KR20120098212A - Method for manufacturing sesame oil having no content of benzopyrene - Google Patents

Abstract

PURPOSE: A producing method of sesame oil without generating benzoapyrene is provided to enable users to obtain the sesame oil having high quality and safety. CONSTITUTION: A producing method of sesame oil without generating benzoapyrene comprises the following steps: removing foreign materials from sesame seeds(S100); dipping the assorted sesame seeds in water, and stirring the mixture for washing the sesame seeds(S200); removing the moisture from the sesame seeds using a dehydrator(S300); removing foreign materials from a roasting pot using air(S400); inserting the washed sesame seeds into the roasting pot, and roasting the sesame seeds at 200-220 deg C for 20-30 minutes while removing dust by discharging air from the pot by force(S500); reducing the temperature of the roasted sesame seeds by ventilating(S600); and stirring the cooled sesame seeds for maintaining the uniform temperature, and extracting oil from the sesame seeds after inserting into an oil press while stirring(S700). [Reference numerals] (S100) Assorting; (S200) Washing; (S300) Dehydrating; (S400) Roasting pot washing; (S500) Roasting and air-discharging; (S600) Cooling; (S700) Stirring and oil-extracting

Description

METHOD FOR MANUFACTURING SESAME OIL HAVING NO CONTENT OF BENZOPYRENE}

The present invention relates to a method for producing sesame oil containing no benzopyrene and to sesame oil containing no benzopyrene prepared using the same.

Sesame is a yearly plant of Sesameaceae, also known as Homa, Jima, or Scented Horses. It has many species of origin. It has been cultivated. There are currently about 37 species, including wild ones, but only one species with the scientific name Sesamum indicum L.

The general composition of sesame seeds is 45% to 52% (average 48%) of lipids, contains 20% protein and 15% carbohydrates, and also contains fiber, minerals and vitamins. Known as plant seeds. Sesame oil is a type of seasoning that has been widely used in various dishes as a flavor rather than as a common fat or oil in our country. Thus, the biggest reason that sesame oil has been used for a long time in our country is because of the scent of sesame oil. The scent of sesame oil is the protein and carbohydrates in the sesame during the roasting process of sesame, causing a mailald reaction to produce scents such as aldehydes, ketones, pyrazine, furan, and pyrrole. It is known to give a distinctive scent. The fragrance component of sesame oil is composed of about 100 or more kinds of ingredients, and the most influential flavor of sesame oil is known as a compound of pyrazine, and especially dimethyl pyrazine, specifically 2,6-dimethyl pyrazine And 2,6-pyrazine are known as the main compounds of sesame oil with a scent.

Sesame oil using sesame seeds is produced in a roasting step of roasting sesame oil using a roaster at a high temperature and milking step by pressing the roasted sesame oil. Sesame oil prepared by the general sesame oil manufacturing method is benzopyrene (a kind of polycyclic aromatic hydrocarbon compound) is generated when roasting sesame seeds in the roasting step.

Polycyclic aromatic hydrocarbons (PAHs) are known as 200 derivative compounds, their carcinogenicity has been found. Among them, benzopyrene (3,4-benzopyrene) is found to be particularly carcinogenic. Benzopyrene is a carcinogen and contains not only carbon and hydrogen but also other elements such as nitrogen, sulfur and oxygen. It has low solubility in water and is well soluble in oil. It is also produced by combustion or high temperature pyrolysis. In foods, foods that are produced during the heating process of foods are produced by incomplete combustion of carbohydrates, proteins, fats, etc., which are the main ingredients of foods, at high temperature cooking and processing of foods, especially char-grilled meats. , Benzopyrene is produced and detected in smoked products, and it is known to contain a lot of benzopyrene in processed foods and high-temperature cooked foods such as pressed oils and coffee.

Therefore, since 2001, Korea Food and Drug Administration has been taking precautionary measures such as continuously conducting survey on benzopyrene in food. In addition, we are promoting reduction of benzopyrene, which can be generated during the manufacturing process, and preparing management plans for reducing the benzopyrene in edible fats and fats by setting the benzopyrene standard to 2µg / kg.

