<scp>D</scp>-Arabitol production by <i>Endomycopsis burtonii</i> in sugarcane juice media

Falanghe, H.; Caruso, João Gustavo Brasil

doi:10.1139/m72-170

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…2003), pollen and bees in Brazil (Boidin et al . 1964), and unrelated substrates (Falanghe & Caruso 1972, Abe et al 2004). Two of the yeasts, with sequences that differ from all others by 5–6 bp, probably represent undescribed species.…”

Section: Resultsmentioning

confidence: 99%

“…Yeast six has an identical LSU rDNA sequence to P. burtonii, isolated from a scolytine beetle, the coffee berry borer Hypothenemus hampeii (Ferr.) in Colombia (Vega et al 2003), pollen and bees in Brazil (Boidin et al 1964), and unrelated substrates (Falanghe & Caruso 1972, Abe et al 2004). Two of the yeasts, with sequences that differ from all others by 5-6 bp, probably represent undescribed species.…”

Section: Resultsmentioning

confidence: 99%

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Yeasts Isolated from Neotropical Wood‐Boring Beetles in SE Peru

et al. 2007

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Some temperate wood‐boring cerambycid beetles harbor intracellular gut yeasts believed to augment host nutrition, but species belonging to the subfamily Lamiinae are thought to lack endosymbionts. Almost 49 percent of Neotropical cerambycid species are lamiines, therefore, comparatively few rain forest species would be expected to host symbiotic gut yeasts. This study reports the isolation of gut yeasts from closely related Neotropical lamiines. We investigated species that feed on trees in the Brazil nut family (Lecythidaceae), because host plant associations are relatively well known. Our objectives were to determine if gut yeasts were present and, if possible, infer their mode of transmission. We collected and dissected 18 beetle specimens from three tree species, including 17 cerambycids and one curculionid. Every insect specimen yielded a gut yeast. DNA sequence libraries were used for a rapid identification of the yeasts and their larval hosts. The cerambycids included five lamiine species and one cerambycine. Six ascomycete yeasts were isolated from their guts; we found no evidence of strict vertical transmission. Larval gut yeasts were genetically similar to yeasts previously isolated from insects associated with wood or fungi, implying potential habitat specificity. The yeasts have not yet been localized, and potential function is not known, but they may contribute to rapid nutrient cycling or serve as the first line of defense against plant toxins.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Yeasts Isolated from Neotropical Wood‐Boring Beetles in SE Peru

et al. 2007

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“…Similarly arabitol and glycerol mixtures were produced from glucose by S. rouxii . Falanghe and Caruso produced arabitol from cheap sugarcane juice media by Endomycopsis burtonii …”

Section: Introductionmentioning

confidence: 99%

Purification of arabitol from fermentation broth of Debaryomyces hansenii using glycerol as substrate

Loman

2012

J of Chemical Tech & Biotech

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BACKGROUND: Arabitol has many potential industrial applications and it can be produced by fermentation from glycerol, a major byproduct of biodiesel industry. This work aims at developing a new process for collecting and purifying arabitol from the broth of osmophilic Debaryomyces hansenii containing arabitol, unconsumed glycerol, and other minor impurities. RESULTS: The process developed and optimized in this study had the following steps: first, the broth supernatant was treated with 8 g L −1 activated carbon at 30 • C and pH 6 for removal of colored organics and some impurities. Then glycerol was selectively removed by acetone extraction at 30 • C. The acetone amount was optimized according to the measured solubility data of simulative glycerol-xylitol-acetone systems and real fermentation broth. The glycerol-removed remainder was next extracted for arabitol with butanol (90% of supernatant volume) at 90 • C. White arabitol crystals were collected from the cooled butanol extract. The overall recovery and purity of arabitol crystals were 66% and 95%, respectively. CONCLUSION: Successful arabitol purification was achieved with an optimized process. Fundamental phase equilibrium data of glycerol-xylitol-acetone systems were obtained. The process developed would prove valuable for arabitol production and potentially for separation of other polyols.

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D-Arabitol production by Endomycopsis burtonii in sugarcane juice media

Cited by 2 publications

References 8 publications

Yeasts Isolated from Neotropical Wood‐Boring Beetles in SE Peru

Yeasts Isolated from Neotropical Wood‐Boring Beetles in SE Peru

Purification of arabitol from fermentation broth of Debaryomyces hansenii using glycerol as substrate

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