• Korean Journal of Food Science and Technology
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• v.6 no.4
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• pp.193-198
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• 1974

The antioxidant activity of ground red pepper, ethyl alcohol extracts of ground red pepper peel and alcohol extracts plus organic acid was studied by using edible soybean oil as a substrate. All the substrates were stored in a dark place at $45.0{\pm}0.5^{\circ}C$ respectively. The results of the study were as follow: 1. Ground red pepper, black pepper and cassia exhibited slight antioxidant activity and there was no significant difference in antioxidant activity among them. 2. Although both ground red pepper peel and red pepper seed showed antioxidant activity, ground red pepper peel exhibited greater antioxidant activity than ground red pepper peel did. 3. Ethyl alcohol extracts of red pepper peel showed strong antioxidant activity, but the residue did not show the antioxidant activity. 4. The antioxidant activity of the ethyl alcohol extracts of red pepper peel increased in direct proportion to the concentration of the extracts. 5. In connection with the synergistic effect of organic acid to the ethyl alcohol extracts of red pepper peel, citric acid showed a very strong synergistic effect on the antioxidant activity of red pepper, while ascorbic acid showed a weak effect. On the other hand, phosphoric acid showed an accelerating effect on the oxidation of oils. 6. The maximum antioxidant activity of the ethyl alcohol of ground red pepper peel was observed at the citric acid concentration of 0.04%, when tested at various concentration of citric acid.

• Journal of Aquaculture
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• v.9 no.4
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• pp.363-375
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• 1996

The effects of the yeast, Phaffia rhodozyme in the diet on growth, body composition, muscle elasticity and pigmentation of Israeli strain of common carp, colored carp and Nile tilapia were investigated. Ten percent of the yeast was added to semi purified diet as an experimental feed 1. Ten percent of brewers yeast in the semi purified diet (experimental feed 2) was tested for comparing the growth performance between two semi purified diets. A commercial diet was also used for the check of growth rate of the semi purified diets. All experimental fish were fed for 10 weeks. The weight gains among the experimental fish were not significantly different (P>0.05). There were not significantly different in body composition, muscle elasticity among the the fishes fed three experimental diets. There were significant differences (P<0.05) of pigment deposition in the muscle of Israeli strain of common can and on the skin of colored carp between treated and non treated group. But there were no differences of pigment deposition in flesh and skin of tilapia among the three diets.

• Culinary science and hospitality research
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• v.23 no.4
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• pp.125-134
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• 2017

This study aimed to examine quality properties of muffin by the amount of addition of Korean whole wheat flour (0%, 25%, 50%, 75%, 100%) as there is increasingly higher interest in the healthy food. The effect of Korean whole wheat flour were evaluated in terms of height, volume, weight, specific volume, baking loss rate, colorimeter, and sensory evaluation. Texture and moisture contents of muffins when storage (1, 3, 5 days) was measured. As the ratio of Korean whole wheat flour increased, the baking loss rate and weight increased, whereas the volume and specific volume was not significant. During storage, moisture content of muffins decreased significantly. The addition of Korean whole wheat flour increased lightness (L value) of crust and crumb decreased, whereas redness (a value) and yellowness (b value) increased. The control group (CON) showed the highest springiness lowest hardness. The muffin with 25% of Korean whole wheat flour (WHF25) in test group showed the high springiness low hardness. According to the sensory evaluation, the control group showed the highest score in terms of taste, however WHF25 showed the highest score in appearance, color, flavor, texture and overall acceptance, WHF25 showed the best result and the optimum addition of Korean whole wheat flour. Furthermore, this study proposes the possibility of development of various confectionery with using Korean whole wheat flour.

• Journal of Korea Trade
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• v.24 no.5
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• pp.55-70
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• 2020

Purpose - This paper aims to examines the various factors influencing the purchase decisions of Malaysian consumers for halal food and based on this analysis, to present some measures by which Korea's food industry could expand exports to the Malaysian market. Design/methodology - This research used SPSS 12.0 for descriptive analysis, ANOVA, t-tests, factor analysis, cluster analysis, and reliability analysis based on a total of 571 responses were included as the final data in the 600 surveys administered. Findings - Malaysian consumers had high trust and confidence in products that had obtained halal certifications. This reflects the cultural situation where 61% of the Malaysian population consist of Muslims. In terms of the consumption of Korean foods, items such as ramyeon, confectionery, and kimchi were found to enjoy high awareness and strong preference among local consumers, thus suggesting their competitiveness. Originality/value - This paper attempts to examine consumer characteristics - an aspect that had received insufficient treatment in previous studies on halal certifications in Muslim countries. This study found the purchase practices and influencing factors behind Malaysian consumers' purchases of imported foods and Korean foods. Therefore, it is expected that this result can give Korean food industry an insights and strategies for exporting Korean food to Malaysia.

