Virgin primary bioresources

Virgin primary bioresources are grown plants or animals mainly. Quantitatively, actually the most important primary bioresources are plants from minor importance are... 

For paper production different bioresource categories are used primary bioresources—virgin cellulose fibers from pulp mills secondary bioresources—recovered residues from paper processing industry quaternary bioresource—recovered paper fibers, e.g., wastepaper from households, industry, commerces, trade, offices, and administration. Primary, secondary, and quaternary bioresources together make around 89% of the raw... 

---