• 한국식품영양학회지
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• 제33권2호
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• pp.159-166
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• 2020

Melon is a fruit consumed and grown globally because of the sweet taste and pleasant aroma. The purpose of this study was to determine the quality characteristics and antioxidant activities of melon jams added with various fruits such as apple, aronia, blueberry, grape, kiwi, passion fruit, and peach. We determined quality characteristics such as pH, total acidity, antioxidant activity, content of total anthocyanin, polyphenol and tannin, respectively. The 100% melon jam as the control was the highest pH and lowest total acidity, whereas mixed jams with melon and passion fruit showed opposite results. The mixed jams with melon and aronia of the total anthocyanin, the polyphenol contents, tannin, and ABTS radical scavenging activities, were markedly higher than those of the control and other samples (p<0.001), followed by the mixed jams with melon and blueberry. In the taste sensing analysis, mixed jams with melon and passion fruit revealed higher richness and lower aftertaste-bitterness and aftertaste-astringency than the commercial strawberry jam and other samples. Thus, jams mixed with various fruits, in particular, aronia, blueberry, and passion fruit were superior to the 100% melon jam in terms of physiological activity and palatability.

• 한국식품조리과학회지
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• 제32권6호
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• pp.800-810
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• 2016

Purpose: This study aimed to characterize the recipes of Hwachae in Korean cookbooks published from the 1600's to 1940's. Methods: We conducted a content analysis of thirteen old cookbooks (Eumsikdimibang, Jubangmun, Jeungbosallimgyeongje, Kyugonyoram, Imwonsibyukji, Gyuhapchongseo, Sieuijeonseo, Buinpilji, Chosunyorijebub, Chosunmusangsinsikyorijebub, Ganpyeonchosunyorijebub, Chosunyori, Chosunyoribub). We collected a total of 99 recipes of Hwachae and analyzed the ingredients used and characteristics of the recipes according to five groups of Hwachae: noodle type Hwachae, dumpling type Hwachae, fruit Hwachae, flower Hwachae, and the others. Results: The noodle type Hwachae included Changmeyon, Smyeon, Nanmyeon, and Waemyeon. Mung bean (81.0%) and Schisandra (95.2%) were mostly employed as solid ingredient and as beverage base, respectively. In the noodle type Hwachae, Wonsobyeong and Sudan belonged to the dumpling type Hwachae, in which mung bean (51.7%) was mostly used as solid ingredient and just water without any additive was used as the most popular beverage base (62.1%) unlike in other types of Hwachae. There were various types of fruit Hwachae, which used different fruits as solid ingredient such as pear, peach, cherry, strawberry, etc. Pears (44.4%) have been employed as the most popular ingredient and sweets such as honey and sugar have been used in all the fruit Hwachae. The flower Hwachae included Hwamyeon, Sunchaehwachae, Jangmihwachae, and Bomhwachae. In all the flower Hwachae, schizandra has been used as a beverage base. Conclusion: These findings provide basic information required for developing standard recipes of traditional Hwachae.

• 한국농림기상학회지
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• 제8권3호
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• pp.169-173
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• 2006

황사가 과수의 착과와 과실품질에 미치는 영향을 분석하기 위하여 황사 발원지에서 채취한 황토(losses)를 이용하였다. 우리나라에서 포집된 황사와 황사발원지에서 채취한 황토의 화학적 특성을 분석한 결과, 우리나라 평균 밭토양보다 알칼리성이 강하고, 유기물 함량이 높았으며 다량의 치환성 양이온 중 Ca의 함량이 높은 수준이었다. 사과, 배, 복숭아 3 과종의 개화기에 황토를 처리한 결과, 과총 착과율과 과실 당 종자수에서 무처리와 차이가 없었으며, 적숙기에 수확한 과실의 과중, 당도, 과형에서도 처리 간에 차이를 나타내지 않았다. 그러나 본 연구에서는 황사 대신 황토를 처리하였고, 개화기에 인위적으로 살포한 것으로서 매우 제한적인 결과이며, 실제 황사의 발생빈도, 지속시간, 밀도 그리고 황사 발생기간의 기상조건에 따라 과수의 결실과 과실특성에 줄 수 있는 영향이 달라질 수 도 있을 것으로 생각된다. 또한 황사 내에 포함된 각종 세균, 곰팡이, 미생물의 영향은 본 실험에서 고려하지 못하였다.

• Fisheries and Aquatic Sciences
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• 제12권1호
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• pp.1-5
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• 2009

Crude saponin, extracted from the starfish Asterias amurensis, was assessed for its capacity as a biological pesticide. As part of this analysis, its insecticidal and repellent activities, in addition to its acute and chronic toxicities were tested. In comparison with the control group, insecticidal activity of saponin against tobacco cutworm, Spodoptera litura, in kale, Brassica loeracea was low at 36.4%. Repellent activities of the extracted saponin against green peach aphid, Myzus persicae, and S. litura, on soybean leaf, Glycine max and kale were 65.6% and 35.0% at $1^{st}$ day, and 54.5% and 30.0% at $3^{rd}$ day, respectively. Acute and chronic toxicity analysis was carried out using acute immobilizatioin test and reproduction impairment test, respectively. The saponin had 48 h-$EC_{50}$ of $65.21{\mu}g/mL$. Twenty-one day accumulative reproduction after treatment was lower in Daphnia magna at $7{\mu}g/mL$ saponin (78 youngs), compared with the control group (129 youngs). These results indicate that the extracted saponin exhibited some toxicity and has potential as a repellent against insects.