• Food Science and Biotechnology
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• v.15 no.2
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• pp.168-172
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• 2006

Soy sauce was fermented at $20^{\circ}C$ for 100 days in onggi containers (ethnic Korean earthenware) which had been fabricated using three different glazing treatments: unglazed, glazed only on the outside, and glazed on both surfaces. The changes in microstructure and permeability characteristics of onggi containers were examined after fermentation of soy sauce. The effect of repeated use of onggi containers on the fermentation was analyzed by the contact between an aqueous model solution and the onggi containers used once for soy sauce fermentation. The levels of reducing sugar and free amino acids produced from the dissolved starch and protein, respectively, in the solution were compared between the new and reused onggi containers. The moisture permeance and gas permeabilities of the onggi jars were progressively reduced with continuing use for soy sauce fermentation, probably due to clogging of micropores by solid materials. After having been used once for fermentation, the microbial cells and/or enzymes immobilized on the surface or in the micropores of the onggi containers seemed to contribute to accelerating the hydrolytic reactions of starch and protein.

• Journal of the Korean Dietetic Association
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• v.5 no.2
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• pp.145-152
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• 1999

This study was to investigate the risk factors for the development of diabetes mellitus on healthy offsprings of Korea non-insulin dependent diabetes mellitus(NIDDM) patients. Forty four offsprings who have at least 1 parent with NIDDM and age, sex and body mass index(BMI) matched forty four healthy control subjects were collected for this study. BMI, skinfold thickness, waist/hip circumference ratio(WHR), fasting blood glucose, serum insulin, serum lipid profile, nutrient intakes and food behaviors were measured. There were no significant difference in BMI, WHR, fasting blood glucose, insulin, total cholesterol, triglyceride and daily nutrients intake between offsprings and controls. But skinfold thickness, LDL-cholesterol level and sweety food eating frequency were significantly higher in male offsprings than in male controls. And HDL-cholesterol was significantly lower in male offsprings than in male controls. Although there were no significant difference, offsprings had a overeating habit and ate more confectionery and greasy food than controls.

• Journal of the Korean Society of Industry Convergence
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• v.26 no.6_2
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• pp.1025-1031
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• 2023

In order to examine the pre-industrial application product quality characteristics of yanggang (a type of traditional Korean confectionery) with varying levels of Palatinose, this study conducted multiple preliminary experiments. By applying different amounts of Palatinose (1%, 2%, 3%, 4%) and adhering to a recipe suitable for commercial products, the yanggang was produced under controlled manufacturing conditions. While the moisture content of the manufactured yanggang adhered to the established manufacturing standard, showing minimal variations, there were statistically significant differences observed with an increase in the Palatinose proportion, exhibiting a trend akin to findings from other yanggang studies. Similarly, there were slight but statistically significant differences observed in soluble solids content and pH, though these differences were not found to have a significant impact. The addition of Palatinose did not induce changes in the elasticity (springiness) and firmness (gumminess) of the yanggang, nor in its chewiness, as the Palatinose content increased. Despite a reduction in calorie content, the addition of Palatinose did not influence the appearance and taste of the yanggang.

• Korean Journal of Food Science and Technology
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• v.10 no.2
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• pp.151-156
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• 1978

Ginseng jellies and candies were prepared by adding Ginseng extracts as final concentration of 0.5% and 1% for jellies and 0.7% for candies. Feeding experiments of the diets containing Ginseng extract were carried out for evaluation in respects of growth rate, feed efficiency ratio, organ weight change, hematocrit value, and blood cholesterol content by feeding rats for 6-week. The results of Ginseng supplemented diets were not significantly different from those for the control. Liver, spleen and kidney cells of Ginseng products feeding rats appeared no abnormalities to compare to the control rats.

• The Korean Journal of Food And Nutrition
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• v.22 no.1
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• pp.97-102
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• 2009

In order to obtain a non-toxic and more active and stable microorganism-produced tyrosinase inhibitor, we isolated actinomycetes F-97, a producer of tyrosinase inhibitor, from soil. The aerial hyphae of this strain were gray in color with tree types. Under the microscopic examination, the isolate formed a spiral aerial spore mass with a smooth surface. The analysis of cell wall acid hydrolysate of the isolate revealed the presence of LL-diaminopimelic acid(LL-DAP). No specific sugar was detected. From these results and the cultural and physiological characteristics described in the Bergey's Manual, actinomycetes F-97 was identificated as, or best-matched to, Streptomyces aburaviensis.

• The Korean Journal of Food And Nutrition
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• v.27 no.4
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• pp.588-595
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• 2014

Aloe is an attractive potential food source because it has functional uses. It has been widely used as a well-being food and drink. The antioxidant activity was estimated by measuring DPPH free radical scavenging activity. We investigated the quality characteristics of cookies prepared by adding various concentrations of aloe powder (0%, 1%, 3%, 5%, all w/w) as a substitute for flour. In this study, the DPPH free radical scavenging activity, moisture content, and hardness of cookies significantly increased with increasing aloe powder, while the pH, spread factor and L and b values slightly decreased. Sensory evaluation scores in terms of texture were shown to be very similar statistically, but color, flavor, taste, and overall acceptability scores were lower than the control. As a result of this study, the quality of cookies with the addition of 1% aloe powder were the most suitable in terms of taste, flavor, texture, and sensory properties.