)
Rapeseed oil as for deodorization procedures of the present invention, be not particularly limited, and can use treated oil also can use non-treated oil.Treated oil can obtain with known process for purification.As known process for purification, can enumerate with inferior method: by seed is squeezed or/and the mode of solvent extraction is extracted oil (is squeezed and during solvent extraction, the grease that can mix each oil press process gained), the grease obtained is carried out to Degumming Procedures, deoxidation step, bleaching process, deodorization procedures etc., thereby obtain treated oil.
The object of the invention is to obtain a kind of reduction that suppresses alpha-tocopherol content, and reduced the refining rapeseed oil of content of trans fatty acids.Therefore, preferably use and there is no to pass through the alpha-tocopherol content that may reduce in grease, the grease that increases the deodorization procedures of content of trans fatty acids.More preferably use and do not pass through deodorization procedures, but passed through the rapeseed oil (decolouring rapeseed oil) of bleaching process.Further preferably use after oil expression the decolouring rapeseed oil through Degumming Procedures, deoxidation step, bleaching process.
[by the prepared refining rapeseed oil of manufacture method of the present invention]
Manufacturing method according to the invention, the reduction of alpha-tocopherol content that can be inhibited, and reduced content of trans fatty acids, sapid refining rapeseed oil.
" standard grease analytical test method 2.4.10-2003 tocopherol (fluorimetric detector-high speed liquid chromatography) " that the content of the alpha-tocopherol in refining rapeseed oil is learned association's volume in accordance with Japanese oiling determined.
Manufacturing method according to the invention, the content that can access alpha-tocopherol meets sells the refining rapeseed oil of the standard (in oil and fat product, alpha-tocopherol content is more than 172ppm) of necessary alpha-tocopherol content as trophic function food.
The content of the trans fatty acid in refining rapeseed oil is determined in accordance with AOCS (American Oil Chemists ' Society) standard method " Ce1f-96 ".
Manufacturing method according to the invention, the standard that the content that can access a kind of trans fatty acid meets consumer protection mechanism guilding principle can be designated not the refining rapeseed oil containing trans fatty acid (trans fatty acid in every 100g food containing quantity not sufficient 0.3g).
Manufacturing method according to the invention, can reduce the irritating smell of refining rapeseed oil and the amount of stink composition, therefore can access sapid refining rapeseed oil." irritating smell " refers to the stink from materials such as low grade aldehyde contained in grease (acetaldehyde, propionic aldehyde, propenal etc.) and low-grade carboxylic acid'ss (formic acid etc.).By at for example fried grease of being made with extra care more than 180 ℃, can make irritating smell become obvious.In addition, " stink composition " refers to volatile component contained in grease.In the middle of this volatile component, especially aldehydes (propenal, hexanal, cis-3-hexanal, trans-2-hexanal, octanal, trans-2-heptenic aldehyde, aldehyde C-9, trans-2-octenal, anti-, cis-2,4-heptadienal, anti-, trans-2，4-heptadienal, anti-, cis-2,4-decadienal, anti-, trans-2,4-decadienal, 2-decenal, 2-undecylene aldehyde etc.) can produce irritating smell after oxidized.Manufacturing method according to the invention, the refining rapeseed oil that the amount of irritating smell and stink composition (especially aldehydes) of accessing has been reduced.Specify the irritating smell of refining rapeseed oil by the sensory evaluation based on the respondent.In addition, specify the source material of the irritating smell in refining rapeseed oil and the amount of stink composition by static headspace-GC-MS analyser etc.
The common deodorization procedures of carrying out under hot conditions is used as the operation that reduces the stink composition in grease.But, according to the present invention, by carrying out deodorization procedures under the temperature condition lower than prior art, unexpectedly also can reduce the amount of the stink composition in grease.This is illustrated in common deodorization procedures, at high temperature can generate by product etc., and this by product etc. has produced the possibility of new stink.On the other hand, can infer, can suppress the generation of this by product according to the present invention.