• 대한영양사협회학술지
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• 제12권2호
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• pp.118-126
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• 2006

The purpose of this study was to estimate sugar intake and relation between it and blood lipid profiles in Korean adult according to age. The 346 subjects were measured anthropometric assessment, dietary intake using 24-hour recall method, and serum lipid profiles. The average age of the subjects of 20-49, 50-64, over 65 years were 40.8, 57.0, 70.2 years, respectively. The mean height and weight were significantly decreased with increment of age(p<0.001, p<0.01). The mean energy, food, and sugar intakes of the age groups were decreased with increment of age(p<0.05, p<0.001, p<0.001), that is, 1649.8 ㎉/1253.6 g/36.1 g for 20~49 years, 1555.4 ㎉/1157.0 g/31.4 g for 50~64 years, 1404.4 ㎉/893.5 g/17.1 g for over 65 years. The major foods consumed sugar of the age groups were watermelon, sugar, ice cream for 20-49 years, watermelon, sugar, peach for 50-64 years, watermelon, sugar, kimchi for over 65 years. Carbohydrate intake of the subject adjusted age provided significantly negative correlation with serum HDL-cholesterol(p<0.05). However, there was not significant correlation between sugar intake and serum lipid profile. Based on these results, further studies on effects on blood lipid of sugar and carbohydrate intakes were needed for proper carbohydrate intake.

• 대한영양사협회학술지
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• 제12권4호
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• pp.411-431
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• 2006

The purpose of this study was to assess the frequently consumed dish consumption frequencies of continuous ambulatory peritoneal dialysis(CAPD) patients with osteopenia and develop recipes to improve bone mineral density of CAPD. The subjects were 96 CAPD patients with osteopenia(male 39, female 57) (osteopenia group) and 45 CAPD patients with normal BMD(male 24, female 21), matched with key variables(normal group). Fifty dishes(foods) that most frequently consumed were determined and food consumption frequency for each dish(food) for two groups were compared. Osteopenia group showed lower consumption frequency for ice-cream but higher frequency in apple. Of the 50 most frequently consumed dishes(foods), 20 dishes assessed as safe and recommendable for CAPD patients with osteopenia based on the contents of protein and mineral were selected : white boiled rice, white gruel, beef soup, steamed cabbage, roasted dried laver, fried egg, roasted bean-curd, cooked and seasoned bean sprouts, corn-starch jelly, cheese, ice-cream, orange juice, apple, grape, peach, peanut, raw lettuce, raw cucumber, and injulmi rice cake. wenty eight new dishes with modified recipes were developed for CAPD patients. Protein and mineral contents were analyzed for frequently consumed 17 dishes, assessed as modification of recipes are needed. The recipes were modified to decrease P, Na and K contents and to increase protein and Ca contents. Twenty dishes(foods) selected as having reasonable protein and mineral contents ratio or 28 newly developed dishes modified with protein and mineral contents or ratio would be helpful for nutrition education or counseling for CAPD patients with osteopenia. Dishes(foods) suggested in this study would also be useful for all CAPD patients for preventing osteoporosis.

• Journal of Plant Biology
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• 제3권1호
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• pp.32-38
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• 1960

Since the peculiar virus disease of chinese date tree (Zizyphus jujuba Mill. var. inermis Rehd.) has been noted in South Korea around 1950, 70% to 80% of the economically important trees have been either completely destroyed or infected with the virus, severe damage has been noted, particularly, across the area ranged from middle east to the middle part of Korea, including Seoul area. Yoon-Koock-Byung in 1958 first reported the disease and descirbed it might be caused by a kinds of yellows. But he did not conform in his paper that the disease is pecisely caused by yellows virus. The authors, hereby intend to identify the true cause of the desease of the chinese data tree by studying the external symptoms of the disease and the internal morphological characteristics of the diseaset plant which shows various abnormalities in contrast to the healthy checks. In view of fact that leaves of the infected plants become yellowish in color similar to the peach yellows, aster yellows, it is likely to be identifiable as the common yellows. Furthermore, the abnormal characteristics observed by the authors are as follow: The floral organs such as petals, sepals, stamens, and pistil turn into vegetative leaves, the leaves on heavily infected plant appear as small sized one and also showing as a common witch's broom like symptom. There are also an occuring of numerous advantitious shoots developed from both of stems and roots. The amount of photosynthetic starch grains increases in parenchymatous cells, necrosis takes place in mesophyll, Particularly, Palisade Parenchyma in the leaves of infected plants are distinguished in contrast to the healthy checks. From the symptoms and the present experimetns described above, the authors are believed that the disease of chinese data tree is not caused by the yellows. It appears the disease is rather similar to the symptoms of sandal spike virus which was noted in India early in this centry. But the host plant of standal disease, Santalum albun L. and the insect vector, Jassus indicus Wal., have never been reported in Korean flora and the founa. The termperature and the otehr environmental factors is quite different Korea and India. Thus the authors believe that the peculiar disease must be an endemic new virus origin in Korea and must be called as "shoot cluster disease of chinese date tree."

