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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2025年底，西延高铁开通，复兴号开到宝塔山下，延安苹果坐上高铁。“客户来果园实地看果品，成本大幅降低。”陕西洛川县果商杜王军说。