• Journal of agriculture & life science
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• v.46 no.2
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• pp.139-149
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• 2012

Black garlic and Gaeddongssuk (Artemisia annua L.) were extracted using central composite design by response surface methodology (RSM) in 11 conditions (A~K) with $110{\sim}130^{\circ}C$ and 2~4 hr, and then each extracts were monitored for the total phenol, flavonoid contents and antioxidant activities. The optimum extraction conditions for black garlic and Gaeddongssuk are selected 3 conditions ($130^{\circ}C$, 4 hr; $120^{\circ}C$, 3 hr; $130^{\circ}C$, 3 hr) and 1 condition ($120^{\circ}C$, 3 hr), respectively. They were mixed according to the following ratio; 1:0.5, 1:1, 1:1.5 and 1:2 (black garlic: Gaeddongssuk extract, w/w), and then these composites were tested to the total phenol, flavonoid contents and antioxidant activities. Antioxidant activities of black garlic and Gaeddongssuk extracts by $120^{\circ}C$, 3 hr condition were higher. And the optimal mixture ratio of black garlic and Gaeddongssuk was 1:1.5 (w/w).

• The Korean Journal of Food And Nutrition
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• v.28 no.5
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• pp.835-848
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• 2015

In the past, Korea had many kinds of jeupjang (succulent jang), a rapidly maturing original Korean jang (fermented soybean paste) of which there is no record in Chinese cookbooks. However, this local delicacy has almost been forgotten. Therefore, we looked for information about jeupjang in cookbooks written prior to the Joseon Dynasty in Korea (1392~1910) and in the 1950s. Among the recipes, there were 34 jeupjangs prepared with vegetables, such as eggplant and cucumber, and 9 without. The main ingredients of jeupjang are soybean, bran (wheat crust), and barley, and wild wheat is also used. Jeupjang is made in small portions to expedite its rapid maturation, but the most common form is egg-shaped, and there is also a flat or round, hilt-shaped version. In most cases, jeupjang consists of a mixture of meju powder (moldy soybean), water, and salt. Other ingredients can include nuruk (moldy bran), bran, wheat flour, an alcoholic beverage, maljang (dried fermented soybeans), ganjang (liquid soy sauce), malt, and takju (Korean murky wine). Jeupjang meju can be fermented in a vessel, most widely in baskets made of straw (sum and dungumi) or willow or interwoven twigs (chirung), but jars can also be used. The leaves of the paper mulberry are generally used for the mat and cover, but straw or leaves of the sumac, mulberry, or pine tree, soy, and fallen leaves are also used. Unlike other jangs, jeupjang is matured at $60^{\circ}C$ to $65^{\circ}C$, using heat emitted from the decomposition of horse dung, haystacks, or manure. Jeupjang became defunct or was transformed into jeomjang, jiraejang, mujang, paggeumjang, makjang, jipjang, and tojang. These jangs differ from jeupjang in that they use rice, malt, or hot pepper powder.

• Food Science of Animal Resources
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• v.26 no.2
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• pp.175-182
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• 2006

Diets consist of two different pork samples: pork of a Jeju native pig ( 260 days old, $101{\sim}103kg$ ) not fed tangerine byproduct during finishing period ($T_0$), and pork fed 8% and 15% tangerine byproduct during growing and finishing period ($T_1$), respectively. The effects of the diet on the physiological activities of rats were studied by feeding 17-week old rats with the two diets for 4 weeks. There was no significant difference between $T_0$ and $T_1$ in the rat's feed intake, feed efficiency ratio, and weight gain. Furthermore, there was no significant difference between $T_0$ and $T_1$ in the rat's weight of liver, kidney, spleen, epididymal fat pad, triglyceride and cholesterol of liver. Both $T_0$ and $T_1$ showed similar trends in terms of total lipid, phospholipid, triglyceride, total cholesterol, atherogenic index, protein, glucose, hemoglobin level, mineral level, and ${\gamma}$-GTP, ALT, AST and ALP activities. However, $T_1$ showed the trend of increasing amount of the serum's HDL and LDL cholesterol level, compared with $T_0$.

