• Korean Journal of Agricultural Science
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• v.29 no.1
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• pp.1-7
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• 2002

Postharvest characteristics of 'Pingguoli' fruit produced between China and Korea were compared to find an ecological difference. There was a difference in fresh weight per fruit, thus, fruit weight produced in Korea was much higher than those in China. However, no significant differences were confirmed in the level of soluble solid content and flesh firmness. The acidity of Korean 'Pingguoli' was higher than Chinese ones. The external appearance of Korean 'Pingguoli' was not attractive due to the rough and rugged surface. Thus, the prospect of 'Pingguoli' cultivation in Korea seems not to be promised. The general trend of respiration and ethylene evolution during storage did not significantly differed but the amount of $CO_2$ and ethylene production was higher in fruits produced in China. There was a strong similarity in respiration and ethylene evolution pattern to typical climacteric fruits. Thus, 'Pingguoli' is considered as a climacteric fruit. Even though the rate of ethylene production of 'Pingguoli' was relatively high, the storability of 'Pingguoli' showed a strong potential. The further studies in postharvest physiology of pear using 'Pingguoli' and in its breeding potentials as a source of long storage life are needed.

• Journal of Microbiology and Biotechnology
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• v.18 no.5
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• pp.821-827
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• 2008

The unicellular green alga Dunaliella salina is a halotolerant eukaryotic organism. Its halophytic properties provide an important advantage for open pond mass cultivation, since D. salina can be grown selectively. D. salina was originally described by E. C. Teodoresco in 1905. Since that time, numerous isolates of D. salina have been identified from hypersaline environments on different continents. The new Dunaliella strain used for this study was isolated from the salt farm area of the west coastal side of South Korea. Cells of the new strain were approximately oval- or pear-shaped (approximately $16-24\;{\mu}m$ long and $10-15\;{\mu}m$ wide), and contained one pyrenoid, cytoplasmatic granules, and no visible eyespot. Although levels of $\beta$-carotene per cell were relatively low in cells grown at salinities between 0.5 to 2.5 M NaCl, cells grown at 4.5 M NaCl contained about a ten-fold increase in cellular levels of $\beta$-carotene, which demonstrated that cells of the new Korean strain of Dunaliella can overaccumulate $\beta$-carotene in response to salt stress. Analysis of the ITS1 and ITS2 regions of the new Korean isolate showed that it is in the same clade as D. salina. Consequently, based on comparative cell morphology, biochemistry, and molecular phylogeny, the new Dunaliella isolate from South Korea was classified as D. salina KCTC10654BP.

• Journal of the Korean Society of Food Culture
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• v.10 no.4
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• pp.291-300
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• 1995

The purpose of this paper is to survey various recipes of the roasted beef with twenty three classical cookboods written before 1943. The roasted beefis found total 32 times in the literature which can be classified into seven groups such as the roasted rib, roasted foot, roasted tail, roasted heart, roasted gall, roasted kidney and roasted fresh meat. The most frequent one is the roasted rib appearing eight times and the next is the roasted sliced beef with seasoning appearing seven. This proves that the those recipes have been the most favorite ones to Korean people for a long time. The roasted rib has been found since the middle of the 17th century, but the process of roasting ribs again with seasoning after three successions of dipping shortly into cold water in the midst of roast wasz disappeared. The roasted sliced beef with seasoning originated since the late 18th century, and the roasted beef with salt since the early 19th century which has been inherited as the roasted raw upper part of roasted beef recipes have been continued until today in the similar manner. Generally the roasted meat with bones and the roasted internal organs started in 1766 earlier than the roasted fresh meat by a century. The main ingredients were rib, foot, tail, heart, gall, kidney, fresh meat and knee bone, and the seasonings were mixtures of scallion stalk, garlic, pepper, oil, soy sauce and sesame seed powder. And peculiarly salted shrimp, pear juice, ginger were added to seasonings and pine nut powder was used as decorating ingredient.

