Collagen Peptides - BioReagent, Protein (Dry Basis) ≥90%

Cat. No.: C1526975

GRADE & PURITY BioReagent, Protein (Dry Basis) ≥90%

Storage

Protected from light,Room temperature

Shipped In

Normal

Vue d’ensemble

This product is a light‑yellow loose powder, free of caking, peculiar odors and visible impurities. It is prepared from tilapia fish scales by biological enzymatic hydrolysis, with collagen‑derived small‑molecule peptides as the main components. It is applicable for formula development of oral‑care cosmetics and relevant scientific research.

Specifications

Spécifications et pureté

BioReagent, Protein (Dry Basis) ≥90%

Stabilité et stockage

Store at room temperature long term (36 months). Store in the dark.

Conditions de stockage de stockage

Protected from light,Room temperature

Expédié en

Normal

Grade

BioReagent

Product Line

Produits biologiques

Propriétés chimiques et physiques

• Sensibilité: Light-sensitive

Application Protocols

General protocols (literature guidance; optimize for your system)

A. Plate or surface coating for cell interaction studies

• Prepare peptide solution at 50–200 µg/mL in PBS (for passive adsorption) or 50–100 mM MES, pH 5.5–6.0 (for covalent coupling).
• Passive adsorption: Add enough volume to cover the surface; incubate 1–2 h at 37 °C or overnight at 4 °C. Rinse with PBS before use.
• Covalent coupling (EDC/NHS to carboxylated surfaces): Activate surface with EDC (0.2 M)/NHS (0.05 M) in MES for 15–30 min; rinse; immediately add peptide (100–500 µg/mL) in MES for 1–2 h at RT; rinse; quench with 50 mM ethanolamine; exchange to PBS.

B. Preparation of peptide stock solutions

• Dissolve at 1–100 mg/mL in sterile water or buffer compatible with downstream chemistry. Filter sterilize (0.22 µm). Aliquot to avoid repeated freeze–thaw if storing cold.

C. Incorporation into hydrogels (example with PEG‑NHS)

• Dissolve PEG‑NHS in dry, amine‑free buffer (pH 7.5–8.0). Add peptide at desired molar ratio to NHS groups; mix quickly; cast before gelation. Allow curing 10–60 min. Rinse thoroughly before biological use.

Quality and controls

• Verify surface coverage via XPS, contact angle, or fluorescent labeling when possible. For cell work, confirm sterility and low endotoxin.

Item‑specific, validated protocols and concentrations are Not specified for this item; refer to CoA/Spec Sheet.

Biological Roles

General/literature context (not item-specific)

• Parent biomolecule: Collagen is the predominant structural protein in mammalian extracellular matrix (ECM), providing tensile strength and regulating cell behavior. Type I collagen is abundant in skin, tendon, and bone; Type III co‑localizes in soft tissues.
• Composition: High glycine (~33%), proline, and hydroxyproline stabilize the triple helix in native collagen. Hydrolysis yields soluble peptides exposing sequences that can interact with cell receptors.
• Cell interactions: Collagen‑derived motifs (e.g., GFOGER) bind integrins such as α1β1 and α2β1; some fragments modulate matrix metalloproteinase activity and cellular signaling in vitro (literature).
• Metabolism: In biological systems, collagen peptides are further degraded by endo‑ and exopeptidases to free amino acids; hydroxyproline is a conventional marker for collagen turnover.
• Materials biology: Incorporation of collagen peptides into synthetic matrices can influence cell adhesion, migration, and differentiation through integrin engagement and presentation of ECM‑like cues.

Caveats

• Collagen peptides are heterogeneous; biological activity depends on sequence distribution, length, and presentation (soluble vs. immobilized). Empirical validation in the intended model system is essential.

No medical or clinical claims are made here. For any cell‑contacting use, confirm sterility/endotoxin levels and perform appropriate biosafety assessments. Item‑specific bioactivity data are Not specified for this item; refer to CoA/Spec Sheet.

Buffer Applications

Applicability

• Collagen peptides are not buffering agents and are not typically used to control pH in biochemical systems.

Practical note

• When dissolving collagen peptides, select buffers compatible with downstream chemistry (e.g., MES/acetate for EDC/NHS activation; PBS/HEPES for biological assays after coupling). Typical concentrations for coatings or assays range from 10–500 µg/mL (literature guidance; optimize empirically).

Item‑specific buffer recipes or validated conditions are Not specified for this item; refer to CoA/Spec Sheet.

