• Title, Summary, Keyword: pesticide residue

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A Monitoring Survey on Pesticide Residues in Strawberries and Cucumbers from plastic Film Houses (시설재배 딸기와 오이 중 농약잔류에 관한 조사 연구)

  • 이해근;김영구;박영선
    • Journal of Food Hygiene and Safety
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    • v.3 no.4
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    • pp.193-202
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    • 1988
  • A pesticide monitoring study was undertaken for the strawberry and cucumber samples collected from plastic film houses and additional strawberries from supermarkets located in Seoul city in 1983 to evaluate pesticide residues in these food commodities and also to give basic informations in establishing maximum residue limits. Organophosphorus insecticides were not detected in any cucumber samples except that diazinon found with low residue levels in two strawberry samples. Fungicide procymidone and chlorothalonil were detected with considerable high frequencies in these vegetables while their residue levels were fairly low. Even the maximum residue levels. they were much lower than maximum residue limits established in these vegetables in Environment Administration. Korea. Of the strawberries from supermarkets in Seoul city, procymidone, chlorthalonil and dichlofluanid fungicides were also detected with similar detection frequencies and residue levels to those from the plas tic film houses. By washing the strawberries with tap water, the residues were removed from 38% to 95% of the total residues. Presently, it is considered that pesticide residues in strawberry and cucumber may be no harmfullevels for food commodities.

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Microbial Floral Dynamics of Chinese Traditional Soybean Paste (Doujiang) and Commercial Soybean Paste

  • Gao, Xiuzhi;Liu, Hui;Yi, Xinxin;Liu, Yiqian;Wang, Xiaodong;Xu, Wensheng;Tong, Qigen;Cui, Zongjun
    • Journal of Microbiology and Biotechnology
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    • v.23 no.12
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    • pp.1717-1725
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    • 2013
  • Traditional soybean paste from Shandong Liangshan and Tianyuan Jiangyuan commercial soybean paste were chosen for analysis and comparison of their bacterial and fungal dynamics using denaturing gel gradient electrophoresis and 16S rRNA gene clone libraries. The bacterial diversity results showed that more than 20 types of bacteria were present in traditional Shandong soybean paste during its fermentation process, whereas only six types of bacteria were present in the commercial soybean paste. The predominant bacteria in the Shandong soybean paste were most closely related to Leuconostoc spp., an uncultured bacterium, Lactococcus lactis, Bacillus licheniformis, Bacillus spp., and Citrobacter freundii. The predominant bacteria in the Tianyuan Jiangyuan soybean paste were most closely related to an uncultured bacterium, Bacillus licheniformis, and an uncultured Leuconostoc spp. The fungal diversity results showed that 10 types of fungi were present in the Shandong soybean paste during the fermentation process, with the predominant fungi being most closely related to Geotrichum spp., an uncultured fungal clone, Aspergillus oryzae, and yeast species. The predominant fungus in the commercial soybean paste was Aspergillus oryzae.

A Study on the Analysis of Pesticide Residue in Banana by GC/MSD (GC/MSD를 이용한 바나나 중에서의 잔류농약 분석법에 관한 연구)

  • 박성수;김동원
    • The Korean Journal of Food And Nutrition
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    • v.9 no.2
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    • pp.217-222
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    • 1996
  • We studied about analyzing carbamate pesticides, organochlorine, organophosphorus pesticides simultaneously using by GC/MSD. For this, instead of HPLC which is generally used in analyzing carbamate pesticides, GC was used and all hydrogen of -NH group in carbamate pesticides were substituted for trifluoroacetyl group which is stable at heat And eight pesticide resdidues were not detected in nine samples circulated in the city.

