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 : Patr?cia Valente (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Isabel F. Almeida,Eduarda Fernandes,José L.F.C. Lima,Patrícia Valentão,Paula B. Andrade,Rosa M. Seabra,P.C. Costa,M.F. Bahia 한국식품영양과학회 2009 Journal of medicinal food Vol.12 No.1
Eucalyptus globulus Labill. (Family Myrtaceae) is a plant of Australian origin, with a reported therapeutic use in airway inflammatory diseases. Considering that reactive oxygen species (ROS) and reactive nitrogen species (RNS) have been implicated in the pathogenesis of airway inflammatory diseases such as asthma and chronic obstructive pulmonary disease, an effective scavenging activity against these reactive species may contribute for the therapeutic effect of this plant. In the present study, a water extract of E. globulus leaves was evaluated for its putative in vitro scavenging effects on ROS (HO·, O2·−, ROO·, and H2O2) and RNS (·NO and ONOO−) and on 2,2-diphenyl-1-picrylhydrazyl radical (DPPH). Qualitative and quantitative analyses of the extract's phenolic composition were also performed. The Eucalyptus leaf water extract presented a remarkable capacity to scavenge all the reactive species tested, with all the 50% inhibitory concentrations being found at the μg/mL level. Phytochemical analysis showed the presence of polyphenols such as flavonoids (rutin and quercitrin) and phenolic acids (chlorogenic acid and ellagic acid), which may be partially responsible for the observed antioxidant activity. These observations provide further support, beyond the well-known antibacterial and antiviral activities of the Eucalyptus plant, for its reported use in traditional medicine such as in the treatment of airway inflammatory diseases, considering the important role of ROS and RNS in the inflammatory process, although further studies are needed to prove the bioavailability of the antioxidants/antibacterial compounds of the extract as well as the ability of the active compounds to reach specific tissues and to act in them.
-
Paula Mattanna,Priscila Dallé da Rosa,Ana Paula Gusso,Neila S. P. S. Richards,Patrícia Valente 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.6
Microbial oils enriched in essential polyunsaturatedfatty acids can be used as nutritionalcomplements. In order to improve the lipid yields and lipidprofiles of 2 Yarrowia lipolytica strains, the effects ofmedium components and culture conditions were investigatedusing shake flasks. Under optimized conditions (cultivationfor 3 days at 25ºC and 150 rpm, using peptone as anitrogen source and glucose as a carbon source), thebiomass, lipid yield, and lipid content reached 6.75 g/L,3.48 g/L, and 51.55% for Y. lipolytica QU22, and 6.85 g/L,3.52 g/L, and 51.38% for Y. lipolytica QU137, respectively. Using a shaking speed of 150 rpm, unsaturated fatty acidsconstituted 87.96% (QU22) and 87.08% (QU137) of thetotal lipids produced by these strains, with 9.52 and 7.86%of alpha-linolenic acid, respectively. The strains are suitablecandidates for fermentation processes involving essentialpolyunsaturated fatty acid (PUFA) production.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