However, most sesame oils sold in Korea currently contain less than 3.0 ㎍ / kg of benzopyrene and more than 10 ㎍ / kg of benzopyrene, which exceeds most of the benzopyrene standards of the Korea Food and Drug Administration. As a matter of fact, it is urgent to develop a manufacturing method of sesame oil to minimize the content of benzopyrene.

Efforts to minimize the content of benzopyrene have been studied in the industry and academia. Recently, in this regard, a manufacturing method patent (Korean Patent 10-0891566) for minimizing the content of benzopyrene also attempted to minimize the benzopyrene content by adjusting the manufacturing process. Compared with the conventional method, relatively little benzopyrene was detected, but it was found that benzopyrene was still detected when sesame eggs were uneven. In addition, a method of preparing sesame oil which minimizes the benzopyrene content using the peeling technology has also been filed (public utility model 20-2010-0012075). Although the content of benzopyrene was lowered, it was found that it still contained benzopyrene.

Efforts have been made in academia, and sesame oil is published in a paper published by the Korean Society of Food Preservation and Distribution (Kim Hyung-yeol, Korean J. Food Preserv.Vol. 15, No. 4. pp. 556-561, August 2008). The change in the content of benzopyrene according to the manufacturing conditions was observed. Here we tried to minimize the content of benzopyrene through differentiation of the roasting method, but benzopyrene was still detected. The paper discloses that the content of benzopyrene may be different during sesame oil production while maintaining 120 ° C, 150 ° C, 170 ° C and 220 ° C in the roasting process. However, it was confirmed that about 1.8 ug / kg of benzopyrene was still detected.

Therefore, as a result of developing and researching to improve the sesame oil manufacturing process to solve the problem of remaining benzopyrene in the sesame oil manufacturing process as described above, by developing a sesame oil manufacturing process that does not contain any benzopyrene as in the present invention, The object of the invention has been achieved.

In order to solve the above purpose,

The present invention is a screening step (S100) for removing impurities contained in sesame seeds; Washing step (S200); Dehydration step (S300); Stir-frying pot washing step (S400); Roasted sesame, stir-vented exhaust step for forced exhaust (S500); Cooling step (S600); And it provides a sesame oil production method and sesame oil using a benzo pyrene is not produced, including a stirring milking step (S700) for stirring and milking.

Hereinafter, the present invention will be described in detail.

The present invention is a screening step (S100) for removing impurities contained in sesame seeds; Washing step (S200); Dehydration step (S300); Stir-frying pot washing step (S400); Roasted sesame, stir-vented exhaust step for forced exhaust (S500); Cooling step (S600); And it provides a method of producing sesame oil that does not produce benzopyrene, including stirring and milking the stirring milking step (S700) (see Figure 1).

The sorting step (S100) includes removing impurities such as soil, sand, weeds, twigs, and immature sesame eggs, and removing metal components such as metal pieces or metal powder using magnets. can do. The metal component means a metal piece or a metal powder which may be included in the process of being transported in the harvesting step of sesame, and may include iron or copper. In the metal removal step, a metal component is a process of removing a small piece of metal using a strong magnet while removing the physical component by weight.

The washing step (S200) means a step of removing foreign matters such as dust or impurities contained in the selected sesame using water. In general, the washing step refers to a process in which sesame is precipitated in water and stirred for 3 to 15 minutes using a screw or the like to remove dust or suspended matter such as chaff from the sesame surface.

If the foreign matter is not sufficiently removed in the screening step or washing step, foreign matter such as dust and suspended matter in the roasting step (S500) is incompletely burned during the roasting process to generate benzopyrene. In addition, when pieces of metal or metal powder are mixed during the roasting step, the temperature of the sesame seeds becomes uneven in the roasting step, thereby generating benzopyrene.

Therefore, the foreign material removal process is a very important step in the sesame oil manufacturing process, it is preferable to repeat 2 to 5 times.

