Study for Sculpture I

Study for Sculpture I, lithograph, ed. 9/100. Note: A native of the Bronx, New York City, Lipton was primarily a sculptor who was interested in Abstract Expressionism. This lithograph was probably made from a study for one of his pieces. The Smithsonian American Art Museum in Washington D.C. owns at least thirteen such examples done in oil crayon on paper. Vanderbilt University in Nashville, Tennessee, also has this same print in its collection. Artwork acquired with the assistance of the Martin S. Ackerman Foundation.https://digitalcommons.wku.edu/km_prints/1089/thumbnail.jp

Potato Peel Waste: Stability and Antioxidant Activity of a Freeze-Dried Extract

Aqueous extracts of potato peel waste were freeze-dried. High performance liquid chromatography (HPLC) of the freeze-dried extracts revealed that chlorogenic (50.31%), gallic (41.67%), protocatechuic (7.81%), and caffeic (0.21%) acids were the major phenolics. During 15 days storage of the freeze-dried extract, no degradation of phenolics occurred. After 4 days storage at 63°C, 5.00g of sunflower oil containing either the freeze-dried extract (200 ppm) or butylated hydroxyanisole (BHA) (200 ppm) reached peroxide values (PV) of 37.38 and 37.47 meq kg-1 respectively. L-ascorbic acid-6-palmitate was the best antioxidant (PV= 10.65 meq kg-1) but the freeze-dried extract was as good as BHA