• Korean Journal of Agricultural Science
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• v.13 no.2
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• pp.219-226
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• 1986

A study was conducted to provide direct comparisons of the effect of variations in herbage use, grazing and social behaviour upon the flat, slope and forest grassland with a total 30 Korean Native Cattle and 5 Korean Native Goats under 4-year old grassland established by intensive sowing method in Daecheon. The results obtained are summarized as follows; 1. Relative intake index, dry matter intake per animal and dry matter digestibility by Korean Native Goats in flat, slope and forest grassland were 35.2%-462g-63.7%, 35.0%-459g-63.0% and 29.8%-391g-62.1%, respectively. 2. Grazing time by Korean Native Cattle was not different among the grassland types, but ruminating time was increased in slope grassland, whereas in forest grassland was decreased. Resting time was increased in forest grassland, whereas in slope grassland was decreased. Walking time was increased in flat grassland, but loafing time was increased in forest grassland. The number of rumination, chews per bolus and defecation number were decreased in forest grassland. The number of drinks, total drinking water and walking distance were increased in slope grassland. 3. Animal distance, occupied area per animal and sub group formation by Korean Native Cattle in flat, slope and forest grassland were $3.4m-11.9m^2-3.6head$, $3.56m-11.0m^2-3.7head$ and $3.70m-14.6m^2-3.4head$, respectively. The order of grazing movement was similar to the pear-shaped grazing formation, but the relations of dominance between first grazer and last grazer upon different grassland types was not clear.

• Journal of the Korean Society of Clothing and Textiles
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• v.37 no.6
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• pp.799-808
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• 2013

Previous research reported that body size measured as Body Mass Index (BMI) and body shape measured as waist-hip-ratio (WHR) are two essential factors that form the perceptions of body attractiveness. However, the debate on the importance of BMI versus WHR is ongoing. In addition, scholarly articles, that focus on the role of geographic and cultural variability on perceptions of attractiveness, report inconsistent results. Some suggested that according to globalization and the rise of mass media, geographic variability of perceptions of attractiveness have been altered, while others believed that it remains. This study cross-regionally investigates the role of body size and body shape on the perceptions of female attractiveness. Samples were composed of 107 female college students in Alabama and 107 female college students in California. Participants viewed 27 three-dimensional body scan images of women in three body shapes (pear, hourglass, and rectangle) and three body sizes (underweight, normal weight, and overweight) and rated their perceptions of attractiveness. Images were shown to students in a random order with an overhead projector and Microsoft Office PowerPoint software. A three-way mixed-ANOVA was conducted to analyze the data. The results of the study showed that some regional differences exist between the two sample groups. However, regardless of the regional difference, hourglass shapes were perceived to be the most attractive shape and underweight sizes were perceived to be the most attractive size for both samples.

• The Korean Journal of Food And Nutrition
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• v.28 no.5
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• pp.894-909
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• 2015

The purpose of this research aims to reveal how radish kimchi (Jong-ga) differs in Jong-ga recipes and old cookbooks. To accomplish this, old cookbooks ("Soowoonjabbang", "Jusiksiui", "Eumsikbangmunnira", "Siuejunsuh", "Banchandeungsok", and "Buinpilji") were reviewed and 8 Jong-ga recipes (Seogye Park Se-dang from the Bannam Park clan Jong-ga, Myungsukgong from the Changnyeong Jo clan Jong-ga, Nampa Park Jae-gyu from the Milyang Park clan Jong-ga, Geunggudang Kim Joong-jeung from the Gwangsan Kim clan Jong-ga, Dongchundang Song Jun-gil from the Eunjin Song clan Jong-ga, Myeongjae Yun Jung from the Papyung Yun clan Jong-ga, Daeseunggong Ryu Cha-dal from the Munhwa Ryu clan Jong-ga, Inmukjae Son Sung-jeung from the Milseong Son clan Jong-ga) from five areas were reviewed. We classified the radish kimchi into five categories, radish kimchi, Dongchimi, kkakdugi, Seokbakji and Nabak kimchi and other kimchi. According to old cookbooks, most kimchi was made with radish, cabbage, cucumber, pear, yuju, fish meat, and salt. Modern Jong-ga is made of seasoned radish, sticky rice paste, seafood, sugar, powdered pepper, fish sauce and salt. This study helps to understand notable clans' cultures via their recipes for kimchi.