• Journal of the Korean Society of Food Science and Nutrition
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• v.19 no.6
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• pp.617-624
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• 1990

Proper processing condition of Yukwa(oil popped rice snack) for mass production and pop-ping mechanism of it were tested with Shinsun (waxy, Japonica type rice) which was excellent for Yukwa making. Optimum steaming time of dough was 15 min among 4 to 60 min and reasonable moisture content of the dough before steaming was 4895 among 48 to 53% which had good and fine texture. Acceptable stirring time of steamed dough was not significantly different among 1 to 4 min, but no stirring with much larger volume was shown very poor and too soft in texture. At the simplification test of milling method, wet milling was better then dry milling in expansion rate and high temperature treatment of dough at 6$0^{\circ}C$ gave negative effect on their quality. Extending high temperature treatment of dough, reducing sugars in the dough increased and it might be caused of starch degradation. In addition of some other protein sources to dough, Yukwa quality were in proportion to the protein content of the beans. At the long term storage of the Yukwa base, moisture absorption was different depending upon RH of atmosphere and the quality of Yukwa was inferior by storage time. By addition of some alcoholic beverage, such as Makkoli, Soju and Chungju, expansion rate and their texture were somewhat improved by increasing addition amount of them from 15% to. 30％ on dough (w/w).

• Journal of Korean Public Health Nursing
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• v.14 no.2
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• pp.415-430
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• 2000

From March 10 to April 3, 1999. questionnaires were sent to 157 students at an university located in Hongsong. South Choongchung Province in order to find out their eating habits and exercise patterns. The analysis of the questionnaires collected reveals the followings. 1. Eating Habits 1) 76 out of total 157 respondents (48.4%) said that they skipped breakfast. The significant difference was shown in the frequency of breakfast eating based on respondents' sex. Male students had higher rate of going without breakfast (73.92%) than their female counterparts (28.41%). 2) Most respondents finished eating their meals within 20 minutes. with 58.5% spending 10 to 20 minutes. followed by 28.0% taking less than 10 minutes. 3) With respect to the frequency of eating snacks. 1 to 2 times per day came on top with 63.7%. Significant difference was shown based on sex. with male students having more frequent snacks than female students. 40.1% of those surveyed said they ate snacks because they were either bored or hungry, respectively, 67.5% took snacks after school followed by 23.6% who had snacks after dinner. 4) Concerning the frequency of taking food. 1 to 2 times per week recorded the highest mark for beta-carotine. fruits. fish. beans. milk. seaweeds and fries. As for vegetables. 6 to 7 times a week received the highest points. Males showed significantly higher frequency of taking fruits than females. while the opposite was true for beans. 5) More than 50% of the respondents chose rice and fruits as the food they could eat really well. All those surveyed ate fruits and vegetables. More than 10% of students said they did not eat donut. chocolate. candies. fries. coke and clear carbonated beverage. milk. ham and sausage. The food that revealed significant difference based on sex included ramyon, coke and clear carbonated beverages, ham and sausage, yogurt and milk, with males showing greater preference than their female counterparts. 6) The most preferred by respondents was spicy taste (49.04%), followed by sour (36.31%), sweet (25.48%), and salty tastes(21.1%). Those surveyed shunned sweet taste the most (21.02%), followed by sour (14.65%), spicy (8.92%), salty (5.10%) tastes. 2. Workout Patterns 1) 14.01% of the respondents said they took exercise. Based on sex, males showed significantly higher rate of 21.74% than 7.95% of females. Those who took exercise did so mostly three times a week. With regard to the time spent on workout. 'within 2 hours' received the highest points. Soccer was found to be the most popular sport among the respondents. The above analysis demonstrated that the students surveyed selected relatively sound answers in the categories of the food preference and taste. However. some skipped breakfast and liked eating snacks. and most did not take exercise, which may raise health problems including the weight increase. Therefore, ways should be devised to tackle such problems to ensure healthy lives.

• Journal of Korean Home Economics Education Association
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• v.30 no.4
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• pp.83-91
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• 2018

This study was performed to measure the liquid intake and the liquid intake difference by obesity, exercise frequency, and salty food intake score in female high school students. A total of 235 students in Daejeon area were participated, and the liquid intake was recorded for 3-days(2 weekdays and 1 weekend) by self-recording. The T-test, F-test, Pearson's correlation, and Scheffe test were exercised. The results of this study are as follows. The amount of total liquid intake was 838.5 ㎖/d. Among the 13 kinds of beverages, water was the highest 611.6 ㎖/d, 72.9% of liquid intake total, followed by carbonated drink(65.7 ㎖/d), milk(41.6 ㎖/d), fruit drink(32.8 ㎖/d), and fruit·vegetable juice(25.4 ㎖/d). The other beverages' intake were very small, ≤13.0 ㎖/d. Carbonated drink, milk, and coffee's intake were higher during weekend than weekday. There were sig. difference in water and total liquid intake by the obesity, student of BMI≥23.0 was higher than students of BMI<23.0. And only carbonated drink was sig. different by exercise frequency and salty food intake score. Exercise frequency of ≥3 d/week and salty food intake score of ≥7(very dangerous) consumed more carbonated drink than the lower counterparts. Total liquid intake of female high school students was not reach to 900 ㎖/d, the Adequate Intake in Dietary Reference Intake for Koreans 2015. The amount of milk intake was 41.6 ㎖/d, far less than the Recommended Intake of 2 serving, 400 ㎖/d. Education and promotion program may necessary to increase the liquid intake amount and to choose the nutritious beverage.

