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오영열,강동수,김해섭,김경은,최옥수,배태진 여수대학교 산업기술지역개발연구소 2000 産業基術硏究所 論文集 Vol.9 No.-
Conditions for processing dried condiments with bloody clam were investigated. The enzymatic hydrolysis for 1 hour was more profitable than hydrothermal extraction to develop flavoring matters from bloody clam. As a result of omission tests, nucleotides were predominated in the taste compounds of bloody clam hydrolysates rather than free amino acids, and the contribution of nucleotides and free amino acids to the taste of bloody clam hydrolysates was remarkable. The major flavoring components of bloody clam hydrolysates were free amino acids and oligopeptides below 500 dalton. When bloody clam hydrolysates were separated with membrane(molecular weight cutoff 500 dalton) for recovering flavor, recovering yields of amino type nitrogen were 92.4%. Proximate compositions of dried condiments prepared with protease hydrolyzed bloody clam were moisture content 3.6%, total nitrogen were 71.2% amino nitrogen were 47.8%. And drying yield, solubility and absorption rates at Aw 0.88 were 21.4%. 86.3% and 6.6%, respectively.
토양유기물 함량이 인삼근의 endosulfan 흡수이행에 미치는 영향
오경열 ( Kyeong-yeol Oh ),최근형 ( Geun-hyoung Choi ),배지연 ( Ji-yeon Bae ),이득영 ( Deuk-yeong Lee ),이성우 ( Sung-woo Lee ),김진효 ( Jin-hyo Kim ) 한국응용생명화학회 2020 Journal of Applied Biological Chemistry (J. Appl. Vol.63 No.4
The plant uptake of endosulfan, a new persistent organic pollutants from soil environment was investigated on ginseng through the field survey in Korea. The endosulfan residues in soil for this survey were ranged on 0.013-0.136 mg kg<sup>-1</sup>. The plant uptake factor (PUF) for endosulfan in ginseng was 0.243-1.708 and the highest PUF was found on 3-year-old ginseng. The PUF for endosulfan decreased in the longer cultivation period and it might be caused by the dilution effect of ginseng growth. In addition, the soil organic matter (SOM) content affected on the PUF negatively and Pearson correlation coefficient (r) between SOM and PUF was -0.7812 (p <0.05). Thus, higher SOM would positively affect to reduce the endosulfan residue in ginseng root.
고함량 사포나린 함유 보리 어린 순 재배를 위한 식물공장내 인공광 조건 및 사포나린 추출 분석법 최적화
오경열 ( Kyeong-yeol Oh ),송영훈 ( Yeong Hun Song ),이득영 ( Duek-yeong Lee ),이태근 ( Tae-geun Lee ),김진효 ( Jin-hyo Kim ) 한국응용생명화학회 2021 Journal of Applied Biological Chemistry (J. Appl. Vol.64 No.3
Saponarin is a crucial component of barley sprout, and the production and quantitative analysis are issued to date. In this study, the optimal saponarin extraction conditions were presented on the subject of acetonitrile, ethanol, methanol, and water for the quantitative analysis in barley sprout through the extraction efficiency compared with the solvent concentration and extraction time using the reaction surface methodology. The optimal extraction time and solvent condition for saponarin were 3.9 h and 53.7% of aqueous methanol, respectively. In addition, the effect of LED artificial light on the saponarin production in barley sprouts was evaluated by the light cycle, light quantity, and light quality. The optimal cultivation conditions under artificial light for the growth of barley sprout and saponarin production were most effectively achieved on 220-320 μmol m<sup>-2</sup> s<sup>-1</sup> of the light quantity with 8 h day<sup>-1</sup> of a daylight cycle under 6500K LED combined with red light. Furthermore, blue light was evaluated as the main factor in the biosynthesis of saponarin.
시설재배 애호박 중 Dichlorvos와 Etofenprox 사용에 따른 경시적 잔류량 변화
오경열(Kyeong-Yeol Oh),배지연(Ji-Yeon Bae),이득영(Deuk-Yeong Lee),김영진(Yeong-Jin Kim),이동열(Dong-Yeol Lee),김진효(Jin-Hyo Kim) 한국농약과학회 2021 농약과학회지 Vol.25 No.1
Dichlorvos and etofenprox as insecticides were widely used for crop protection, but the residues of the pesticides in the fruit and the leaf of squash were not studied well. In here, the residues dissipation and the biological half-lives were investigated in the fruit and the leaf of squash. The residues of dichlorvos in the leaf and fruit of squash were detected 0.916-1.111 mg kg<SUP>-1</SUP> and 0.016-0.025mg kg<SUP>-1</SUP> on 0 day-after-treatment (DAT) respectively, but no detection showed after 3 DAT both in the fruit and in the leaf. The etofenprox residues were 0.075-0.098 mg kg<SUP>-1</SUP> and 6.378-7.443 mg kg<SUP>-1</SUP> on 0 DAT in the fruit and the leaf, but the residue concentration in the fruit was below the temporal maximum residue limit (0.2 mg kg<SUP>-1</SUP>) regardless of the harvest date. The half-lives of etofenprox in the fruit and the leaf were 3.5 and 7.1 day, respectively. In addition, the dietary exposure risks of etofenprox were estimated to 0.018% and 0.027% of acceptable daily intake (ADI) for all age group from the fruit and the leaf. Furthermore, the %ADI for the infant group (1-2-year-old, 0.044% ADI) and the elder age group (≥65-year-old, 0.031% ADI) were higher than all the age groups from the dietary of the fruit.