Effect of Rhamnolipids on Growth of Pseudomonas aeruginosa Mutant Deficient in n-Paraffin-utilizing Ability |
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Authors: | Seiga Itoh Takeo Suzuki |
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Affiliation: | Tokyo Research Laboratory, Kyowa Hakko Kogyo, Co., Ltd., Machida-shi, Tokyo, Japan |
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Abstract: | Egg white solids freeze-dried with or without the addition of glucose were stored at 50°C under 65 % relative humidity to study the effect of the Maillard reaction on the solubility and heat stability and the formation of aggregates. A stimulative effect on the former properties was observed on the sample with glucose in the initial stage of the Maillard reaction. By comparing the SDS-polyacrylamide gel electrophoretic patterns, solubilities in SDS and SDS/2-mercaptoethanol and the s20,w values, it was found that glucose, in addition to the effect due to the changes of charged groups in glucose-protein complex occurring in the course of the Maillard reaction, might have a protective effect against aggregate formation through a stable cross-linking, which was not dependent on the SS bond, and through a stable non-covalent bond. |
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