• Korean Journal of Food Science and Technology
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• v.40 no.1
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• pp.15-20
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• 2008

This study investigated the antioxidant content and oxidative properties of roasted sesame oil during manufacturing and storage at $25^{\circ}C$ in the dark for 18 months. The manufacturing steps included pressing of the roasted sesame seeds, and then three filtering steps. Filtering decreased the oil viscosity, but increased free fatty acid content. The peroxide value (POV) was not affected by filtering. Sesamin, sesamolin, and tocopherol levels were significantly higher in the $3^{rd}$ filtered oil as compared to the other oils; however, sesamol content was reduced. The roasted sesame oil oxidized slowly during storage at $25^{\circ}C$ in the dark, and there was no POV change up to 9 months of storage. The levels of sesamol, sesamin, sesamolin, and tocopherols in the oil decreased with storage time, and the tocopherol decomposition rate (-3.04%/month) was higher than that of total lignan compounds (-1.06%/month). Therefore, these results suggest that tocopherols have priority over lignan compounds in performing as antioxidants in roasted sesame oil during storage.

• Journal of the Korean Society of Food Science and Nutrition
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• v.30 no.4
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• pp.635-640
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• 2001

These studies were carried out to develop sausage using extracts from waste resources. The changes of pH and moisture contents were tended to be a similar to control, respectively ranged in pH 6.0~6.4 and 62~60% in moisture content. However, the water holding capacity of sausage added with chitosan and sesamol gradually were tended to be a little high, compared to control. The treatments using natural resource by-product revealed a low TBARS value, compared to control. This means that sausage added with natural by-product seem to be extend its shelf-life during storage. At the same time, the TBARS values were very similar to sausage added with 0.5% potassium sorbate. The residual nitrite contents of sausage added with natural resource by-product were tended to be a little lower than that of control. As storage time goes by, the nitrite contents of sausage product gradually were a little more decreased during storage at 3$0^{\circ}C$ than those of storage at 1$0^{\circ}C$. The lightness of sausage color gradually were a little more decreased during storage at 3$0^{\circ}C$ than those of storage at 1$0^{\circ}C$. The redness of sausage added with chitosan were a little highter, compared to control Sensory test suggested that the changes of sausage color, flavor, texture and taste were tended to be decreased gradually. In conclusion, sausage added with natural resource by-product was effective on the basis of the reduction in residual nitrite content and lipid oxidation.

• Korean Journal of Food Science and Technology
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• v.40 no.2
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• pp.141-145
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• 2008

Oxidative stabilities of sesame oil prepared from black sesame flour and white sesame flour, and commercial sesame oil prepared from whole white sesame were compared by measuring oxidation induction periods, peroxide values and electron donating abilities of each oil. Oxidation induction period (12.25 hr) of sesame oil prepared from black sesame flour was longer than those (4.37 and 9.1 hr, respectively) of sesame oil from white sesame flour and commercial sesame oil. Peroxide values of sesame oil prepared from black sesame flour, sesame oil prepared from white sesame flour and commercial sesame oil were 1.3, 18.2 and 1.7 meq/kg oil, respectively. We ascertained that the oxidative stability of sesame oil prepared from black sesame flour was superior than sesame oil from white sesame flour as well as ommercial sesame oil. This was based on the fact that electron donating ability of sesame oil prepared from black sesame flour was 9% higher than that of sesame oil prepared from white sesame flour at the same concentration. The superior oxidative stability of sesame oil prepared from black sesame flour was expected, not only because only it had lignans such as sesamol and sesamolin, but also because of its brownish coloring compounds such as tannin which were not contained in white sesame flour.

• Food Science of Animal Resources
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• v.35 no.2
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• pp.248-257
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• 2015

Effects of double packaging (combinational use of aerobic and vacuum conditions) and antioxidants on physicochemical properties in irradiated restructured chicken rolls were determined. Chicken breast treated with antioxidants (none, sesamol+a-tocopherol) was used to process restructured chicken breast rolls. The sliced rolls were vacuum, aerobic, or double packaged (vacuum for 7 d then aerobic for 3 d) and electron beam irradiated at 2.5 kGy. Color, 2-thiobarbituric acid reactive substances (TBARS), oxidation reduction potentials (ORP), and volatile profiles of the samples were determined at 0 and 10 d. Irradiation made restructured chicken rolls redder (p<0.05), and the increased redness was more distinct in irradiated vacuum-packaged than irradiated aerobic or double packaged meats. TBARS values of antioxidant-treated double packaged rolls were lower than even nonirradiated vacuum-packaged meat, and those were distinct at 10 d (p<0.05). ORP and lipid oxidation values were lower in irradiated vacuum and double packaged samples than those in irradiated aerobic packaged ones at 0 d (p<0.05). Irradiation of restructured chicken rolls increased the amount of total volatiles. Considerable amounts of off-odor volatiles were reduced or not detected by double packaging and antioxidant treatment at 10 d. Therefore, the combined use of antioxidants and double packaging would be useful to reduce redness and control the oxidative quality changes of irradiated restructured chicken rolls

