Enhanced production of prodigiosin by Serratia marcescens MO-1 using ram horn peptone

Kurbanoğlu, Esabı Başaran; Özdal, Murat; Ozdal, Ozlem Gur; Algur, Ömer Faruk

doi:10.1590/s1517-838246246220131143

Cited by 64 publications

(48 citation statements)

References 32 publications

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“…Subsequent increase either did not affect or caused adverse effect on responses. Especially for CFP, concentration greater than 9 g/L was inhibitory to rhamnolipid production which might be due to high salt concentration, some toxic materials, and the change of C/N ratio of culture medium (Kurbanoglu et al 2015). The elliptical shape of the contour plots indicates a significant interaction, while circular shape indicates insignificant interaction (Gurkok et al 2011).…”

Section: Selection Of Optimal Carbon and Nitrogen Sourcesmentioning

confidence: 98%

Optimization of rhamnolipid production by Pseudomonas aeruginosa OG1 using waste frying oil and chicken feather peptone

2017

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In the present study, production of rhamnolipid biosurfactant by Pseudomonas aeruginosa OG1 was statistically optimized by response surface methodology. Box-Behnken design was applied to determine the optimal concentrations of 52, 9.2, and 4.5 g/L for carbon source (waste frying oil), nitrogen source (chicken feather peptone), and KH 2 PO 4 , respectively, in production medium. Under the optimized cultivation conditions, rhamnolipid production reached up to 13.31 g/L (with an emulsification activity of 80%), which is approximately twofold higher than the yield obtained from preliminary cultivations. Hence, rhamnolipid production, noteworthy in the literature, was achieved with the use of statistical optimization on inexpensive waste materials for the first time in the present study.

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Section: Selection Of Optimal Carbon and Nitrogen Sourcesmentioning

confidence: 98%

Optimization of rhamnolipid production by Pseudomonas aeruginosa OG1 using waste frying oil and chicken feather peptone

2017

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“…This positive effect of CFP may be a result of high amino acid and mineral contents [20,23]. The nitrogen contents of CFP, BP, TP and YE are 9.0 [23], 13.8, 10, and 10.9 (g/100 g) [26], respectively. Since CFP is chemically synthesized, the ash content (about 41%) is also high in other organic nitrogen sources (11-15%) [23].…”

Section: Effect Of Organic Nitrogen Sources On Production Of Xanthanmentioning

confidence: 98%

“…It was found that applications higher than 4 g/L CFP had a negative effect for xanthan concentration. This negative effect may be a result of high nitrogen source and salt concentration [21,26]. It can be said that the addition of 4 g/L CFP to the CM may provide the proper carbon/nitrogen (C/N) ratio for xanthan gum production.…”

Section: Effect Of Cfp On Xanthan Gum Productionmentioning

confidence: 99%

“…Since CFP is chemically synthesized, the ash content (about 41%) is also high in other organic nitrogen sources (11-15%) [23]. Many researchers reported that the addition of organic nitrogen sources (yeast extract, ram horn hydrolyzate) to the production medium promoted cell growth and xanthan gum production [14,26,36].…”

Section: Effect Of Organic Nitrogen Sources On Production Of Xanthanmentioning

confidence: 99%

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Use of Chicken Feather Peptone and Sugar Beet Molasses as Low Cost Substrates for Xanthan Production by Xanthomonas campestris MO-03

Özdal¹,

Kurbanoğlu²

2019

Fermentation

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Xanthan gum is one of the polysaccharides most commonly used in a broad range of industries (food, cosmetics, pharmaceutical, etc.). Agro-industrial by-products are being explored as alternative low-cost nutrients to produce xanthan gum by Xanthomonas campestris. In this study, for the production of xanthan gum, sugar beet molasses and chicken feather peptone (CFP) were used as carbon and nitrogen sources, respectively. X. campestris produced the highest level of xanthan gum (20.5 g/L) at 60 h of cultivation using sugar beet molasses (40 g/L total sugar) supplemented with CFP (4 g/L) at pH 7, 200 rpm, and 30 °C. The pyruvic acid content of the xanthan gums increased with increasing CFP concentration. Compared with commercial organic nitrogen sources (tryptone, bacto peptone, and yeast extract), the highest production of xanthan gum was obtained with CFP. Moreover, among the tested peptones, the highest pyruvic acid (3.2%, w/w) content was obtained from CFP. The usage of sugar beet molasses and CFP as substrates in industries would enable a cost-efficient commercial production. These results suggest that sugar beet molasses and CFP can be used as available low-cost substrates for xanthan gum production by X. campestris.

