• 제목/요약/키워드: Perilla leaf & lettuce

검색결과 47건 처리시간 0.022초

형태적 특성이 다른 들깻잎, 상추, 케일 중 농약 잔류량 비교 (Comparison of Pesticide Residues in Perilla Leaf, Lettuce and Kale by Morphological Characteristics of Plant)

  • 손경애;임건재;홍수명;김진배;임양빈;고현석;김장억
    • 농약과학회지
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    • 제16권4호
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    • pp.336-342
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    • 2012
  • 본 실험은 엽채류 중 들깻잎, 상추, 케일에 살포된 농약의 잔류량을 비교하기 위해 수행하였다. 농약 9종을 대상으로 2구 선형노즐을 부착한 배부식 동력분무기로 7일 간격 2회 살포 후 0, 2, 5일의 잔류양상을 조사하였다. 무게 대비 엽면적 비율($cm^2/g$)은 들깻잎 58, 상추 27, 케일 23 으로 나타나 들깻잎이 상추 보다 2.1배 높았다. 살포 직후 잔류량은 들깻잎이 상추 보다 1.3~2.3배 높게 나타났으며 케일은 상추보다 2.4~7.3배 높았다. 살포 후 5일에는 들깻잎이 상추 보다 1.3~3.3배 많았으며 상추는 케일보다 5.6~28.1배 높았다. 케일의 잔류량이 적은 것은 잎 표면이 매끄러워 살포된 농약입자가 쉽게 흘러내리는 것이 원인으로 보인다. 상추와 들깻잎의 잔류량 차이는 무게 대비 엽면적 비율의 차이에 따른 영향이 크다고 판단되었다.

Antioxidant Activity of Salad Vegetables Grown in Korea

  • Xin Zao;Song, Kyung-Bin;Kim, Mee-Ree
    • Preventive Nutrition and Food Science
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    • 제9권4호
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    • pp.289-294
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    • 2004
  • The antioxidant activity of forty two kinds of salad vegetables grown in Korea was evaluated. Methanol extract of freeze-dried vegetable was assayed by radical scavenging activity using 1,2-diphenyl-2-picrylhydrazyl (DPPH) and Fe^{2+}$-catalyzed lipid peroxidation inhibition by TBA method. Total phenolics were determined colorimetrically using Folin-Ciocalteu reagent. The highest radical scavenging activity was expressed by perilla leaf, followed by dandelion leaf, red and green leafy lettuce, of which $IC_{50}$ was less than 0.10 mg/mL. Angelica leaf showed the highest inhibitory action for lipid peroxidation with $95\%$, and then dandelion leaf, water spinach, and perilla leaf inhibited over $80\%$. However, lettuce (Iceberg) and young Chinese cabbage exhibited the lowest antioxidant activity based on both assay methods. Highly positive correlations between antioxidative activities and total phenolics were observed (p < 0.001). The results suggested that salad vegetables, especially perilla leaf, leafy lettuce, dandelion or angelica, could be used for easily accessible sources of natural antioxidants.

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

  • 이화숙;김영남
    • 동아시아식생활학회지
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    • 제7권2호
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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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가락동 농수산물도매시장 반입 들깻잎과 상추의 잔류농약 실태 및 안전성 평가 (Pesticide Residues Survey and Safety Evaluation for Perilla Leaf & Lettuce on the Garak-dong Agricultural & Marine Products Market)

  • 박원희;황인숙;김은정;조태희;홍채규;이재인;최수정;김진아;이윤정;김미선;김지혜;김무상
    • 농약과학회지
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    • 제19권3호
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    • pp.151-160
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    • 2015
  • 2010년부터 2012년까지 서울 가락동 농수산물도매시장에서 경매되는 채소류 중 들깻잎 4,063건 상추 2,248건을 대상으로 잔류농약 검사를 실시하였다. 들깻잎은 812건에서 농약이 검출되었고 40건이 부적합판정을 받았다. 상추의 경우 108건에서 농약이 검출되었고 잔류허용기준을 초과한 상품은 10건이었다. 검출된 농약은 들깻잎 61종, 상추는 28종이었다. 들깻잎 및 상추 섭취에 따른 다종농약 성분에 대한 안전성 평가는 들깻잎이 0.05% 이하, 상추가 0,1% 이하로서 인체에 대한 위해성은 낮은 것으로 평가되었다.

