New Aspects of Biomass Waste Valorization: Spruce Bark Crude Extracts as Plant Growth Regulators
2018; North Carolina State University; Volume: 13; Issue: 2 Linguagem: Inglês
10.15376/biores.13.2.3994-4007
ISSN1930-2126
AutoresCorneliu Tănase, Adina Iulia Talmaciu, Iuliana Csilla Bâra, Irina Boz, Irina Volf, Silvia Oroian, Valentin Popa,
Tópico(s)Bioenergy crop production and management
ResumoThe effects of spruce bark crude extracts were evaluated relative to basil (Ocimum basilicum L.) plantlet development and metabolic processes (cellular division and histo-anatomical modification) involved in breeding. Natural phenolic compounds were separated as crude extracts by conventional and green extraction techniques, in a primary biorefining process, from Picea abies L. waste bark. First, the influence of phenolic compounds, in different concentrations, on the basil plants' main biosynthetic processes was analyzed. The mitotic indices and chromosomal aberrations of the plantlets were monitored. There was a significantly positive action of the studied bioproducts on basil root and stem growth, biomass accumulation, and photo-assimilating pigment synthesis. The natural polyphenols triggered an intensification of metabolic processes and cell division, yielding a high mitotic index and good development of vascular bundles. The results supported the possibility of exploiting spruce bark wastes by conversion into valuable bio-compounds, with uses as innovative products in green biotechnology, as simple growth bioregulators, for example, or for biotech crops.
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