Ethanol production from carob extract by using Saccharomyces cerevisiae

Turhan, İrfan; Bialka, Katherine L.; Demirci, Ali; Karhan, Mustafa

doi:10.1016/j.biortech.2010.01.146

Cited by 133 publications

(78 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Fadel [7] reported that ethanol production increases by inoculum up to 4%. Furthermore, it was reported that 3% inoculum size was the optimum for ethanol production from carob [20]. Therefore, 3% inoculum size was also suggested to be the optimum level for ethanol by this study.…”

Section: Effect Of Inoculum Size On Ethanol Productionsupporting

confidence: 51%

“…A comparison of poultry meal, hull and fines mix, feather meal and meat bone meal for ethanol production on carob extract by using S. cerevisiae was reported by Turhan et al [20]. In their study, maximum production rate and ethanol yield among four alternative nitrogen sources were determined by addition of meat bone meal, whereas none of the other evaluated nitrogen sources reached the yield of ethanol and growth rate when yeast extract was added.…”

Section: Effect Of Nitrogen Sourcesmentioning

confidence: 81%

“…During the uncontrolled pH treatment, however, the minimum observed pH was 4.1. Turhan et al [20] reported that maximum ethanol yield, maximum growth rate, and biomass concentration were obtained at pH 5.5 on carob as a medium for ethanol production. Therefore, pH 5.5 was found to be the best pH level and therefore, used for the rest of the study.…”

Section: Effect Of Ph On Ethanol Productionmentioning

confidence: 99%

See 2 more Smart Citations

Ethanol Production from Waste Potato Mash by Using Saccharomyces Cerevisiae

Izmirlioglu

Demirci

2012

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Bio-ethanol is one of the energy sources that can be produced by renewable sources. Waste potato mash was chosen as a renewable carbon source for ethanol fermentation because it is relatively inexpensive compared with other feedstock considered as food sources. However, a pretreatment process is needed: specifically, liquefaction and saccharification processes are needed to convert starch of potato into fermentable sugars before ethanol fermentation. In this study, hydrolysis of waste potato mash and growth parameters of the ethanol fermentation were optimized to obtain maximum ethanol production. In order to obtain maximum glucose conversions, the relationship among parameters of the liquefaction and saccharification process was investigated by a response surface method. The optimum combination of temperature, dose of enzyme (α-amylase) and amount of waste potato mash was 95 °C, 1 mL of enzyme (18.8 mg protein/mL) and 4.04 g dry-weight/100 mL DI water, with a 68.86% loss in dry weight for liquefaction. For saccharification, temperature, dose of enzyme and saccharification time were optimized and optimum condition was determined as 60 °C-72 h-0.8 mL (300 Unit/mL) of amyloglucosidase combination, yielded 34.9 g/L glucose. After optimization of hydrolysis of the waste potato mash, ethanol fermentation was studied. Effects of pH and inoculum size were evaluated to obtain maximum ethanol. Results showed that pH of 5.5 and 3% OPEN ACCESSAppl. Sci. 2012, 2 739 inolculum size were optimum pH and inoculum size, respectively for maximum ethanol concentration and production rate. The maximum bio-ethanol production rate was obtained at the optimum conditions of 30.99 g/L ethanol. Since yeast extract is not the most economical nitrogen source, four animal-based substitutes (poultry meal, hull and fines mix, feather meal, and meat and bone meal) were evaluated to determine an economical alternative nitrogen source to yeast extract. Poultry meal and feather meal were able to produce 35 g/L and 32.9 g/L ethanol, respectively, which is higher than yeast extract (30.8 g/L). In conclusion, waste potato mash was found as a promising carbon source for ethanol fermentation with alternate nitrogen sources.

show abstract

Section: Effect Of Inoculum Size On Ethanol Productionsupporting

confidence: 51%

Section: Effect Of Nitrogen Sourcesmentioning

confidence: 81%

Section: Effect Of Ph On Ethanol Productionmentioning

confidence: 99%

See 1 more Smart Citation

Ethanol Production from Waste Potato Mash by Using Saccharomyces Cerevisiae

Izmirlioglu

Demirci

2012

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…Additionally, to evaluate the effect of the various nitrogen sources on ethanol fermentation using carob (a Mediterranean fruit) extract by S. cerevisiae was performed by Turhan. [54] It was reported that meat and bone meal, feather meal, poultry meal, and hulls and fines mix were investigated as an alternative to yeast extract. Although, maximum production was determined with yeast extract addition (42.9 g/L), the other four nitrogen sources were still capable to be alternatives to yeast extract and yielded ethanol in a range of 39.88À41.90 g/L.…”

Section: Ethanol Production During Different Fermentation Periods At mentioning

confidence: 99%

Biochemical studies on the production of biofuel (bioethanol) from potato peels wastes by Saccharomyces cerevisiae: effects of fermentation periods and nitrogen source concentration

Sheikh

Al-Bar

Ahmed

2016

Biotechnology & Biotechnological Equipment

View full text Add to dashboard Cite

“…The syrup is fixed in a pH 6 and sterilized during 20 min at 120°C. The extraction parameters were obtained from method advocated by [TURHAN et al, 2008, BUTU, et al, 2014a, BUTNARIU, et al, 2012 . pH is measured using a pH meter and density was determined by density meter.…”

Section: Extraction and Analysis Of Carob Pods Syrupmentioning

confidence: 99%

Kinetic of Batch Production of Lactic Acid From Carob Pods Syrup

DLILALI¹,

Hariri²,

ZOUAOUI³

et al. 2017

bjbabe

View full text Add to dashboard Cite

Abstract. Lactic acid production from renewable resources such as pods of carob alternate to derived products from oil present a growing interest, in particular for the production of biodegradable polylactic acid polymer. The carob pods syrup is a by-product composed of sugars and its use as substrate of low cost in various industries is considered however, few microorganisms consume quickly and effectively sugars to give a single product. Lactic acid bacteria were screened for sugars fermentation and Lactobacillus delbrueckii subsp. bulgaricus showed the highest levels of lactic acid production. The physicochemical analysis of carob pods syrup showed that it presents a suitable quality. The micro-organism implemented is kind Lactobacillus delbrueckii subsp. bulgaricus, cultivated in bathe fermentation. Three culture mediums were tested, the carob syrup enriched with sweet cheese whey (CS+SCW), carob syrup enriched with Tween80 (CS+T80) and carob syrup enriched with sweet cheese whey+Tween80 (CS+SCW+T80), the addition of the growth factors improve the culture, that is why the production of lactate is very important improved 52.76 g/l.

show abstract

Ethanol production from carob extract by using Saccharomyces cerevisiae

Cited by 133 publications

References 17 publications

Ethanol Production from Waste Potato Mash by Using Saccharomyces Cerevisiae

Ethanol Production from Waste Potato Mash by Using Saccharomyces Cerevisiae

Biochemical studies on the production of biofuel (bioethanol) from potato peels wastes by Saccharomyces cerevisiae: effects of fermentation periods and nitrogen source concentration

Kinetic of Batch Production of Lactic Acid From Carob Pods Syrup

Contact Info

Product

Resources

About