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Monitoring and Risk Assessment of Pesticide Residues in Commercial Environment Friendly Fruits and Fruiting Vegetables (유통 친환경 과실류와 과채류 중 농약잔류 실태조사 및 안전성 평가)

  • Lee, Jae Yun;Noh, Hyun Ho;Park, So Hyun;Lee, Kwang Hun;Park, Hyo Kyoung;Hong, Su Myeong;Kim, Doo Ho;Kyung, Kee Sung
    • The Korean Journal of Pesticide Science
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    • v.16 no.4
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    • pp.308-314
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    • 2012
  • In order to monitor the residual pesticides in environment friendly agricultural commodities, fruits and fruiting vegetables. Twenty-five agricultural commodities were collected twice in May and August 2011 from nine environment friendly agricultural commodities-selling supermarkets and retail stores located in eight major cities in Korea. The number of each agricultural commodity collected, 555 samples in total, was 152 organic agricultural products, 202 pesticide-free agricultural products and 201 low-pesticide agricultural products. Pesticide residues in samples were analyzed by multiresidue method for 245 pesticides using a GC-ECD/NPD and an HPLC-DAD/FLD and the peaks suspected as pesticides were identified with a GC/MSD. As a result of pesticide residue analysis, three pesticides, bifenthrin, EPN and chlorpyrifos, were detected from four samples including apple, representing a detection rate of 0.72%. The residue levels of the four pesticide-detected samples were less than their maximum residue limits (MRLs) but one pesticide EPN detected from pear exceeded its legible criterion of one twentieth MRL. Estimated daily intakes of the pesticides detected from fruits and fruiting vegetables were less than 0.76% of their maximum permissible intake.

Revision in the Codex Classification of Foods and Animal Feeds (2013)

  • Lee, Mi-Gyung
    • The Korean Journal of Pesticide Science
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    • v.18 no.1
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    • pp.48-51
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    • 2014
  • Since the year of 2006 when the extended revision of the Codex Classification of Foods and Animal Feeds was undertaken, considerable progresses have been made in revising the Classification. This paper aimed to summarize the present status on revision of the Codex Classification of Foods and Animal Feeds, focusing remarkable achievements such as 1) the draft revision of the Codex Classification for the fruit commodity group and 2) the draft Principles and Guidance on the Selection of Representative Commodities for the Extrapolation of Maximum Residue Limits for Pesticides to Commodity Groups, adopted by the Codex Alimentarius Commission in 2012. Additionally, it included information on lists of crop group or subgroup which are holding at Step 7 and were adopted at Step 5, and further have not been yet discussed by the Codex Committee on Pesticide Residues. These information will be very helpful for a pesticide regulatory regime.

Estimate of pesticide residues in tomato varieties using ratio of surface area to weight (비표면적을 이용한 토마토의 과종별 농약 잔류량 예측)

  • Kwon, Hye-Young;Kim, Jin-Bae;Lee, Hee-Dong;Ihm, Yang-Bin;Kyung, Kee-Sung;Park, In-Hee;Choi, Jung
    • The Korean Journal of Pesticide Science
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    • v.8 no.1
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    • pp.30-37
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    • 2004
  • This study estimated the correlation between surface area/weight ratios and pesticide residues in two varieties of tomato, mini tomato and tomato. The ratios of surface area/weight of mini tomato and tomato were $2.15cm^2g^{-1}$ and $1.00cm^2g^{-1}$ respectively. Pesticide residues were measured with four kinds of pesticide, chlorothalonil WP, chlorothalonil SC, oxadixyl WP, thiophanate-methyl WP. Ie residue amount of mini tomato was $1.4\sim2.4$ times higher than those in tomato regardless of the application date and frequency. The ratios of surface area/weight on tomato varieties played a key role for determining pesticide residue.

