Effect of carbon and nitrogen sources on simultaneous production of α-amylase and green food packaging polymer by Bacillus sp. CFR 67

Sreekanth, M.; Vijayendra, S. V. N.; Joshi, G. J.; Shamala, T. R.

doi:10.1007/s13197-012-0639-6

Cited by 40 publications

(14 citation statements)

References 23 publications

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“…The effect of C/N ratio on PHA yield had also been reported elsewhere [68]. The concept of C/N ratio originated from the biological law according to which limitation of carbon and nitrogen control the molecular size of PHAs and number of bacterial cells.…”

Section: Carbon To Nitrogen Ratiomentioning

confidence: 84%

Recent developments in bioreactor scale production of bacterial polyhydroxyalkanoates

Raza

Tariq

Majeed

et al. 2019

Bioprocess Biosyst Eng

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Polyhydroxyalkanoates (PHAs) are biological plastics that are sustainable alternative to synthetic ones. Numerous microorganisms have been identified as PHAs producers they store PHAs as cellular inclusions to use as an energy source backup. They can be produced in shake flasks and in bioreactors under defined fermentation and physiological culture conditions using suitable nutrients. Their production at bioreactor scale depends on various factors such as carbon source, nutrients supply, temperature, dissolved oxygen level, pH and processes. Once produced, PHAs find diverse applications in multiple fields of science and technology particularly in the medical sector. The present review covers some recent developments in sustainable bioreactor scale production of PHAs and identifies some areas in which future research in this field might be focused.

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Section: Carbon To Nitrogen Ratiomentioning

confidence: 84%

Recent developments in bioreactor scale production of bacterial polyhydroxyalkanoates

Raza

Tariq

Majeed

et al. 2019

Bioprocess Biosyst Eng

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show abstract

“…Apart from the carbon, other chemical compounds are required such as nitrogen sources, and some of the most used are (NH 4 ) 2 SO 4 , NH 4 Cl, or NH 4 NO 3 [ 22 ]. Variation in carbon to nitrogen ratios led to a different amount of PHA concentration in bacterial cells [ 38 ], and most of the studies showed that limiting nitrogen concentration while increasing carbon substrates had a positive effect on the PHA production rate [ 39 , 40 ]. Since the biosynthesis process ends with the storage of PHA granules into the cell cytoplasm, a further crucial step is required, the extraction of the PHAs granules from the bacterial cell.…”

Section: Pha: Biosynthesis and Propertiesmentioning

confidence: 99%

Advantages of Additive Manufacturing for Biomedical Applications of Polyhydroxyalkanoates

et al. 2021

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In recent years, biopolymers have been attracting the attention of researchers and specialists from different fields, including biotechnology, material science, engineering, and medicine. The reason is the possibility of combining sustainability with scientific and technological progress. This is an extremely broad research topic, and a distinction has to be made among different classes and types of biopolymers. Polyhydroxyalkanoate (PHA) is a particular family of polyesters, synthetized by microorganisms under unbalanced growth conditions, making them both bio-based and biodegradable polymers with a thermoplastic behavior. Recently, PHAs were used more intensively in biomedical applications because of their tunable mechanical properties, cytocompatibility, adhesion for cells, and controllable biodegradability. Similarly, the 3D-printing technologies show increasing potential in this particular field of application, due to their advantages in tailor-made design, rapid prototyping, and manufacturing of complex structures. In this review, first, the synthesis and the production of PHAs are described, and different production techniques of medical implants are compared. Then, an overview is given on the most recent and relevant medical applications of PHA for drug delivery, vessel stenting, and tissue engineering. A special focus is reserved for the innovations brought by the introduction of additive manufacturing in this field, as compared to the traditional techniques. All of these advances are expected to have important scientific and commercial applications in the near future.

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“…Biosynthesis of the enzyme was took place not only in the presence of starch but also with other carbon sources (Deb et al, 2013). Production and activity of amylase is increase using tapioca flour as carbon source on medium growth of Bacillus sp (Sreekanth et al, 2013). On the Bacillus tequilensis RG-01, amylase production was increased using wheat bran as carbon source (Tiwari et al, 2014).…”

Section: The Effect Of Different Of Carbon Sourcementioning

confidence: 99%

Isolation of Thermophilic Bacteria and Optimizing the Medium Growth Conditions

Indriati¹,

Megahati²

2018

Int.J.Curr.Microbiol.App.Sci

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Effect of carbon and nitrogen sources on simultaneous production of α-amylase and green food packaging polymer by Bacillus sp. CFR 67

Abstract: In this paper, effect of different carbon and nitrogen sources, including hydrolysates of rice bran and wheat bran, on simultaneous production of α-amylase (for hydrolysis of starch in food systems) and polyhydroxyalkanoates

Cited by 40 publications

References 23 publications

Recent developments in bioreactor scale production of bacterial polyhydroxyalkanoates

Recent developments in bioreactor scale production of bacterial polyhydroxyalkanoates

Advantages of Additive Manufacturing for Biomedical Applications of Polyhydroxyalkanoates

Isolation of Thermophilic Bacteria and Optimizing the Medium Growth Conditions

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