{"product_id":"bg11-broth","title":"BG11 Broth","description":"\u003ch3 data-start=\"388\" data-end=\"402\"\u003eBG11 Broth\u003c\/h3\u003e\n\u003cp data-start=\"404\" data-end=\"480\"\u003eChemically Defined Medium for Axenic Cultivation of Freshwater Cyanobacteria\u003c\/p\u003e\n\u003cp data-start=\"482\" data-end=\"509\"\u003eCatalog Number: \u003cstrong data-start=\"498\" data-end=\"509\"\u003eAS-1137\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"511\" data-end=\"514\"\u003e\n\u003ch4 data-start=\"516\" data-end=\"529\"\u003eOverview\u003c\/h4\u003e\n\u003cp data-start=\"531\" data-end=\"915\"\u003eBG11 Broth is a \u003cstrong data-start=\"547\" data-end=\"591\"\u003echemically defined liquid culture medium\u003c\/strong\u003e universally accepted for the \u003cstrong data-start=\"621\" data-end=\"671\"\u003eaxenic cultivation of freshwater cyanobacteria\u003c\/strong\u003e and selected unicellular green algae. Originally formulated by Stanier and colleagues and subsequently standardised in international methods, BG11 remains the \u003cstrong data-start=\"831\" data-end=\"865\"\u003egold-standard reference medium\u003c\/strong\u003e in phycology, biotechnology, and aquatic ecology.\u003c\/p\u003e\n\u003cp data-start=\"917\" data-end=\"1278\"\u003eThe medium is optimised for photoautotrophic growth, using \u003cstrong data-start=\"976\" data-end=\"1015\"\u003enitrate as the sole nitrogen source\u003c\/strong\u003e, no combined organic carbon, and carefully balanced trace metals. It is widely used for cultivation of genera such as \u003cem data-start=\"1134\" data-end=\"1149\"\u003eSynechococcus\u003c\/em\u003e, \u003cem data-start=\"1151\" data-end=\"1161\"\u003eAnabaena\u003c\/em\u003e, \u003cem data-start=\"1163\" data-end=\"1171\"\u003eNostoc\u003c\/em\u003e, \u003cem data-start=\"1173\" data-end=\"1186\"\u003eMicrocystis\u003c\/em\u003e, and \u003cem data-start=\"1192\" data-end=\"1203\"\u003eSpirulina\u003c\/em\u003e, as well as for cyanobacterial genomics, physiology, and toxicity testing.\u003c\/p\u003e\n\u003chr data-start=\"1280\" data-end=\"1283\"\u003e\n\u003ch4 data-start=\"1285\" data-end=\"1313\"\u003eKey Features \u0026amp; Benefits\u003c\/h4\u003e\n\u003cul data-start=\"1315\" data-end=\"1626\"\u003e\n\u003cli data-start=\"1315\" data-end=\"1374\"\u003e\n\u003cp data-start=\"1317\" data-end=\"1374\"\u003eChemically defined formulation for reproducible results\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1375\" data-end=\"1444\"\u003e\n\u003cp data-start=\"1377\" data-end=\"1444\"\u003eNitrate as sole nitrogen source (ideal for non-N₂-fixing strains)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1445\" data-end=\"1500\"\u003e\n\u003cp data-start=\"1447\" data-end=\"1500\"\u003eNo organic carbon; strictly photoautotrophic growth\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1501\" data-end=\"1557\"\u003e\n\u003cp data-start=\"1503\" data-end=\"1557\"\u003eOptimised trace metals for cyanobacterial metabolism\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1626\"\u003e\n\u003cp data-start=\"1560\" data-end=\"1626\"\u003eTransparent medium for photosynthesis and light-response studies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1628\" data-end=\"1631\"\u003e\n\u003ch4 data-start=\"1633\" data-end=\"1658\"\u003eTypical Applications\u003c\/h4\u003e\n\u003cp data-start=\"1660\" data-end=\"1688\"\u003ePhycology \u0026amp; Algal Research\u003c\/p\u003e\n\u003cul data-start=\"1689\" data-end=\"1834\"\u003e\n\u003cli data-start=\"1689\" data-end=\"1735\"\u003e\n\u003cp data-start=\"1691\" data-end=\"1735\"\u003eAxenic culture of freshwater cyanobacteria\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1736\" data-end=\"1834\"\u003e\n\u003cp data-start=\"1738\" data-end=\"1834\"\u003eGrowth of reference strains such as \u003cem data-start=\"1774\" data-end=\"1799\"\u003eSynechococcus elongatus\u003c\/em\u003e PCC 7942 and \u003cem