http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 정명근 ( Myo) (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
NAY MYO WIN,유진기,류슬기,이진욱,정희영,정명근,박경일,조영제,강상재,강인규 한국식품저장유통학회 2017 한국식품저장유통학회지 Vol.24 No.7
This study was aimed to test harvest time effect with polyethylene (PE) film liner, 1-methylcyclopropene (1-MCP) and aminoethoxyvinylglycine (AVG) treatments on fruit quality attributes in ‘Sangjudungsi’ persimmon fruit during cold storage. The fruits were harvested 10 days earlier in 2016 than the mature harvest time in 2015. The ethylene production was significantly lower in early harvested fruits than in mature harvested ones. Flesh firmness was maintained higher in 1-MCP treated fruit than in other treatments during cold storage. The rate of fruit weight loss was significantly inhibited by PE film liner treatment during storage, regardless of harvest time. 1-MCP treatment showed less change in fruit peel color variables (L* and b*) from the calyx-end and equatorial regions during cold storage, compared with those from the control and PE film treatments. The incidence rate of fruit decay and softening was higher in PE film treated fruits than in the other treatments. However, there was no decay detected in AVG treated fruit. The early harvested fruits were maintained higher flesh firmness, compared with mature harvested fruits. Nevertheless, the mature harvested fruits showed much higher soluble solids content, the redness (Hunter a value) of the fruit peel and respiration rate, compared with early harvested fruits. Furthermore, the rate of weight loss in the fruit was remarkably inhibited in the PE film treatment.
-
Jingi Yoo(유진기),In-Kyu Kang(강인규),Jun-yeun Park(박준연),Kyoung-ook Kim(김경욱),Nay Myo Win(나이묘위),Seulgi Ryu(류슬기),Dae Hyun Kim(김대현),Myoung-Gun Choung(정명근),Jinwook Lee(이진욱) (사)한국생물환경조절학회 2016 생물환경조절학회지 Vol.25 No.4
본 연구는 ‘상주둥시’ 감을 3개월동안 -1, 0.5, 3℃에 저장하면서 감 과실의 과실품질 변화와 저장장해 증상에 미치는 영향을 구명하고자 실시하였다. 저장온도에 따른 감 과실의 에틸렌 발생량은 저장온도가 낮을수록 그 발생량이 낮았으나 호흡율은 영향을 받지 않았다. 과실의 경도는 모든 처리구들에서 저장기간이 길어지면서 감소하였고 저장온도가 높을수록 과실 경도의 저하는 더 빠르게 진행되었다. 또한 저장기간이 길어지고 저장온도가 높을 수록 과실의 연화가 급속히 진행되었다. 과실의 감모율도 저장온도가 높을수록 증가하였고, 가용성 고형물 함량도 저장온도가 낮을수록 더 높게 유지되었다. 감 과실의 과정부와 과실측면의 과피색 L<SUP>*</SUP>, a<SUP>*</SUP>, b<SUP>*</SUP> 값의 변화는 저장온도 -1℃와 0.5℃에서는 저장기간에 따른 차이를 거의 보이지 않았으나, 3℃처리구에서는 과피색의 변화가 현저히 적었다. 저장중 발생하는 생리장해증상인 과피흑변, 과실연화 및 부패정도는 온도가 높을수록 그 증상이 심하게 발생하여 과실품질이 현저히 감소하였다. The objective of this study was to evaluate the effect of storage temperature on fruit quality attributes and physiological disorders including peel blackening in ‘Sangjudungsi’ persimmon (Diospyros kaki Thunb.) fruit stored in air at -1, 0.5 or 3℃ for up to 3 months. Higher storage temperature reduced ethylene production but not respiration rate, compared with lower storage temperature. Flesh firmness decreased continuously as storage time passed but firmness was reduced rapidly in the fruits stored at higher storage temperature. Fresh weight loss increased at higher storage temperatures. Soluble solids content was higher at lower storage temperature than at higher storage temperature. All color variables (L<SUP>*</SUP>, a<SUP>*</SUP>, b<SUP>*</SUP>) were reduced by lower storage temperature, compared with higher storage temperature, regardless of tissue regions. Fruit softening increased as storage duration advanced and with the increase in storage temperature. Results indicated that the ‘Sangjudungsi’ persimmon fruits stored at higher storage temperature (3oC) could not retain fruit quality properly on account of lower flesh firmness and higher incidence of peel blackening and fruit decay, compared with lower storage temperature.
-
식품의약품안전처 SESSION : GC/ECD/MS를 이용한 농산물 중 Quintozene의 잔류분석
안경근 ( Kyung Geun Ahn ),김기쁨 ( Gi Ppeum Kim ),조영욱 ( Young Wook Cho ),황영선 ( Young Sun Hwang ),이수진 ( Su Jin Lee ),윤원갑 ( Won Kap Yun ),강민주 ( Min Ju Kang ),김슬아 ( Seula Kim ),이영득 ( Young Deuk Lee ),정명근 ( Myo 한국환경농학회 2013 한국환경농학회 학술대회집 Vol.2013 No.-
Quintozene, pentachloronitrobenzene(PCNB) is a contact fungicide for control of soilborne phytopathogenic fungi during cultivation of diverse crops. It was introduced to agricultural use around 1930`s as a substitute for mercurial disinfectants. Although quintozene had been first registered in Korea in 1969 but now banned to use due to its high residue levels in selected harvests, high possibility is expected that the residue may be contained in imported agricultural commodities as it is still used widely over the world. Therefore, this study was conducted to establish a determination method for quintozene residue in crops using GC/ECD/MS. Quintozene residue was extracted with acetonitrile from representative samples of five raw products which comprised hulled rice, soybean, Chinese cabbage, green pepper, and apple. The extract was diluted with saline water, and n-hexane partition was followed to recover quintozene from the aqueous phase. Florisil column chromatography was additionally employed for final clean up of the extract. The quintozene was quantitated by GLC with ECD, using a DB-1 capillary column. The crops were fortified with quintozene at 3 levels per crop. Mean recoveries ranged from 79.9% to 102.7% in five representative agricultural commodities. The coefficients of variation were less than 4.3%. Quantitative limit of quintozene was 0.004 mg/kg in representative five crop samples. A GC/MS with selected-ion monitoring was also provided to confirm the suspected residue. Therefore, this analytical method was reproducible and sensitive enough to determine the residue of quintozene in agricultural commodities.
KCI
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
