2014
DOI: 10.1007/978-3-662-45209-7_3
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Microorganism for Bioconversion of Sugar Hydrolysates into Lipids

Abstract: A simple and rapid dual-wavelength spectroscopic method is used for simultaneous determination of pentoses and hexoses in the prehydrolyzate from lignocellulosic biomass. The method is based on the following reaction mechanism: in the solution of hydrochloric acid, phloroglucinol gives color reaction with sugars or their degradation products, showing maximum absorbance at 553 nm and 410 nm. Based on dual-wavelength spectrophotometric measurement, the pentoses and hexoses can separately be quantified. It was fo… Show more

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Cited by 8 publications
(7 citation statements)
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“…Thermochemical pretreatment requires a high input of energy and generates inhibitors from the substrate, such as the sugar degradation products furfural and hydroxymethylfurfural (HMF), acetic acid and other weak organic acids, and phenolic compounds that are released from the lignin (Jönsson et al ., ). To increase the fermentability of hydrolysates, these inhibitors are removed using one to several detoxification procedures (Chandel et al ., ; Coradini et al ., ), such as evaporation, adsorption with resins or activated charchoal, overliming and enzymes (Canilha et al ., ; Chandel et al ., ). Detoxification steps should be minimized to reach economically viable biofuel production from hydrolysates, as these steps can represent up to 22% of second‐generation biofuel production costs (Koppram et al ., ).…”
Section: Introductionmentioning
confidence: 99%
“…Thermochemical pretreatment requires a high input of energy and generates inhibitors from the substrate, such as the sugar degradation products furfural and hydroxymethylfurfural (HMF), acetic acid and other weak organic acids, and phenolic compounds that are released from the lignin (Jönsson et al ., ). To increase the fermentability of hydrolysates, these inhibitors are removed using one to several detoxification procedures (Chandel et al ., ; Coradini et al ., ), such as evaporation, adsorption with resins or activated charchoal, overliming and enzymes (Canilha et al ., ; Chandel et al ., ). Detoxification steps should be minimized to reach economically viable biofuel production from hydrolysates, as these steps can represent up to 22% of second‐generation biofuel production costs (Koppram et al ., ).…”
Section: Introductionmentioning
confidence: 99%
“…Before the beginning of SSF, the main content of lignocellulosic biomass (mulberry branches) consisted of cellulose, hemicellulose and lignin at 45.11, 31.39 and 17.36%, respectively. Cellulose, the main fraction of plant cell walls, is linear and crystalline and is a homo-polymer of repeating units of glucose linked by β (1–4) glycosidic bonds [45]; thus, the oleaginous fungi firstly use cellulose as a carbon source to grow. As seen in figure 5, the content of cellulose, in comparison to hemicellulose and lignin, was significantly decreased from 45.11% to 41.48% after 8 days.…”
Section: Resultsmentioning
confidence: 99%
“…In nature several microorganisms when grown under nutrient stress conditions (High C: N) ratio including bacteria, fungi, yeast and algae capable of producing microbial oils (1)(2)(3)(4)(5)(6). Utilization of low cost materials for production of lipids is major concern for commercialization.…”
Section: Introductionmentioning
confidence: 99%