## 1 Introduction  
In recent years, researchers have focused on the development of new materials with a low detrimental impact on the environment, due to the increasing growth of the world's population and pollution. Green polymers are becoming more widely used to achieve the requisite biodegradability. Poly(lactic acid) (PLA) is a biodegradable, recyclable polyester made from renewable feedstock, that is nowadays one of the most promising polymers for commercially replacing poly(styrene) (PS), poly(ethylene terephthalalate) (PET), high-density poly(ethylene) (HDPE), and low-density poly(ethylene) (LDPE). Lactic acid is produced as a raw material by fermenting glucose or sucrose and is refined to high purity. PLA has been used in food packaging, textiles, and, more recently, engineering plastics and currently is a niche product with significant growth potential [1; 2; 3; 4; 5; 6]. PLA production represented 10.3% of the global bioplastics production capacity in 2018, reaching almost 220,000 tons/year, with a growth rate of around 60% expected by 2023 [7]. Electrospinning is a promising method for spinning polymer solutions or melts that can be easily scaled up with the use of strong electric fields. The approach is based on the assumption that in a charged polymer solution, strong electrical forces overwhelm weak surface tension forces. A high voltage is used to eject an electrically charged polymer solution jet from the tip (Taylor cone) of a capillary tube and uniformly scatter it over the collecting substrate. Jet then flows in the direction of the external electrical field, elongating as the external and internal electrical fields interact. The jet is sprayed onto a nonwoven mat-like substrate at random. This approach works with synthetic and natural polymers that have been processed to produce fibers with diameters ranging from a few nanometers to several microns [8; 9; 10; 11; 12; 13]. Electrospun fibers have sparked a lot of attention due to the ease of fabricating multifunctional materials for usage in a variety of applications such as biomedical, textile, food packaging, batteries, and filters. Especially, electrospun fibers provide a unique opportunity for biomedical applications since they combine biocompatibility with micro-/nanoscale fiber architecture. These days, researchers are more focused on the development of biomaterials that reduce the risk of disease transmission and infection spread. The demand for novel antimicrobial materials is growing [14; 15; 16; 17; 18; 19; 20]. Natural bioactive agents have been used in biomedical due to their significant contribution since ancient times. Lately, the use of natural compounds such as plant extracts [21; 22; 23], bee products [24; 25; 26], and oils [27; 28; 29] for developing electrospun fibrous materials in biomedical applications has been studied extensively. _Hypericum perforatum_, a member of the _Hypericaceae_ family, has long been regarded as a valuable herbal medicine. Flavonoids, hyperforin, and hypericin are all found in this plant. _Hypericum perforatum_ oil (HPO) has long been used topically and orally as a home remedy to treat cuts, burns, depression, hemorrhoids, diabetes, and gastrointestinal ulcers [30; 31; 32; 33]. Various articles have been written about the extraordinary properties of electrospun materials containing _Hypericum perforatum_. Poly(\(\varepsilon\)-caprolactone) (PCL) nanofiber wound dressings containing alcoholic extract of _Hypericum perforatum_ have been produced [34]. A nanofiber wound dressing containing _Hypericum perforatum_ extract was developed using poly(lactic-co-glycolic acid) (PLGA) [35]. _Hypericum perforatum_ oil loaded-poly(ethylene glycol) (PEG) based nanofiber material was produced [36]. The developments of thermoplastic polyurethane (TPU) electrospun mats containing _Hypericum perforatum_ extract have been researched and its antibacterial property evaluated [37].