---
title: "Bulk Mushroom Extract Sourcing Guide: How to Evaluate Specifications, Quality and Suppliers"
url: https://www.nourishingr.net/bulk-mushroom-extract-sourcing-guide/
date: 2026-10-15
modified: 2026-10-15
lang: en
author: "green"
description: "Introduction Sourcing mushroom ingredients for dietary supplements and capsule manufacturing involves more than selecting a species and requesting a price. Buyers need to understand the relationship between raw material identity,..."
categories:
  - "Ingredient Sourcing Guide"
  - "Insights"
image: https://www.nourishingr.net/wp-content/uploads/2026/09/lions-mane-powder-1024x1024.png
word_count: 4121
---

# Bulk Mushroom Extract Sourcing Guide: How to Evaluate Specifications, Quality and Suppliers

## Introduction

Sourcing mushroom ingredients for dietary supplements and capsule manufacturing involves more than selecting a species and requesting a price. Buyers need to understand the relationship between raw material identity, extraction method, extraction ratio, marker specifications, documentation, testing, supply capacity, and delivery requirements.

Two mushroom ingredients carrying the same common name may differ in species, source material, processing method, carrier content, and analytical specifications. An extraction ratio such as 8:1 can also be interpreted differently by different suppliers unless its basis is clearly defined.

These differences can affect specification comparisons, formulation decisions, purchasing costs, and the suitability of a material for a particular product development program.

For US supplement brands, contract manufacturers, and capsule producers, a structured sourcing process helps reduce ambiguity before committing to a bulk order.

Nourish Ingredients supports B2B buyers by coordinating ingredient sourcing, specification matching, supplier documentation, sample requests, testing arrangements, and shipping inquiries. Availability, specifications, documentation, and commercial terms are confirmed for each product and project rather than assumed across an entire ingredient category.

This guide explains how to evaluate six commonly requested mushroom ingredients, review extraction specifications and Certificates of Analysis (COAs), compare suppliers, and prepare an effective bulk sourcing request.

## 1. What Buyers Should Define Before Sourcing Mushroom Ingredients

Before requesting quotations, establish a clear technical and commercial brief. A supplier can only provide a meaningful comparison when the requested material is adequately defined.

### 1.1 Species and botanical identity

Start with the scientific name, not only the common name.

For example:

- Lion’s Mane: *Hericium erinaceus*
- Cordyceps militaris: *Cordyceps militaris*
- Reishi: *Ganoderma lucidum*
- Turkey Tail: *Trametes versicolor*, also known in some contexts as *Coriolus versicolor*
- Shiitake: *Lentinula edodes*
- King Trumpet: *Pleurotus eryngii*

Confirm the scientific identity in the product specification and supporting documentation. Common names alone may not be sufficient to distinguish materials with different identities or processing histories.

### 1.2 Powder, extract powder, or another ingredient form

Clarify whether you need:

- Mushroom powder made from processed mushroom material;
- Mushroom extract powder produced through an extraction process;
- A standardized extract with a defined marker or assay specification; or
- Another form suitable for your manufacturing process.

These terms should not be treated as interchangeable. A mushroom powder is not automatically equivalent to an extract powder, and an extract ratio does not by itself establish the concentration of a particular constituent.

### 1.3 Target quantity and supply schedule

State your required quantity, expected annual demand if known, and target delivery date.

For larger projects, ask the supplier to distinguish among:

- Material currently available for allocation;
- Material that may be sourced from an existing supplier;
- Material that requires new production; and
- Material that requires additional testing or documentation before release.

A statement that a product is available for sampling does not establish that the same specification is available in the required bulk quantity.

### 1.4 Destination and delivery terms

For US-bound orders, provide the destination city and ZIP code where possible. Ask for a quotation that identifies the applicable shipping arrangement, freight charges, duties or other charges where applicable, and the assumptions behind the quoted delivery terms.

A product price alone does not represent the complete landed cost.

## 2. Six Mushroom Ingredients: What to Clarify in the Specification

The following six materials can be submitted for sourcing evaluation through a project-specific inquiry. Their exact specifications, supply status, and documentation must be confirmed individually.

### 2.1 Lion’s Mane Extract Powder

**Scientific name:** *Hericium erinaceus*

Lion’s Mane is commonly discussed in the dietary supplement ingredient market. Buyers may encounter mushroom powder and extract powder products with different processing methods and specification profiles.

For a requested 8:1 water extract powder, confirm:

- Whether the material is specifically an extract powder;
- Whether water is the extraction solvent or the principal extraction medium;
- How the 8:1 ratio is calculated;
- Whether the ratio is based on fresh or dried starting material;
- Whether the source material is fruiting body, mycelium, or another defined material;
- Whether a carrier or processing aid is present;
- Which identity, assay, or other quality tests are documented.

