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이찬형(Chan-Hyung Lee),전현숙(Hyun-Sook Jeon),권병윤(Byoung-Youne Kwon),김은덕(Eun-Deok Kim),장윤재(Yun-Jae Jang),이명숙(Myeong-Sug Lee),금종록(Jong-Lok Keum),송희봉(Hee-Bong Song) 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.4
Objectives: This study evaluated the odor emission characteristics from a wastewater treatment plant in an industrial complex area in Daegu City. Methods: Odor samples were collected from March 2016 to December 2016 and were analyzed for specified offensive odor substances. The odor quotient and the odor contribution was calculated. Results: Ammonia, hydrogen sulfide, acetaldehyde, and toluene were detected in all samples for monitoring specified odor compounds. The result of contribution analysis is that hydrogen sulfide had the highest contribution in all processes, followed by acetaldehyde. Conclusion: The major components of odor can be determined by evaluating the degree of contribution to the odor intensity and the concentration of the individual odor component. To increase the effectiveness of odor reduction, rather than addressing high-concentration odor compounds, policies focused on materials with a high odor contribution are necessary.
국산 장려콩으로 만든 두유의 Mineral, Oxalate 및 Phytate 함량과 품질특성
김기찬(Ki Chan Kim),황인국(In Guk Hwang),김현영(Hyun Young Kim),송항림(Hang Lin Song),김홍식(Hong Sig Kim),장금일(Keum Il Jang),이준수(Junsoo Lee),정헌상(Heon Sang Jeong) 한국식품영양과학회 2010 한국식품영양과학회지 Vol.39 No.8
국산 콩으로 제조한 두유의 품질특성과 무기성분, oxalate 및 phytate 함량을 분석한 결과는 다음과 같다. 두유의 수율 및 고형분 함량은 각각 8.43(보광콩)~9.15 mL/g(봉의콩과 한남콩) 및 4.37°Brix(안평콩)~7.17°Brix(봉의콩) 범위로 나타났으며, pH와 총산도는 각각 6.43~6.86 및 1.48~1.65% 범위를 나타내었다. 점도는 15.73(다원콩)~20.80 cP(한남콩) 범위를 나타내었다. 색도는 검은색 외피를 갖고 있는 청자콩, 다원콩, 선흑콩 및 검정콩4호로 만든 두유의 L값이 작았고 a값은 크게 나타났다. Calcium 함량은 0.714(금강콩)~1.589 ㎎/g(선흑콩) 범위였으며, oxalate 함량은 0.24(안평콩)~2.14 ㎎/g(한남콩), phytate 함량은 0.63(호장콩)~ 2.18 ㎎/g(안평콩) 범위였다. Calcium/oxalate 함량 분포에서 oxalate 함량이 calcium보다 넓은 분포를 나타내었으며, phytate/ oxalate 간에는 phytate가 넓은 분포를 나타내었다. 콩에서 두유로의 oxalate 전이율은 13.6(안평콩)~77.6%(진품콩2호) 범위였으며, phytate는 13.9~87.5%로 동북태가 가장 높았고 호장콩이 가장 낮았다. 이상의 결과를 종합해보면 국산 장려 콩을 이용하여 두유를 제조할 경우 phytate의 전이율이 높고 oxalate의 전이율이 낮은 봉의, 안평콩 및 보광콩이 좋을 것으로 판단되었다. This study was conducted to investigate the changes of quality characteristics, and mineral, oxalate and phytate content during soymilk process. The yields of soymilk ranged from 8.43 mL/g in Bokwangkong to 9.15 mL/g in Bongeuikong and Hannamkong, and total soluble solid contents were ranged from 4.37°Brix in Anpyeongkong to 7.17°Brix in Bongeuikong, respectively. The pH and total acidity of soymilk ranged from 6.43 to 6.86 and from 1.48% to 1.65%, respectively. The viscosity of soymilk was the highest value of 20.80 cP in Hannamkong and the lowest value of 15.73 cP in Dawonkong. The highest value of calcium content of soymilk was 1.589 ㎎/g in Seonheukkong, and oxalate and phytate in soymilk were high at 2.14 ㎎/g in Hannamkong and 2.18 ㎎/g in Anpyeongkong, respectively. The transfer ratio of oxalate from soybean to soymilk was the highest value of 77.6% in Jinpumkong 2, and one of the phytate was the highest value of 87.5% in Dongpuktae and the lowest value of 13.9% in Hojangkong.