• Journal of the Korean Home Economics Association
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• v.19 no.2
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• pp.189-198
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• 1981

The Gwugonsiuebang is a book of Korean woman's life in the Yi dynasty which published I 1653 by Mme. Jang. I have studied the food habits of the Yi dynasty that wrote in Gwugonsiueband as following. The staple foods are Guksu (wheat vemicell as like western noodles) 5, Mandu (bun stuffed with seasoned meat and vegetables) 6 kinds in this book. the side dishes are Guk (soup) 8, J'm (steamed meat or fish) 6, chae6, Nooruemi 5, Hyae (sliced raw fish) 3, Jockpyun (jellied beef soup) 3, Jockgall (salted sea food) 2, Jock (skewer or broach) 2, jihee 2, Sun (Steaming of stuffed vegetable) 1, Bockuem (saute) 1, Jon (pan fried fish) 1, Gui (meat or fish grilled with seasoning) 1, and the other 13 kinds. The desserts are D,ock (Korean rice cake) 11, jabgwa 8, Beverages 5 kinds and Jungwa 1 kind. The alcohol and fruits wine are 51 kinds. The alcohol and fruits wine are 51 kinds. The seasonings are Soybean sauce, oil, Sesamol oil, pepper, Ginger, Garlic, Vinegar, Wine, Salt, Bean paste etc. Raw materials of Guksu, Mandu, D'ock, Jabgwa, Beverage, Wine, vinegar are all carbohydrates. It shows that a tendency of Korean people too much take a carbohydrates. Now and then, there are no special difference of winter over pass for vegetables, fruits, dried beef, dried fish and salt fishes. In yi dynasty, there are 62 kinds of table ware and cooking kitchen utensils, but many of them come to uselessness. 19 kinds of measuring unit are very non-scientific because that is not by weight but by bulk or volume. There are many food making terms which are 198 kinds of prepared cooking term, 11 kinds of cutting term and 20 kinds of boiling term. And 10 kinds of expression of taste can see this book.

• Journal of the Korean Society of Food Science and Nutrition
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• v.12 no.2
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• pp.150-175
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• 1983

The paper is to classify the terms of foods, wines, relish(komyungs), seasonings and cooking processes in Korean cooking books. The results of this study are follows : The dishes which were made from cereals are Bab(boiled cooked rice), Juk(gruel), Miuem(Thin rice gruel), Noodle, Sujebee, Mandu(Pyun su, dumpling), D'ockuk, Pumbok, Yaksik, D'ock(Korean rice cake) etc. The terms of side dishes are Tang (Kuk, Kaeng), Chigae(Jochi Kamjeang, Jijimee, Tugari, Wakjeoji), Jim(Jeung), Sun, Jungol(Abok jaeng ban, sinsulro, punggujigol), Bockum, Kui, Jorim, Cho, Jun(Jijim, Jeenya, Puchigae, Bindae-dock, Nureumi) Jeok(San-jeok, Nuremjeok, Jijimnureumjeok), Hoe (Saenghoe, Sukhoe, Kanghoe, Sujeonghoe, A chae), Mareum chan (Po, Jaban), Changachi (Jangkwa, Sukchae (namul)-Japchae, Kyujachae), Muchim, Sam, Tuigim, Pyunyuk, sundae, suran, Jeockal (Sikhae), Jockpyun, Mal-i, Jihi, Kee, Pojeok, Gimchi etc. The kinds of Jabgwas are Kangieong(Sanja), Yumilgwa, Suksilgwa, Dasik, Jeonggwa, Yeocgangjeong, Gwapyun etc. The kinds of beverages are Hwachaes and Teas. The terms of the wines in Korean cooking bok are 173 kinds. There are 21 kinds of Relish(komyung). There are 12 kinds of Jang, and the terms of the seasonings are as follows: mustard, cinammon, pep per, powder of peppers, powder of sesame, honey, garlic, ginger, sugar, salt, vinegar, syrup, yunjeup, jochung, sesamol-oil, chojeckuk, sesame, greet-onion, powder of black pepper, oil etc. There are 547 kinds of prepared cooking terms, 36 kinds of cutting terms and 34 kinds of boiling term in food making terms.

