IDENTIFIKASI SENYAWA MYCOSPORINE-LIKE AMINO ACIDs DARI FRAKSI ETANOL Eucheuma cottonii MENGGUNAKAN SPEKTROFOTOMETER UV
نویسندگان
چکیده
منابع مشابه
Cinnamic Acid Derivate From the Bark of Lerchea bracteata Val
Penyelidikan kandungan kimia dari batang tumbuhan Lerchea brateata Val telah dilakukan dan berhasil mendapatkan senyawa asam 3,4-dihidroksisinamatmetil ester yang diisolasi dari fraksi etil asetat menggunakan metoda kromatografi. Senyawa ini dimurnikan melalui proses rekristalisasi dan berbentuk kristal kekuningan dan meleleh pada 162-163 o C. Struktur dielusidasi melalui interprestasi spektrum...
متن کاملMycosporine-like amino acids from coral dinoflagellates.
Coral reefs are one of the most important marine ecosystems, providing habitat for approximately a quarter of all marine organisms. Within the foundation of this ecosystem, reef-building corals form mutualistic symbioses with unicellular photosynthetic dinoflagellates of the genus Symbiodinium. Exposure to UV radiation (UVR) (280 to 400 nm) especially when combined with thermal stress has been ...
متن کاملMycosporine-like amino acids (MAAs): chemical structure, biosynthesis and significance as UV-absorbing/screening compounds.
Continuous depletion of the stratospheric ozone layer has resulted in an increase in ultraviolet-B (UV-B; 280-315 nm) radiation on the earth's surface which inhibits photochemical and photobiological processes. However, certain photosynthetic organisms have evolved mechanisms to counteract the toxicity of ultraviolet or high photosynthetically active radiation by synthesizing the UV-absorbing/s...
متن کاملMycosporine-like amino acids in the marine red alga Gracilaria cornea — effects of UV and heat
Ultraviolet (UV)-absorbing mycosporine-like amino acids (MAAs) were separated from a marine red alga Gracilaria cornea using HPLC. The isolated MAAs were identified as porphyra-334 and/or shinorine by comparing them with various standards. No in vivo induction of MAAs was detected in G. cornea even when the organism was grown for 4–5 days either in the presence of UV-A and UV-B only or in combi...
متن کاملMycosporine-like amino acids in planktonic organisms living under different UV exposure conditions in Patagonian lakes.
Mycosporine-like amino acids (MAAs) were studied in zooplankton from 13 Argentinian lakes covering a broad range in altitude, maximum depth and physico-chemical properties of the water. Four to nine different MAAs (predominantly porphyra-334 and shinorine) were found in the copepods Boeckella gibbosa, B. gracilipes, B. meteoris and Parabroteas sarsi, and in the ciliate Stentor amethystinus, whi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Majalah Farmasi dan Farmakologi
سال: 2018
ISSN: 2655-6715,1410-7031
DOI: 10.20956/mff.v22i2.5700