• Journal of Dairy Science and Biotechnology
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• v.41 no.2
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• pp.67-75
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• 2023

Hibiscus is rich in acids, anthocyanins, flavonols, oils, proanthocyanidins, and various pigments. It is utilized for medicinal purposes, to improve human health, and as a galactagogue to stimulate milk production in cows. Due to its biofunctional activities, hibiscus oil has broad applications spanning different fields. This study analyzed the pH and organoleptic quality attributes of three different vegetable-based milk analogs supplemented with hibiscus oil at 0%-1.5% concentrations. The results revealed that the addition of hibiscus oil did not affect pH; however, as the concentration of the hibiscus oil increased, the organoleptic quality attributes of the milk analogs supplemented with it decreased. All three milk analogs supplemented with 0.25% hibiscus oil demonstrated favorable attributes compared to the control group. This study provides valuable foundational data for developing new vegetable-based milk analogs that possess enhanced biofunctionality through the supplementation of hibiscus oil.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.4
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• pp.555-560
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• 1994

In order to observe the effects of the fees mixed with the lard and two vegetable seed oils on the fatty acid compositions of liver and brain tissue, the oils mixed with 2.5% lard and various levels of perilla oil and evening primrose oil were administered to the male rats of the Sprague-Dawley for 4 weeks . In the fatty acid composition of liver lipid, saturated fatty acid (SFA) contents were rich in the phopholiipide and cholesteryl ester fraction. Monounsaturated fatty acid (MUFA) contents were rich in the triglyceride fraction and polyunsaturated fatty acid (PUFA) contents were rich in the phospholipid fraction. In the fatty acid composition of liver lipid fractions, according as the contents of mixed perilla oil decreased and the contents of mixed evening primrose oil increased , n -3 PUFA contents tended to decrease and n-6 PUFA contents tended to increase. Fatty acid composition of liver lipid fractions were influenced from the fatty acid composition of the test lipids. In the fatty acid composition of brain phospholipd, PUFA contents (40%) were rich and according as the contents of mixed evening primrose oil increased, the ratio on n-3/n-6 PUFA and eicosapentaenoid acid (EPA) /arachidonic acid (AA) tended to slightly decrease.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.4
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• pp.548-554
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• 1994

In order to observe the effects of the feeds mixed with the lard and two vegetable seed oils on the fatty acid compositions of serum lipkid and lipoprotein, the oils mixed with 2.5% lard and various levels of perilla oil and evening promrose oil were administered to the male rats of the Sprague-DAwley for 4 weeks. In the fatty acid compositions of serum lipid and serum lipoprotein fractions, as the content so f mixed perilla oil decreased and the contents of mixed evening primrose oil increased, n -3 PUFa (polyunsaturated fatty acid) contents and ratio of EPA/AA (eicisapentaenoiidacid/arachidonic acid) tended to decrease, but n-6 PUFA contents and ratio of AA/PUFA tended to increase. Fatty acid compositions of serum lipid and serum lipoprotein fractions were influenced from the fatty acid composition of the test lipids.

• Journal of the Korean Applied Science and Technology
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• v.15 no.4
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• pp.45-56
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• 1998

Methyl fructoside oleic acid polyester(MFPE), fructose-based sugar polyester, was synthesized by solvent-free, soap-free transesterification of methyl oleate with methyl fructoside(MF) as a sugar starting material in the presence of conventional potassium carbonate basic catalyst. Methyl fructoside was found to be an effective sugar starting material, because of its low softning point, high heat stability, high miscibility, and high reactivity than other sugars. Yield 98% of purified MFPE based on initial weight of MF was obtained at 1:5 of the molar ratio of methyl fructoside to methyl oleate, 2%(w/w) of potassium carbonate catalyst content, 20${\sim}$200mmHg of reduced pressure and $180^{\circ}C$ of reaction temperature. MFPE structure was confirmed by infrared and proton nuclear magnetic resonance spectroscopy. Physical properties of methyl of fructoside oleic acid polyester such as viscosity, HLB, solubility, color, refractive index, specific gravity, and density were similar to physical properties of sucrose polyesters(SPE) and vegetable oils. Then, it was elucidated that MFPE was sufficient to replace the SPE and conventional oils.