• Journal of the Korean Applied Science and Technology
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• v.4 no.1
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• pp.9-18
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• 1987

The effects of procedures for preparation of fatty acid methyl esters for gas chromatography were investigated. A quantitative comparison of four procedures for the preparation of the fatty acid methyl esters from Korean sesame seed lipids which can be representative of fatty acid ranges of Korean vegetable oils has been made. The procedures employed were $BF_3$-methanol, HCI-methanol, sodium methoxide-methanol, and tetramethylammonium hydroxide-methanol. Twelve fatty acids ranged from 14:0 to 24:0 were identified in the lipids from Korean white and black sesame seeds. All four procedures gave similar results for the fatty acids, 16:0, 18:0, 18:1, 18:2, and 18:3 present in the range of $1{\sim}44%$ but only in the HCI-methanol procedure, the fatty acids, 16:1, 20:0, 22:0, 24:0 present in the range of $0.02{\sim}1%$ showed the lowest values. When using tetramethylammonium hydroxide-methanol procedure for determination of total fatty acid composition from white and black sesame seed lipids, unsaponifiable matters including sesamol, sesamolin and sesamin present in the seed lipids are not removed from the resulting reaction mixture. Thus the transesterification mixture is used without further treatment for injection into the gas chromatography. However, the gas chromatographic analysis of the transesterification mixture showed that the unsaponifiable matters had no effect on the fatty acid composition of the seed lipids. From the results, it appears that the $BF_3$-methanol, sodium methoxide-methanol and tetramethylammonium hydroxide-methanol procedures can be used to prepare fatty acid methyl esters from Korean vegetable oils. Among the methods, the tetramethylammonium hydroxide-methanol procedure, which give total fatty acid composition, glyceride fatty acid composition and composition of free fatty acids present, appears to be a simple, convenient and quantitative procedure and applicable to samples containing broad ranges of fatty acids.

• Korean Journal of Food Science and Technology
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• v.49 no.4
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• pp.421-429
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• 2017

In this study, we investigated the effect of roasting temperature on nutrient content, digestive enzyme activities, and antioxidative properties of sesame seed juice. The sesame seeds were either roasted at 160, 200, and $240^{\circ}C$ or not roasted, and the juice was extracted using a low-speed juice extractor. Owing to the short duration of roasting, benzo[a]pyrene were not detected and trans fatty acids were negligible detected in all sesame seed juices. The sesame seed juice contained abundant nutrients such as minerals, vitamins, and fatty acids. The contents of minerals, vitamin B1 and B3, and sesamol increased with increase in roasting temperature; however, the levels of fatty acids, vitamin B2, sesamin, and sesamolin decreased. In addition, the antioxidant content and antioxidative activities of sesame seed juice increased with increase in roasting temperature. Therefore, these results suggest that roasted sesame seed juice possesses high antioxidative activities, which may be beneficial for preventing oxidative damage in the body.

• Korean journal of food and cookery science
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• v.23 no.6
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• pp.919-929
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• 2007

In this study, we applied a steam treatment to black sesame to determine the optimum treatment conditions, and also examined the antioxidant effects and quality characteristics. For black sesame gruels, roasting can be used in a variety of ways in cooking to enhance functionality and preference. We found that the solid content increased with the addition of 70% steamed black sesame in the glutinous rice-black sesame gruel samples, and for glutinous black rice-black sesame gruels, solid content was highest with the addition of 50% steamed black sesame. For the chromaticity, the L-value decreased as the addition of steamed black sesame increased in all the black sesame gruels made with the steamed black sesame. With regard to texture, the cohesiveness, springiness, gumminess, chewiness, and adhesiveness of the gruels made with steamed black sesame were highest when 60% steamed black sesame was added. The results of the sensory test showed that overall preference was highest for the glutinous rice-black sesame gruel made with 60% steamed black sesame, while the glutinous brown rice-black sesame gruels were preferred with 60% and 70% additions, and the glutinous black rice-black sesame gruel was deemed best with 60% steamed black sesame. The most appropriate ratios of steamed black sesame in the black sesame gruels, with regard to overall quality, are as follows: 60% steamed black sesame for the glutinous rice-black sesame gruel, 60% and 70% steamed black sesame for the glutinous brown rice-black sesame gruel, and 60% steamed black sesame for the glutinous black rice-black sesame gruel.

• Journal of the East Asian Society of Dietary Life
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• v.18 no.5
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• pp.812-821
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• 2008

The characteristics of cold-pressed sesame oil (CPSO), virgin sesame oil (VSO), commercial heat-press extracted sesame oil (CHPESO) and commercial supercritical fluid extracted sesame oil (CSFESO) were investigated. The total phenolics of CPSO, VSO, CHPESO and CSFESO were 31.27, 68.33, 60.65 and 31.44 mg/100 g, respectively. Their $\gamma$-tocopherol contents were 32.82, 31.66, 29.26 and 26.87 mg/100g, respectively. The sesamol, sesamin, and sesamolin contents of VSO were the highest. The oxidation induction period (4.53 hr) of CPSO was lower than that of VSO, CHPESO and CSFESO (19.90, 16.50, and 12.23 hr, respectively). CPSO was rapidly oxidized during storage at $60^{\circ}C$ in the dark, and its peroxide value (POV) was increased about 14 times. Although there were few differences in electron-donating abilities at low concentrations (below 100 mg%), VSO showed the highest electron-donating abilities at higher concentrations (77.76% at 10,000 mg%). Contents of linolenic acid and oleic acid were $40.35{\sim}43.98$ and $31.59{\sim}33.46\;g$/100 g, respectively. CPSO contained the highest amount of oleic and linoleic acid among the variously extracted sesame oil.