유기농 엽경채류의 품질 특성 및 항산화 활성 (Quality Characteristics and Antioxidant Activities of the Organic Leaf and Stem Vegetables)

  • 장민선;김건희
    • 동아시아식생활학회지
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    • 제26권3호
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    • pp.201-206
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    • 2016
  • 유기 및 관행재배에 따른 엽경채류의 이화학적 품질 및 항산화 활성을 비교하고자 깻잎, 상추, 브로콜리 및 양배추 등을 이용하여 무게, 길이, 수분, 표면색, DPPH 및 ABTS radical 소거능을 분석하였다. 무게, 길이의 경우, 전반적으로 관행재배한 엽경채류의 값이 높았으며, 수분함량의 경우 유기 및 관행재배 간 비슷한 값을 나타내었고, 재배조건에 따른 유의적 차이는 없었다. 표면색에 있어서 깻잎과 상추의 a 값을 제외한 모든 시료에서 유기 및 관행재배 간 L, a, b 값의 유의적인 차이를 보였다. 항산화 활성의 경우, 전반적으로 유기재배한 시료의 DPPH 및 ABTS radical 소거능이 관행재배한 시료보다 우수하였으며, 양배추의 경우 두 가지 항산화 활성에서 유의적 차이를 보이지 않았다. 본 연구에서는 무게, 길이 등의 외적 품질에 대해서 관행재배한 엽경채류의 값이 높았고, 항산화 활성에 대해서는 유기재배한 엽경채류의 값이 높았으나, 유기 및 관행재배에 따른 내외적 품질비교를 위해서 더 많은 분석이 추가로 진행되어야 할 필요가 있다고 사료된다.

Effect of seawater on growth of four vegetable crops - Lettuce, leaf perilla, red pepper, cucumber -

  • Lee, Sang-Beom;Lee, M.H.;Lee, B.M.;Nam, H.S.;Kang, C.K.
    • 한국유기농업학회지
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    • 제19권spc호
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    • pp.222-224
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    • 2011
  • The effects of seawater on growth of lettuce(Lactuca sativa L.), leaf perilla(Perilla frutescens var. japonica Hara), red pepper(Capsicum annuum L.) and cucumber(Cucumis sativus L.) seedlings were investigated in the glass greenhouse. These effects were studied on seedlings, and diluted seawater (1%, 5%, 10%, 20%, 50%, 100% v/v) was sprayed enough on leaves. The tested four vegetable crops have well grown up to 10% diluted seawater, but the tested vegetable crops were damaged from increasing salt levels. Of these, lettuce was provided salt-tolerant vegetable crop and red pepper was considered salt-sensitive vegetable crop. The salt tolerance of vegetable crops is different between crops and complicated because of additional detrimental effects caused by accumulated ions or specific ion toxicities in their leaves. These results show that agricultural use of seawater may be benefit crop cultivation in organic farming system as well as in conventional farming system.

경상도 별미김치의 표준화 연구 (Standardizations of Traditional Special Kimchi in Kyungsang Province)

  • 한지숙
    • 동아시아식생활학회지
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    • 제5권2호
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    • pp.27-38
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    • 1995
  • This study was conducted to standardize ingredient ratio and preparation method of mafor traditional special kimchies in kyungsang province, korea. There were about 35 varieties of special kimchi in Kyungsang province. Six varieties of them such as burdock kimchi, wild leek kimchi, green thread onion kimchi, perilla leaf kimchi, Godulbaegi(Korean wild lettuce) kimchi, and red pepper leaf kimchi were selected, because they tasted good and the physiological functions of their main ingredients were excellent. The ingredient ratios of the selected special kimchi were standardized through surveying hereditary preparation of some families in kyungsang province and using the literatures including cooking books. The standardized ingredient ratio of the burdock kimchi was 15.1 pickled anchovy juice, 6.8 red pepper powder, 5.7 garlic, 2.2 ginger, 18.0 rice flour paste, 13.5 green thread onion, and 1.2 sesame seed in proportion to 100 of burdock. The standardized preparation step of the selected special kimchies was similar except some preprocessing methods of main ingredients. The diagonally cut-up burdock ws usually parboiled or soaked in salted water, then it was mixed with the other ingredients. Wild leek and green thread onion were usually pickled with salt or pickled anchovy juice. Sometimes the green thread onion pickled was dried in the sun. General preprocessing of perilla leaf, Korean wild lettuce, and red pepper leaf was soaking them in salted water for about 5-10 days. Sometimes red pepper leaf was heated with steam and dried in the sun, then it was mixed with the other ingredients.