• Korean Journal of Plant Tissue Culture
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• v.22 no.5
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• pp.283-290
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• 1995

This experiment was canted out to obtain embryogenic callus and to understand developmental mechanism of somatic embryogenesis in Oenanthe javanica ($B_{L.}$) DC. experiments included the examination of explant source and media for embryogenic callus production and the observation of developmental pattern of embryogenic cells and non-embryogenic cells. Embryogenic calli were formed on zygotic pro-embryos together with their endosperms when they were cultured on Ms media containing 1.0mg/L 2,4-D. Embryogenic calli were also formed on the intact surface in vitro grown stem or petiole segmentsafrer 6-8 weeks of culture, whereas non-embryogenic calli were formed on cut surfaces of the stem and petiole after 2 weeks of culture. Non-embryogenic calli were rhizogenic in suspension and solid media culture.

• Korean Journal of Weed Science
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• v.2 no.1
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• pp.53-56
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• 1982

In order to establish the chemical weed control systems in orchard, efficacy of glyphosate and paraquat with oxyfluorfen, simazine and alachlor were evaluated in pear and peach orchards. Dominant weed species existed before glyphosate or paraquat application were Artemesia princeps, Calystegia japonica, Erigeron canadensis, and Lepidium apetalum, but Digitaria sanguinalis was one of the most dominant weeds throughout growing season of fruit trees. Gtyphosate at 120g/10a followed by oxyfluorfen at 04g/10a drastically reduced number of weeds and fresh weight of weeds and was found to be the most effective method for controlling weeds in orchard. Paraquat at 100g/10a followed by oxyfluorfen at 117g/10a and sequential application of glyphosate at 120g/10a also provided good weed control.

• Korean Journal of Agricultural and Forest Meteorology
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• v.5 no.1
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• pp.43-47
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• 2003

Air temperature was continuously measured in hilly pear orchards at 4 sites with elevations of 10, 49, 104 and 253 m above sea level. The mean air temperature, averaged over the 10-month period from August 2001 to June 2002, decreased as the site elevation increased by 0.2$^{\circ}C$ per 100 m. This weak lapse condition was amplified during daytime by sun-slope geometry. But on most days an inversion condition began by sunset and persisted until the next sunrise. During the observation period, daily minimum temperature at the valley bottom was lower than that of the hilltop on 67% of the days, and the average temperature difference was 1.4$^{\circ}C$. Inversion of daily minimum temperature under clear sky conditions was stronger in spring and autumn than in winter with a maximum of 6$^{\circ}C$. Lapse condition was predominant in daily minimum temperature on rainy days, and the lapse rate was strongest in winter.

• The Korean Journal of Pesticide Science
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• v.18 no.4
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• pp.336-341
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• 2014

In order to determine the residual characteristics of pesticides in fruits and their effects on human health, monitoring of pesticide residues were conducted in apples, peaches, pears, grapes and citrus from the major cultivation areas in 2010. Safeties of the pesticides detected from the fruits were evaluated using the amounts of pesticide residue detected and dietary risk index (DRI). Samples were taken from 4-5 major fruit cultivation areas and then pesticide residues in the test fruits were analyzed with a liquid chromatographymass spectrometry (LC-MS/MS). Mean residue levels of the pesticides in fruits were 0.001-0.144 mg/kg. The DRIs were 0.55 for apple, 0.066 for peach, 0.008 for pear, 0.025 for grape, and 0.37 for citrus, respectively. The results indicated that the amounts of pesticide residues in domestic fruits might be safe, considering the regulatory concerning level 1.0.