In some cases, alternative gelling agents might provide faster results. Researchers observed that bacterial cellulose and another bacterial polysaccharide, Eladium, allow a 50 percent increased growth rate for various bacteria and yeasts (as compared to their growth on agar), including higher biomass yields or faster detectable biofilm formation. However, both substances are still not as cheap and readily available as agar.
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此外，這份報告不僅在英國引起關注，國外也有人聲稱本國也出現復興。哈克特說，其他地方進行的「相似調查」也在「回頭引用」《安靜復興》報告。