• Journal of Life Science
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• v.20 no.1
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• pp.82-89
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• 2010

This study was investigated to analyze the contents of flavonoid compounds and the effects of fermentation on the physiological activities of medical plants, also known as SanYa (SY). Antioxidative activity of the fermented SanYa (FSY) was measured by using DPPH radical scavenging and SOD-like activity. DPPH radical scavenging and SOD-like activity of FSY were 94.3% and 45.0%, respectively. Nitric oxide (NO) synthesis was increased 11 times through the addition of FSY. However, NO production of the macrophages RAW264.7 cells stimulated with lipopolysaccharide (LPS) was reduced to 56% through the addition of FSY. FSY showed fibrinolytic activity and indicated about 69.8% and 73.7% of xanthine oxidase and angiotensin converting enzyme inhibitory activities, respectively. These results suggested that FSY plays a significant role in fibrinolytic activity and have strong xanthine oxidase and angiotensin converting enzyme inhibitory activities.

• Journal of the Korean Society of Food Science and Nutrition
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• v.36 no.2
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• pp.228-232
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• 2007

The purpose of the study was to investigate the quality characteristics of Jeju island's indigenous pork fed with citrus byproducts. Samples were the Jeju island's indigenous pork loin without citrus byproduct (JNP-0) and the Jeju island's indigenous pork loin fed with 8% and 15% citrus byproducts during growing and fattening periods (JNP-1). The pH, VBN content, bacterial counts, L* value, frozen loss, thawing loss, water boiling loss, hardness, springiness, cohesiveness, chewiness, and shear force value were not significantly different between JNP-0 and JNP-1 (p<0.05). The TBARS, a* value, b* value, water holding capacity, and pan boiling loss of JNP-0 were significantly higher than those of JNP-1 (p<0.05), but the gumminess of JNP-1 was significantly higher than that of JNP-0 (p<0.05). For sensory characteristics, taste, flavor, juiciness, and palatability were not significantly different between JNP-0 and JNP-1, but tenderness of JNP-1 was sig-nificantly higher than that of JNP-0 (p<0.05).

• Journal of the Korean Society of Food Science and Nutrition
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• v.32 no.6
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• pp.887-892
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• 2003

The effects of liquid culture of Agaricus blazei Murill on the body weight gain, lipid metabolism, protein levels, and enzyme activities were studied in growing male rats. Sprague-Dawley rats were divided into three groups ; control group (A. blazei free water), 20 or 30% A. blazei groups (20 or 30% A. blazei in water) according to the levels of A. blazei supplementation. The rats were fed ad libitum each of the experimental beverage for 5 weeks. The body weight gain, food intake, food efficiency ratio, and organ weight of the 20 or 30% A. blazei groups were similar to those of the control group. There were no differences in the concentrations of triglyceride, total cholesterol, HDL-cholesterol, total protein and albumin, and the activities of GOT, GPT, LDH and alkaline phosphatase of the serum among the experimental groups. The calcium and phosphorus concentrations of serum in the 20 or 30% A. blazei group were significantly decreased compared with those of the control group. The concentrations of LDL-cholesterol and the atherogenic index of the 20 or 30% A. blazei groups were significantly lower than those of the control group, but the serum HDL-cholesterol/total cholesterol ratio was higher. These results showed that the 20 or 30% A. blazei feeding decreased the LDL-cholesterol and the atherogenic index, and increased HDL-cholesterol/total cholesterol ratio in serum of rats.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.35 no.3
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• pp.259-264
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• 2002

In order to develope nutritional and flavoring intermediate products, the optimal processing conditions for two stage enzyme hydrolysate (TSEH) from low-utilized conger eel scrap such as head and intestine were investigated. The optimal processing conditions for TSEH were revealed in temperature at $55^{\circ}C$ 3$\~$4 hours digestion with alcalase at the 1st stage, and 4 hours at $45{\~}50^{\circ}C$ digestion with neutrase at the 2nd stage. Among water extract, steam extract and enzyme hydrolysates of conger eel scrap, the present TSEH was superior to other extracts in terms of yield ana organoleptic taste such as harmonic umami and inhibition of fishy and greasy taste formation. From the results of chemical experiments and sensory evaluation, we may conclude that TSEH of conger eel scrap could be utilized as the flavoring intermediate materials for the fisheries products such as flavoring sauces, drinkable beverage and instant food materials.