Therefore in addition, by the prepared refining rapeseed oil excellent flavor of manufacture method of the present invention, be suitable for use as the material of acid emulsified foodstuff etc.When using by the prepared refining rapeseed oil of manufacture method of the present invention as the material of acid emulsified foodstuff etc., in the preferred acidic emulsified foodstuff, more than 30 quality % of grease, be by the prepared refining rapeseed oil of manufacture method of the present invention, in acid emulsified foodstuff, more than 50 quality % of grease, being more preferably by the prepared refining rapeseed oil of manufacture method of the present invention, is most preferably by the prepared refining rapeseed oil of manufacture method of the present invention more than 70 quality % of grease in acid emulsified foodstuff.As acid emulsified foodstuff, be not particularly limited, can exemplify mayonnaise, the aqueous sauce of emulsification, separate aqueous sauce etc.Wherein, from the ratio of fat content high and and the local flavor of the other materials such as vinegar between the aspects such as balanced degree the best consider, preferred mayonnaise.And, by the prepared refining rapeseed oil of manufacture method of the present invention, the amount of issuable stink composition is reduced due to when heating, therefore frying oils can be suitable for use as, cooking is heated edible oil with wet goods.
[embodiment]
[embodiment 1～5, comparative example 1～4]
Use deodorization device, by the condition of table 1 record, decolouring rapeseed oil (Nisshin Oillio Group Ltd's system) is carried out to the deodorization processing, obtain the refining rapeseed oil of each embodiment and comparative example.
The deodorization device used is following any device.The deodorization device that girdler formula deodorization device 1 is continous way, and there is following structure: pallet all links together by the pipe arrangement be arranged between each pallet, in device, supplies with continuously grease.The deodorization device that girdler formula deodorization device 2 is semi continuous, and there is following structure: be provided with valve on each pallet, the grease between pallet is difficult to mixed in together.
Device 1:girdler formula deodorization device 1
Device 2:girdler formula deodorization device 2
Device 3: batch-type deodorization device
Should illustrate, in following table, " times more than 205 ℃ " refer to that the rapeseed oil by deodorization device is exposed to the total time under the temperature condition more than 205 ℃ in deodorization device.
In following table, " the water vapour amount of being blown into " is illustrated under the temperature condition more than 205 ℃, be blown into each pallet in deodorization device, with respect to the total amount of the water vapour of rapeseed oil.
[evaluation]
According to following index, the refining rapeseed oil of each embodiment and comparative example is estimated.
(content of alpha-tocopherol)
Learn according to Japanese oiling " the standard grease analytical test method 2.4.10-2003 tocopherol (fluorimetric detector-high speed liquid chromatography) " that association compiles, measure the content of the alpha-tocopherol in the refining rapeseed oil of each embodiment and comparative example.Result is as shown in table 1.
(content of trans fatty acid)
According to AOCS (American Oil Chemists ' Society) standard method " Ce1f-96 ", measure in the refining rapeseed oil of each embodiment and comparative example the content (" % " in table means quality %) with respect to the trans fatty acid of total fatty acids composition.Result is as shown in table 1.
(flavor evaluation)
Use the refining rapeseed oil of each embodiment and comparative example to make mayonnaise, the gained mayonnaise is carried out to sensory evaluation, estimate the local flavor of the refining rapeseed oil of each embodiment and comparative example.
Adopt following method to make mayonnaise.
Add 3 eggs in food processing apparatus, the 45g rice vinegar, 5g salt, the 2g mustard, 2g granulated sugar, a little pepper, stirred for 10 seconds.Next, continue to stir on one side, marginally add the refining rapeseed oil of each embodiment of common 360g or comparative example on one side in batches.After adding refining rapeseed oil, further stir about is 3 minutes, obtains mayonnaise.Mayonnaise, directly containing in entrance, is estimated to local flavor.Result is as shown in table 1.
Should illustrate, the flavor evaluation standard is as follows.