Green Alternatives

Context

• Collagen peptides themselves are bio‑based and biodegradable. “Greenness” considerations revolve around source sustainability, processing chemistry, and alternatives that achieve similar function with reduced environmental footprint.

Options and trade‑offs (general/literature)

• Animal‑derived collagen peptides
  • Pros: Naturally enriched in adhesion‑relevant motifs; widely available; low energy to process compared with de novo synthesis.
  • Cons: Animal sourcing, batch variability, ethical/regulatory constraints; potential for adventitious agents if not properly controlled.
• Recombinant or fermentation‑derived collagen‑like peptides
  • Pros: Animal‑free; tunable sequence and MW; high batch consistency; reduced risk of animal‑borne contaminants.
  • Cons: Higher production cost; process complexity; may lack native post‑translational hydroxyproline unless engineered.
• Synthetic short peptides (e.g., GFOGER, DGEA, RGD‑containing sequences)
  • Pros: Precise composition; minimal variability; scalable solid‑phase synthesis with green process intensification (microwave, greener solvents) possible.
  • Cons: Petroleum‑derived feedstocks; E‑factor of SPPS can be high; may not recapitulate full spectrum of collagen cues.

Process improvements (general)

• Prefer enzymatic hydrolysis over acid/thermal hydrolysis to reduce harsh reagents and byproducts.
• Utilize closed‑loop water systems and energy‑efficient drying (spray/freeze‑dry with heat recovery) when preparing in‑house solutions or films.
• Choose animal‑free, certified sources where possible to reduce ethical and biosafety concerns.

Item‑specific sourcing and processing sustainability details are Not specified for this item; refer to CoA/Spec Sheet.

Pharmaceutical Uses

Scope and limitations

• No therapeutic claims. The following discusses formulation/processing roles in a research and development context only.

General/literature roles (not item-specific)

• Excipient potential: Collagen‑derived peptides can serve as stabilizing excipients for proteins and peptides by preferential exclusion and water structuring; they may also act as bulking agents in lyophilized systems.
• Drug delivery materials: As components in hydrogels, films, or microparticles, collagen peptides can be crosslinked or blended with polymers (e.g., PEG, hyaluronan) to tailor mechanical properties and degradation profiles.
• Taste‑masking and nutraceutical matrices are known outside pharma R&D, but are outside the scope of lab research use.

Regulatory considerations

• Pharmacopeial monographs may exist for gelatin/collagen materials, but applicability depends on source, processing, and compliance testing. For this research‑grade item: Not specified for this item; refer to CoA/Spec Sheet.

Development guidance

• For preformulation, characterize MW distribution, residual salts, bioburden/endotoxin, and amino acid profile. Evaluate interactions with actives via DSC, isothermal stability, and compatibility screens.

Item‑specific compliance or excipient status is Not specified for this item; refer to CoA/Spec Sheet.

Physical Properties

Item-specific facts (from Product Data)

• Appearance: Not specified for this item; refer to CoA/Spec Sheet.

General/literature values (not item-specific)

• Physical form: Typically an off‑white to light tan, free‑flowing powder or granules; amorphous, non‑crystalline.
• Solubility: Freely soluble in water; insoluble in most organic solvents. Solutions are usually clear to slightly opalescent depending on MW and concentration.
• Typical average molecular weight distribution: Common commercial hydrolysates span ~0.3–10 kDa; many products center around 2–5 kDa (literature ranges; not specific to this item).
• pH of 1–10% aqueous solution: Often mildly acidic to neutral depending on processing and residual salts (literature; not specific to this item).
• Hygroscopicity: Moderately hygroscopic; readily absorbs moisture from air (literature).
• Taste/odor: Neutral to slightly characteristic proteinaceous odor (literature; not relevant for lab use).

Handling performance notes (general)

• Dissolution is rapid in room‑temperature water with gentle stirring; warming (≤40 °C) can accelerate dissolution but prolonged heating is unnecessary.
• Viscosity rises with concentration and average chain length; shear can reduce apparent viscosity by disrupting aggregates.
• Optical properties: UV absorbance at 214–230 nm due to peptide bonds; low absorbance at 280 nm because of low aromatic content in collagen (literature trend).

Specification reminder

• Any numeric specifications (moisture %, ash, MW profile, bioburden/endotoxin) are lot‑dependent and Not specified for this item; refer to CoA/Spec Sheet.