data-start=\"1813\" data-end=\"1823\"\u003eAnabaena\u003c\/em\u003e PCC 7120\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1836\" data-end=\"1870\"\u003eBiotechnology \u0026amp; Applied Research\u003c\/p\u003e\n\u003cul data-start=\"1871\" data-end=\"1954\"\u003e\n\u003cli data-start=\"1871\" data-end=\"1911\"\u003e\n\u003cp data-start=\"1873\" data-end=\"1911\"\u003eProduction of cyanobacterial biomass\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1912\" data-end=\"1954\"\u003e\n\u003cp data-start=\"1914\" data-end=\"1954\"\u003ePigment and bioactive compound studies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1956\" data-end=\"1995\"\u003eEnvironmental \u0026amp; Ecotoxicology Studies\u003c\/p\u003e\n\u003cul data-start=\"1996\" data-end=\"2106\"\u003e\n\u003cli data-start=\"1996\" data-end=\"2052\"\u003e\n\u003cp data-start=\"1998\" data-end=\"2052\"\u003eToxicity testing using cyanobacteria (e.g. OECD 201)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2053\" data-end=\"2106\"\u003e\n\u003cp data-start=\"2055\" data-end=\"2106\"\u003eEcophysiology and nutrient-limitation experiments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2108\" data-end=\"2131\"\u003eGenomics \u0026amp; Physiology\u003c\/p\u003e\n\u003cul data-start=\"2132\" data-end=\"2195\"\u003e\n\u003cli data-start=\"2132\" data-end=\"2195\"\u003e\n\u003cp data-start=\"2134\" data-end=\"2195\"\u003eReference medium for cyanobacterial genetics and metabolism\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2197\" data-end=\"2200\"\u003e\n\u003ch4 data-start=\"2202\" data-end=\"2230\"\u003ePrinciple of the Medium\u003c\/h4\u003e\n\u003cp data-start=\"2232\" data-end=\"2650\"\u003eBG11 Broth provides all essential inorganic nutrients required for cyanobacterial growth while excluding organic carbon sources. Growth is driven by \u003cstrong data-start=\"2381\" data-end=\"2399\"\u003ephotosynthesis\u003c\/strong\u003e, with nitrate supplying nitrogen and a low-phosphate background minimising precipitation and metabolic interference. A defined trace-metal system (A5) supports enzymatic and photosynthetic processes while maintaining clarity for optical measurements.\u003c\/p\u003e\n\u003chr data-start=\"2652\" data-end=\"2655\"\u003e\n\u003ch4 data-start=\"2657\" data-end=\"2695\"\u003eComposition (Typical – per litre)\u003c\/h4\u003e\n\u003cp data-start=\"2697\" data-end=\"2713\"\u003eMacronutrients\u003c\/p\u003e\n\u003cul data-start=\"2714\" data-end=\"2954\"\u003e\n\u003cli data-start=\"2714\" data-end=\"2747\"\u003e\n\u003cp data-start=\"2716\" data-end=\"2747\"\u003eSodium nitrate (NaNO₃): 1.5 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2748\" data-end=\"2806\"\u003e\n\u003cp data-start=\"2750\" data-end=\"2806\"\u003eDipotassium phosphate trihydrate (K₂HPO₄·3H₂O): 0.04 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2807\" data-end=\"2863\"\u003e\n\u003cp data-start=\"2809\" data-end=\"2863\"\u003eMagnesium sulfate heptahydrate (MgSO₄·7H₂O): 0.075 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2864\" data-end=\"2916\"\u003e\n\u003cp data-start=\"2866\" data-end=\"2916\"\u003eCalcium chloride dihydrate (CaCl₂·2H₂O): 0.036 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2917\" data-end=\"2954\"\u003e\n\u003cp data-start=\"2919\" data-end=\"2954\"\u003eSodium carbonate (Na₂CO₃): 0.02 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2956\" data-end=\"2974\"\u003eChelators \u0026amp; Iron\u003c\/p\u003e\n\u003cul data-start=\"2975\" data-end=\"3076\"\u003e\n\u003cli data-start=\"2975\" data-end=\"2999\"\u003e\n\u003cp data-start=\"2977\" data-end=\"2999\"\u003eCitric acid: 0.006 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3000\" data-end=\"3044\"\u003e\n\u003cp data-start=\"3002\" data-end=\"3044\"\u003eAmmonium ferric citrate (green): 0.006 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3045\" data-end=\"3076\"\u003e\n\u003cp data-start=\"3047\" data-end=\"3076\"\u003eEDTA disodium salt: 0.001 