Table 2 Effect of different carbon and nitrogen sources on EPS and IPS yield in submerged culture of C. cicadae

Carbon sources

 Mannitol

302.26 ± 3.82^c

144.71 ± 1.92^a

 Galactose

213.10 ± 2.29^c

141.13 ± 1.46^a

 Sucrose

335.12 ± 2.81^c

209.10 ± 2.11^b

 Glucose

354.22 ± 1.62^d

214.40 ± 2.18^b

 Maltose

247.19 ± 1.48^b

144.46 ± 1.46^a

 Fructose

211.34 ± 1.19^b

142.20 ± 2.31^a

Nitrogen source

 Yeast Extract

365.21 ± 3.82^d

215.16 ± 3.74^b

 Peptone

424.82 ± 2.39^c

264.19 ± 2.92^a

 NaNO₂

305.17 ± 2.12^c

148.15 ± 2.79^a

 (NH₄)₂SO₄

293.14 ± 2.15^c

124.12 ± 2.65^a

 L – Arginine HCL

254.33 ± 2.13^b

99.49 ± 2.16^a

 DL – Ascorbic Acid

206.19 ± 1.98^b

92.22 ± 2.11^a

Mineral Sources

 CaCl₂

231.17 ± 2.79^c

116.63 ± 2.12^a

 CoCl₂.6H₂O

242.16 ± 2.45^d

123.62 ± 1.98^b

 FeSO₄.7H₂O

264.13 ± 1.11^c

144.42 ± 2.09^a

 KH₂PO₄

313.31 ± 2.49^b

187.10 ± 2.36^a

 K₂HPO₄

275.21 ± 2.13^b

162.32 ± 2.18^a

 MnCl₂.6H₂O

210.26 ± 1.92^b

112.83 ± 2.90^a

C/N ratio

 40:1

111.15 ± 2.07^a

92.12 ± 2.13^a

 30:1

229.18 ± 2.32^c

142.16 ± 2.57^a

 20:1

243.94 ± 2.79^c

179.15 ± 2.36^a

 10:1

295.17 ± 2.15^c

232.11 ± 2.45^b

 5:1

274.17 ± 2.91^c

209.40 ± 1.99^b

 1:1

253.19 ± 2.64^c

185.16 ± 2.37^a