###### Abstract
Another recent comparative study through cradle-to-gate LCA was performed by [PERSON] et al. [10]. They assessed and compared limonene plasticized poly(lactic acid) (PLA) films containing cellulose nanocrystals (CNC) from _Phornium tenax_ leaf fibers with acetyl tributyl citrate (ATBC) plasticized PLA films containing organo-modified montmorillonite (OMMT). The environmental impact of PLA/limonene film reinforced with 1% in weight of CNC (PLA/CNC/limonene) was comparable to the environmental impact of PLA films reinforced with OMMT and plasticized with a petroleum-based plasticizer (ATBC; PLA/OMTT/ATBC). Concerning biocomposite materials for packaging products, most LCA studies were performed for specific packaging products and applied the cradle-to-grave approach. [PERSON] et al. [12], for instance, analyzed mango packaging made from polyethylene (PE)/natural fiber composites and compared its environmental performance with an identical cardboard packaging. Two different scenarios were developed based on the assumption of Brazil and Europe's location of usage. With consideration of no reuse of the packaging, the results showed that most of the environmental impacts were lower for the cardboard packaging because of the higher electricity input and higher fuel consumption for the transportation of the heavier composite packaging. In contrast, [PERSON] et al. [13] studied the environmental impact assessment of PLA active packaging to the commonly used polyethylene terephthalate or PET. The LCA results indicated that PLA packaging with nano-clays had the highest environmental performance and presented the best approach to prevent microbial growth. In a more recent work, [PERSON] et al. [9] performed an environmental assessment on meat trays made of nine different packaging materials. The materials analyzed were PS-based trays (extruded polystyrene and extruded polystyrene with a five-layered structure containing ethylene vinyl alcohol), PET-based trays (recycled polyethylene terephthalate, with and without polyethylene layer, and amorphous polyethylene terephthalate), polypropylene (PP), and polylactic acid (PLA). The results indicated that PS-based trays, especially the mono-material solutions made of extruded polystyrene, generated the lowest environmental impact across all categories, except resource depletion. The overall results were dominated by the production process, but it was also acknowledged that the end-of-life scenario affected the environmental performance. Apart from studies on the environmental performance of products realized from biobased materials compared with the conventional ones, there are also works utilizing LCA to analyze impacts generated and to identify environmental damage and hotspots. [PERSON] et al. [11] reported an LCA application that highlighted the related environmental criticalities and potential indicators in the production of foamy 1 kg polylactic acid (PLA) trays for -fresh food packaging applications. They concluded that the highest environmental impacts came from the production, mainly due to the corn cultivation phase and transportation of the granules to the tray manufacturing factory due to the extensive distance travelled (from America to Italy) and the methods utilized. It was emphasized that the transportation of the PLA-trays was the source of the high environmental impacts. In addition to the reviewed works above, it is also noteworthy to point out that the LCA method is also utilized in design and optimization topics. It can be a design tool to help companies to be entirely aware of the environmental consequences of their actions and decisions in developing a product. From these aspects, LCA would be an invaluable decision-support tool for stakeholders like researchers, manufacturers, policy-makers, and company owners [11]. Environmentally sustainable design is an approach to designing products that consider and integrate the impacts on the environment of the product system, even before its development phase.