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3078\" data-end=\"3098\"\u003eTrace Metal Mix A5\u003c\/p\u003e\n\u003cul data-start=\"3099\" data-end=\"3128\"\u003e\n\u003cli data-start=\"3099\" data-end=\"3128\"\u003e\n\u003cp data-start=\"3101\" data-end=\"3128\"\u003eAdded at 1.0 mL per litre\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3130\" data-end=\"3171\"\u003eFinal pH after sterilisation: \u003cstrong data-start=\"3160\" data-end=\"3171\"\u003e7.4–7.6\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"3173\" data-end=\"3176\"\u003e\n\u003ch4 data-start=\"3178\" data-end=\"3242\"\u003eTrace Metal Mix A5 (Typical Composition – per litre of mix)\u003c\/h4\u003e\n\u003cul data-start=\"3244\" data-end=\"3548\"\u003e\n\u003cli data-start=\"3244\" data-end=\"3274\"\u003e\n\u003cp data-start=\"3246\" data-end=\"3274\"\u003eBoric acid (H₃BO₃): 2.86 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3275\" data-end=\"3331\"\u003e\n\u003cp data-start=\"3277\" data-end=\"3331\"\u003eManganese chloride tetrahydrate (MnCl₂·4H₂O): 1.81 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3332\" data-end=\"3383\"\u003e\n\u003cp data-start=\"3334\" data-end=\"3383\"\u003eZinc sulfate heptahydrate (ZnSO₄·7H₂O): 0.222 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3384\" data-end=\"3437\"\u003e\n\u003cp data-start=\"3386\" data-end=\"3437\"\u003eSodium molybdate dihydrate (Na₂MoO₄·2H₂O): 0.39 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3438\" data-end=\"3491\"\u003e\n\u003cp data-start=\"3440\" data-end=\"3491\"\u003eCopper sulfate pentahydrate (CuSO₄·5H₂O): 0.079 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3492\" data-end=\"3548\"\u003e\n\u003cp data-start=\"3494\" data-end=\"3548\"\u003eCobalt nitrate hexahydrate (Co(NO₃)₂·6H₂O): 0.0494 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3550\" data-end=\"3553\"\u003e\n\u003ch4 data-start=\"3555\" data-end=\"3581\"\u003ePreparation (Typical)\u003c\/h4\u003e\n\u003cul data-start=\"3583\" data-end=\"3926\"\u003e\n\u003cli data-start=\"3583\" data-end=\"3675\"\u003e\n\u003cp data-start=\"3585\" data-end=\"3675\"\u003eDissolve macronutrients and sodium carbonate in approximately \u003cstrong data-start=\"3647\" data-end=\"3657\"\u003e900 mL\u003c\/strong\u003e distilled water\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3676\" data-end=\"3714\"\u003e\n\u003cp data-start=\"3678\" data-end=\"3714\"\u003eAdd \u003cstrong data-start=\"3682\" data-end=\"3690\"\u003e1 mL\u003c\/strong\u003e of trace metal mix A5\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3715\" data-end=\"3761\"\u003e\n\u003cp data-start=\"3717\" data-end=\"3761\"\u003eAdjust volume to \u003cstrong data-start=\"3734\" data-end=\"3741\"\u003e1 L\u003c\/strong\u003e and pH to \u003cstrong data-start=\"3752\" data-end=\"3759\"\u003e7.5\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3762\" data-end=\"3804\"\u003e\n\u003cp data-start=\"3764\" data-end=\"3804\"\u003eDispense into suitable culture vessels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3805\" data-end=\"3926\"\u003e\n\u003cp data-start=\"3807\" data-end=\"3926\"\u003eSterilise by autoclaving at \u003cstrong data-start=\"3835\" data-end=\"3860\"\u003e121 °C for 15 minutes\u003c\/strong\u003e\u003cbr data-start=\"3860\" data-end=\"3863\"\u003e(Filter sterilisation may be used for heat-sensitive strains)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3928\" data-end=\"3931\"\u003e\n\u003ch4 data-start=\"3933\" data-end=\"3962\"\u003eVariants \u0026amp; Modifications\u003c\/h4\u003e\n\u003cul data-start=\"3964\" data-end=\"4089\"\u003e\n\u003cli data-start=\"3964\" data-end=\"4028\"\u003e\n\u003cp data-start=\"3966\" data-end=\"4028\"\u003e\u003cstrong data-start=\"3966\" data-end=\"3993\"\u003eBG11-N (Nitrogen-free):\u003c\/strong\u003e Omit NaNO₃ for N₂-fixing strains\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4029\" data-end=\"4089\"\u003e\n\u003cp data-start=\"4031\" data-end=\"4089\"\u003e\u003cstrong