Postfermentation wine yeast lees show antioxidant properties based on their ability to consume dissolved oxygen. The oxygen consumption capacity of suspended yeast lees obtained after fermentations with six commercial active dry yeast strains was investigated in model, white and red wines using fluorescence-based oxygen sensors operating in a nondestructive way. In model solution, the oxygen co...

He took his M.D. in 1890. He was appointed House Surgeon to the Children's Hospital, then Registrar and in 1896 Physician : he held this appointment until 1905 when he was appointed Consultant Physician. During the whole of his life, until he retired in 1946, he was in busy general practice, and endeared himself to all whom he met, patients and colleagues alike. He was an enthusiastic pioneer m...

Growth of the organisms. Nitrobacter was obtained from an Aberdeen garden soil by serial subculture in a medium made up as follows. To 10 1. ofwater were added 30 g. ofKH2P04, 1 g. of CaSO4, 0 5 g. of MgCl2, 0 01 g. of MnCl2, 0-2 ml. of dialysed iron (B.P.). By addition of lOM-NaOH, the pH was adjusted to 7-8, which is the optimum pH for the strain of Nitrobacter used (Lees, 1954). The solution...

Which self-respecting neurologist and scientist would write a book citing William Burroughs, a notorious drug-addict with frequently expressed antimedical opinions, as a source of inspiration for an entire career? Who would admit to self-experimentation with untested pharmacological agents and Amazonian hallucinogenics? ‘Mentored by a Madman’ by Andrew John Lees, one of the most respected voice...

Lees are a winery by-product with fiber-rich composition that could have potential prebiotic effect on gut microbiota. Prebiotics cannot be digested by humans but can used bacteria found in the large intestine. To evaluate of lees, they were administered to Wistar rats for 14 days. Feces collected daily, and DNA was extracted analyzed shot gun sequencing. The supplementation lees did not affect...

Succinic acid is valued as a potential starting point for the production of chemicals of the C4 family or in the preparation of biodegradable polymers. For sustainable development in this era of petroleum shortage, production of succinic acid by microbial fermentation of renewable feedstock has attracted great interest. In this study, pretreatment with sulfuric acid and biotin supplementation w...

Pear juice obtained from pear concentrate was fermented at room temperature using Saccharomyces cerevisiae (BDX, ENOFERM, France) as the fermentation microorganism. During the fermentation process, total sugars were measured. High performance liquid chromatography analyses were used to monitor the fermentation process and to characterize the pear wine. The pear wine obtained was distilled with ...