Erratum to: Microbial production of poly(hydroxybutyrate) from C1 carbon sources

Mokhtari, Zahra-Beigom; Amai, Tomohito; Tanaka, Kenji

doi:10.1007/s00253-013-4807-z

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Methanotrophs, which utilize methane as the sole carbon source, mainly consist of two groups, type I and II, with different pathways, the ribulose monophosphate (RuMP) pathway and the serine pathway, to complete carbon assimilation (12). PHB production has been reported to be restricted to type II genera (13), among which Methylocystis and Methylosinus are the most documented.…”

Section: Introductionmentioning

confidence: 99%

“…Both methane and oxygen are important for methanotrophs (2)and variations of their partial pressure are likely to affect the activities and metabolisms of the methanotrophs. PHB are generally synthesized by microorganism under nutrient-limiting conditions and are consumed as a source of reducing equivalent under nutrient-sufficient conditions (12). Nitrogen deficiency is one of the most common ways to trigger the accumulation of PHB (14).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Poly-β-hydroxybutyrate Production by Methylosinus trichosporium OB3b at Different Gas-phase Conditions

Zhang

Wang

2019

IRAN J BIOTCH

View full text Add to dashboard Cite

Background The utilization of methane for production of Poly-β-hydroxybutyrate (PHB) not only cuts the emissions of greenhouse gases but also greatly reduces PHB production cost. Objectives The aim of this study was to determine the effects of gas-phase conditions on PHB production by Methylosinus trichosporium OB 3 b. Materials and Methods Bacterial cultivation and PHB production were conducted in a series of sealed serum bottles. Nitrogen-free mineral salts medium was used to induce PHB production in the presence or absence of N 2 in the headspace. Results In the absence of N 2 , the highest PHB content (i.e., 52.9% of the dry cell weight with a PHB concentration of 814.3 mg.L -1 ) was obtained at a ratio of CH 4 :O 2 =2:1. Further study at different O 2 concentrations with a fixed CH 4 partial pressure in absence of N 2 showed that PHB accumulation by methanotroph could be tolerated high oxygen partial pressure and its respond to the variation of the oxygen concentration depends on the methane partial pressure. In presence of N 2 , with headspace gas replenished only when oxygen was almost depleted, the degradation of intracellular PHB has appeared. In the regimen of updating headspace gas at the point when the PHB content began to decrease, the highest PHB content (i.e., 55.5% of the dry cell weight with 901.8 mg.L -1 PHB concentration and 12.5 mg.L -1 .h -1 PHB productivity) was obtained at 0.2 atm O 2 and PHB accumulation was depressed with an oxygen concentration greater than 0.3 atm. Conclusions The methanotroph responses differentially to the increase in the oxygen partial pressure with regard to PHB accumulation either in the presence or in the absence of N2.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Poly-β-hydroxybutyrate Production by Methylosinus trichosporium OB3b at Different Gas-phase Conditions

Zhang

Wang

2019

IRAN J BIOTCH

View full text Add to dashboard Cite

show abstract

Production of polyhydroxyalkanoates using dairy processing waste – A review

Tripathi

Paul

Agarwal³

et al. 2021

Bioresource Technology

View full text Add to dashboard Cite

Switching from petro-plastics to microbial polyhydroxyalkanoates (PHA): the biotechnological escape route of choice out of the plastic predicament?

Koller

2019

The EuroBiotech Journal

View full text Add to dashboard Cite

The benefit of biodegradable “green plastics” over established synthetic plastics from petro-chemistry, namely their complete degradation and safe disposal, makes them attractive for use in various fields, including agriculture, food packaging, and the biomedical and pharmaceutical sector. In this context, microbial polyhydroxyalkanoates (PHA) are auspicious biodegradable plastic-like polyesters that are considered to exert less environmental burden if compared to polymers derived from fossil resources. The question of environmental and economic superiority of bio-plastics has inspired innumerable scientists during the last decades. As a matter of fact, bio-plastics like PHA have inherent economic drawbacks compared to plastics from fossil resources; they typically have higher raw material costs, and the processes are of lower productivity and are often still in the infancy of their technical development. This explains that it is no trivial task to get down the advantage of fossil-based competitors on the plastic market. Therefore, the market success of biopolymers like PHA requires R&D progress at all stages of the production chain in order to compensate for this disadvantage, especially as long as fossil resources are still available at an ecologically unjustifiable price as it does today. Ecological performance is, although a logical argument for biopolymers in general, not sufficient to make industry and the society switch from established plastics to bio-alternatives. On the one hand, the review highlights that there’s indeed an urgent necessity to switch to such alternatives; on the other hand, it demonstrates the individual stages of the production chain, which need to be addressed to make PHA competitive in economic, environmental, ethical, and performance-related terms. In addition, it is demonstrated how new, smart PHA-based materials can be designed, which meet the customer’s expectations when applied, e.g., in the biomedical or food packaging sector.

show abstract

Erratum to: Microbial production of poly(hydroxybutyrate) from C1 carbon sources

Abstract: For the reference "A viable antibiotic strategy against microbial contamination in biotechnological production of polyhydroxyalkanoates from surplus whey", Biomass Bioenerg 35:748-753, wrong author names have been listed.

Cited by 3 publications

References 0 publications

Poly-β-hydroxybutyrate Production by Methylosinus trichosporium OB3b at Different Gas-phase Conditions

Poly-β-hydroxybutyrate Production by Methylosinus trichosporium OB3b at Different Gas-phase Conditions

Production of polyhydroxyalkanoates using dairy processing waste – A review

Switching from petro-plastics to microbial polyhydroxyalkanoates (PHA): the biotechnological escape route of choice out of the plastic predicament?

Contact Info

Product

Resources

About