Shelf-Life and Quality Changes in Summer Storage Onions (Allium cepa)
β Scribed by W. C. HURST; R. L. SHEWFELT; G. A. SCHULER
- Book ID
- 108811224
- Publisher
- Institute of Food Technologists
- Year
- 1985
- Tongue
- English
- Weight
- 384 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0022-1147
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The major Γavonoids of mature onion bulb were conΓrmed as the 3,4@-O-diglucoside (Qdg) and 4@-O-monoglucoside (Qmg) of quercetin using a combination of chromatographic comparisons, mass spectrometry and nuclear magnetic resonance spectroscopy. These two components account for over 85% of the total Γ
## Abstract **BACKGROUND:** Firmness in vegetables is an important textural attribute affecting consumer attitudes toward freshness and quality. Firmness, structural carbohydrates, polygalacturonase (PG), and pectin methylesterase (PME) activity were measured in three onion (__Allium cepa__ L.) lin