bran
Enable an agent to recognise cereal bran, assess a particular lot's condition and suitability, and determine what handling, processing or use is justified by available evidence.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise cereal bran, assess a particular lot's condition and suitability, and determine what handling, processing or use is justified by available evidence.
Bran is a cereal-milling fraction consisting predominantly of the grain's outer tissues, including pericarp, seed coat and usually aleurone, with variable amounts of adhering endosperm and germ.
It can be Identify and classify a bran lot using grain origin, milling stream and tissue evidence.; Compare lots on a consistent analytical basis for purchasing, blending or formulation.; Select sampling and testing needed to resolve identity, condition or intended-use uncertainty.; Assess whether grinding, sieving, stabilisation or another treatment is appropriate for the declared destination.; Assign storage and handling conditions supported by the lot's properties and treatment evidence.; Release, segregate, redirect or reject a lot against an explicit use specification..
Distinguishing features
Identify it as a cereal milling fraction associated with the grain's outer tissues, using a grain-specific description rather than colour or trade name alone.
Distinguish bran from husk or hull by recording which anatomical tissues the fraction contains and how they were separated.
Distinguish bran from flour and milling middlings through the declared separation stream and evidence of tissue composition; fibre content alone does not establish identity.
Distinguish bran from isolated germ while allowing recorded germ carryover in a commercial bran fraction.
Distinguish the bran material from a formulated product or purified extract by recording additions and the extent of fractionation.
Scope
+ Cereal species, source grain and lot identity
+ Identity of the separated grain fraction and residual germ or endosperm
+ Composition, particle properties and measurement basis
+ Milling, stabilisation and subsequent treatment history
+ Storage condition, contamination evidence and suitability for a declared use
- Cultivation and biological identity of the cereal crop
- Whole grain, flour, germ and husk as separately identified materials
- Milling equipment and operation of the mill
- Finished foods, formulated feeds and supplements containing bran
- Extracted bran oil, purified fibre and other isolated derivatives
- Clinical outcomes of bran consumption and complete animal feeding programmes
Characteristics
- Source cereal
- Identified cereal species; cultivar and mixed-grain proportions where known The meaning of the bran fraction and its expected composition depend on the source grain.
- Anatomical and milling fraction
- Declared tissues, separation stream and applicable commercial grade Establishes whether the material is bran and separates it from neighbouring milling products.
- Residual germ and endosperm
- Mass fraction (%) where measured; identification method and uncertainty Carryover can affect composition, processing behaviour and storage stability.
- Moisture and water activity
- Moisture mass fraction (%), stating basis and method; water activity (dimensionless) at stated temperature Supports assessment of storage behaviour and comparison against the intended-use specification.
- Composition profile
- Dietary fibre, starch, protein, lipid and ash in g/100 g, with analytical method and as-received or dry-matter basis Makes nutritional and technical comparisons meaningful without assuming all bran has the same composition.
- Particle-size distribution
- Sieve fractions (%) or distribution percentiles in µm, with method Affects texture, hydration, separation and handling.
- Treatment state
- Untreated, heat-treated, stabilised, defatted, fermented or other declared treatment; verification status Treatment may alter functionality and condition, and its success requires evidence.
- Deterioration indicators
- Sensory observations and relevant lipid or microbiological results, each with method, units and sampling date Supports a lot-specific assessment of deterioration rather than relying on age alone.
- Contaminant and foreign-material status
- Untested, pending, compliant or noncompliant against a named specification, with linked results Separates missing evidence from demonstrated suitability.
- Declared use and grade
- Food ingredient, feed material, industrial input or other declared use; jurisdiction and specification Acceptance criteria depend on the destination and cannot be inferred from the word bran.
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.bran-food
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 17 findings · 27 questions.
Bran identity and boundaries Establishes what grain fraction the material represents.
A bran trade name does not by itself distinguish cereal origin, anatomical content or adjacent milling fractions.
Cereal origin
Connects the bran to its source grain.
Source grain identity
Record the cereal identity and evidence for single-grain or mixed-grain origin.
- Which cereal species supplied this bran, and is the lot a mixture? definition
- Which supplier or mill records support the declared grain origin? provenance
Fraction boundary
Separates bran from husk, flour, germ and composite milling products.
Tissues and separation stream
Record the intended tissue fraction, actual milling stream and known carryover without imposing a universal purity threshold.
- Which grain tissues and mill separation stream define this material as bran? definition
- What evidence distinguishes this lot from husk, germ, flour or middlings? boundary
Bran composition and functionality Describes measured composition and physical behaviour relevant to use.
Bran is a heterogeneous fraction whose analytical basis and particle properties affect comparisons and formulation.
Composition basis
Makes composition results interpretable across lots.
Measured constituent profile
Record fibre, starch, protein, lipid and ash results with methods and moisture basis.
- What constituent concentrations were measured, and are they reported as received or on a dry-matter basis? measurement
- Which fibre method was used, and does it distinguish the fractions needed for the intended use? measurement
Particle and hydration behaviour
Captures how the bran behaves during handling and incorporation.
Size and water interaction
Record particle distribution and application-relevant hydration behaviour under specified test conditions.
- What is the particle-size distribution, and how was it measured? measurement
- What water-holding or swelling behaviour is demonstrated under conditions relevant to the intended application? measurement
Milling and treatment history Connects the lot's present properties to its separation and subsequent processing.
Milling and treatment can change bran composition, functionality and stability while leaving the commercial name unchanged.
