• 한국식품과학회지
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• 제24권1호
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• pp.97-100
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• 1992

실험실에서 제조된 비지는 약 57%의 식이섬유와 20%의 단백질을 함유한 반면, 시판용 비지는 약 59%의 식이섬유와 17%의 단백질을 함유하였다. 비지와 두부의 총식이섬유중 수용성 식이섬유는 3%와 46%를 차지하였다. 비지를 2회 분홰후 사별하고 액체부분을 원심분리한 결과 체위의 비지 식이섬유함량은 58.7%에서 80.6%로 증가되었고 식이섬유회수율은 90.4%이었다. 원심 분리후의 고형물은 46.8%의 단백질을 함유하였고, 단백질의 회수율은 29.2%를 나타냈다. 체위의 비지 지질함량은 처리전보다 훨씬 낮았다.

• 한국식품위생안전성학회지
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• 제25권2호
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• pp.106-117
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• 2010

2009년 1월부터 12월까지 서울 강북지역에서 유통되고 있는 농산물 109종 3,988건을 대상으로 272종 농약의 잔류량을 분석하였다. 1. 2009년 서울 강북지역에서 유통 중인 3,988건의 농산물을 대상으로 잔류농약 272종에 대한 잔류 실태를 조사한 결과 총 3,988건 중 1,021건에서 농약이 검출되어 25.6%의 검출률을 나타냈으며, 이 중 잔류허용기준을 초과하여 부적합 농산물로 판정된 시료는 89건으로 부적합률은 2.2% 였다. 2. 분석대상 농약 272종 중에서 검출된 농약 성분은 77종으로 프로시미돈 211회, 엔도설판 195회, 클로르훼나피르 122회, 싸이퍼메쓰린 116회, 비펜스린 60회 등의 순으로 나타났다. 이 중 부적합이 발생된 농약은 30종이며 엔도설판 19회, 프로시미돈 12회, 톨크로포스-메칠 10회, 이프로디온 5회, 플로토라닐 4회 등의 순으로 나타났다. 3. 검출농약 77종 중 내분비계 장애 추정농약에 해당되는 농약은 메소밀, 빈클롤졸린, 싸이퍼메쓰린, 엔도설판, 이프로디온, 카벤다짐, 클로로타로닐, 클로르피리포스, 트리풀루라린, 펜디메타린, 펜발러레이트, 프로시미돈, 헥사코나졸의 13종이었고, 이들의 검출 횟수는 688회였다. 검출된 농약 13종 중 8종이 잔류허용기준을 초과하엿다. 4. 검출된 월별 농약 검출률을 살펴 보면, 10.0%의 검출율을 넘는 달은 2월, 3월, 4월, 7월 이었으며, 3월과 7월이 가장 높은 검출률을 나타내었다. 2월, 3월, 4월에 부적합률이 높은 것으로 나타났다.

• 농약과학회지
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• 제5권1호
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• pp.19-23
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• 2001

수도용 제초제 butachlor의 작물잔류성을 조사할 목적으로 주산단지 및 광주, 대구, 부산지역의 시장에서 쌀, 보리, 마늘 양파, 딸기 등 106점의 시료를 채취하여 잔류량을 분석하였다. 제초제 butachlor가 등록되어 있는 작물의 수확물 중 쌀 27점과 보리 15점에서 butachlor가 검출되지 않았으며, 또한 벼 재배 후 이모작으로 재배되는 작물인 마늘21점, 양파 18점, 딸기 18점에서도 검출되지 않았다.

• 한국식품영양과학회지
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• 제25권3호
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• pp.453-459
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• 1996

This study was carried out to determine the changes in quality during the drying process and the optimum drying condition for utilizing soybean curd residue. The quality criteria for soybean curd residue were acid value, peroxide value, fatty acid composition and microbial concentration. The acid values of soybean curd residue were 7.5, 4.5 and 5.9 KOH mg/g upon 12 hour drying with open-air sun, ambient-air blast and warm-air blast, respectively. The numbers of total aerobic bacteria and molds increased remarkably during drying with open-air sunlight, ambient-air blast and warm-air blast except for hot air blast. Among different drying methods, the hot air blast drying(1kg of sample) was the most effective methods, which completed in three hours. Also, the drying method demonstrated a typical drying curve ; settling down, constant rate drying and falling rate drying period were shown within one hour, from one and three hours and after three hours, respectively. Moreover, there was significant variation in the constant drying period for the quality of soybean curd residue.

• 한국식품과학회지
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• 제37권4호
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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.

• Korean Journal of Mathematics
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• 제13권1호
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• pp.103-112
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• 2005

Using the Newton's identities, we give the inductive formula for the generator polynomials of the $p$-adic quadratic residue codes.

• 한국환경보건학회지
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• 제2권1호
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• pp.11-15
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• 1975

The study Was carried out to determine the residue concentrations of peniccillin in Merket milk samples collected from some of the retail shops located in Seoul City. During the period from June to September 1974, 160 milk samples were collected and examined, using the Filter Paper Disk Method, for Screening test and Quantitative test of penicillin residue. The results obtained in the study were as follows: 1. Among the 160 Market Milk samples. 28 samples (17.5%) proved to contain some antibiotics residue. 2. In the case of the antibiotics residue positive milk samples, the rate of penicillin residue alone was 46.4% and the rate of the other antibiotics was 53.6%. 3. In the distribution of milk plants examined in relation-to the antibiotics residue positive milk samples, it was shown that S.K.H. and M.Market Milk plants had 15.0, 17.5, 20.0 and 17.5 percent respectively. 4. According to the monthly distribution, the highest antibiotics residue positive rate (25.0% of the samples) was shown in the samples collected in August, and the next (20.0% of the samples) in July. While the samples collected in June and September 1974 Showed lower rates of 7.5% and 17.5% respectively. 5. The range of the residue concentraction of penicillin in the positive milk samples were as follows: a. 53.8% of the total samples were found in the lowest range of 0.02-0.05 IU/ml. b. 30.8% of the total samples were found in the lower range of 0.05-0.1 IU/ml. c. 7.7% of the total samlpes were found in the higher range of 0.1-0.2 IU/ml. d. 7.7% of the total samples were found in the highest range of over 0.2 IU/ml.