The flavor balance of zero vinegar and grease is good, does not have pleasant impression
The taste of * vinegar is strong, and pleasant impression is arranged
[table 1]
As shown in table 1, contained the alpha-tocopherol more than the 172ppm that can be used as trophic function food sign by the prepared refining rapeseed oil of manufacture method of the present invention, and the content of trans fatty acid is low.And, contain the mayonnaise excellent flavor by the prepared refining rapeseed oil of manufacture method of the present invention.
[embodiment 6 and embodiment 7, comparative example 5 and comparative example 6]
Use deodorization device, by following condition, decolouring rapeseed oil (Nisshin Oillio Group Ltd's system) is carried out to the deodorization processing, obtain the refining rapeseed oil of each embodiment and comparative example.In addition, " installing 1 " of below mentioning and " installing 2 " refer to identical with " the installing 1 " and " installing 2 " of using in embodiment 1～5, comparative example 1～4 respectively device.
Embodiment 6 and embodiment 7: in embodiment 6, use " installing 1 ", in embodiment 7, use " installing 2 ", under 220 ℃, vacuum tightness 400Pa (3torr), 60 minutes, the condition of the water vapour amount of being blown into 3.4 quality %, the rapeseed oil that makes to decolour contacts with water vapour.This operation is equivalent to " the contact operation " in the present invention.
Comparative example 5 and comparative example 6: in comparative example 5, use " installing 1 ", in comparative example 6, use " installing 2 ", under 245 ℃, vacuum tightness 400Pa (3torr), 60 minutes, the condition of the water vapour amount of being blown into 3.4 quality %, the rapeseed oil that makes to decolour contacts with water vapour.
The evaluation of local flavor
According to 2 hobby methods, allow 20 respondents select " the gratifying refining rapeseed oil of smell " and " the refining rapeseed oil that irritating smell is few " in the refining rapeseed oil of embodiment 6 and comparative example 5.For the refining rapeseed oil of embodiment 6 and comparative example 5, will be evaluated as respondent's the number of " smell is satisfactory " and the number that is evaluated as the respondent of " irritating smell is few " and be shown in table 2.
The refining rapeseed oil of embodiment 7 and comparative example 5 is also carried out to the evaluation identical with the evaluation of refining rapeseed oil to embodiment 6 and comparative example 5.The results are shown in table 2.
Table 2
As shown in table 2, by the prepared refining rapeseed oil of manufacture method of the present invention, reduced stink and irritating smell, excellent flavor.
[embodiment 8, comparative example 7 and comparative example 8]
Use deodorization device, by the condition of table 3 record, decolouring rapeseed oil (Nisshin Oillio Group Ltd's system) is carried out to the deodorization processing, obtain the refining rapeseed oil of each embodiment and comparative example.Secondly, pour each refining rapeseed oil 800g into frying pan, by being warming up to 180 ℃, each refining rapeseed oil is carried out to fried processing.In the moment that arrives 180 ℃, to refining rapeseed oil, each gathers a part, carries out following evaluation.
[evaluation]
(content of alpha-tocopherol and the content of trans fatty acid)
With the method in embodiment 1～5, comparative example 1～4, similarly the content of the alpha-tocopherol in each the refining rapeseed oil gathered and the content of trans fatty acid are measured.The results are shown in table 3.
(quantitative analysis of the stink composition in each refining rapeseed oil)
Each refining rapeseed oil 2g is packed in the sample vial of 20ml, under the heating of 180 ℃, after rocking 10 minutes, by GC-MS, the volatile component of head space is analyzed.Analysis condition is as following<GC-MS analysis condition > as shown in.Amount as the stink composition, calculate aldehydes (propenal, hexanal, cis-3-hexanal, trans-2-hexanal, octanal, trans-2-heptenic aldehyde, aldehyde C-9, trans-2-octenal, anti-in each refining rapeseed oil, cis-2,4-heptadienal, anti-, trans-2,4-heptadienal, anti-, cis-2,4-decadienal, anti-, trans-2,4-decadienal, 2-decenal, 2-undecylene aldehyde) and the area integral value of the total ions chromatogram (TIC) of all odour components (all volatile components), and calculate and take the area integral value of embodiment 8 relative value during as " 1 ".The results are shown in table 3.
