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RISS 인기검색어
- 검색키워드
- 저자 : ( Qin Xiaoning ) (검색결과 3 건)
- 무료
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- 유료
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Preparation and Antioxidant Activities of High Fischer’s Ratio Oligopeptides from Goat Whey
Yusi Qin,Ming Cheng,Xiaoxue Fan,Xiaoqing Shao,Cunfang Wang,Hua Jiang,Xiaoning Zhang 한국축산식품학회 2022 한국축산식품학회지 Vol.42 No.5
This study aimed to obtain high Fischer’s ratio oligopeptides from goat whey (HFO) and investigate antioxidant property of it. Hydrolysis of goat whey was done with the approach of sequential digestion of pepsin and flavourzyme. With the adsorption of aromatic amino acids by activated carbon, HFO with a Fischer’s ratio of 27.070 and a molecular weight of 200–1,000 Da were obtained, and the branched-chain amino acids accounted for 22.87%. Then the antioxidant activity of HFO was evaluated. At the concentrations of 2.0 mg/mL and 0.50 mg/mL, HFO scavenged 77.27% and 99.63% of 1,1- diphenyl-2-picrylhydrazyl and 3-ethylbenzthiazoline-6-sulphonate free radicals respectively. The scavenging rate of HFO against hydroxyl radicals reached 92.31% at the concentration of 0.25 mg/mL. Animal experiments demonstrated that HFO could moderate the changes of malondialdehyde, superoxide dismutase and glutathione peroxidase caused by CCl4- induced oxidative stress in vivo. This study indicated that HFO from goat whey was capable of oxidation resistance both in vivo and in vitro, which provided a scientific basis for the high-value processing and application of goat milk whey.
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침출수 조절에 영향을 미치는 폐기물 구성과 매립지 운영 : 열대지역 조건에서 모형매립조 실험
( Chettiyappan Visvanathan ),( Josef Tränkler ),( Periyathamby Kumparan ),( Qin Xiaoning ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
남쪽과 남동아시아에서, 고형폐기물의 90%이상은 공공연히 투기되어 진다. 이러한 지역의 특별한 기후조건을 고려한다면, 공학적인 위생 매립지와 투기사이의 변화가 가능한 발전된 설계와, 운영이 간단한 매립지가 필요하다. 이러한 조사는 매립가스의 발생과 침출수 조절, 전처리, 폐기물 분리에 따른 포괄적인 조사가 필요하다. 본 논문에서는 열대기후조건 하에서 우선적으로 실험적 6개의 모형매립조의 결과를 제시한다. 이러한 모형매립조는 다른 전처리의 폐기물, 운영되는 배열, 최상 복토층을 평가한다. 건조하고 습한 기후조건 하에서 모형매립조 측정은 폐기물 전처리와 침출수 발생에 중대한 영향을 미치는 운영체계와 매립지 안정화 비율을 나타낸다. In South and South East Asia more than 90 % of solid waste is disposed of in open dumps. Considering this region’s specific climatic conditions, it is necessary to develop strategies to design and operate simple landfills, which are in-transition between dumpsite and engineered sanitary landfill. This approach demands comprehensive research on waste segregation, pre-treatment, control of leachate and landfill gas generation. This paper presents the primary experimental findings of six lysimeters operated under tropical climatic conditions. In these lysimeters, wastes with different pre-treatment, operational arrangement and top cover designs were evaluated. The lysimeter observation consisting of dry and wet climatic conditions reveals that waste pretreatment and operational mode play a significant role in leachate generation rate, and landfill settlement rate.
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( Chettiyappan Visvanathan ),( Josef Tränkler ),( Periyathamby Kuruparan ),( Qin Xiaoning ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
In South and South East Asia more than 90 % of solid waste is disposed of in open dumps. Considering this legion’s specific climatic conditions, it is necessary to develop strategies to design and operate simple landfills, which are in-transition between dumpsite and engineered sanitary landfill. This approach demands comprehensive research on waste segregation, pre-treatment, control of leachate and landfill gas generation. This paper presents the primary experimental findings of six lysimeters operated under tropical climatic conditions. In these lysimeters, wastes with different pre-treatment, operational arrangement and top cover designs were evaluated. The lysimeter observation consisting of dry and wet climatic conditions reveals that waste pretreatment and operational mode play a significant role in leachate generation rate, and landfill settlement rate.
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