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| Çevrml,Bekir Stk; Karipta,Ergin; Yaar,Ahmet; Ytolu,Mustafa. |
| Influences of phenol, ?-naphtol and ?-naphtol, which are toxic chemicals, on citric acid biosynthesis and biomass in the artificial culture setting of Aspergillus niger using batch fermenter are examined in the most favorable fermentation conditions, and a model is proposed. Addition of certain concentrations of phenol, ?-naphtol and ?-naphtol to the culture increases the citric acid production. According to this model, maximum citric acid concentration is 48.3 g L-1 in a culture that does not contain any toxic chemicals, whereas the maximum concentrations obtained in cultures containing 25 mg L-1 phenol, 25 mg L-1 alpha-naphtol and 15 mg L-1 beta-naphtol are 62.5 g L-1, 78.1 g L-1 and 86.0 g L-1, respectively. Moreover, addition of toxic chemicals to the... |
| Tipo: Journal article |
Palavras-chave: A. niger; Citric acid; Fermenter; Toxic chemicals (phenols). |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000600008 |
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| Salehi, Rouhollah; Taghizadeh-Alisaraei, Ahmad; Jahanbakhshi, Ahmad; Shahidi, Fakhri. |
| As the world progresses, more energy is required to get along with everyday changes. Using bio-ethanol as one of the most important bio-fuels is an appropriate response to those changes. Much agricultural waste is being produced in Iran and the combination of such waste can turn it into a good source for the production of bio-ethanol. Thus, in this study, the amount of bioethanol extracted from melon waste was measured and evaluated. To do so, considering the 15 kg capacity of the device's fermenter, 12 kg of refined melon sugar syrup and three kilograms of water (with the standard ratio of 4 to 1), i.e. a total of 15 kg of substrate with the brix degree of 20, as well as 75 gr of saccharomyces cervisiae yeast, cultured in standard conditions (5 grams of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioethanol; Melon waste; Fermenter; Saccharomyces cervisiae; Fermentation. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4821 |
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