data-start=\"4031\" data-end=\"4057\"\u003eHigh-density cultures:\u003c\/strong\u003e Supplement with 2–5 mM NaHCO₃\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4091\" data-end=\"4094\"\u003e\n\u003ch4 data-start=\"4096\" data-end=\"4122\"\u003eIncubation Conditions\u003c\/h4\u003e\n\u003cul data-start=\"4124\" data-end=\"4283\"\u003e\n\u003cli data-start=\"4124\" data-end=\"4153\"\u003e\n\u003cp data-start=\"4126\" data-end=\"4153\"\u003eTemperature: \u003cstrong data-start=\"4139\" data-end=\"4151\"\u003e25–30 °C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4154\" data-end=\"4221\"\u003e\n\u003cp data-start=\"4156\" data-end=\"4221\"\u003eIllumination: \u003cstrong data-start=\"4170\" data-end=\"4201\"\u003e20–100 µmol photons m⁻² s⁻¹\u003c\/strong\u003e, continuous light\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4222\" data-end=\"4283\"\u003e\n\u003cp data-start=\"4224\" data-end=\"4283\"\u003eAgitation: Gentle shaking or aeration with air or air\/CO₂\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4285\" data-end=\"4288\"\u003e\n\u003ch4 data-start=\"4290\" data-end=\"4314\"\u003eStorage \u0026amp; Stability\u003c\/h4\u003e\n\u003cp data-start=\"4316\" data-end=\"4333\"\u003ePrepared medium\u003c\/p\u003e\n\u003cul data-start=\"4334\" data-end=\"4436\"\u003e\n\u003cli data-start=\"4334\" data-end=\"4379\"\u003e\n\u003cp data-start=\"4336\" data-end=\"4379\"\u003eStore at \u003cstrong data-start=\"4345\" data-end=\"4355\"\u003e2–8 °C\u003c\/strong\u003e, protected from light\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4380\" data-end=\"4436\"\u003e\n\u003cp data-start=\"4382\" data-end=\"4436\"\u003eUse within \u003cstrong data-start=\"4393\" data-end=\"4405\"\u003e3 months\u003c\/strong\u003e under recommended conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4438\" data-end=\"4441\"\u003e\n\u003ch4 data-start=\"4443\" data-end=\"4460\"\u003eIntended Use\u003c\/h4\u003e\n\u003cp data-start=\"4462\" data-end=\"4521\"\u003eFor \u003cstrong data-start=\"4466\" data-end=\"4520\"\u003elaboratory research and environmental studies only\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"4523\" data-end=\"4582\"\u003eNot for diagnostic, therapeutic, food, or agricultural use.\u003c\/p\u003e\n\u003chr data-start=\"4584\" data-end=\"4587\"\u003e\n\u003ch4 data-start=\"4589\" data-end=\"4614\"\u003eQuality \u0026amp; References\u003c\/h4\u003e\n\u003cul data-start=\"4616\" data-end=\"4918\"\u003e\n\u003cli data-start=\"4616\" data-end=\"4682\"\u003e\n\u003cp data-start=\"4618\" data-end=\"4682\"\u003eReference medium described by Stanier et al. and Rippka et al.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4683\" data-end=\"4756\"\u003e\n\u003cp data-start=\"4685\" data-end=\"4756\"\u003eWidely cited in \u003cstrong data-start=\"4701\" data-end=\"4714\"\u003eISO 10712\u003c\/strong\u003e, \u003cstrong data-start=\"4716\" data-end=\"4728\"\u003eOECD 201\u003c\/strong\u003e, and phycology literature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4757\" data-end=\"4823\"\u003e\n\u003cp data-start=\"4759\" data-end=\"4823\"\u003eManufactured under controlled conditions for batch consistency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4824\" data-end=\"4867\"\u003e\n\u003cp data-start=\"4826\" data-end=\"4867\"\u003eCertificate of Analysis (COA) available\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4868\" data-end=\"4918\"\u003e\n\u003cp data-start=\"4870\" data-end=\"4918\"\u003eSafety Data Sheet (SDS) available upon request\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ausamics Life Science","offers":[{"title":"100G","offer_id":48104087978239,"sku":"AS-1137-100G","price":75.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/1087\/0271\/files\/culturemedia_image_670abc29-030b-424b-8bb6-d36e9abfa54c.jpg?v=1771063020","url":"https:\/\/ausamics.com.au\/products\/bg11-broth","provider":"AuSaMicS","version":"1.0","type":"link"}