Utilization of date seeds and cheese whey in production of citric acid by Candida lipolytica

Abou‐Zeid, Abou‐Zeid A.; Baghlaf, A.O.; Khan, J.A.; Makhashin, Saleh S.

doi:10.1016/0141-4607(83)90112-9

Cited by 19 publications

(7 citation statements)

References 6 publications

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“…WB is a rather complete nutrient for microorganisms [17,31] and contains approximately 18% protein, 5% fat and 62% carbohydrate [32]. On the other hand CDS contains 5-7% protein, 4-10% fat and 12-27% carbohydrate and signiWcant amount of minerals [33][34][35]. This substrate which is appropriate in supporting sustained microbial growth and protease production appeared rather adequate in SSF.…”

Section: Production Of Protease In Submerged Fermentationmentioning

confidence: 93%

Production and optimization of thermophilic alkaline protease in solid-state fermentation by Streptomyces sp. CN902

Lazim

Mankai

Slama

et al. 2009

J Ind Microbiol Biotechnol

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The purpose of the present research is to study the production of thermophilic alkaline protease by a local isolate, Streptomyces sp. CN902, under solid state fermentation (SSF). Optimum SSF parameters for enzyme production have been determined. Various locally available agro-industrial residues have been screened individually or as mixtures for alkaline protease production in SSF. The combination of wheat bran (WB) with chopped date stones (CDS) (5:5) proved to be an efficient mixture for protease production as it gave the highest enzyme activity (90.50 U g(-1)) when compared to individual WB (74.50 U g(-1)) or CDS (69.50 U g(-1)) substrates. This mixed solid substrate was used for the production of protease from Streptomyces sp. CN902 under SSF. Maximal protease production (220.50 U g(-1)) was obtained with an initial moisture content of 60%, an inoculum level of 1 x 10(8) (spore g(-1) substrate) when incubated at 45 degrees C for 5 days. Supplementation of WB and CDS mixtures with yeast extract as a nitrogen source further increased protease production to 245.50 U g(-1) under SSF. Our data demonstrated the usefulness of solid-state fermentation in the production of alkaline protease using WB and CDS mixtures as substrate. Moreover, this approach offered significant benefits due to abundant agro-industrial substrate availability and cheaper cost.

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Section: Production Of Protease In Submerged Fermentationmentioning

confidence: 93%

Production and optimization of thermophilic alkaline protease in solid-state fermentation by Streptomyces sp. CN902

Lazim

Mankai

Slama

et al. 2009

J Ind Microbiol Biotechnol

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“…The addition of date pit ash to the fermentation medium could increase the output of citric acid, indicating the role of certain elements such as calcium, iron, magnesium, manganese, zinc, and nickel in the formation of citric acid (Abou-Zeid et al, 1983;Sivakumar, 2012). Date pits can also be utilized for the production of oxytetracycline by Streptomyces rimosus.…”

Section: Biotechnology Fieldmentioning

confidence: 99%

“…Maximum amount of citric acid was formed at 72 to 96 h of fermentation. The addition of date pit ash to the fermentation medium could increase the output of citric acid, indicating the role of certain elements such as calcium, iron, magnesium, manganese, zinc, and nickel in the formation of citric acid (Abou-Zeid et al, 1983;Sivakumar, 2012).…”

Section: Biotechnology Fieldmentioning

confidence: 99%

Date Pits: Chemical Composition, Nutritional and Medicinal Values, Utilization

et al. 2014

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Date (Phoenix dactylifera L.) pits, by‐products of date fruit processing industries, can provide many essential nutrients and potential health benefits to the human body. The chemical composition of date pits includes dietary fiber, fat, protein, minerals, sugar, antioxidants, and phytosterols. Nutritional and medicinal activities of date pits are related to their chemical composition. Many studies indicate that date pits have antioxidant, anti‐inflammatory, gastroprotective, antiviral, hepatoprotective, nephroprotective, and gonadotropic activities. Date pits have shown a potential application in the food, fermentation, chemical, and feed industries. In this paper, we review chemical composition, nutritional and medicinal value, and the utilization of date pits.

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“…1984 its constituents in chemical, cosmetics, pharmaceuticals, feed and food industries 1,2,[4][5][6][7] . In some countries such as Iran, the wastage of date seeds is a problem in agricultural and industrial processing in which they discarded or utilized on a small scale as animal feed 1,2 .…”

Section: Oriental Journal Of Chemistrymentioning

confidence: 99%

Antioxidant Activity of Date Seed Oils of Fifteen Varieties from Iran

Kazemi¹,

Dadkhah²

2012

Orientjchem.

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In this research, extraction and antioxidant activities of the oils from 15 varieties of Iranian date seeds were investigated. Khazravi variety (13.2%) and Kaliteh variety (6.2%) had highest and lowest yields of seeds with the average of 9.5% respectively. The highest and the lowest yields of oils were related to the Shavi-shirin variety (13.2%) and Piarom variety (6.4%) with the average of 9.5% respectively. Antioxidant activities of the oils were determined with DPPH radical scavenging assays. Results showed that Shavi-talkh and Estamaran varieties had highest and lowest activities with amount of 55.5% and 5.1% respectively (with average 30.1%). It was found that the some oils significantly reduced the concentration of DPPH free radical, with an efficacy higher than that of trolox (34.0%). These results may be encouraged interest in date seed oils for use in cosmetics, pharmaceuticals and food industries.

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Utilization of date seeds and cheese whey in production of citric acid by Candida lipolytica

Cited by 19 publications

References 6 publications

Production and optimization of thermophilic alkaline protease in solid-state fermentation by Streptomyces sp. CN902

Production and optimization of thermophilic alkaline protease in solid-state fermentation by Streptomyces sp. CN902

Date Pits: Chemical Composition, Nutritional and Medicinal Values, Utilization

Antioxidant Activity of Date Seed Oils of Fifteen Varieties from Iran

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