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엽채류 세척, 살균, 탈수 시스템 개발 (Development of a Washing, Sterilization, Dehydrating System for Leaf Vegetables)

  • 홍성기;박회만;조광환;장동일
    • Journal of Biosystems Engineering
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    • 제32권6호
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    • pp.408-415
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    • 2007
  • Leaf vegetables are composed of about 80% of moisture and 20 to 30% are damaged during the transportation due to decomposition and browning. This study was conducted to develop a washing, sterilization dehydrating system that could remove these polluters, and major findings were summarized as followings. The system was constructed so that leaf vegetables were moved through the washing, sterilization, and dehydration stages contained in a box, the shifting was conducted using PLC-controlled pneumatic pressure. Basic tests for determination of design parameters led to the results that optimum washing times by air bubbles were 5 minutes for lettuce and perilla and 10 minutes for Chinese cabbage, and percentages of bacteria removed using the optimum washing times were 94, 98, and 76%, respectively. Optimum speed and time of a centrifugal dehydrator for removal surface waterdrop on the leaves were 400 rpm and 30 s, respectively, dehydration rates were in a range $70{\sim}82%$ and damage rates were within 15% for the three vegetables tested. Operating efficiencies of the developed system for lettuce, perilla, and Chinese cabbage were 100, 120, and 80 kg/h, respectively, which were 25, 24, and 27 times of operating efficiencies of the conventional manual method.

부산 지역 주부들의 시판 밑반찬 기호도 및 이용 실태 (Housewives' Preference and Consumption of Commercialized Basic Side Dishes in the Busan Area)

  • 류은순;이동선;정순경
    • 동아시아식생활학회지
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    • 제17권3호
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    • pp.312-321
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    • 2007
  • The purpose of this study was to investigate the preferences, consumption, and eating frequencies of housewives for commercialized traditional basic side dishes. The investigators visited 18 food markets and questionnaires were distributed to 464 housewives in the Busan area. The number of basic side dishes being sold at the markets were in the order of seasoned dried radish (17 markets; mk), salted garlic stalk (15 mk), braised black soy beans (14 mk), braised peppers and dried anchovies (13 mk), and braised lotus roots (12 mk). The housewives' order of preferences was for stir-fried dried anchovies, braised peppers and dried anchovies, braised seasoned beef, salted perilla leaf, and perilla leaf kimchi equal to seasoned sea lettuce, respectively. The order for eating frequency was stir-fried dried anchovies, braised peppers and dried anchovies, salted perilla leaf, and perilla leaf kimchi, respectively. Salted perilla leaf, perilla leaf kimchi, braised crab preserved in soy sauce, salted bean leaves, seasoned dried radish, and seasoned crab were either occasionally or frequently purchased by over 40% of the women. However, the reasons they did not purchase these products included: the excess use of chemical seasonings, unsanitary, unreliable cooking process, unreliable the origin, and high price, in the respective order. If the commercialized traditional basic side dishes were improved to eliminate these problems, 52.2% of the housewives would buy the products, and 65.6% anticipated increasing their use of these products in the future.

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국내에 시판되고 있는 유기농산물과 일반농산물의 부패미생물 분리 및 동정 (Isolation and Identification of Spoilage Bacteria on Organic and Conventional Fresh Produce in Korea)

  • 정순영;정영;정규석;허성기;이선영
    • 한국식품위생안전성학회지
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    • 제28권4호
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    • pp.306-311
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    • 2013
  • 본 연구는 부패미생물의 종류와 차이를 알아보기 위해 유기농산물과 일반농산물(깻잎, 양배추, 상추)을 구입하여 $4^{\circ}C$에 14일 저장한 후 일반목적배지를 사용하여 미생물을 분리 및 16S rRNA sequencing방법을 이용하여 동정하였다. 유기농산물 깻잎, 양배추, 상추의 총균수는 $5-7{\log}_{10}CFU/g$ 수준이었고, 일반농산물의 총균수는 $5-8{\log}_{10}CFU/g$ 수준이었다. 유기농산물보다는 일반농산물이 총균수를 더 많이 내재하고 있으나 유의적인 차이는 나타나지 않았다(p > 0.05). 유기농산물 깻잎에서 발견된 주요 균은 Microbacterium sp.이었으며, 일반농산물 깻잎에서 발견된 주요균은 Stenotrophomonas maltophilia이었다. 또한, 유기농산물에서 부패를 일으킬 수 있는 균인 Klebsiella pneumonia가 발견되었으며, 일반농산물보다 유기농산물에서 발견된 균의 종류가 더 많은 것을 확인할 수 있었다. 이에 본 연구 결과는 부패미생물에 대한 이해를 높이고 농산물의 신선도 및 유통기한을 늘리기 위한 새로운 살균소독제 및 부패 억제제를 개발하는데 좋은 기초자료로 사용될 수 있을 것으로 사료된다.