• Journal of the Korean Applied Science and Technology
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• v.22 no.2
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• pp.106-115
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• 2005

Bio-diesel as fatty acid methyl ester was derived from such oils as soybean, peanut and canola oil by lipase catalyzed continuous trans-esterification. So the activation of lipase(Novozym - 435) was kept to be up to 4:1, the limiting molar ratio of methanol to oil under one-step addition of methanol due to the miscibility of oil and methanol through the static mixer for 4hrs and the elimination of glycerol on the surface of lipase by 7wt% silica gel. Therefore the overall yield of fatty acid methyl ester from soybean oil appeared to be 98% at 50$^{\cdot}C$ of reaction temperature under two-steps addition of methanol with 2${\times}$2:1 of methanol to oil molar ratio at an interval of 5.5hrs, 7wt% of lipase, 24 number of mixer elements, 0.2ml/min of flow rate and 7wt% of silica gel.

• The Journal of Korean Institute for Practical Engineering Education
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• v.3 no.1
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• pp.183-192
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• 2011

In recent years there has been an increasing focus on global warming and the exhaustion of resources caused by the heavy consumption of fossil fuels. In order to resolve these issues, biomass has gained much attention as a source of renewable energy. One area of particular interest has been the production of biodiesel. The biodiesel produced by the transesterification of vegetable oils, animal fats and waste cooking oils is expected to be one of the eco-friendly biomass-based alternatives to fossil fuels. This paper reviews some of the recent findings for the effective biodiesel production system, together with several factors affecting the biodiesel yield.

• Journal of the Korean Applied Science and Technology
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• v.11 no.2
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• pp.39-54
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• 1994

I am going to survey major topics relating to the title by analyzing the following statistical data. 1 : Global trend of production and import of oil and relating materials 2 : Global trend of major oil production 3 : Capacity of Japanese factory for oil production 4 : Situation of mechanical expression based on raw materials 5 : Change of production amounts of Oil products 6 : Oil production of each items 7 : Imported amounts of oil products 8 : Vegetable oil meals, production, import and global trend 9 : Production of mayonnaise, dressing and edible processing oils 10 : Intake of nutrients, supply of lipids, and consumption of oils 11 : Global production of oleochemicals 12 : Sales amount of oleochemicals 13 : Capacities of fatty acid and fatty alcohol factories 14 : Oleochemical production in 1995 15 : Oleochemical procuction in asia 16 : Production of surfactants for industrial use 17 : Sales amount of detergents and washing materials 18 : Production of soap and synthetic detergent in Japan 19 : Consumption of soap. detergent, and synthetic detergent 20: Relation beween synthetic detergent production and popularization 21 : Biodegradability of soft detergent

• Korean Journal of Food Science and Technology
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• v.12 no.1
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• pp.77-81
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• 1980

The effect of dietary vegetable oils, sesame, perilla, soybean and rice bran oils, on the blood cholesterol level of rabbit was examined using isocaloric and isonitrogenous diets. The gain in body weight, liver weight, serum and liver cholesterol levels, globulin, blood sugar and acid phosphatase activity in relation to cholesterol level were studied. The results are summarized as follows : 1. The gain in body weight (g/day) of rabbit was 16.3 for control, 15.3 for A, 18.3 for 15.3 for A, 18.3 for B, 15.3 for C and 18.1 for D groups. 2. Liver weight of the control A, B, C and D groups were 30.35, 37.25, 38.25, 31.05 and 39.54, respectively. 3. Serum cholesterol levels (mg/100 ml serum) of the control, A, B, C, and D groups were 71.5, 112.0, 110, 93 and 96 respectively. 4. Liver cholesterol levels (mg/100 ml liver fat) of the control, A, B, C and D groups were 255, 292, 255, 317 and 195 respectively. 5. The contents of alpha-1-globulin for control was 0.60 %, for C, 0.35 % and for D groups, 0.32% of total globulin. The content of alpha-2-globulin for control was 0.68 % of total globulin and for D, 0.26 % of total globulin. 6. The contents of blood glucose (mg/100 ml) of the control, A, B, C and D groups were 40.34, 22.37, 77.0, 28.6 and 34.1 respectively. 7. Acid phosphatase of the control, A, B, C, and D groups were 3.95, 4.52, 3.98, 4.55 and 4.53 nM/hr/l serum respectively. 8. According to the regression and correlation in coefficient in blood components of rabbit, there were positive correlations between serum cholesterol and alpha-1-globulin, and between liver cholesterol and gamma-globulin.