• 한국식품과학회지
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• 제29권3호
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• pp.571-575
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• 1997

본 연구에서는 당근을 원료로 하여 Bifidobacterium을 배양하여 발효하며 Bifidobacterium의 배양특성을 살펴보았다. Bifidobacterium의 다양한 균주를 $10^6\;CFU/mL$ 수준으로 접종하여 배양하였을 때 B. longum, B. adolescentis, B. infantis 균주들은 $10^8\;CFU/mL$ 이상으로 자랐고 B. bifidum 균주들은 약간 성장이 저조하여 $10^8\;CFU/mL$ 이하 수준으로 자랐다. 당근 이외의 다른 원료로서 포도, 사과, 오렌지, 복숭아, 배추, 오이 등에 배양하였을 때 복숭아, 오렌지 등에서는 배양이 양호하였으나 포도에서는 Bifidobacterium의 성장이 일어나지 않았다. L. acidophilus와 혼합 배양시 Bifidobacterium 단독 배양시보다 균의 증식이 저하되었고 배양 24시간 후부터 Bifidobacterium의 사멸이 현저하게 일어났다. Bifidobacterium 배양에 의하여 당근의 산미가 증가되며 관능성이 개선되는 것으로 나타났다. 따라서 Bifidobacterium을 이용한 당근 발효식품 개발은 Bifidobacterium균주의 증식에 의한 기능성 증가와 당근의 관능성 개선에 도움이 될 것으로 생각된다.

• 한국환경과학회지
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• 제26권10호
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• pp.1155-1166
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• 2017

This study selected commonly known species of fruit trees, and re-selected the species that endure the stress of extreme cold weather and physiologically restore themselves to the previous state until the following year. Then we could go ahead to propose the species that were appropriate as urban greening plants in weather condition of any part of the country. To do this, we conducted an experiments for six species of fruit trees based on the preference of the general public and recommendation of the experts; Morus alba (English name: mulberries), Diospyros kaki (English name: Persimmon), Prunus persia (English name: Peach), Elaeagnus umbellata var. coreana (English name: Korean Autumn Olive), Malus domestica 'Alps Otome' (English name: Alps Otome), and Prunus mume (English name: Blue Plum). The experiment verifies whether the trees survive without any stress from the cold weather under the national climate conditions (one in the suburbs of Seoul: Yongin city, one in the central Chungcheong region: Daejeon city, and in the southern Gyeongsang region: Jinju city in Korea). The experiment lasted for a year from August 2016 to August 2017. The levels of electrolytic efflux, chlorophyll content, plant height, fresh weight, and dry weight were measured four times (on August of 2016, January, February, and August of 2017) for each tree planted bare ground outdoors. Results showed that Diospyros kaki, Prunus persia, and Malus domestica 'Alps Otome' were proven durable and resistant to winters of all three areas (one in the suburbs of Seoul: Yongin city, one in the central Chungcheong region: Daejeon city, and in the southern Gyeongsang region: Jinju city in Korea). Especially, the increase of chlorophyll content and the reduction of electrolytic efflux were noticeable in Prunus persia than in the other two species, proving itself as the most cold-tolerant among the six species used in the experiment. In addition, interpreting from the physiological restoration data of one-year span before and after getting through winterer, Prunus persia was proven to be the most cold-tolerant species.

• 정보처리학회논문지D
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• 제18D권5호
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• pp.385-392
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• 2011

최근 농업 분야에 IT를 접목시킨 농업-IT 융합 기술에 대한 연구가 주목 받고 있다. 특히, 공간 데이터 마이닝(spatial data mining, SDM)을 이용한 농작물 관련 예측 서비스들을 통해 자연재해에 대한 피해를 줄이고 농작물의 생산성을 높이고자 하는 연구들이 있어 왔다. 그러나 예측 서비스를 위한 SDM에 필요한 학습 데이터는 분산되어 있는 데이터간의 이질성으로 인해 데이터 변환과 통합과정에 많은 비용과 시간이 발생한다. 또한 공간 데이터와 비공간 데이터 간의 공간적 이웃 관계를 연산하기 위해 대용량의 데이터에 대한 복잡한 연산과정이 필요하다. 본 논문에서는 각각의 데이터 소스를 하나의 서비스 단위로 취급함으로써 분산된 이질적인 데이터를 효과적으로 통합 관리할 수 있고 SDM을 위한 학습 데이터의 생산성을 향상시켜 최적의 예측 서비스의 발견을 지원해 주는 SOA 기반의 데이터 통합 프레임워크를 제안한다. 실험을 통해 경기도 이천시의 복숭아나무의 동해 피해지역에 대한 최적의 예측 서비스의 발견을 위해 제안 프레임워크를 효과적으로 적용할 수 있음을 확인하였다.