Dehydration step (S300) in the above, means a process of lowering the content of the water of the washed sesame, it is possible to lower the content of water through natural drying through a dehydrator or left. Dehydration is carried out until the water content is 10% to 40% or less, preferably 10% to 35%, and most preferably 20% to 30%.

The stir fryer washing step (S400) refers to a process of washing the stir fryer using compressed air such as an airbrush before putting the washed sesame seeds into the stir fryer. Even if all the sesame seeds are removed after roasting the sesame seeds, a dusty or fine sesame residue remains on the stir-fryer. Although there is a possibility of the formation of benzopyrene due to uneven heating even in the presence of a small amount of sesame residue, it is preferable to remove the residue using compressed air such as an airbrush for 1 to 10 minutes. However, it is also preferable to remove sesame residues using a negative pressure, such as a vacuum cleaner, as well as compressed air during the stir-flushing washing step.

The roasting step (S500) is a step of roasting the sesame seeds so that the epidermis of the sesame seeds swells and becomes dark brown, is a process of roasting at a high temperature so that the fats and oils contained in the sesame seeds are easily separated. In this case, since benzopyrene may be generated when heated at an excessively high temperature for a long time, roast between 190 ° C. and 230 ° C. However, it is preferable to roast between 195 ℃ to 220 ℃, it is most preferred to roast at 200 ℃ to 210 ℃. In addition, the roasting time can be roasted for about 10 to 40 minutes, it is preferable to roast for about 20 to 30 minutes. In addition, it is checked continuously to ensure that the same temperature is continuously maintained so that 200 ℃ to 210 ℃ can be maintained. Temperature is measured every 5 minutes up to 180 ° C, but it is preferable to maintain the set temperature by measuring every second above 180 ° C. The stir-fryer is preferably an electric heating stir-fryer, but is not limited thereto.

Sesame seeds in the stir exhaust stage can be used both sesame and sesame peeled peeled sesame, but it is more preferable to use sesame without the sesame cuticle.

In addition, in the stir exhaust stage, smoke may come out, and such smoke is mixed with sesame dust, causing an uneven temperature distribution, and benzopyrene may be generated. Therefore, it is necessary to continuously remove the smoke and dust in the cooking pot using a motor during the roasting process. The 10-horsepower VS motor can be used, but other motors can be used as long as the smoke in the stir-fryer can be removed.

In addition, the VS motor coming out of the evacuation step should be operated after the sesame seeds are administered to the stir-fryer, in order to remove water vapor generated by evaporation of water remaining after dehydration even before roasting.

In the cooling step (S500), since the sesame after the roasting step is very high temperature, the temperature of some sesame seeds can rise to a high temperature only by the mutual contact of the sesame particles, it is cooled to suppress the temperature rise of the sesame seeds. Although cooling can be performed through natural leaving, it is preferable to cool through a selection process once or twice using a selection machine. However, any device that can suppress the rise in temperature of heated sesame seeds is available.

The stirring milking step (S600) is a process of milking using a milking machine, while stirring to maintain the uniform temperature of the roasted sesame seeds in the roasting step. Sesame after the roasting stage is very hot. If the sesame seeds are directly put into the milking machine, the temperature of the sesame seeds becomes uneven due to friction with the surrounding sesame seeds, so benzopyrene may occur during the milking step. Stir. The stirring process may use a screw or the like, but is not limited to the sesame seeds fed into the milking machine can be continuously stirred.

Milking machines are available with traditional compactors and expellers. However, the expeller can squeeze and adjust the condition while visually checking the state of the sesame oil, which is the residue of sesame after milking, so the milking is done with the traditional presser putting a large amount of roasted sesame seeds in one space and sealed. In the process of stir-fried fried sesame seeds, heat is generated, and the benzopyrene is generated by the heat, so the expeller rotates the screw and milks the sesame seeds in front of them. You can prevent burning stir-fried sesame seeds. Therefore, in order to lower or remove the content of benzopyrene, it is more preferable to use an exeller. The milking machine may be milked at a pressure of 600-610kgf / cm ² at 50 ° C to 70 ° C, but is not limited thereto.