<GC-MS analysis condition >
GC-MS device: GC-MSD system (Anjelen Sci. & Tech. Inc's system)
Post: DB-WAX (60m * φ 0.25mm * 0.5 μ tm)
Current-carrying gas: helium
Column temperature: 35 ℃ of (keeping 5 minutes) → 5 ℃/minute → 240 ℃ (keeping 10 minutes)
MS detector: scanning analysis (29-500m/z)
Ion source: 230 ℃
Quadrupole: 150 ℃
Emitting voltage: 70eV
(analysis based on smell sensor)
Use odor identification sensing system FOX4000 (A Mosi (Japan) Co., Ltd.), each refining rapeseed oil is carried out to the smell analysis.Each refining rapeseed oil, 150 ℃ of heating 5 minutes, is sampled head space, and is analyzed by 18 sensors of FOX4000.About this analytical results, for each refining rapeseed oil, the numerical value obtained is sued for peace, and the value of the value of embodiment 8 and comparative example 7 and comparative example 8 is compared.The result that obtains is shown in to table 3 as take the result of embodiment 8 relative value (the stink composition in the refining rapeseed oil of the higher expression of numerical value is more) during as " 1 ".
Table 3
As shown in table 3, by the prepared refining rapeseed oil of manufacture method of the present invention, even also contain the above alpha-tocopherol of 172ppm that can be labeled as Food Nutrition Labeling through fried processing, and the content of trans fatty acid is low.And, by the prepared refining rapeseed oil of manufacture method of the present invention, even through fried processing, also can reduce the amount of stink composition and as the amount of the aldehydes in the source of irritating smell, thus excellent flavor.
Claims (6)
1. the manufacture method of a refining rapeseed oil, comprise the deodorization procedures of rapeseed oil being carried out to deodorization, it is characterized in that: described deodorization procedures comprises the contact operation, described contact operation is under the temperature condition of 205～225 ℃, under the vacuum tightness of 300～800Pa, make rapeseed oil contact the operation of 53～100 minutes with water vapour.
2. the manufacture method of refining rapeseed oil as claimed in claim 1, it is characterized in that: the amount of described water vapour is 1.0～5.0 quality % with respect to rapeseed oil.
3. the manufacture method of refining rapeseed oil as claimed in claim 1 or 2 is characterized in that: described deodorization procedures adopts the pellet type deodorization device to carry out.
4. the refining rapeseed oil that the described manufacture method of any one makes in claims 1 to 3, wherein, the content of alpha-tocopherol is more than 172ppm.
5. an acid emulsified foodstuff that contains refining rapeseed oil claimed in claim 4.
6. the method that the aldehydes in rapeseed oil is reduced, is characterized in that: under the 205 ℃～temperature condition of 225 ℃, the vacuum tightness of 300Pa～800Pa, make rapeseed oil contact 53 minutes～100 minutes with water vapour.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012120848 | 2012-05-28 | ||
| JP2012-120848 | 2012-05-28 | ||
| JP2013092773A JP6348685B2 (en) | 2012-05-28 | 2013-04-25 | Method for producing refined rapeseed oil, refined rapeseed oil obtained from said production method, acidic emulsified food containing said refined rapeseed oil, and method for reducing aldehydes in rapeseed oil |
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| CN102028046A (en) * | 2009-09-29 | 2011-04-27 | 日清奥利友集团株式会社 | Method for manufacturing edible oil |
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| CN116120987A (en) * | 2022-12-28 | 2023-05-16 | 中粮营养健康研究院有限公司 | Refining method for controlling peculiar smell of sunflower seeds and grease obtained by refining method |
| CN116120987B (en) * | 2022-12-28 | 2024-01-12 | 中粮营养健康研究院有限公司 | Refining method for controlling peculiar smell of sunflower seed oil and grease obtained by refining method |
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