Evidence item

The 1.6% figure is a method-specific estimate whose extraction protocol captures only a fraction of total EPS and therefore likely underestimates total EPS contribution. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 14275

Source: Continental-scale drivers of soil microbial extracellular polymeric substances · locator {} · excerpt hash sha256:15d4bf3dc24b5c98bce2691efdacf4aa9209b1598e5b9017753c2f5e4cdf1821

EPS-C contributed 0.3–3.9% to the SOC, with average contributions of 1.6 ± 0.1%. ... these values are clearly underestimates, because the gentle CER extraction ... extracts 1/2 to 1/20 of total EPS polysaccharides.