Sesame oil production method according to the present invention by improving the process for producing the existing sesame oil, it was possible to obtain sesame oil from which the benzopyrene was not previously obtained completely, this improved production method has an excellent effect compared to the conventional production method Is the same.

The present invention relates to a method for manufacturing sesame oil containing no benzopyrene at all by removing all of the benzopyrene carcinogens in the sesame oil manufacturing process, and ensuring high quality safety without containing any carcinogenic substances. It is a very useful invention that can prepare sesame oil.

1 is a manufacturing process diagram illustrating each process for producing sesame oil containing no benzopyrene.
2 is a view showing a manufacturing process for preparing sesame oil containing no benzopyrene.
Figure 3 is a test report that the benzopyrene was not detected in sesame oil, prepared by setting the roasting temperature 220 ℃ prepared in one embodiment of the present invention.
Figure 4 is a test report that the benzopyrene was not detected in sesame oil, prepared by setting the roasting temperature 220 ℃ prepared in one embodiment of the present invention.

Hereinafter, the present invention will be described in detail through examples.

The following examples illustrate the present invention in detail, and the content of the present invention is not limited by the examples.

< Manufacturing example > How to Make Sesame Oil

<1-1> Screening Step

Impurities such as soil, sand, weeds, twigs, and immature sesame grains mixed with the received sesame seeds were removed, and the sesame seeds were sorted.

In the sorting step, the raw material passes between the magnetic rods (Hoppa magnets, 10,000 Gaussian magnetic rods, and Ilhwa Magnetic Technology) to perform a metal removal step of sorting metal components, so that only soil, sand, weeds and branches Instead, metal components such as metal chips and metal powder were removed.

<1-2> washing step

Sesame material filtered out foreign matter was precipitated in water and then washed with a screw or the like for 5 to 15 minutes to remove foreign matters such as dust, sesame seeds on sesame seeds.

<1-3> Dehydration Step

After washing, dehydration was performed using a dehydrator to lower the amount of water contained in sesame seeds.

<1-5> Stir-frying  step

Before the sesame seeds were put into the stir-fryer, the inside of the stir-fryer was cleaned using an airbrush (compressor, purchased from Busan Sasang Tool Market) to remove sesame dust or foreign matter remaining in the previous roasting process.

<1-6> Stir-fry stage

After the washing pot was finished, the dehydrated sesame was put in a stir-frying pan (purified by a sacred food machine or rubella machine), and heating was started. Before heating to 180 ℃, the temperature was adjusted by checking the temperature at 5 minute intervals, and after 180 ℃, the temperature could be raised to 200 ℃ or higher instantaneously, so the temperature was measured every second. It was set to stop and adjusted not to exceed 210 degreeC. In order to maintain the roasting temperature from 200 ° C to 210 ° C, the temperature of the cooking pot was set to 205 ° C ± 5 ° C.

In addition, by using a 10-horsepower VS motor (purchased at the Busan Sasang Tool Market) during the roasting step, the smoke and sesame dust produced during continuous roasting were forcibly removed. As described above, after performing the roasting exhaust step for 25 minutes, the roasting was stopped.

<1-7> cooling stage

Since the sesame seeds after the roasting step are high temperature, in order to suppress abnormal temperature rise due to friction between the sesame seeds, the sesame seeds were cooled before the milking process. In the natural cooling method, the temperature increase of sesame seeds was suppressed through the selection process about two times using a selection machine.

<1-8> Stirring Milking Step

The cooled sesame seeds were added to an expeller (expeller, purchased from Sinsung Food Machine) milker, and stirred to maintain the temperature of the sesame seeds through continuous stirring in the process of feeding into the expeller milker. The stirring process was carried out and the sesame seeds were fed into the expeller milking machine.

