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복숭아(Prunus persica Batsch) ‘홍백’의 유통 중 품질에 미치는 수확 후 처리 효과
서정석(Jeong-Seok Seo),황용수(Yong-Soo Hwang),천종필(Jong-Pil Chun) 충남대학교 농업과학연구소 2009 농업과학연구 Vol.36 No.2
‘홍백’ 복숭아를 대상으로 저장 및 유통 중 품질 향상을 위한 1-MCP처리 방법과 4종의 선도 유지제 처리효과를 구명하기 위하여 본 연구를 수행하였으며 그 결과는 다음과 같다. ‘홍백’ 복숭아의 적정 1-MCP 농도는 1000ppb였고 경도유지 및 착색지연에 있어서 가장 우수한 효과를 나타내었는데 당도 및 산도의 변화에는 크게 영향을 미치지 않았다. 유통온도에 따른 1-MCP와 에틸렌 제거제의 효과를 보면 20℃ 저장의 경우에 비하여 30℃ 저장의 경우 1-MCP 처리의 긍정적 효과가 더욱 크게 나타났다. 이러한 결과는 1-MCP 처리가 고온에서의 유통과정 중 품질유지가 효과적일 수 있다는 것을 시사한다. 한편 1-MCP와 선도유지를 위한 박스 내 충진물질의 복합처리 효과를 검토하여 본 결과 1-MCP와 카본세라믹 복합처리구의 경우에서 가장 높은 경도유지효과를 나타내어 실용성이 인정되었다. This study was conducted to investigate the effect of 1-MCP, market temperature and combination treatment of freshing agent with 1-MCP on fruit quality of 'Hong Bak' peach ( Prunus persica Batsch). The 1-MCP treatment at the rate of 1000ppb showed the best results in delaying the firmness loss and skin color development during shelf life without any detrimental effects on fruit quality. Moreover, positive effects of 1-MCP on fruit quality parameters were more significant in the fruits stored at 30℃ of high temperature shelf life than those of 20℃. The combination treatment of carbon ceramic with 1-MCP showed a beneficial effects including a prevention of firmness loss and maintaining external appearance during the five days of room temperature storage of 'Hong Bak' peach.
1-MCP 및 수확 후 처리가 복숭아(Prunus persica Batsch) ‘장호원황도’ 저장 유통 중 품질에 미치는 영향
천종필(Jong-Pil Chun),서정석(Jeong-Seok Seo),김명선(Myung-Surn Kim),임병선(Byung-Sun Lim),안영직(Young-Jik Ahn),황용수(Yong-Soo Hwang) 한국원예학회 2010 원예과학기술지 Vol.28 No.4
복숭아 ‘장호원황도’에 있어 저장, 유통 중 품질 향상을 위한 1-MCP 처리 및 에틸렌제거제 처리효과를 검토하였다. 1-MCP를 1.0?LㆍL?¹ 농도로 처리하였던 경우 8일간의 상온유통 중 경도유지 및 착색지연에 효과적인 것으로 나타났는데 완숙과에 비하여 성숙과에서 1-MCP 처리 효과가 크게 나타났다. 그러나 1-MCP를 0.5?LㆍL?¹ 농도로 처리하였던 경우에는 품질유지 효과가 나타나지 않았다. 1-MCP를 0.5 및 1.0?LㆍL?¹로 처리하였던 경우 과실의 에틸렌 발생을 억제하였는데 호흡률 저하는 1.0?LㆍL?¹ 처리구에서만 유의하게 나타났다. 저온저장 중 1-MCP 처리와 에틸렌제거 처리 효과를 비교한 결과, 처리 효과가 저장 5일 후까지만 1-MCP를 처리한 과실의 경도가 높게 유지되었고 에틸렌 제거제 처리의 경우 성숙과의 경우에만 단기적 경도 유지효과를 보여주었다. 저온저장 중 에틸렌제거를 실시하였던 경우 성숙과에서 저장 초기에 경도 감소를 지연하는 효과를 보였으나 완숙과에서는 효과가 떨어지는 것으로 조사되었다. 한편 1-MCP처리 과실에 대한 박스 내 에틸렌제거제 복합처리는 과실의 경도유지효과를 나타내어 상온유통 5일 후 성숙과의 경우 1-MCP 처리구는 무처리구에 비하여 약 2배 경도가 높아 실용성이 있는 것으로 판단되었다. This study was conducted to investigate the effect of 1-MCP, an ethylene action inhibitor, and several postharvest treatments including ethylene scrubbing on fruit quality and respiration for keeping marketability in ‘Janhowon Hwangdo’ peach (Prunus persica Batsch). 1-MCP at the rate of 1.0 ?LㆍL?¹ showed best results in maintenance of fruit firmness and external appearance such as skin color. The ethylene production was strongly reduced by 1-MCP treatment at 0.5 or 1.0 ?LㆍL?¹ but respiration rate was only suppressed at 1.0 ?LㆍL?