Do not assume that every product described as Lion’s Mane 8:1 has the same ratio basis, composition, or manufacturing process.

Relevant product page: [bulk Lion’s Mane extract](https://www.nourishingr.net/products/lions-mane-mushroom-extract/)

### 2.2 Cordyceps militaris Extract Powder

**Scientific name:** *Cordyceps militaris*

For Cordyceps militaris extract powder, buyers should distinguish the species and source material from products sold under other Cordyceps-related names.

For a requested 8:1 extract powder, clarify:

- The confirmed scientific identity;
- The source material used;
- The extraction method and solvent system;
- The basis of the stated extraction ratio;
- Whether the specification includes any target marker or assay;
- The available identity and contaminant testing documentation;
- Whether the required bulk quantity can be supplied within the project timeline.

If a marker such as cordycepin is important to your formulation or purchasing specification, request the target value, analytical method, and supporting report where available. Do not infer a marker concentration from an 8:1 ratio.

### 2.3 Reishi Extract Powder

**Scientific name:** *Ganoderma lucidum*

Reishi ingredients can differ in source material, processing, extraction method, and intended specification.

For an 8:1 Reishi extract powder, verify:

- Scientific identity and source material;
- Whether the material is derived from fruiting body, mycelium, spores, or another specified source;
- Extraction method and solvent;
- Ratio calculation basis;
- Carrier or additive identity and percentage, where applicable;
- Any specified marker compounds and the analytical methods used;
- The lot-specific COA and other available documentation.

If the project requires a specific marker profile, state that requirement before comparing quotations. A ratio specification alone is not sufficient to establish equivalence between two materials.

Reishi materials are also supplied in spore-based forms, where the specification is usually discussed in terms of polysaccharides and triterpenes rather than an extraction ratio alone. Where a spore-based material is being considered, review the [Reishi spore powder (polysaccharides and triterpenes)](https://www.nourishingr.net/products/reishi-spore-powder-shell-broken/) specification sheet and confirm how the marker profile is defined and tested.

### 2.4 Turkey Tail Extract Powder

**Scientific name:** *Trametes versicolor* (also referred to as *Coriolus versicolor* in some contexts)

Turkey Tail sourcing requires careful attention to species identity, source material, and the exact product specification.

For a requested 8:1 extract powder, ask the supplier to confirm:

- The scientific identity used in its product documentation;
- The source material and processing method;
- The extraction solvent and ratio basis;
- Any required beta-glucan or other marker specification;
- The test method used for each requested marker;
- The lot number and corresponding COA;
- The available microbiological and contaminant testing.

If beta-glucan content is important, specify the required test method and reporting basis. Results from different analytical methods may not be directly comparable, so the method should be considered alongside the reported value.

### 2.5 Shiitake Extract Powder

**Scientific name:** *Lentinula edodes*

A requested 1:1 Shiitake extract powder needs particular clarification because the ratio notation does not, by itself, explain the complete processing history or final composition.

Confirm:

- Whether the product is an extract powder or another form;
- The meaning and calculation basis of the 1:1 designation;
- The source material and extraction method;
- Whether carriers or other additives are included;
- Any required identity, assay, or marker specifications;
- The available COA and supporting test documentation.

Do not assume that a 1:1 product is compositionally equivalent to raw mushroom powder or to another supplier’s 1:1 product. Request a specification sheet and review the definitions used by the supplier before making a purchasing decision.

### 2.6 King Trumpet Mushroom Powder

**Scientific name:** *Pleurotus eryngii*

King Trumpet should be evaluated separately from the extract powders listed above when the requested form is ordinary mushroom powder.

For this ingredient, confirm:

- Scientific identity and source material;
- Whether the product is mushroom powder rather than extract powder;
- Processing method and any relevant particle-size specification;
- Moisture or other quality parameters required by the buyer;
- Whether carriers or additives are present;
- The required microbiological and contaminant specifications;
- Bulk quantity, packaging, and supply schedule.

If the formulation team later changes the requirement from powder to extract powder, reassess the specification and quotation rather than assuming the existing product remains suitable.

## 3. How to Evaluate Mushroom Extraction Ratios

Extraction ratios are among the most important—and most frequently misunderstood—details in mushroom ingredient sourcing.

A ratio such as 8:1 is often used to describe a relationship between the starting material and the resulting extract. However, the notation alone does not fully explain how the ratio was calculated.