Effect of field location and spray device on pesticide residue in chilli peppers (농약 살포조건이 고추열매 중 잔류에 미치는 영향)

  • Son, Kyeong-Ae;Kang, Tae-Kyeong;Park, Byeong-Jun;Kim, Taek-Kyum;Gil, Geun-Hwan;Kim, Chan-Sub;Kim, Jin-Bae;Im, Geon-Jae;Lee, Key-Woon
    • The Korean Journal of Pesticide Science
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    • v.16 no.3
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    • pp.230-235
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    • 2012
  • This study was carried out to clarify effects of field location and sprayer on the level of pesticide residue in chilli peppers. As confirmed by statistical analysis, the residue levels in green pepper among three greenhouses did not show significant difference at the first day after spraying with the same engine sprayer and nozzle. But the residue levels in green peppers collected from the exposed outside of crop were 2 times higher than those from the hidden inside. The sampling site was one of variation elements of pesticide residue. The residue levels after application by knapsack engine powered sprayer were 1.7 times higher than those by manual compressed sprayer. As the spraying pressure of the engine power sprayer is 2 times higher than the commonly used pressure of the manual compressed sprayer, the pressure of the sprayer and nozzles were considered to affect on the residue levels in peppers.

Recent Trend of Residual Pesticides in Korean Feed

  • Jeong, Jin Young;Kim, Minseok;Baek, Youl-Chang;Song, Jaeyong;Lee, Seul;Kim, Ki Hyun;Ji, Sang Yun;Lee, Hyun-Jeong;Oh, Young Kyun;Lee, Sung Dae
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.38 no.3
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    • pp.156-164
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    • 2018
  • Pesticide application in agriculture provides significant benefits such as protection from disease, prevention of harmful insects, and increased crop yields. However, accurate toxicological tests and risk assessments are necessary because of many related adverse effects associated with pesticide use. In this review, we discuss and analyze residual pesticides contained in livestock feed in Korea. A pesticide residue tolerance standard for livestock feed has not been precisely established; so, risk assessments are required to ensure safety. Standards and approaches for animal criteria and appropriate methods for evaluating residual pesticides are discussed and analyzed based on technology related to animal product safety in Korea. The safety of livestock feed containing pesticides is assessed to establish maximum residue limits relative to pesticides. Analysis of residual pesticides in milk, muscle, brain, and fat was performed with a livestock residue test and safety evaluation of the detected pesticide was performed. Efficacy of organic solvent extraction and clean-up of feed was verified, and suitability of the instrument was examined to establish if they are effective, rapid, and safe. This review discussed extensively how pesticide residue tolerance in livestock feed and hazard evaluation may be applied in future studies.

Monitoring Survey of the Herbicide Butachlor in Five Major Crops (주요 5종의 농작물 중 butachlor의 잔류 monitoring)

  • Moon, Young-Hee
    • The Korean Journal of Pesticide Science
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    • v.5 no.1
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    • pp.19-23
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    • 2001
  • This study was conducted to monitor the residue of the herbicide butachlor in major crops. The residue monitoring covered 106 samples of rice, barley, garlic, onion, and strawberry colledted from markets of intensive cultivation area including Kwangju, Daegu, and Pusan. The residue levels in 27 sample of polished rice produced by applying the herbicide were below the detection limits adopted analytical method. The residue levels in 21 sample of garlic, 18 sample of onion, and 18 sample of strawberry which were succeeding crops after paddy rice were also below the detection limits. In consequent, all the samples resulted safe status in terms of the butachlor residue level in agricultural produce.

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Procedures in Establishing Residue Limits of Pesticides on Food Crops in Korea (한국에서 농산물중 농약잔류 허용기준의 설정절차)

  • Lee, Mi-Gyung;Hong, Moo-Gi;Park, Kun-Sang;Choi, Dong-Mi;Lim, Moo-Hyuk;Lee, Su-Rae
    • Korean Journal of Food Science and Technology
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    • v.37 no.4
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    • pp.685-694
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    • 2005
  • Korean practices in tolerance setting of pesticide residues on food crops were compiled with an effort to harmonize with international standards. Based on scientific data including historical background, limit setting protocols, adoption of ADI values, food factors, nation's body weights, and regulatory margins which are required for the setting of maximum residue limits, necessary measures to be taken by Korean regulatory authorities were proposed.