Far-red dependent changes in the chemical composition of Spirulina platensis
PBN-AR
Instytucja
Instytut Agrofizyki im. Bohdana Dobrzańskiego Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
ENGINEERING IN LIFE SCIENCES
ISSN
1618-0240
EISSN
1618-2863
Wydawca
WILEY-BLACKWELL
DOI
URL
Rok publikacji
2016
Numer zeszytu
8
Strony od-do
777-785
Numer tomu
16
Identyfikator DOI
Liczba arkuszy
Autorzy
(liczba autorów: 5)
Pozostali autorzy
+ 4
Słowa kluczowe
en
Emission fluorescence spectra
Phenols
Raman spectroscopy
Spirulina platensis
Streszczenia
Język
en
Treść
The influence of far-red light (FRL) was studied on the chemical composition of Spirulina platensis biomass. The following light compositions were used during the culture white light, blue-red LED light (BRL) and BRL supplemented with FRL (BRFRL). Chlorophyll and phenol contents were measured by spectrophotometric methods, whereas presence of carotenoids, lipids, and phycobiliproteins were es- timated by Fourier-transform Raman spectrometry. Additionally, phenol content was investigated by fluorescence intensity of algae culture in the range of 430–650 nm. The content of chlorophyll and phenols in algae cells depended on the spectral composition of light and was the highest under BRL (16.7 ± 0.5 and 9.1 ± 0.6, respectively). It was shown that there is a positive linear correlation (R = 0.902 at p < 0.0000001) between the ratio of relative fluorescence intensity of S. platensis suspensions at 450 nm to the suspensions at 540 nm (F450/F540) and the content of phenolic compounds in the biomass. Changes in the F450/F540 ratio can explain approximately 80% changes of phenol contents in algae cells. Spirulina platensis Raman spectra demonstrated that the biomass of algae growing under white light and BRL had a significantly higher intensity of phycobiliprotein bands than the algae growing under BRFRL.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
767316
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