국산 장려콩으로 만든 두부의 Mineral, Oxalate 및 Phytate 함량과 품질특성
김기찬(Ki Chan Kim),황인국(In Guk Hwang),김현영(Hyun Young Kim),송항림(Hang Lin Song),김홍식(Hong Sig Kim),장금일(Keum Il Jang),이준수(Junsoo Lee),정헌상(Heon Sang Jeong) 한국식품영양과학회 2010 한국식품영양과학회지 Vol.39 No.7
국산 콩으로 제조한 두부의 품질특성과 원료 콩과 두부에서의 oxalate와 phytate의 함량을 분석한 결과는 다음과 같다. 두부의 수율 및 수분함량은 각각 137.77~201.91% 및 74.42~80.01% 범위로 나타났으며, 색도는 검은색 외피를 갖고 있는 청자콩, 다원콩, 선흑콩 및 검정콩4호가 L값은 53.05~63.23, a값은 3.18~5.85 및 b값은 3.28~6.02로 다른 품종들에 비해 L값은 감소하였고 a값은 증가하였다. 두부의 hardness, cohesiveness, elasticity는 품종에 따라 각각 537.36~1696.05 g, 0.20~0.37 및 2.27~3.76으로 차이를 보였다. 두부의 calcium 함량은 0.586~1.488 ㎎/g 범위였으며, oxalate 함량은 0.01~0.40 mg/g 범위에서 검정콩4호로 조제된 두부가 가장 높은 함량을 나타내었고 phytate는 0.01~0.41 ㎎/g으로 다원콩으로 만든 두부가 가장 높은 함량을 나타내었다. 콩에서 두부로의 oxalate 및 phytate의 전이율은 각각 0.31~19.70 및 0.41~19.70%로 나타났다. 따라서 국산 장려콩을 이용하여 두부를 제조할 경우 phytate의 전이율이 높고 oxalate의 전이율이 낮은 한남콩, 다원콩 및 보광콩이 좋을 것으로 생각된다. This study was conducted to investigate the changes of mineral, oxalate and phytate during tofu processing with Korean recommended soybean cultivars. Fourteen cultivars were selected by distribution of calcium, oxalate and phytate contents. Tofu was manufactured and analyzed for quality characteristics, mineral, oxalate and phytate contents. The yield and moisture contents of tofu ranged from 137.77% in Anpyeongkong to 201.91% of Geomjeongkong 4, and 74.42 (Bongeuikong)~80.01% (Hojangkong), respectively. The lightness (L-value), redness (a-value) and yellowness (b-value) ranged from 53.05 (Dawonkong) to 86.16 (Jipumkong 2), -2.04~5.85, and from 3.28 in Geomjeongkong 4 to 16.17 of Cheongjakong, respectively. The hardness of tofu with selected soybean cultivar ranged from 537.36 g (Dongpuktae) to 1696.05 g (Jinpumkong 2). The highest calcium content was 1.488 ㎎/g in Dawonkong, oxalate and phytate in tofu were high at 0.40 ㎎/g in Geomjeongkong 4 and 0.41 ㎎/g in Dawonkong, respectively. The transfer ratios of oxalate and phytate from soybean to tofu were ranged from 0.31~19.70 and 0.41~19.70%, respectively.
