In the specific case of extractive biotechnology, laser irradiation is used in the purpose of intensifying (bio)chemical reactions and biomass accumulation in medium, of intensifying heat and mass-exchange processes in medium, of modifying the structure of macromolecules in organic matter, of increasing the amount of specific compounds in the final extract (e.g., polysaccharides, proteins, enzymes, phenolics, minerals and micro-elements, etc. ), as well as to obtain antimicrobial effects [4]. Food and waste recovery industries also are two major beneficiaries of laser effects. According to the data reported, laser pre-treatment of (citrus) fruits results in \"an increase in pectin yield, gel strength and purity, at an insignificant reduction of molecular weight and degree of esterification\"; also, mechanical, laser ablation effect allows the preservation of the naturalness, freshness, textures, but mostly the organoleptic and nutritive properties of the food [5]; processing waste from fish and seafood [4] are other examples of laser usefulness to obtain circular bio-economy. Furthermore, some recent studies [6] have demonstrated that laser radiation at 532 nm induces chemical changes in the structure of phenylpropanoids from lignin. The punctual changes in lignin structure have been proved by Raman spectroscopy on sections of spruce trees (wood sections from _Picea abies_ L. Karst, _Pinus sylvestris L., _Arabidopsis thaliana_ L., and _Populus alba_ L.). As known, lignin is a polymeric structure (Figure 1, [6]) composed of several repetitive phenolic units in the category of phenylpropanoids (also known as magnolignols), precisely para-couamyl alcohol, coniferyl alcohol, and synapilic alcohol. By binding the second component in the vegetal cell wall namely hemicellulose, lignin polymer allows impermeability, but water circulation in green plants, the shape of the vegetal cell wall, cell resistance, and plant indigestibility, thus allowing their protection against fungus, insects, and herbivores attack [7]. Specifically, laser studies on lignin polymer [6] have been done for three laser powers (10, 20, and 30 mW) and three exposure times (0.04, 0.13, and 1.03 s/s); the Raman changes in the spectrum (1600/1600 cm\({}^{-1}\)) of lignin monolignols (e.g., coniferyl alcohol and coniferyl aldehyde, sinapyl alcohol and sinapyl aldehyde, cinnamyl alcohol, isoeugenol and abietin) were then monitored, by time series experiments with an accumulative exposure time of 0.04 s for the three laser powers used. The obtained results [6] indicated that laser radiation at 532 nm acts on the aromatic rings with two OH-groups in lignin polymer; punctually, laser irradiation at 532 nm resulted in double bonds stretching (C=O and C=C) of aldehydes and ethenyl moieties in lignin monolignols, particularly reflected on the OH-groups in coniferyl alcohol. Moreover, studies have proved that laser effects occur in aqueous solvent only, and not in alcoholic or acetone solvents, and the laser power of 35 mW had no oxidative effects on the wood. This way, a weakening of forces between the components in the vegetal cell wall is to be expected, in the same time the increase of the accessibility of secondary metabolites in the aqueous extracts exposed to the laser radiation at 532 nm. The applications of potential disintegrative effects of laser radiation upon lignin are tremendous since cellulose and lignin are two bio-products of huge importance in the worldwide economy, being the main sources of paper, viscose, and numerous lignin bio-based products [8]. As known, lignin is an undesirable product in the processing stages of the wood material to obtain paper and viscose fibers, being the subject of so-called recalcitrance of the lignocellulosic biomass [9] caused by the heterogeneous multi-scale structure of the plant cell walls [10]. At the same time, lignin is an important bio-product for biotechnology and pharmaceutical chemistry, being the basis of many chemicals and plastic substitutes from renewable sources [8].