TY - JOUR TI - Optimization of ethanol fermentation with reducing sugars from Camellia (Camellia oleifera) seed meal using response surface methodology AU - Peng Ling JN - Thermal Science PY - 2018 VL - 22 IS - 12 SP - 639 EP - 647 PT - Article AB - Camellia seed meal is studied as raw material for fermentation of ethanol. In the experiments, the effect of different variables, such as the ratio of calcium to magnesium ion, ammonium chloride addition ratio, and yeast addition ratio on ethanol yield of the reducing sugar fermentation from Camellia seed meal were investigated by a single-factor test and a response surface methodology, respectively. The results indicated that the optimal fermentation conditions of the reducing sugar from Camellia seed meal were the ratio of calcium and magnesium ion 1:1, the ammonium chloride addition ratio 0.70%, the yeast addition ratio 0.4%. And the yield of ethanol was 95.4% under the optimum fermentation conditions (1:1, 0.70% ammonium chloride, 0.4% yeast) given by using response surface methodology (RSM). Moreover, variation coefficient was 0.59%, which showed the results were significantly consistent with the predicted value of RSM. It indicated that response surface methodology was reliable to optimize the fermentation conditions of ethanol yield.