< Experimental Example > In sesame oil  Investigation of the amount of benzopyrene

The investigation of the content of benzopyrene contained in the sesame oil obtained by the above method was carried out by the Korea Institute of Analytical Technology, Inc., and the experimental method was measured by the Food and Drug Administration measured the benzopyrene content.

The experimental method was extracted with N, N-dimethylformamide-water (9: 1) mixture and hexane using 3-methylcholaterene as an internal standard in sesame oil, and then purified by SPE (Solid Phase Extraction) cartridge. Analyzed with liquid chromatograph / fluorescence detector.

As a result, it was confirmed that benzopyrene was not detected at all in the case of maintaining 220 ° C. and 200 ° C. to 210 ° C. in the roasting exhaust step in the sesame oil using the sesame oil manufacturing method of the present invention (see FIGS. 3 and 4). ).

Stir temperature Benzopyrene  content 220 ℃ Not detected 200 ° C to 210 ° C Not detected

These results not only meet the 2.0 ug / kg published by the Food and Drug Administration, but also can be said to be a high commercial value manufacturing method that could not be obtained from existing manufacturing methods.

The present invention relates to a sesame oil manufacturing method containing benzopyrene, a carcinogen, was able to completely provide benzopyrene harmful to the human body, which could not be removed by the conventional manufacturing method, and thereby to produce high quality sesame oil with guaranteed stability. As such, industrial use value is expected to be very high.

S100: sorting step, S200: washing step, S300: dehydration step, S400: stir-frying step, S500: stir-fry step, S600: cooling step; S700: stirring milking step

Claims (12)

Sorting the sesame by removing impurities mixed in the harvested sesame (S100);
Washing the precipitate by sedimenting the selected sesame water and then stirring (S200);
Dehydration step of removing water by using the washed sesame dehydrator (S300);
A stir-frying washing step (S400) for removing impurities in the stir-frying using air;
After the washed sesame, put in the stir-fry, roasted for 20 minutes to 30 minutes at 200 ℃ to 220 ℃, stir exhaust step (S500) to remove dust through the forced exhaust to remove dust;
Cooling step of lowering the temperature of the roasted sesame through the ventilation (S600); And
Stirring milking step (S700) for stirring the cooled sesame seeds in order to maintain a uniform temperature and milked by putting in a milking machine;
Sesame oil production method does not produce benzopyrene containing. The method of producing sesame oil according to claim 1, wherein the roasting temperature is maintained at 200 ° C to 210 ° C. The method of producing sesame oil according to claim 2, wherein the roasting temperature is maintained at 205 ° C. The method of claim 1, wherein the milking machine is an expeller. The sesame oil manufacturing method of claim 1, wherein the sorting step removes a metal component using a magnet. According to claim 1, Sesame oil production method characterized in that the content of water to 10 to 40% in the dehydration step. The method of claim 5, wherein the water content is 15 to 35% in the dehydration step. According to claim 6, Sesame oil production method characterized in that to contain 20 to 30% of water content in the dehydration step. The method of claim 1, wherein the cooling step is cooled using a selector. The method of claim 9, wherein in the cooling step, the sesame oil manufacturing method, characterized in that 1 to 4 times the selection process. The method of claim 10, wherein in the cooling step, the sesame oil manufacturing method, characterized in that 1 to 2 times the selection process.
Sorting the sesame by removing impurities mixed in the harvested sesame (S100);
Washing the precipitate by sedimenting the selected sesame water and then stirring (S200);
Dehydration step of removing water by using the washed sesame dehydrator (S300);
A stir-frying washing step (S400) for removing impurities in the stir-frying using air;
After the washed sesame seeds, put in the stir-fry, roasted for 20 to 30 minutes at 200 ℃ to 210 ℃, stir exhaust step (S500) to remove dust through the forced exhaust to remove dust;
Cooling step of lowering the temperature of the roasted sesame through the ventilation (S600); And
Stirring milking step (S700) for stirring the cooled sesame seeds in order to maintain a uniform temperature and milked by putting in a milking machine;
Sesame oil does not contain benzopyrene prepared by a sesame oil production method comprising a.

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