• Title/Summary/Keyword: Green perilla

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Leaf and Stem Production of Perilla frutescens by Fertilizing of Sta-Green

  • Choi Seong-Kyu;Yang Deok-Chun
    • Plant Resources
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    • v.8 no.2
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    • pp.167-170
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    • 2005
  • This study was conducted to determine feasibility of production system of Perilla frutescens leaf-stem by fertilizing of Sta-Green in pots. Germination rate of Perilla frutescens seeds collected in 2002 was $7\%$, also germination rate of seeds collected in 2003 was $62\%$, while germination rate of seeds collected in 2004 was above $93\%$. Seed germination rate of Perilla frutescens collected in 2004 were higher than seed gathering in 2002. Especially, plant growth and yield of Perilla frutescens grown in pot(The pots was filled with soil mixtures of Sta-Green and Peat Moss mixed with 40:60 ratio.) was the highest. These results indicate that leaf and stem production of Perilla frutescens can be improved by fertilizing of Sta-Green in pots.

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Development of a Gripper and a Cutter for the Automatic Harvest of Green Perilla Leaves (식용 들깻잎 수확 자동화 시스템의 그리퍼 및 절단 컷터 개발)

  • 송영호;장동일;방승훈;조한성
    • Journal of Biosystems Engineering
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    • v.28 no.6
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    • pp.497-504
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    • 2003
  • The objectives of this study were to develop a harvesting gripper for perilla leaves and test its performance, which was a partial work of the automated perilla leaves harvesting system development. The results of this study could be summarized as the followings: The shear forces for harvesting the perilla were measured. The measured results showed that the average shear force required was 12.13N for cutting the petioles attached to the perilla stalks, and the maximum of 17.42N. The inner diameter of air cylinder used was 6mm and the air pressure was maintained as 0.7㎫ during the tests. The time required for cutting perilla leaves could be adjusted by the control program and cutting operation could be done within 1- 10 seconds. The performance tests were conducted to harvest the perilla leaves by the gripper developed. The average success rates of cutting were 72.2% for the first test, 78.5% for the second, and 74.2% for the last. The perilla leaves were not damaged by the gripper The whole system operation could be finished within three seconds except the delay time for dropping harvested leaves.

Economic Injury Levels and Control Thresholds of pyrausta panopealis Walker (Lepidoptera: Pyralidae) on Perilla under Green-house (시설잎들깨 들깨잎말이명나방(Pyrausta panopealis)의 경제적 피해수준 및 요방제 수준)

  • Choi, Yong-Seok;Park, Deok-Gi;Yun, Yeo-Uk;Hwang, In-Su;Shin, Sun-Mee;Choe, Kwang-Ryul
    • Korean journal of applied entomology
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    • v.47 no.2
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    • pp.149-154
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    • 2008
  • Pyrausta panopealis is the major pest in green perilla. The larva weaves a web on the shoot of green perilla and damages. In case of extreme, The larva cuts the main branch of green perilla and the leaf of green perilla isn't harvested anymore. A field study was conducted to estimate economic injury levels (EILs) and control thresholds (CTs) for P. panopealis injuring green perilla in green-houses. Different densities of P. panopealis ranged from 1 to 20 crops (2 units per crop) per 100 crops on 13. June, early inoculation. The number of injured leaf and the rate of injured crop were increased by 23. June, on the other hand were decreased after that day. Also, the amount of yield sow the same result above. The economic loss time calculated by the ratio of cost managing this moth to market price (C/V) (C: cost managing a moth, V: Market price) was 4.0%. The economic injury level was 5.1 larval per 100 crops. The control thresholds calculated by 80% level of economic injury level was 4.1 larval per 100 crops.

Investigation of Resiudal Organochlorine Pesticides in Green Perilla (Perilla frutescens var. japonica Hara) Greenhouse Soil and Its Leaves (들깨 생산단지 시설재배지 중 잔류성유기염소계 농약류 잔류량 조사)

  • Lim, Sung-Jin;Oh, Young-Tak;Ro, Jin-Ho;Yang, Ji-Yeon;Choi, Geun-Hyoung;Ryu, Song-Hee;Moon, Byeong-Chul;Park, Byung-Jun
    • The Korean Journal of Pesticide Science
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    • v.20 no.3
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    • pp.221-227
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    • 2016
  • This study was conducted to investigate residual organochlorine pesticides in green house soil and green perilla leaves. Extraction and clean-up method were developed using the modified QuEChERS method for residual organochlorine pesticides (ROCPs) in soil and green perilla leaves. Recovery and limit of quantitation (LOQ) of ROCPs in greenhouse soil and green perilla leaves were 76.3-113.4 and 79.4-107.3%, 0.03-0.24 and $0.33-0.50{\mu}g/kg$, respectively. Detected ROCPs in greenhouse soil were dieldrin and endosulfan sulfate, the residue were 1.6-9.2 and $22.0-87.8{\mu}g/kg$, respectively. But two pesticides in all green perilla leaf samples were not detected. These results showed that ROCPs residue in greenhouse soil was lower than the level of bioaccumulation occurring.

