erucic acid
C2/SpecialistTechnical/Scientific
Definition
Meaning
A monounsaturated omega-9 fatty acid (C22:1) found primarily in seeds of plants from the Brassicaceae family, like rapeseed and mustard seed.
A fatty acid of significant nutritional and industrial interest due to its historical presence in some edible oils and its potential adverse health effects at high consumption levels. It is now widely regulated in food oils.
Linguistics
Semantic Notes
The term is almost exclusively used in scientific (chemistry, nutrition, food technology), regulatory, and agricultural contexts. It is not part of everyday vocabulary.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage. Both use 'erucic acid' identically in technical contexts.
Connotations
Connotes potential toxicity, historical food safety issues (e.g., 'rapeseed oil' vs. modern 'canola oil'), and regulatory standards.
Frequency
Equally low frequency in general language, but standard in the relevant scientific and industrial fields in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
The oil [VERB] a high concentration of erucic acid.Erucic acid [VERB] been linked to health concerns.Regulations [VERB] the erucic acid content.Vocabulary
Synonyms
Neutral
Usage
Context Usage
Business
Used in the context of commodity trading (e.g., 'low-erucic acid rapeseed oil'), food labeling regulations, and quality specifications for edible oils.
Academic
Central in papers on lipid chemistry, food safety history, plant breeding (e.g., development of canola), and toxicology studies.
Everyday
Virtually never used. A consumer might encounter it in highly technical articles about cooking oils or food safety.
Technical
The primary domain. Used in analytical chemistry reports, food standard specifications (e.g., EU, Codex Alimentarius), and agronomy research.
Examples
By Part of Speech
noun
British English
- Traditional rapeseed oil had a high percentage of erucic acid.
- The limit for erucic acid in infant formula is strictly enforced.
American English
- Canola is defined as rapeseed bred for low erucic acid.
- The study measured myocardial erucic acid deposition.
Examples
By CEFR Level
- Some old types of cooking oil contained erucic acid.
- Modern canola oil was developed to have very low levels of erucic acid.
- Regulatory agencies set maximum limits for erucic acid in food products due to its potential cardiotoxic effects.
Learning
Memory Aids
Mnemonic
Erucic Acid = Found in **Eru**ca (rocket/arugula) and mustard seeds; think **'Ew, risky?' acid'** due to its historical health concerns.
Conceptual Metaphor
A CONTAMINANT/LEGACY COMPONENT (in food contexts); a CHEMICAL MARKER (in plant biology).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- False friend: 'кислота' (kislota) is correct for 'acid', but the entire term 'эруковая кислота' is a direct loan and highly specialized. No trap beyond recognizing it as a technical term.
Common Mistakes
- Mispronunciation: /eˈruːsɪk/ instead of /ɪˈruːsɪk/.
- Misspelling: 'euricic acid', 'erusic acid'.
- Confusing it with 'uric acid' (a completely different compound found in urine).
Practice
Quiz
Why is erucic acid significant in food history?
FAQ
Frequently Asked Questions
In high, chronic doses, it has shown toxic effects in animal studies, primarily on the heart. This led to regulations limiting its content in human food oils. The low levels in modern, regulated oils like canola are considered safe.
Canola oil is made from a cultivar of rapeseed (Brassica napus) that was specifically bred in Canada to have very low levels of erucic acid (and low glucosinolates). The name 'canola' comes from 'CANada Oil, Low Acid'.
It is found in the seeds of plants in the Brassicaceae family, especially in older varieties of rapeseed, mustard seed, and wallflower seed.
Yes. Oils high in erucic acid (like high-erucic acid rapeseed oil, HEAR) are valuable industrial feedstocks. They are used to produce erucamide (a slip agent for plastics), behenyl alcohol (for cosmetics), and other oleochemicals.