xylose
C2technical/scientific
Definition
Meaning
A pentose sugar (C₅H₁₀O₅) derived from woody plant materials.
A reducing sugar, classified as an aldopentose, used as a sweetener in some dietary products and as a substrate in microbiological research. It is a component of hemicellulose in plants.
Linguistics
Semantic Notes
The term is almost exclusively used within chemistry, biochemistry, food science, and microbiology. It does not have figurative or everyday metaphorical meanings.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. Pronunciation may differ subtly (see IPA).
Connotations
None beyond the scientific context.
Frequency
Equally low-frequency in both varieties, confined to specialist fields.
Vocabulary
Collocations
Grammar
Valency Patterns
[noun] + of xylosexylose + [verb (e.g., is absorbed, is converted)][adjective] + xyloseVocabulary
Synonyms
Neutral
Weak
Usage
Context Usage
Business
Rare, potentially in biotech or food ingredient supply contexts.
Academic
Common in biochemistry, microbiology, and food science papers and textbooks.
Everyday
Virtually never used.
Technical
The primary context of use.
Examples
By Part of Speech
adjective
British English
- The xylose-based medium supported the yeast's growth.
American English
- The xylose-containing broth was prepared for the assay.
Examples
By CEFR Level
- Xylose is a natural sugar found in plants.
- Some bacteria can ferment xylose.
- The D-xylose absorption test is used to diagnose malabsorption syndromes.
- Metabolic engineers are developing yeast strains that efficiently convert xylose into ethanol.
Learning
Memory Aids
Mnemonic
Think: 'XYLophone' is made of wood, and 'XYLose' is a sugar from wood.
Conceptual Metaphor
N/A - technical term with no common conceptual mapping.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Не путать с 'ксилол' (xylene) - химический растворитель.
- Не переводить дословно как 'ксилоза' без контекста, так как в неспециальной речи это слово неизвестно.
Common Mistakes
- Misspelling as 'xylos', 'xilose', or 'zylose'.
- Incorrect pronunciation stressing the second syllable (e.g., /zaɪˈloʊs/).
- Confusing it with sucrose or glucose in general discussions about sugars.
Practice
Quiz
Xylose is best described as a...
FAQ
Frequently Asked Questions
No, xylose is a sugar (aldopentose), while xylitol is a sugar alcohol derived from xylose, used as a sweetener.
Humans absorb xylose in the small intestine but do not metabolize it for energy efficiently; it is mostly excreted, which is why it's used in medical tests.
It is a primary component of hemicellulose in plant cell walls, abundant in materials like straw, corn cobs, and hardwood.
It is a major sugar in lignocellulosic biomass. Efficient fermentation of xylose to ethanol is crucial for economically viable second-generation biofuel production from non-food plant waste.
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