EuroFIR Component Thesaurus Update and Discussion Points Ian Unwin IDUFIC and Anders Mller DFI Compi

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EuroFIR Component ThesaurusUpdate and
Discussion PointsIan Unwin (IDUFIC) and Anders
Møller (DFI)Compiler Network
Meeting,Florence, May 2009
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Accessing the Component Thesaurus
Technical website thesauri page
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Accessing the Component Thesaurus
Thesaurus Manager viewing and reporting thesauri
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Component Thesaurus
Component group polyhierarchy
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Component Thesaurus
Fatty acids, general GRP_FAGEN
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Component Thesaurus
Fatty acid, gamma-linolenic acid F183CN6
Alternative names
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Component Thesaurus
Fatty acid, gamma-linolenic acid F183CN6
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Component Thesaurus
Oligosaccharides GRP_OLIGO and polysaccharides
GRP_PSAC
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Component Thesaurus
Vitamins, alpha-tocopherol TOCPHA
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Component Thesaurus
Vitamins, 5-formyltetrahydrofolic acid FOLH4FM5
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Component Thesaurus
Discussion points

• Coverage
• Needs to include all components for which data
  are managed
• Coverage / completion of version 1.1
• Mark components not in version 1.1 as inactive
• Include current priorities 1 to 4
• Coverage of contributing components
• Scope note total STARCH starch, dextrins
  (DEXTN) and glycogen (GLYC)
• MI0369 TOCPHA intrinsic d-TOCPHA 0.5 x
  (added TOCPHA)
• eBASIS components to be added (with
  non-meaningful numeric codes)
• Codes as EBnnnn

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Component Thesaurus
Discussion points

• Hierarchy
• Are the groupings helpful or can they be improved
• e.g. Vitamin B components (GRP_VITB)
• Is multiple linking (polyhierarchy) used
  appropriately
• CARTB in GRP_CARTVA and GRP_VITA, but not in
  GRP_FADD
• ß-Carotene is in both the classes Carotenoids,
  vitamin A active and Vitamin A components, but
  currently is not included under Food additives
• DEXTN in GRP_OLIGO or GRP_PSAC
• A value for dextrins may report data for
  oligosaccharides, for polysaccharides or a
  mixture of both. It is in both the groups for
  Oligosaccharides and Starch

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Component Thesaurus
Discussion points

• Fatty acid definitions
• What does n-notation imply
• Just position or also cis configuration
• In FAPU, just position of end double bond or also
  methylene separated double bonds
• What is a trans polyunsaturated fatty acid
• At least one trans double or all double bonds
  trans
• Above definitions impact on
• Totals such as fatty acids, total trans n-6
  (FATN6)
• Requirement for multiple terms
• all of F181N6, F181CN6 and 181TN6 or just
  F181CN6 and 181TN6
• both F183N6 and F183CN6 or just F183CN6
• or does F183N6 F183CN6 F183TN6

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Component Thesaurus
Discussion points

• Fatty acid codes
• Conjugated linoleic acids
• Previously just fatty acid 182 conjugated
  (F182CON) but have added
• Principle All positions indicated by the code
  are counted from the CO2H end except any
  n-notation, which comes after all other
  positional information

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Component Thesaurus
Discussion points

• Fatty acid codes
• What is fatty acid 182 iso (F182ISO)
• Use of fatty acid 223 n-3 all-cis (F223CN3) but
  fatty acid 242 n-6 (F242N6)
• For remainders, fatty acids, monounsaturated,
  remainder is FAMSXR, not FAMSR, changed from
  FAMUXR
• Totals such as fatty acid 150 170 (F1517)
  made invalid

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Component Thesaurus
Discussion on requirements

• Thesaurus completion
• core nutrients (scope notes and additional
  information)
• new ChEBI entries
• eBASIS bio-active components
• new INFOODS and other components
• tagname workshop at 8IFDC in Bangkok
• Thesaurus maintenance
• decision making
• updating in Thesaurus Manager
• (ChEBI entries)

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Component Thesaurus
Discussion Benefits and Tasks

• Member benefits
• viewing Component Thesaurus hierarchy in
  Thesaurus Manager
• including links to ChEBI for structures and other
  information
• Component Thesaurus listings
• review and implementation of requests for new
  components
• discussion forum on general and specific issues
  relating to components
• Tasks
• Thesaurus completion EuroFIR project according
  to resources
• Thesaurus maintenance EuroFIR AISBL
• decision making significant part of Compiler
  Network activities
• implementation in Thesaurus Manager
  insignificant