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“…Analysis of Fatty Acid Methyl Esters (FAMEs) from whole cell fatty acids of bacterial isolates were carried out using GC according to the method described by the Kurbanoglu et al [10]. B. cereus strains were grown and maintained on Nutrient Agar (NA; Merck) slants at 28 °C and 4 °C, respectively.…”

Section: Isolation and Identification Of Microorganismsmentioning

confidence: 99%

Biosynthesis Of Indole-3-Acetic Acid By Bacillus cereus Immobilized Cells

Özdal¹,

Ozdal²,

Sezen³

et al. 2016

CSJ

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Abstract. Four different strains of Bacillus cereus producing indole-3-acetic acid (IAA) were isolated from various rhizospheric soils and characterized biochemically. The isolates were screened for (IAA) production and BC-On strain was found to be the best IAA producer with 46.25 mg/l. Maximum IAA production was obtained in the stationary growth phase at 72h. Significant correlation was also observed between IAA production and growth of the B. cereus strains. Among the isolates, BC-On strain was further used for immobilization studies. Maximum IAA production was obtained at initial pH of 8.0 and temperature of 35 °C after 18 h of fermentation. The immobilized cells could be effectively reused thirteen times and the IAA concentration of 300 mg/l was determined during this period. Results showed that immobilized cells can be used in the continuous process for the production of IAA. The productivity obtained by immobilization was higher than the one obtained by submerged cultivation and immobilization reduced the fermentation time.Keywords: Indole-3-acetic acid, Rhizobacteria, Bacillus cereus, Immobilization Immobilize Bacillus cereus Hücreleri Tarafından İndol-3-Asetik Asitin BiyosenteziÖzet. İndol-3-asetik asit (İAA) üreten dört farklı Bacillus cereus straini çeşitli rizosfer topraklarından izole edildi ve biyokimyasal olarak karakterize edilmiştir. İzolatlar İAA üretimi için taranmış ve BC-On straini 46.25 mg/l ile en iyi İAA üreticisi olarak bulunmuştur. En fazla IAA üretimi 72. saatte durağan büyüme fazında elde edilmiştir. B. cereus strainlerinin IAA üretimi ve büyüme arasında önemli bir ilişki gözlenmiştir. İzolatlar arasında, BC-On straini immobilizasyon çalışmalarında kullanılmıştır. En fazla IAA üretimi 18 saatlik fermentasyon sonrasında başlangıç pH'sı 8.0 ve 35 °C elde edilmiştir. İmmobilize edilmiş hücreler etkili olarak on üç kez kullanılabilmiş ve bu süre boyunca 300 mg/l İAA konsantrasyonu tespit edilmiştir. Sonuçlar immobilize hücrelerin IAA üretimi için sürekli bir işlemde kullanılabilir olduğunu göstermiştir. İmmobilizasyon ile elde edilen verimlilik, derin fermentasyon ile elde edilenden daha yüksek olduğu bulunmuş ve immobilizasyon fermentasyon süresini kısaltmıştır.

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Enhanced production of prodigiosin by Serratia marcescens MO-1 using ram horn peptone

Cited by 64 publications

References 32 publications

Optimization of rhamnolipid production by Pseudomonas aeruginosa OG1 using waste frying oil and chicken feather peptone

Optimization of rhamnolipid production by Pseudomonas aeruginosa OG1 using waste frying oil and chicken feather peptone

Use of Chicken Feather Peptone and Sugar Beet Molasses as Low Cost Substrates for Xanthan Production by Xanthomonas campestris MO-03

Biosynthesis Of Indole-3-Acetic Acid By Bacillus cereus Immobilized Cells

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