Quality and Grades

Item-specific facts (from Product Data)

• Grade: BioReagent

What BioReagent typically signifies (general guidance)

• Intended for research and laboratory applications, including biochemical assays, cell culture method development (when sterile and endotoxin levels are appropriate), and materials science workflows. Not for human or veterinary use.
• Emphasis on chemical identity and functional performance rather than food/pharma compliance. Typical controls (not item‑specific) may include moisture, ash, average MW distribution, microbial bioburden, and occasionally endotoxin/sterility, but the exact acceptance criteria are lot‑specific.

Considerations specific to collagen peptide reagents

• Source and processing impact performance: species/tissue origin, hydrolysis method (enzymatic vs. thermal/acid), and MW distribution affect solubility, viscosity, cell-adhesion motifs, and crosslinking reactivity.
• Stabilizers/preservatives: Many dry collagen peptide preparations contain no added stabilizers; aqueous stock solutions may require antimicrobial preservatives for extended storage. For this item, presence/absence of preservatives is Not specified for this item; refer to CoA/Spec Sheet.
• UV/background: Low aromatic residue content results in minimal absorbance at 280 nm, which can be advantageous in UV‑based assays but limits concentration determination by A280; use absorbance at 205–214 nm or total nitrogen assays instead.

Verification

• For documentation such as CoA, source statement, endotoxin/bioburden, residual salts, and MW profile for a given lot: Not specified for this item; refer to CoA/Spec Sheet.

Reaction and Applications

Scope (general/literature)

• Biomaterials and surface science: Use collagen peptides to functionalize surfaces with cell‑interactive motifs, improving adhesion and spreading. Common approaches include covalent immobilization via:
  • EDC/NHS coupling between carboxylates (on substrate or peptide) and primary amines (Lys residues or surface amines).
  • Epoxy-activated surfaces reacting with nucleophilic amines.
  • Aldehyde chemistries (e.g., glutaraldehyde) forming imines with lysine amines followed by reduction (note: can over‑crosslink; handle with care).
• Hydrogel formation: Collagen peptides can be integrated into synthetic hydrogels (PEG, hyaluronan, alginate) to introduce collagen‑derived sequences. Methacrylation of peptide amines enables photo‑polymerizable networks (literature; not item‑specific).
• Analytical/biochemical uses: Standards for hydroxyproline assays; substrates for protease activity profiling; nutrient supplements in microbial/enzymatic assays where peptide nitrogen is desired (research context only).
• Mass spectrometry/proteomics: Serve as calibration or matrix additives due to predictable 214 nm absorbance and peptide chemistry; note heterogeneity requires lot‑specific characterization when used quantitatively.

Practical tips (general)

• For covalent coupling: Work in amine‑free buffers (e.g., MES, pH 5.0–6.0) during activation; quench residual actives before switching to PBS for biological testing.
• Concentration: Typical coating solutions 10–500 µg/mL, depending on substrate and desired bioactivity; optimize empirically.
• Sterility: Filter sterilize peptide solutions (0.22 µm) for any cell‑contacting applications. Avoid repeated freeze–thaw cycles after aliquoting.

Item‑specific validated applications are Not specified for this item; refer to CoA/Spec Sheet.

Reaction Conditions

General/literature guidance (not item-specific)

• EDC/NHS amide coupling
  • Buffer: 50–100 mM MES or acetate, pH 5.0–6.0 (amine‑free).
  • Typical reagent ratios: EDC 2–10 equiv relative to surface/partner carboxyls; NHS 2–5 equiv relative to EDC.
  • Temperature/time: Ambient (20–25 °C), 15–60 min activation; 0.5–4 h coupling depending on density and diffusion.
  • Quench: 10–50 mM ethanolamine or Tris after coupling, then exchange to PBS for biological assays.
• NHS‑ester labeling (preformed NHS reagents reacting with peptide amines)
  • Buffer: 50 mM sodium bicarbonate or phosphate, pH 7.5–8.5 (avoid primary‑amine buffers during reaction).
  • Molar ratios: 2–20 equiv NHS‑ester per lysine/N‑terminus for light to heavy labeling.
  • Time: 15–60 min at RT; protect from light for chromophores.
• Reductive amination with aldehyde‑bearing substrates
  • Conditions: pH 6.5–7.5 in phosphate; NaBH3CN 5–20 mM; 2–16 h at RT.
• Enzymatic crosslinking (microbial transglutaminase)
  • Buffer: HEPES or Tris, pH 7.0–8.0; Ca2+ often not required for mTG.
  • Enzyme load: 1–10 U per gram of peptide; 1–4 h at 25–37 °C.
• Photopolymerization of methacrylated peptide conjugates
  • Initiator: LAP or Irgacure; 0.05–0.1% w/v; UV/VIS as appropriate; seconds to minutes exposure depending on thickness.