국산 콩 장려품종의 Minerals, Oxalate 및 Phytate 함량
김기찬(Ki Chan Kim),황인국(In-Guk Hwang),윤건묵(Gun Mook Yoon),송항림(Hang Lin Song),김홍식(Hong Sig Kim),장금일(Keum Il Jang),정헌상(Heon Sang Jeong) 한국식품영양과학회 2009 한국식품영양과학회지 Vol.38 No.7
본 연구는 국산 113종 콩 장려품종의 total oxalate(Ox), phytate(InsP?)와 calcium(Ca), magnesium(Mg), sodium(Na), zinc(Zn), potassium(K)을 분석하여 옥살산칼슘 결정 생성을 최소화할 수 있는 품종의 선발 및 안전한 콩 가공식품 제조를 위한 자료를 제시하고자 하였다. 113종의 콩 장려품종에서 Ca과 Mg 함량 분포는 각각 0.586~3.177과 0.559~3.085 ㎎/g이었으며, Ca는 다올콩은 3.177 ㎎/g으로 가장 높았고, Mg는 선흑콩은 3.085 ㎎/g으로 가장 높은 함량을 보였다. Ca과 Mg 사이에서 품종간 유의적인 차이가 나타나지 않았다. Ox와 InsP? 함량 분포는 각각 1.24(선흑콩)~3.81(다원콩)과 0.43(만리콩)~4.72(다기콩) ㎎/g 범위이었고, 옥살산칼슘 결정의 저해물질인 InsP?의 함량이 Ox의 함량보다 상대적으로 높은 함량 분포로 존재하였다. 또한 Ca, Mg, Ox 및 InsP? 함량 사이의 교차상관관계분석을 통해 Ca과 InsP? 함량이 Ox 함량보다 높은 선흑콩과 단미2가 옥살 산칼슘 생성의 잠재적 위험성을 최소화할 수 있는 품종으로 판단되었다. This study was conducted to select the soybean cultivar to minimize the formation of calcium oxalate, and investigate the ingredients for total oxalate (Ox), phytate (InsP?) and minerals such as calcium (Ca), magnesium (Mg), sodium (Na), zinc (Zn), and potassium (K) in 113 recommended soybean cultivars in Korea. Ca content ranged from 0.586 ㎎/g in Saealkong to 3.177 ㎎/g in Daolkong, and Mg content ranged from 0.559 ㎎/g in Taekwankong to 3.085 ㎎/g of dry seed in Seonheukkong. The total oxalate content ranged from 1.24 ㎎/g in Seonheukkong to 3.81 ㎎/g in Ilmikong, and InsP? content ranged from 0.43 ㎎/g in Mailikong to 4.72 ㎎/g of dry seed in Dagikong. In the cross-correlation analysis for the contents of Ca, Mg, Ox and InsP?, Seonheukkong and Danmi2 were selected to minimize the formation of calcium oxalate because the contents of Ca and InsP? were much higher than the content of Ox. These cultivars could be useful for producing soy foods beneficial to populations at risk for calcium oxalate kidney stones and for improved mineral bioavailability.
Lee Dongjoon,Park Jong-Chan,Jung Keum Sim,Kim Jiyeong,Jang Ji Sung,Kwon Sunghoon,Byun Min Soo,Yi Dahyun,Byeon Gihwan,Jung Gijung,Kim Yu Kyeong,Lee Dong Young,Han Sun-Ho,Mook-Jung Inhee 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-
The deposition of beta-amyloid (Aβ) in the brain precedes the onset of symptoms such as cognitive impairment in Alzheimer’s disease (AD); therefore, the early detection of Aβ accumulation is crucial. We previously reported the applicability of the QPLEXTM Alz plus assay kit for the prescreening of Aβ accumulation. Here, we tested the specific application of the kit in a large cohort of cognitively normal (CN) individuals of varying ages for the early detection of Aβ accumulation. We included a total of 221 CN participants with or without brain Aβ. The QPLEXTM biomarkers were characterized based on age groups (1st–3rd tertile) and across various brain regions with cerebral amyloid deposition. The 3rd tertile group (>65 years) was found to be the most suitable age group for the application of our assay kit. Receiver operating characteristic curve analysis showed that the area under the curve (AUC, discrimination power) was 0.878 with 69.7% sensitivity and 98.4% specificity in the 3rd tertile group. Additionally, specific correlations between biomarkers and cerebral amyloid deposition in four different brain regions revealed an overall correlation with general amyloid deposition, consistent with previous findings. Furthermore, the combinational panel with plasma Aβ1–42 levels maximized the discrimination efficiency and achieved an AUC of 0.921 with 95.7% sensitivity and 67.3% specificity. Thus, we suggest that the QPLEXTM Alz plus assay is useful for prescreening brain Aβ levels in CN individuals, especially those aged >65 years, to prevent disease progression via the early detection of disease initiation.