Determination of Economic Injury Levels (EILs) and Control Thresholds (CTs) of Aphis egomae (Hom.: Aphididae) in Green Perilla (들깨진딧물의 경제적 피해수준과 요방제수준 설정에 관한 연구)

  • Choi, Yong-Seok;Park, Deok-Gi;Han, Ik-Soo;Choe, Kwang-Ryul
    • Korean journal of applied entomology
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    • v.45 no.3 s.144
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    • pp.317-325
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    • 2006
  • According to the preceding survey on insect pests of the green perilla, Perilla frutescens var. japonica HARA, The major pests were Aphis egomae Shinji, Pyrausta panopealis (Walker), Tetranychus urticae Koch, Polyphagotarsonemus lotus Banks, Tetranychus kanzawai Kishida at Guemsan, Chungnam, 2004. Aphis egomae causes nearly 100% injury of the green perilla in uncontrolled green houses. A field study was conducted to estimate economic injury levels (EILs) and control thresholds (CTs) for A. egomae injuring green perilla in green houses. Different densities of A. egomae ranged from 1 to 80 aphids per 100 plants in early inoculation. The mean injurying rate of plant was 2.4% to 40.5% at the end of June at differently inoculated levels. The economic loss time calculated by the ratio of cost managing aphid to market price (C/V) (C: cost managing aphid, V: Market price) in early season (from May to 13. June) was 5.8% and in peak season (from 13. June to 30. June) was 9.3%. Economic injury level in early and peak season was 5.3 aphids per plant and economic injury levels in peak season were 0.6 aphids per plant and 7.6% injured rate of plant. The control thresholds calculated by 80% level of economic injury level in peak season were 0.5aphids per plant and 6.1% injury rate of plant, respectively.

Beta-carotene and Lutein Contents in Green Leafy Vegetables (녹색잎 채소류의 ${\beta}$-Carotene과 Lutein 함량)

  • Lee, Hwa-Suk;Kim, Young-Nam
    • Journal of the East Asian Society of Dietary Life
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    • v.7 no.2
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    • pp.175-180
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    • 1997
  • Beta-carotene and lutein contents in 7 different green leafy vegetables(perilla leaf, mugwort, chwi, lettuce, spinach, leek, and crown daisy) were analyzed by HPLC. The isocratic separation was performed on a ${\mu}-Bondapak$ $C_{18}$ column with a solvent system of acetonitrile : dichloromethane : methanol = 70:20:10. To check the reliability of the method applied, precision and recovery tests were performed. Perilla leaf showed the highest ${\beta}-carotene$ content(12,570 ${\mu}g$ / 100 g), followed by mugwort and chwi, all of those have ${\le}10,000\{\mu}g\{\beta}-carotene$ per 100 g vegetables. Green lettuce, spinach, leek, crown daisy and reddish brown lettuce contained 9,869, 6,689, 5,664, 3,601 and 3,299 ${\mu}g\{\beta}-carotene/100 g$, respectively, Lutein content was the highest in perilla leaf($13,718{\mu}g/100 g$) followed by chwi($11,989{\mu}g/100 g$), mugwort($11,522{\mu}g/100 g$), green lettuce($10,307{\mu}g/100 g$) and spinach($10,115{\mu}g/100 g$). ${\beta}-carotene$ contents in perilla leaf, mugwort, chwi and green lettuce were 47.8~49.6% of total carotenoids, and ${\beta}-carotene$ contents in the other green leafy vegetables analyzed were 37.7~41.4% Vitamin A contents of green leafy vegetables analyzed by HPLC were 2~6 times higher than the vitamin A values shown in food composition tables except crown daisy.

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Incidence of Polyphagotarsonemus latus (Banks) (Acari: Tarsonemidae) on Green Perilla(Perilla frutescens var. japonica Hara) (잎들깨에서 차먼지응애의 발생특성)

  • Seo, Youn-Kyung;Ann, Seoung-Won;Choi, Yong-Seok
    • Korean journal of applied entomology
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    • v.59 no.2
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    • pp.145-152
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    • 2020
  • The populations of Polyphagostarsonemus latus (Acari: Tarsonemidae) peaked two times on green perilla grown in greenhouses of Geumsan-Gun, Chungchungnamdo. The first peak of P. latus was in the middle of June, after it was first detected in late May. The population of P. latus peaked for the second time in mid July as its density stared rapidly increasing in early July. The application of chemical pesticides and eco-friendly agricultural materials, the two management methods used to control P. latus on green perilla, did not alter the occurrence patterns of P. latus; population size of the mite was much larger in greenhouses using chemical pesticides than in the ones using eco-friendly agricultural materials. This difference might be cuased by continuity of the management methods. Chemical control of P. latus should be limited owing to pesticide residue. The highest density of P. latus on green perilla plants was observed after 25 days after inoculation. The density was the highest in mid-aged leaves (e.g., the largest leaves) and the lowest in newly developed leaves (e.g., smallest leaves). However, there was no significant (P > 0.05) correlation between leaf size and density of P. latus. These results indicate that leaf size (e.g., leaf age) did not affect the occurrence of P. latus. Thus, any leaf of a green perilla plant is available as a sample unit for P. latus.