¹ during 6 days of shelf life at 20℃. Mature fruits (harvested 1 week before full commercial maturity) were much highly responsive to 1.0 ?LㆍL?¹ of 1-MCP compared to those of commercial maturity. At the concentration of 0.5 ?LㆍL?¹ of 1-MCP did not affect fruit marketability compared to untreated control. Beneficial effects of carbon ceramic as an ethylene scrubber were also found such as delay of firmness loss and deterioration of external appearance at 10℃, but these positive effects on fruit quality remained for only 5 days. The application of ethylene scrubber on the shipping carton boxes was effective on keeping firmness of immature fruit pretreated with 1-MCP when compared with mature fruit.
한국형 우울장애 약물치료 알고리듬 2021 (VI) : 비약물학적 생물치료
정종현(Jong-Hyun Jeong),우영섭(Young Sup Woo),박원명(Won-Myong Bahk),왕성민(Sheng-Min Wang),서정석(Jeong Seok Seo),박영민(Young-Min Park),김원(Won Kim),심세훈(Se-Hoon Shim),이정구(Jung Goo Lee),장승호(Seung-Ho Jang),양찬모(Chan-Mo Y 대한신경정신의학회 2021 신경정신의학 Vol.60 No.4
Objectives The Korean Medication Algorithm Project for Depressive Disorder 2021 (KMAP-DD 2021) was made to update new researches and data. This study focused on non-pharmacological biological treatments. Methods Ninety-seven psychiatrists with extensive clinical experience in the non-pharmacological biological treatment of depressive disorder were primary selected and a questionnaire was sent to each of them by mail, 65 of the 97 replied. Results Electroconvulsive therapy (ECT) was recommended as an initial strategy for major depressive disorder, severe depressive disorder with/without psychotic features with urgent suicidal risk, or a severe depressive episode with psychotic features in pregnant patients, for non-responders on pharmacotherapy for a moderate depressive episode, and as a second strategy for non-responders on antidepressant monotherapy or combination therapy combined with physical illness. For pregnant women with a severe episode of major depressive disorder, repetitive transcranial magnetic stimulation (rTMS) was preferred as a first-line strategy, and as a second strategy for non-responders on combined antipsychotic and antidepressant therapy and non-responders with comorbidity and physical illness. Complementary or novel treatment was not recommended as the first-line treatment strategy for depressive disorder, but transcranial direct current stimulation (tDCS), vagus nerve stimulation (VNS), deep brain stimulation (DBS), light therapy, and omega-3 fatty acid nutritional therapy were second-line treatment strategies. Conclusion ECT and rTMS are initial strategies in specific clinical situations. Preferences for complementary or novel treatments such as tDCS, light therapy, and omega-3 fatty acid nutritional therapy have increased gradually, but in practice, their usages are still limited.
