Polyphenols, phytosterols, and reducing sugars in air-cured tobacco leaves injured by ozone air pollution

Journal Article · Sat Mar 12 23:00:00 EST 1977 · Tob. Sci.; (United States)

OSTI ID:5301284

Menser, H A; Chaplin, J F; Cheng, A L.S.; Sorokin, T

Air-cured tobacco (Nicotiana tabacum L.) leaves of several production types were analyzed chemically to determine the effects of ozone-induced weather fleck on polyphenols, phytosterols, and reducing sugars. Seven domestic cultivars provided leaf samples for analysis of polyphenols and phytosterols. Quantities of chlorogenic acid, rutin, scopoletin, free quinic acid, and phytosterols were higher in severely flecked leaves than in leaves flecked only minimally. Greenhouse studies disclosed that leaves grown in carbon-filtered air analyzed as greenpunch samples contained significantly higher levels of reducing sugars than leaves grown in polluted air, regardless of plant injury.

• Research Organization: Dept. of Agriculture, Beltsville, MD
• OSTI ID: 5301284
• Journal Information: Tob. Sci.; (United States), Journal Name: Tob. Sci.; (United States) Vol. 179:6; ISSN TOSCA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
AROMATICS
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
HYDROXY COMPOUNDS
INJURIES
LEAVES
LIPIDS
METABOLISM
NICOTIANA
ORGANIC COMPOUNDS
OZONE
PHENOLS
PLANTS
POLLUTION
POLYPHENOLS
STEROIDS
STEROLS
TOXICITY