Analysis of Flavonoids in Raw and Blanching of Several Green-Yellow Vegetables (시판 녹황색 채소류 중의 플라보노이드 함량과 조리과정에 의한 변화)

  • 조정옥;정인창
    • Journal of the East Asian Society of Dietary Life
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    • v.10 no.1
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    • pp.42-47
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    • 2000
  • Flavonoids in commerical green-yellow vegetables (carrot, mugwort, perilla leaf, leek and water dropwort) were analyzed by HPLC. Flavonoids analyzed in samples were myricetin, luteolin , qercetin, apigenin and kaempferol. When 2N HCI and a reaction period of 1 hours was used, quercetin and kaempferol could be detected in leek and water dropwort, luteolin and apigenin could be detected in perilla leaf. Increasing reaction period up to 6 hours with 2N HCI led a degradation of quercetin and kaempferol to approximately 90% in leek and water dropwort, but it led to a increasing of luteolin and apigenin of maximum 300% in perilla leaf. After the blanching process, the amount of the flavonoids increased whereas the components of the flavonoids were not changed.

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Study on the effect of glucose upon the digestibility in the perilla frutescens leave (들깨엽(葉) 단백질(蛋白質)의 소화(消化)에 있어서 glucose의 영향(影響)에 관(關)한 연구(硏究))

  • Kim, Hong-Sub
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.4 no.1
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    • pp.31-34
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    • 1975
  • The testing materials which kept perilla frutescens' leaves frezen are divided into four parts, 1. freezing green leaves, 2. glucose added to the leaves dried in the sun, 3. glucose unadded to the leaves dried in the sun and 4. the leaves dried in the immediately after collecting sample. The perilla frutescens' leaves are treated with the artificial digestion test to investigate the effects of the digestibility of ingredients and of protein. The results obtained were as follows ; 1. The digestibility of crude protein of sample using the common leaves dried in the sun immediately after collecting sample was presented highest at 83.15%, the freezing green leaves at 68.35%, glucose added to the leaves dried in the sun at 64.25% and glucose unadded to the leaves dried in the sun at 62.12%. The digestibility of perilla frutescens' by freezing green leaves, glucose added or glucose unadded to the leaves dried in the sun is on the decrease without difference. 2. It was suggested that glucose and reductive sugars to perilla frutescens' leaves is not affected by the decreased digestibility of protein, dince the digestibility of glucose added to the leaves dried in the sun and glucose unadded to the leaves dried in the sun almost never makes a difference. 3. The digestibility of freezing the green leaves for six months was quite different from the leaves that were dried in the sun immediately after collecting sample, in that the leaves that were frozen for six months were decreased 1/5 quantity of the shole crude protein.

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Effect of Companion Planting with Aromatic Plants on the Growth and Pest Control of Lettuce(Lactuca sativa) in Rooftop Urban Agriculture (옥상 도시농업에서 방향식물과의 공영식재에 따른 상추의 생육 및 해충방제 효과)

  • Han Gil Kim;Sun Yeong Lee;Yong Han Yoon;Jin Hee Ju
    • Journal of Environmental Science International
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    • v.33 no.1
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    • pp.59-65
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    • 2024
  • The objective of this study were to assess rooftop urban agriculture and analyze the differences in soil, growth, physiology, and productivity to elucidate the effect of companion planting with various plants, including lettuce (Lactuca sativa), rosemary (Salvia rosmarinus), marigold (Tagetes patula), Korean perilla (Perilla frutescens), and garlic chives (Allium senescens). Measurements were taken every other week from May to August 2023, totaling eight measurement. Regarding the characteristics of the soil planted with lettuce and aromatic plants, the combined planting of lettuce and garlic chives created a favorable soil environment for plant growth. Consequently, the best growth was observed when lettuce and garlic chives were companion planted. Companion planting of lettuce and garlic chives appears to be the most efficient concerning growth and physiology. The productivity of companion planting lettuce and aromatic plants also showed high-quality lettuce when lettuces and garlic chives were companion planted. Therefore, companion planting of lettuces and garlic chives in rooftop urban agriculture is suitable for growth, physiology, and productivity.