한국형 우울장애 약물치료 알고리듬 2021 (II) : 임상 아형
박영민(Young-Min Park),서정석(Jeong Seok Seo),우영섭(Young Sup Woo),박원명(Won-Myong Bahk),김원(Won Kim),정종현(Jong-Hyun Jeong),심세훈(Se-Hoon Shim),이정구(Jung Goo Lee),장승호(Seung-Ho Jang),왕성민(Sheng-Min Wang),정명훈(Myung Hun 대한신경정신의학회 2021 신경정신의학 Vol.60 No.3
Objectives The Korean Medication Algorithm Project for Depressive Disorder (KMAP-DD) was developed in 2002 and revised in 2006, 2012, 2017. In 2021, the fifth edition was published. This edition reflected new findings and the latest trends in the areas of pharmacological treatment. The aim of this study is to present strategies and treatment options according to the subtype of depression using data from the KMAP-DD-2021. Methods Ninety-seven psychiatrists with clinical experience in depressive disorder were selected. The questionnaires for KMAP-DD 2021 were sent to participants via mail. KMAP-DD 2021 consists of overall treatment strategies and treatment options under specific circumstances. Each treatment strategy or treatment option was evaluated with an overall score of nine and was divided into the three phases of recommendation that include primary, secondary, and tertiary. Results For persisting depressive disorder, antidepressant monotherapy including selectiveserotonin reuptake inhibitor (SSRI) (escitalopram, fluoxetine, sertraline, paroxetine), serotoninnorepinephrine reuptake inhibitor (SNRI) (desvenlafaxine, venlafaxine, duloxetine, milnacipran), vortioxetine, and mirtazapine, was recommended as first-line medications. For melancholia of major depressive disorder, SSRI, SNRI, vortioxetine, and mirtazapine also were recommended as first-line medications. For mixed features, SSRI, bupropion, mirtazapine, SNRI, except for duloxetine, and milnacipran were recommended as first-line medications. For anxious distress, SSRI, mirtazapine, and SNRI, except milnacipran, were recommended as first-line medications. Conclusion The preferences of antidepressants by experts differed according to the subtype of depression. These findings suggest that experts treat patients with a major depressive disorder after considering the subtype of depression involved.
백색 및 청색 방풍망 차광 처리가 ‘후지’, ‘홍로’ 사과 과실의 품질에 미치는 영향
강경진(Kyeong-Jin Kang),서정학(Jeong-Hak Seo),윤홍기(Hong-Ki Yoon),서정석(Jeong-Seok Seo),주정일(Jung-Il Joo),천종필(Jong-Pil Chun) (사)한국생물환경조절학회 2020 시설원예‧식물공장 Vol.29 No.2
본 연구는 ‘후지/M.9’와 ‘홍로/M.9’가 재식된 사과원에 바람이나 우박을 막기 위해 사용되는 망(구멍 크기 : 2×2mm)을 수관상부에 색상별로 백색과 청색을 나누어 설치한 후 햇빛의 차광정도 및 생육환경 차이 등에 따른 과실품질 변화를 조사하였다. ‘후지’ 사과의 경우 대기온도 34.8℃인 오후 2~3시경의 과실표면 온도를 측정한 결과, 무처리는 40.0℃로 가장 높았고, 청색 방풍망과 백색 방풍망 처리구는 각각 34.9℃, 36.6℃로 크게 낮았다. ‘홍로’에서는 무처리구가 44.2℃일 때, 청색 방풍망 처리구는 38.3℃, 백색 방풍망 처리구는 38.5℃를 기록하여 ‘후지’와 마찬가지로 온도 경감효과를 보였다. ‘후지’의 과피색차를 조사한 결과, 과피적색도(a*)는 무처리구가 16.5, 청색 방풍망 처리구는 18.0였으나, 백색 방풍망 처리구는 19.3으로 가장 높은 값을 보였다. ‘홍로’에서도 백색방풍망 처리구가 적색도가 34.9로 무처리구 28.1에 비해 유의하게 높은 적색도 발현을 보였다. 일소피해 조사결과, ‘후지’에서 청색 방풍망 처리구 3.8%, 백색 방풍망 처리구 4.2%로 무처리구 9.4%에 비하여 크게 경감되었고, ‘홍로’의 경우는 청색 방풍망 처리구는 8.8%, 백색 방풍망 처리구는 12.4%로 무처리구 28.8%에 비하여 일소발생이 현저히 감소하였다. 이 같은 결과는 처리별 자외선 수치를 측정하였을 때 무처리 구간의 자외선 값에 비해 청색 방풍망 처리구에서 유의하게 낮아 방풍망 처리에 의한 자외선 차단 효과에 의한 것을 확인할 수 있었다. In Yesan-gun, Korea"s main apple-producing region, the area of apple cultivation and yield are declining. In particular, the worsening quality of fruits due to unusually high temperatures amid recent climate change has also become a major challenge for apple orchards located on flatlands. The objective of this research is to investigate quality changes of apples according to different growing environments, depending on the shade of the sun, by covering the trees with different colors of wind