Lot formation
Tracks separation, collection and blending of the bran.
Mill stream and blend lineage
Record production dates, contributing streams and blends that define the lot.
- When and from which milling streams was this bran lot collected? provenance
- Was it blended with other bran lots or milling fractions, and are their identities and proportions recorded? provenance
Post-milling treatment
Distinguishes declared processing from demonstrated treatment outcomes.
Treatment and retained identity
Record stabilisation, grinding, defatting or other treatments and whether the resulting material remains within the bran boundary.
- Which treatments were applied, under what conditions, and what evidence verifies their intended effect? provenance
- Does the treatment leave a bran material, or produce an extract or formulated ingredient requiring a neighbouring model? boundary
Storage condition and contaminants Assesses deterioration, storage exposure and lot-specific contamination evidence.
Bran suitability depends on its condition and test coverage as well as its declared composition.
Storage and deterioration
Relates storage history to current moisture, sensory and analytical observations.
Current stability evidence
Record packaging, environmental exposure and signs or measurements of deterioration.
- What storage duration, temperature, humidity and packaging history are documented for this lot? provenance
- What moisture, water activity, odour or relevant deterioration results describe its current condition? measurement
Contaminant evidence
Captures testing selected for the source cereal, supply chain and destination.
Sampling and test coverage
Record applicable mycotoxin, residue, microbiological and foreign-material checks with sampling scope and detection limits.
- Which contaminants and foreign materials require assessment for this cereal origin and intended use? boundary
- How was the lot sampled, what were the results and detection limits, and which required checks remain untested? measurement
Use qualification and disposition Connects evidence about the bran to a specific destination and handling decision.
A lot acceptable for one use is not automatically qualified for another, and treatment labels alone do not establish acceptance.
Destination specification
Defines the requirements for the proposed food, feed or industrial use.
Grade and acceptance criteria
Record the applicable specification, cereal-related declarations and evidence required for acceptance.
- Which intended use, jurisdiction and buyer specification govern acceptance of this bran? definition
- What composition, cereal-allergen, cross-contact and treatment declarations are required, and which are supported? boundary
Lot disposition
Determines the next justified action for the material.
Release or further work
Link release, additional testing, processing, segregation or rejection to explicit evidence and unresolved requirements.
- Does the available evidence justify release for the declared use, or must the lot remain segregated pending specific checks? action
- If further processing or redirection is proposed, what acceptance criteria and verification must it satisfy? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- This describes cereal bran as a variable biological material, not a chemically pure substance with a single formula or universal set of physical constants.
- Composition depends on grain species, milling method and stabilization or oil extraction; numerical ranges require a specified product and analytical method.
- Regulatory applicability and current commodity definitions require verification; the named references are recalled, not researched.
- Which of these check these first hold for the sense of bran this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Wheat bran
- Rice bran
- Oat bran
- Maize bran
- Rye bran
- Barley bran
- Which of these kinds and varieties hold for the sense of bran this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- Codex Alimentarius Commission: General Standard for Contaminants and Toxins in Food and Feed (CXS 193-1995), with applicability determined by commodity and intended use.
- European Union: Catalogue of Feed Materials, established by Commission Regulation (EU) No 68/2013, includes descriptions of cereal-derived feed materials.
- Which of these standards and regulation hold for the sense of bran this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Dietary-fibre ingredient in breads, breakfast cereals and other foods.
- Feed ingredient for livestock.
- Raw material for rice bran oil extraction.
- Substrate for microbial fermentation and enzyme production.
- Source of fibre-rich fractions and other extracted cereal components.
- Which of these real-world use hold for the sense of bran this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Lipid hydrolysis and oxidation can cause rancidity, particularly in unstabilized rice bran.
- Moisture uptake during storage can promote mould growth and spoilage.
- Mycotoxins and some other grain contaminants can become concentrated in bran during milling.
- Airborne bran dust can irritate the respiratory tract and form combustible dust clouds.
- Bran can retain cereal allergens; wheat, rye and barley bran are unsuitable for a gluten-free diet.
- Which of these failure modes and hazards hold for the sense of bran this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Commercial definitions and permitted composition of bran differ among food and feed markets.
- The dominant grain source varies with regional cereal production and milling practices.
- Which of these regional variation hold for the sense of bran this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Husk - A husk is an enclosing floral covering removed during dehulling; bran primarily comprises tissues of the grain itself.
- Germ - Germ is the grain's embryo; bran is predominantly its outer tissue fraction.
- Refined flour - Refined flour consists predominantly of milled endosperm, whereas bran is enriched in outer grain tissues.
- Whole-grain flour - Whole-grain flour retains bran, germ and endosperm in their original relative proportions; bran is a separated fraction.
- Wheat middlings - Wheat middlings are a mixed milling feed fraction containing bran particles and substantial endosperm material, rather than predominantly separated bran.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of bran this model covers, and on what evidence? provenance
What the second pass must settle
- Which authoritative grain-specific definitions distinguish bran from husk, pollard, middlings and related commercial milling fractions?
- Which analytical methods and reference ranges are appropriate for comparing bran from different cereals without implying universal composition limits?
- What evidence establishes effective stabilisation and storage life for each cereal origin, treatment and packaging combination?
- Which contaminant limits, sampling rules and cereal-related declarations apply to each intended use and jurisdiction?
- At what degree of defatting, fermentation or fractionation should the resulting material be represented as a bran subtype versus a separate derivative?