Abstract
Values for the ultimate biodegradability of alkyl polyglycoside (APGs) were determined using three different microorganisms. Acute toxicity tests were performed on aquatic organisms in fresh and sea water. The biodegradability of APG based on biochemical oxygen demand (BOD) and dissolved organic carbon (DOC) was 73∼89% and 74∼99%, respectively. High performance liquid chromatographic (HPLC) and gel permeation chromatographic (GPC) analyses indicated the disappearance of nearly all test substances. Branched alcohols and differences in alcohol chain length in the APG chemical structure are considered to be without effect on biodegradability. APGs were shown to rapidly and ultimately undergo biodegradation in an aquatic environment. The 96 h LC 50 values of APG were 96∼115 mg/L for fresh water red killifish (Oryzias latipes), 50 mg/L for sea water adapted red killifish and 15 mg/L for mysid shrimp (Mysidopsis bahia), indicating relatively weak toxicity among surfactants. It follows from the present results that ecotoxicological risk of APGs is likely quite low and APGs may have good environmental compatibility in the aquatic ecosystem
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