Expected outcomes

• Surface immobilization yields monolayer‑to‑submonolayer coverage improving cell adhesion; bulk coupling incorporates peptides into polymer networks.

Note: Optimize conditions empirically for each substrate and peptide lot. Item‑specific validated conditions are Not specified for this item; refer to CoA/Spec Sheet.

Safety and Handling

Item-specific hazard data

• GHS classification, pictograms, signal word, H‑statements: Not specified for this item; refer to SDS.

General laboratory safety guidance (not a substitute for the SDS)

• Expected hazards: Low acute toxicity typical of protein hydrolysates; primary risks are dust inhalation, mechanical eye irritation, and potential allergenic responses in sensitized individuals.
• PPE: Lab coat, nitrile gloves, safety glasses or goggles. Use a dust mask/respirator if airborne dust may be generated. Work in a clean area to avoid biological contamination of solutions.
• Engineering controls: Handle powders in a fume hood or ventilated enclosure to minimize dust. Employ local exhaust during weighing and dissolution.
• Incompatibilities: Strong oxidizers may modify amino acid side chains; proteases will degrade peptides; avoid contact with reactive aldehydes (e.g., glutaraldehyde) unless intentional crosslinking is desired.
• First aid (overview): If inhaled, move to fresh air; seek medical attention if symptoms persist. In case of eye contact, rinse cautiously with water for several minutes. If on skin, wash with soap and water. If ingested in the lab, rinse mouth; do not induce vomiting; seek medical advice.
• Fire safety: Organic material; may burn. Use water spray, CO2, foam, or dry chemical. Combustion can produce nitrogen oxides and carbon oxides.
• Spill response: Avoid dust formation; sweep carefully or use HEPA vacuum. For solutions, absorb with inert material and clean with water and detergent.
• Waste: Dispose according to institutional procedures for non‑hazardous organic/biological lab waste, unless contaminated.

Always defer to the product SDS for authoritative hazard classification and response measures.

Solvent Selection

Applicability

• Collagen peptides are solutes rather than solvents. Solvent selection focuses on preparing aqueous solutions and blends compatible with downstream assays or materials processing.

General/literature guidance

• Primary solvent: Water (ultrapure). Rapidly soluble at room temperature; gentle stirring is sufficient. Warming (≤40 °C) can speed dissolution.
• Buffers: Commonly dissolved in PBS, HEPES, Tris, or acetate, selected for compatibility with crosslinking chemistry (e.g., EDC/NHS prefers mildly acidic MES/acetate; amine‑reactive NHS esters avoid primary‑amine buffers like Tris during coupling).
• Ionic strength: Moderate salt (50–150 mM NaCl) can reduce nonspecific adsorption and modulate viscosity and self‑association.
• pH considerations: Maintain pH 4.5–7.4 for stability and for carbodiimide coupling to carboxylates; higher pH may promote deamidation of Asn/Gln over time.
• Cosolvents: Typically unnecessary; most organic solvents reduce solubility or denature peptide conformations. If sterile filtration is planned, choose solvent conditions compatible with the membrane (e.g., water with 0.22 µm PES).

Quick comparison (general)

• Water: maximal solubility, biocompatible; default choice.
• Acetate/MES (pH 4.5–6.0): optimal for EDC/NHS activation of carboxyl groups on peptides or on substrates.
• PBS/HEPES (pH 7.2–7.4): good for biological assays and cell contact studies post‑functionalization (do not use during NHS‑ester coupling).

Item-specific solvent recommendations are Not specified for this item; refer to CoA/Spec Sheet.