• Asian-Australasian Journal of Animal Sciences
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• 제28권1호
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• pp.135-142
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• 2015

This study was conducted to evaluate the effect of inclusion of propolis extraction residue in the feed of broilers from 1 to 21 d of age on phagocytic activity of macrophages, cutaneous basophil hypersensitivity response to phytohemagglutinin, antibody production against Newcastle disease, lymphoid organ weight and hematological profile and to determine the optimal level of inclusion. 120 chicks, reared in metabolism cages until 21 days of age, were distributed in a completely randomized design, with five treatments (0%, 1%, 2%, 3%, and 4% of propolis residue) and six replications. The relative weight of thymus and monocyte percentage were affected by propolis residue, with a quadratic response (p<0.05) and lowest values estimated at 2.38% and 2.49%, respectively. Changes in relative weight of cloacal bursa and spleen, percentage of lymphocyte, heterophil, basophil, eosinophil, and heterophil:lymphocyte ratio, antibody production against Newcastle disease, phagocytic activity of macrophages and the average number of phagocytosed erythrocytes were not observed. The nitric oxide production with regard to positive control (macrophages+erythrocytes) decreased linearly (p<0.05) with increased doses of propolis residue. The remaining variables of nitric oxide production (negative control - macrophages, and difference between the controls) were not affected by propolis residue. The cutaneous basophil hypersensitivity response to phytohemagglutinin as determined by the increase in interdigital skin thickness exhibited a quadratic response (p<0.05), which predicted a lower reaction response at a dose of 2.60% of propolis residue and highest reaction response after 43.05 hours of phytohemagglutinin injection. The inclusion of 1% to 4% of propolis extraction residue in broiler diets from 1 to 21 days of age was not able to improve the immune parameters, despite the modest changes in the relative weight in thymus, blood monocyte percentage, nitric oxide concentration, and interdigital reaction to phytohemagglutinin.

• Journal of Microbiology and Biotechnology
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• 제30권11호
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• pp.1688-1696
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• 2020

Soil physical and chemical characteristics, soil potential denitrification rates (PDR), community composition and nirK-, nirS- and nosZ-encoding denitrifiers were studied by using MiSeq sequencing, quantitative polymerase chain reaction (qPCR), and terminal restriction fragment polymorphism (T-RFLP) technologies base on short-term (5-year) tillage field experiment. The experiment included four tillage treatments: conventional tillage with crop residue incorporation (CT), rotary tillage with crop residue incorporation (RT), no-tillage with crop residue retention (NT), and rotary tillage with crop residue removed as control (RTO). The results indicated that soil organic carbon, total nitrogen and NH₄⁺-N contents were increased with CT, RT and NT treatments. Compared with RTO treatment, the copies number of nirK, nirS and nosZ in paddy soil with CT, RT and NT treatments were significantly increased. The principal coordinate analysis indicated that tillage management and crop residue returning management were the most and the second important factors for the change of denitrifying bacteria community, respectively. Meanwhile, this study indicated that activity and community composition of denitrifiers with CT, RT and NT treatments were increased, compared with RTO treatment. This result showed that nirK, nirS and nosZ-type denitrifiers communities in crop residue applied soil had higher species diversity compared with crop residue removed soil, and denitrifying bacteria community composition were dominated by Gammaproteobacteria, Deltaproteobacteria, and Betaproteobacteria. Therefore, it is a beneficial practice to increase soil PDR level, abundance and community composition of nitrogen-functional soil microorganism by combined application of tillage with crop residue management.

• 한국환경농학회지
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• 제41권3호
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• pp.153-157
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• 2022

BACKGROUND: The residue dissipation pattern of pesticides for agricultural products during the pre-harvest period after the final application is important to prevent the maximum residue limit (MRL) violations in domestic and export markets. The MRL violations of carbendazim are observed more often in chamnamul by pesticide residue management surveys by the Ministry of Food and Drug Safety. The residue level at the pre-harvest interval (PHI) and the residue dissipation constant from the critical good agricultural practice (cGAP) trials could be estimated to meet the MRL and pose a health risk to consumers. METHODS AND RESULTS: Chamnamuls were harvested at 0, 1, 3, 5, 7, 10, and 14 days after application of carbendazim in accordance with critical GAP. The residue analysis in chamnanul was performed by HPLC-DAD with the C₁₈ column. The limit of quantitation of carbendazim was 0.04 mg/kg, and the recoveries were 74.4 - 95.8% at the two spiked levels (LOQ and 10LOQ) of carbendazim. The dissipation rates in chamnamul were calculated from the residues at the sampling days by statistical method at a 95% confidence level. The biological half-lives of residual carbendazim in the field trials 1 and 2 were 4.9 and 4.4 days, respectively. CONCLUSION(S): In this dissipation study, the residue concentrations at the recommended PHI were higher than the established MRL in Korea. Therefore, the MRL is proposed based on the residue data sets from the trials conducted at the same cGAP and the dietary exposure assessment.