A lipid-soluble antioxidant from polyallomer centrifuge tubes

Santowhite, a commercial antioxidant used in the manufacture of polypropylene, contaminates 12-ml polyallomer tubes to the extent of 0.2–0.3 mg/tube. It is distributed through the plastic and appears as a microscopic dust on the tubes' surfaces. In the preparation of polysomes from rat liver by...

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Main Authors: Clyde E. Opliger, Peter C. Heinrich, Robert E. Olson
Format: Article
Language:English
Published: Elsevier 1974-05-01
Series:Journal of Lipid Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520368073
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author Clyde E. Opliger
Peter C. Heinrich
Robert E. Olson
author_facet Clyde E. Opliger
Peter C. Heinrich
Robert E. Olson
author_sort Clyde E. Opliger
collection DOAJ
description Santowhite, a commercial antioxidant used in the manufacture of polypropylene, contaminates 12-ml polyallomer tubes to the extent of 0.2–0.3 mg/tube. It is distributed through the plastic and appears as a microscopic dust on the tubes' surfaces. In the preparation of polysomes from rat liver by standard methods, approximately 15% of the antioxidant in previously water-washed tubes was removed by suspension of the polysome pellet with stirring in 1–2 ml of Tris buffer, pH 7.8. The polyallomer impurity has been shown to be identical with Santowhite, which is 4,4′-butylidene-bis(6-tert-butyl-m-cresol), by UV, mass, and NMR spectra. It is not uniformly removed from polyallomer tubes by common detergents but is removed by washing with acetone, to which the plastic is resistant.
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spelling doaj.art-8d4945a5a3884270aa9d01e5fb847d6d2022-12-21T18:54:00ZengElsevierJournal of Lipid Research0022-22751974-05-01153281283A lipid-soluble antioxidant from polyallomer centrifuge tubesClyde E. Opliger0Peter C. Heinrich1Robert E. Olson2Department of Biochemistry, St. Louis University School of Medicine, St. Louis, Missouri 63104 and; Department of Vitamin and Nutrition Research, The Hoffmann-La Roche Laboratories, Basel, CH 4002, SwitzerlandDepartment of Biochemistry, St. Louis University School of Medicine, St. Louis, Missouri 63104 and; Department of Vitamin and Nutrition Research, The Hoffmann-La Roche Laboratories, Basel, CH 4002, SwitzerlandDepartment of Biochemistry, St. Louis University School of Medicine, St. Louis, Missouri 63104 and; Department of Vitamin and Nutrition Research, The Hoffmann-La Roche Laboratories, Basel, CH 4002, SwitzerlandSantowhite, a commercial antioxidant used in the manufacture of polypropylene, contaminates 12-ml polyallomer tubes to the extent of 0.2–0.3 mg/tube. It is distributed through the plastic and appears as a microscopic dust on the tubes' surfaces. In the preparation of polysomes from rat liver by standard methods, approximately 15% of the antioxidant in previously water-washed tubes was removed by suspension of the polysome pellet with stirring in 1–2 ml of Tris buffer, pH 7.8. The polyallomer impurity has been shown to be identical with Santowhite, which is 4,4′-butylidene-bis(6-tert-butyl-m-cresol), by UV, mass, and NMR spectra. It is not uniformly removed from polyallomer tubes by common detergents but is removed by washing with acetone, to which the plastic is resistant.http://www.sciencedirect.com/science/article/pii/S0022227520368073polysomesSantowhitelipid analysis
spellingShingle Clyde E. Opliger
Peter C. Heinrich
Robert E. Olson
A lipid-soluble antioxidant from polyallomer centrifuge tubes
Journal of Lipid Research
polysomes
Santowhite
lipid analysis
title A lipid-soluble antioxidant from polyallomer centrifuge tubes
title_full A lipid-soluble antioxidant from polyallomer centrifuge tubes
title_fullStr A lipid-soluble antioxidant from polyallomer centrifuge tubes
title_full_unstemmed A lipid-soluble antioxidant from polyallomer centrifuge tubes
title_short A lipid-soluble antioxidant from polyallomer centrifuge tubes
title_sort lipid soluble antioxidant from polyallomer centrifuge tubes
topic polysomes
Santowhite
lipid analysis
url http://www.sciencedirect.com/science/article/pii/S0022227520368073
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