Storage and Reconstitution

Item-specific facts (from Product Data)

• Storage conditions: Protected from light, Room temperature
• Shipped in: Normal

General/literature guidance (not item-specific)

• Dry material handling: Keep container tightly closed with desiccant to limit moisture uptake. Protect from prolonged exposure to light to avoid photo‑induced modifications of sensitive residues.
• Reconstitution: Dissolve in sterile water or compatible buffer with gentle stirring at room temperature. Typical working concentrations range from 0.05–100 mg/mL depending on application. If sterility is required, filter through a 0.22 µm membrane.
• Aliquoting: For extended storage of solutions, prepare single‑use aliquots to avoid repeated freeze–thaw. Store refrigerated (2–8 °C) for short term or frozen (−20 to −80 °C) for longer term, if compatible with your application. Avoid multiple freeze–thaw cycles.
• Stability considerations: Aqueous solutions are prone to microbial growth; include appropriate aseptic technique or preservatives if compatible. Minimize exposure to extreme pH or temperatures to reduce deamidation and backbone hydrolysis.
• Compatibility: Avoid strong oxidants and proteases unless intentionally used. For crosslinking chemistries, select buffers free of interfering nucleophiles during activation steps.

Specifications such as shelf life, moisture content, bioburden/endotoxin, and recommended reconstitution concentration are Not specified for this item; refer to CoA/Spec Sheet.

Research use only: As stated by the manufacturer, this product is for research use only.

Structure and Identity

Item-specific facts (from Product Data)

• Product name: Collagen Peptides (SKU: C1526975)
• Grade: BioReagent
• CAS: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular formula: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular weight: Not specified for this item; refer to CoA/Spec Sheet.
• SMILES / InChI / InChIKey: Not applicable for heterogeneous peptide mixtures; not specified for this item; refer to CoA/Spec Sheet.

General/literature description (non‑item specific)

• Identity: Collagen peptides are a heterogeneous mixture of short peptides obtained by controlled hydrolysis of collagen (typically Type I/III from animal connective tissue) or gelatin. They lack the native triple-helix structure of intact collagen and are water‑soluble.
• Structural features: Enriched in glycine (~1/3 of residues), proline, and hydroxyproline; typical repeating motif Gly–X–Y (X/Y often Pro/Hyp) in the parent collagen. Hydrolysis produces di‑ to oligo‑peptides with free N‑termini and C‑termini, and side chains offering amines (Lys), carboxylates (Asp/Glu), and limited thiols (Cys is rare in collagen).
• 2D/sequence description: Peptide backbones comprised of amide bonds with side chains reflecting a collagenic amino acid profile; mixture exhibits broad sequence and length distribution rather than a single defined structure.

Notes

• As a complex mixture, a single canonical structure, SMILES, or exact average formula cannot be assigned. For lot‑specific attributes (source species, average MW distribution, residual salts), consult the CoA/Spec Sheet.

Synthetic Utility

General/literature perspective

• Functional groups: Primary amines (N‑termini and Lys ε‑amines), carboxylates (C‑termini and Asp/Glu), hydroxyls (Ser/Thr/Tyr), guanidinium (Arg), imidazole (His), and limited thiols (Cys, rare in collagen). These enable a wide range of bioconjugation chemistries.
• Representative transformations:
  • Carbodiimide coupling (EDC/NHS) to form amide bonds with carboxyl‑bearing substrates/polymers.
  • NHS‑ester acylation of lysine ε‑amines to attach dyes, linkers, or polymerizable groups (e.g., methacrylates for photo‑curing).
  • Aldehyde/Schiff base formation with glutaraldehyde or periodate‑oxidized polysaccharides followed by reductive amination.
  • Enzymatic crosslinking with microbial transglutaminase (Lys–Gln isopeptide bonds) when suitable residues are present.
  • Click‑compatible handles can be introduced (e.g., NHS‑azide) for CuAAC or SPAAC after initial modification.
• Retrosynthetic value: Serves as a collagen‑mimetic cue donor in hybrid biomaterials; easier handling than native collagen while maintaining ECM‑like chemistry.

Practical considerations

• Maintain amine‑free activation buffers (MES/acetate) during EDC/NHS steps; remove unreacted actives before introducing amine‑containing buffers.
• Control degree of substitution to preserve bioactivity; excessive modification of Lys may reduce cell‑adhesive properties.
• MW distribution influences diffusivity and network formation; select lots accordingly for coating vs. bulk hydrogel applications.

Item‑specific functional group content or substitution levels: Not specified for this item; refer to CoA/Spec Sheet.

Target Specificity

Not applicable

• This product is not an antibody or affinity reagent with defined antigen/epitope specificity. No clone, isotype, or species reactivity applies.

Any affinity interactions described elsewhere (e.g., integrin binding to collagen‑derived motifs) are general literature context and not item‑specific performance claims.