• Journal of Nutrition and Health
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• v.30 no.3
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• pp.286-298
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• 1997

This study was aimed at examining the pattern of dietary fat intake of 120 university female students living in Kongju city in order to provide baseic data for establishing the dietary grideline of desirable fat intake. The subjects were divided into three groups according to living arrangenment ; family home(FH), or dormitory(DM), or self-boarding house(SB). Fat consumption of subjects was surveyed by two-day food records, and profiles of fatty acid and cholesterol taken were calculated based upon the data reported their contents of foods. The result was that mean daily fat intake was 42$\pm$2g for FH, 48$\pm$4g for DM and 41$\pm$3g for SB. The calorie intake by fat was 20.8, 21.5, and 20.4% respectively. The ratio of P/M/S was 1.3/1.7/1 for FH, 1.3/1.6/1 for DM and 1, .5/1.5/1 for SB. And the ratio of n-6/n-3 fatty acid was 5.2/1 for FH, 8.3/1 for DM and 7.2/1 for SB. Daily cholesterol intake was 208$\pm$20mg for FH, 223$\pm$29mg for DM and 251$\pm$27mg for SB. In addition, intake of n-3 fatty acid was 1.2$\pm$0.2g for FH, 0.9$\pm$0.1g for DM and 1.2$\pm$0.2g for DB. Considering the food source of fatty acids, saturated fatty acid and monounsaturated fatty acid were taken primarily from animal foods, especially milk and milk products, and n-6 polyunsaturated fatty acid was taken from vegetable oils and fats. As a major source of n-3 fatty acid, linolenic acid was obtained through vegetable oils and fats, and eicosapentaenoic acid and docosahexaenoic acid were provided by fishes and their products. There patterns of fatty acid intakes did not differ according to living arrangement. The above results showed that intakes of fat and cholesterol, and ratios of P/M/S and n-6/n-3 fatty acid were overall desirable in all groups. However, intake of n-3 fatty acid was low in all groups. Therefore, consumption of perilla oil, legumes and fishes as a source of n-3 fatty acid should be increased by substituting other food source which provide fats and oils because calorie intake by fat was enough in these subject.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.21
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• pp.9543-9547
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• 2014

Background: The aim of this study was to investigate demographic features, dietary habits, and some possible risk factors for being susceptible to breast cancer in Iranian women. Materials and Methods: A study of dietary habits and breast cancer was conducted among 53 Iranian women with histological confirmed disease and 40 matched controls. A dietary habits questionnaire was used to evaluate the pattern of selected food intakes. The risk of cancer was analyzed after adjustment for confounding factors. Age, weight, body mass index (BMI), waist circumference, educational status, parity, lactation, marital status, menopause, history of estrogen therapy, and family history of breast disease or cancer were assessed among participants. Special attention was given to the relationship between consumption of high fat meat, milk, yogurt and cheese as well use of frying oils for frying foods, use of olive/liquid oils for cooking, removing fat from meat and poultry, removing chicken skin and not use of mayonnaise as salad dressing and the risk of breast cancer. Moreover, salad, vegetable and fruit consumption, and eating outdoors owere investigated. Results: Our results revealed significant lower education and higher BMI and waist circumference levels in patients with breast cancer. There was significantly increased breast cancer risk in overweight women in comparison with normal weight (OR=2.91, 95%CI 1.24 to 6.82). High intake of fat dairy products including milk and cheese was found to be a statistically significant factor for increasing breast cancer risk in models adjusting for age, BMI and education. Use of olive/liquid oils for cooking and avoidance of mayonnaise as salad dressing are related to lower risk of breast cancer. The frequency of vegetable and fruit consumption was significantly lower in patients with breast cancer compared to healthy women. Conclusions: Dietary habits might be risk factors for breast cancer among Iranian women. Adoption of a prudent diet could be an appropriate strategy for preventing breast cancer.