nets. A white and blue wind nets with a hole size of 2 × 2 mm is installed on two experimental trees, 17-year-old ‘Fuji’ and ‘Hongro’, which are planted 1.5 m × 3.5 m in the north-south direction. Treatment of wind nets effectively lowered fruit surface temperature regardless of apple variety. When measuring the temperature of the fruit surface at 2 pm, the temperature of the air was 34.8°C, but the ‘Fuji’ of the untreated blocks was the highest at 40.0°C, while the blue wind net and the white wind net were significantly lower at 34.9°C and 36.6°C, respectively. In ‘Hongro’, the results showed that the surface temperature was effectively lowered by recording 38.3°C for the blue wind net and 38.5°C for the white wind net treatment when the untreated one was 44.2°C. According to the color difference in ‘Fuji’, the skin redness (a*) was the lowest with untreated control at 16.5, but the blue and white wind net treatment higher at 18.0 and 19.3, respectively. In ‘Hongro’, the white wind net treated fruit also showed a much higher skin redness than the untreated control of 28.1, showing much higher a* of 34.9. Sunburn damage in ‘Fuji’ apples amounted to 9.4% in untreated control. However, the blue and white wind net treatment revealed to 3.8% and 4.2%, respectively. In ‘Hongro’, those damage in the fruits treated with blue or white wind net, accounted for only 8.8% and 12.4%, respectively, significantly lower than 28.8% occurrence of untreated one. And, these results were understood to be the result of low UV radiation being blocked by the treatment of wind nets.
한국형 우울장애 약물치료 알고리듬 2021 (IV) : 여성 및 노인
왕성민(Sheng-Min Wang),박원명(Won-Myong Bahk),우영섭(Young Sup Woo),서정석(Jeong Seok Seo),박영민(Young-Min Park),김원(Won Kim),정종현(Jong-Hyun Jeong),심세훈(Se-Hoon Shim),이정구(Jung Goo Lee),장승호(Seung-Ho Jang),양찬모(Chan-Mo Y 대한신경정신의학회 2021 신경정신의학 Vol.60 No.4
Objectives An expert consensus guideline for the treatment of depressive disorder, the Korean Medication Algorithm Project for Depressive Disorder (KMAP-DD), was first established in 2002 and updated in 2017. To provide an up-to-date treatment guideline, KMAP-DD 2021 was recently completed. This study was undertaken to provide a guideline for the treatment of depressive disorder in a selected population that included females and elderly. Methods The survey conducted consisted of 7 questionnaires for each population, females and elderly, with depressive disorder. A total of 65 of 97 experienced psychiatrists answered the survey. Results For the treatment of premenstrual dysphoric disorder, the selective serotonin reuptake inhibitors, venlafaxine, and desvenlafaxine were recommended as first-line therapies. For major depressive disorder (MDD) during pregnancy, antidepressant (AD) monotherapy was recommended as a first-line therapy for mild to moderate and severe depression, and combined electroconvulsive therapy and AD with atypical antipsychotics (AAP) were recommended as a first-line therapy for severe depression with psychotic features. AD plus AAP was generally recommended for post-partum depression. In elderly with depression, AD monotherapy was recommended as the treatment of choice for mild to moderate episodes, and AD monotherapy and AD plus AAP were recommended as a first-line therapy for severe depression without psychotic features. Lastly, AD plus AAP was chosen as the treatment of choice for psychotic depression. Conclusion Present study provides an updated algorithm for the treatment of females and elderly with depressive disorders. This algorithm provides a practical aid to clinicians for the treatment of females and elderly with MDD.