Information on the efficiency of PHA synthesis with oily substrates
is ambiguous, which can be discouraging for potential investors
interested in their use. Contradictions arise from different
methods used for evaluating the process efficiency of PHAs production.
In most cases, PHAs content in bacterial cells has been
evaluated with gas chromatography results, although some researchers
have weighed PHAs after extraction and purification.
Furthermore, reports of biopolymer productivity have differed even
when using the same type of oil because different bacterial strains
were used. There is a need for more studies that evaluate the
productivity of individual strains that are grown in culture media
supplemented with different carbon sources. These studies will
provide information about what kind of oil is most suitable for
biopolymer production. In addition, more studies are needed with
waste oils from frying. When these oils are exposed to high temperatures,
food and air for long periods, chemical reactions can
form compounds toxic to bacteria. Thus, the chemical
characteristics and fatty acid composition of frying oils should be
determined to optimize the PHAs synthesis process.
Information on the efficiency of PHA synthesis with oily substratesis ambiguous, which can be discouraging for potential investorsinterested in their use. Contradictions arise from differentmethods used for evaluating the process efficiency of PHAs production.In most cases, PHAs content in bacterial cells has beenevaluated with gas chromatography results, although some researchershave weighed PHAs after extraction and purification.Furthermore, reports of biopolymer productivity have differed evenwhen using the same type of oil because different bacterial strainswere used. There is a need for more studies that evaluate theproductivity of individual strains that are grown in culture mediasupplemented with different carbon sources. These studies willprovide information about what kind of oil is most suitable forbiopolymer production. In addition, more studies are needed withwaste oils from frying. When these oils are exposed to high temperatures,food and air for long periods, chemical reactions canform compounds toxic to bacteria. Thus, the chemicalcharacteristics and fatty acid composition of frying oils should bedetermined to optimize the PHAs synthesis process.
การแปล กรุณารอสักครู่..