| However, the mechanism of porphyrin photodegradation can be complex and differs in solution and in biological media. |
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| It appears generally that hydroxylated indoles undergo photodegradation more readily than nonhydroxylated derivatives. |
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| The flash photolysis technique can be used to determine the time of evolution of the products of photodegradation. |
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| Three types of pesticide degradation are microbial, chemical, and photodegradation. |
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| Understanding the mechanisms by which photodegradation occurs may lead to more polymers that have environmental and medical applications. |
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| Riboflavin photodegradation and photosensitizing effects are highly dependent on oxygen and ascorbate concentrations. |
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| However, some level of continued photodegradation down to the biphenyl ether could also likely occur. |
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| The photodegradation which considerably speed up the visible skin ageing increases also a lot the risk of development of cutaneous neoplasm. |
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| Alpha-HCH is, in principle, degradable in environmental compartments by abiotic processes such as photodegradation or hydrolysis. |
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| Even when indirect photolysis could occur with a photosensitizing agent, there is no clear evidence of lindane photodegradation. |
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| The following qualifications refer to all types of degradation, including for instance biodegradation and photodegradation. |
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| Degradation may occur in air, land or water and usually occurs either through biodegradation or photodegradation. |
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| All operations were carried out on ice under a dim green safe light to prevent photodegradation, isomerization and structural changes of the pigments. |
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| The same photoproducts were obtained when the irradiation was performed in aerated acetonitrile, although the extent of photodegradation was even lower in this solvent. |
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| In spite of photodegradation in methanol, it is questionable whether hexabromobiphenyl can be degraded rapidly in air. |
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| Preparation under red light may be required when rapid photodegradation is likely to occur. |
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| There would also be a start up cost to set up to install the photodegradation UV lamp and the waiting bath for the reaction to take place. |
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| A number of laboratory-based photodegradation studies having relevance to environmental conditions were reviewed in the Ecological State of the Science Report. |
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| Beer is stored in brown or green bottles to protect hop-derived compounds from light and a process called photodegradation. |
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| In combination with UV light, high temperature will accelerate the photodegradation of many materials. |
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| They are insulated from extremes in ambient temperature, they are shielded from ultraviolet rays, and they are less exposed to photodegradation. |
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| Antisickling activity and photodegradation effect of anthocyanins extracts from Alchornea cordifolia and Crotalaria retusa. |
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| On the other hand, the plastic rings that hold six-packs of soft-drink and beer cans together represent an application where photodegradation has been used effectively. |
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| Direct photodegradation is not significant. |
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| However, other mechanisms include racemization, photodegradation, elimination, and complexation. |
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| No substantial photodegradation in soil was recorded over 31 days. |
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| This implies that the desulfinyl derivative was formed as a result of photodegradation, as fipronil in water was applied to surface soil and exposed to sunlight. |
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| The components in the waste effluents can also be degraded if they are exposed to natural sunlight, either by direct photodegradation or indirect photodegradation. |
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| Photodegradation of lincomycin and diazepam in sewage treatment plant effluent by photo-Fenton process. |
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| Photodegradation of fluoroquinolones used as antimicrobial therapies. |
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