Production of β-carotene by aRhodotorula strain

Costa, Irina dos Santos Miranda; Martelli, H. L.; Silva, I. M. da; Pomeroy, Derek

doi:10.1007/bf01025808

Cited by 32 publications

(17 citation statements)

References 2 publications

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“…Increase of dry biomass did not indicate about the increase of total carotenoids ( Table 2), this finding is in agreement with that reported by other investigators [15,33,34].…”

Section: Screening Of the Yeast Isolatessupporting

confidence: 92%

“…Table 5 shows Munsell colour, dry biomass, amount and proportions of individual carotenoids and total lipids of the most promising isolate Rhodotorula glutinis var glutinis. This carotenoids concentration is higher than that reported by some workers [15][16][17]21,34]. The selected isolate is a promising one for production of carotenoids.…”

Section: Production Of Carotenoids By the Identified Most Promising Icontrasting

confidence: 51%

“…The production of carotenoids by genus Rhodotorula is affected by species, medium constituents and environmental conditions. The amount of carotenoids produced by this genus can be arranged as low (less than 100 μg·g -1 ), medium (101 to 500 μg·g -1 ) and high (more than 500 μg·g -1 ) as reported by many others [9,[15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 60%

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Isolation, Identification and Screening of Carotenoid-Producing Strains of <i>Rhodotorula glutinis</i>

El‐Banna¹,

El-Razek²,

El-Mahdy³

2012

FNS

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An attempt was made to isolate yeast strains from different sources (flowers, trees exudates, fruits and cheese) which have a fast growth rate and high content of carotenoids. Seventy cultures of pigmented yeast were isolated. Forty six yeast isolates were selected and identified by simplified identification method which showed that all isolates belong to Rhodotorula glutinis. These isolates were screened in two steps. Seventeen promising isolates of Rhodotorula glutinis were selected after the primary screening. Then 6 yeast isolates were chosen and passed through the second screening. The most promising isolate (isolated from pin cushion flower, Scabiosa atropurpurea) was selected according to its total carotenoids content expressed as torulene (μg·g -1 and μg·L -1 ). This isolate was reclassified using a number of morphological, biochemical, and physiological characteristics which revealed that the yeast isolate agree well with those of Rhodotorula glutinis var. glutinis. Dry biomass, amount and proportion of individual carotenoids and lipid content of the selected identified yeast were determined.

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“…Increase of dry biomass did not indicate about the increase of total carotenoids ( Table 2), this finding is in agreement with that reported by other investigators [15,33,34].…”

Section: Screening Of the Yeast Isolatessupporting

confidence: 92%

Section: Production Of Carotenoids By the Identified Most Promising Icontrasting

confidence: 51%

Section: Introductionmentioning

confidence: 60%

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Isolation, Identification and Screening of Carotenoid-Producing Strains of <i>Rhodotorula glutinis</i>

El‐Banna¹,

El-Razek²,

El-Mahdy³

2012

FNS

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“…Their carotenoid composition is similar, consisting of β-carotene, γ-carotene, torulene and torularhodin (5,18). Fig.…”

Section: Resultsmentioning

confidence: 99%

Selection and characterization of carotenoid-producing yeasts from Campinas region, Brazil

Maldonade

Scamparini

Rodriguez–Amaya

2007

Braz. J. Microbiol.

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The objective of the present study was to select and identify yeasts from Brazil capable of producing carotenoids. Pigmented yeasts were isolated from soil, leaves, fruits, flowers and a processed product. The samples were incubated at 30ºC in Erlenmeyer flasks, containing YM broth. After 48 hours, they were inoculated in Petri dishes with YM agar, and incubated at 30ºC during 120 hours. The yeast colonies, which presented yellow to red coloration, were transferred to culture tubes containing YM agar, and incubated at 30ºC for 72 hours. Out of 242 samples, only five had yellow to red color at high intensity. These highly pigmented yeasts were re-isolated in Petri dishes with YM agar and then transferred to tubes with GPYM agar. Identification through morphological and reproduction characteristics, along with physiological and biochemical tests, classified four strains as R. mucilaginosa and one strain as R. graminis. The main carotenoids extracted from them were identified through HPLC analysis as β-carotene and torulene. The strains showed potential as promising microorganisms for the commercial production of carotenoids.

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“…This is the phase when there is the highest production of carotenoids due to a metabolic change from growth to pigment biosynthesis (COSTA et al, 1987); reason why incubation was kept for 72 hours.…”

Section: Growth and Biomass Productionmentioning

confidence: 99%

Carotenoid production by Rhodotorula rubra cultivated in sugarcane juice, molasses, and syrup

Banzatto

Freita

Mutton

2013

Ciênc. Tecnol. Aliment.

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Production of β-carotene by aRhodotorula strain

Cited by 32 publications

References 2 publications

Isolation, Identification and Screening of Carotenoid-Producing Strains of <i>Rhodotorula glutinis</i>

Isolation, Identification and Screening of Carotenoid-Producing Strains of <i>Rhodotorula glutinis</i>

Selection and characterization of carotenoid-producing yeasts from Campinas region, Brazil

Carotenoid production by Rhodotorula rubra cultivated in sugarcane juice, molasses, and syrup

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Production of β-carotene by aRhodotorula strain

Cited by 32 publications

References 2 publications

Isolation, Identification and Screening of Carotenoid-Producing Strains of &lt;i&gt;Rhodotorula glutinis&lt;/i&gt;

Isolation, Identification and Screening of Carotenoid-Producing Strains of &lt;i&gt;Rhodotorula glutinis&lt;/i&gt;

Selection and characterization of carotenoid-producing yeasts from Campinas region, Brazil

Carotenoid production by Rhodotorula rubra cultivated in sugarcane juice, molasses, and syrup

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Isolation, Identification and Screening of Carotenoid-Producing Strains of <i>Rhodotorula glutinis</i>

Isolation, Identification and Screening of Carotenoid-Producing Strains of <i>Rhodotorula glutinis</i>