### 3.1 Ask what the ratio represents

Request written clarification of:

- The starting material used in the calculation;
- Whether the starting material is fresh or dried;
- Whether the stated ratio represents an input-to-extract relationship or another supplier-defined convention;
- The processing and extraction steps relevant to the designation;
- Whether the ratio is a manufacturing calculation or a separately verified analytical parameter.

Do not compare ratio numbers without first confirming that both suppliers use a sufficiently comparable definition.

### 3.2 Do not use the ratio as a substitute for assay data

An extraction ratio does not automatically establish the concentration of beta-glucans, cordycepin, triterpenes, or any other constituent.

Where a marker specification is important, request the actual target specification and supporting analytical documentation. The ratio and the marker assay answer different questions and should be reviewed separately.

### 3.3 Compare the complete specification

A meaningful comparison should include:

| Specification element | What to confirm |
| --------------------- | --------------- |
| Identity | Scientific name and identity verification approach |
| Source material | Fruiting body, mycelium, or other defined material |
| Product form | Mushroom powder or extract powder |
| Extraction ratio | Definition and calculation basis |
| Extraction method | Solvent and relevant process details |
| Carrier | Identity and percentage, if present |
| Markers | Target specification and analytical method, if required |
| Contaminants | Applicable limits and supporting test results |
| Lot documentation | Lot number and corresponding COA |

Two products with the same species name and nominal ratio should not automatically be considered interchangeable.

## 4. How to Review a Mushroom Extract COA

A Certificate of Analysis is a key document in bulk ingredient evaluation. It should be reviewed alongside the product specification and the requirements of the intended application.

The content and format of a COA vary by supplier, product, batch, and testing arrangement. Request the documentation applicable to the specific material being quoted.

### 4.1 Confirm product and lot identity

Check whether the COA identifies:

- The product name or code;
- The scientific identity where applicable;
- The batch or lot number;
- The test date or report date;
- The tested parameters;
- The reported results and units;
- The relevant specification limits or acceptance criteria;
- The testing organization, where identified.

Confirm that the lot number on the COA corresponds to the material being offered. A generic specification sheet and a lot-specific COA serve different purposes.

### 4.2 Review identity and assay results

Identity testing helps assess whether the material corresponds to the stated ingredient. Assay testing addresses specified constituents or quality parameters.

Ask which method was used and whether the reported result is relevant to the purchasing specification. If a marker is required, check the target value, actual result, unit, and method rather than relying only on a product description.

### 4.3 Review microbiological and contaminant parameters

Depending on the product, intended use, destination market, and purchasing specification, buyers may request documentation for:

- Microbiological parameters;
- Heavy metals;
- Pesticide residues;
- Residual solvents;
- Mycotoxins;
- Other contaminants or adulteration risks relevant to the material.

Not every test is necessarily included on every COA. Define the required parameters and acceptance criteria before placing the order, then confirm which results are available for the offered lot and which may require additional testing.

### 4.4 Distinguish supplier documents from independent testing

A supplier-provided COA, an existing third-party laboratory report, and a newly commissioned independent test are not the same thing.

Ask who performed each test, which lot was tested, and whether the report corresponds to the material under consideration. Where independent verification is needed, confirm the laboratory, scope, sample handling, cost, and timing before proceeding.

### 4.5 Treat documentation as part of supplier qualification

Do not evaluate a supplier solely by the number of documents it can provide. The documents should be relevant, internally consistent, traceable to the product, and suitable for the buyer’s quality requirements.

If information is missing or unclear, request clarification before approving the material.

## 5. Source Material, Extraction Method and Carriers

Species identity is only one part of ingredient evaluation. Source material, processing, extraction method, and formulation-relevant additives can also affect whether a material matches the buyer’s requirements.

### 5.1 Confirm the source material

For mushroom ingredients, clarify whether the material is derived from fruiting body, mycelium, spores, or another specified source. Do not assume that all products sold under the same common name use the same source material.

The required source should be recorded in the purchasing specification when it is material to the project.

### 5.2 Review the extraction method

Ask the supplier to describe the extraction method and solvent system at the level needed for specification comparison and quality review.

Where processing details are commercially confidential, determine what relevant information can be documented without requiring disclosure of proprietary manufacturing information.

The goal is to understand the material being purchased—not to assume that a particular method is used because a product is described as an extract.

### 5.3 Identify carriers and additives

Some powdered ingredients may contain carriers or other processing-related components. Request the identity and percentage where applicable, and confirm that the information is sufficient for the buyer’s formulation, labeling, and quality review.

Do not assume that a product is carrier-free unless this has been confirmed in the relevant documentation.

### 5.4 Match the specification to the application

A specification suitable for one capsule program may not meet another buyer’s requirements. Define the intended application, relevant quality parameters, and required documentation before final supplier selection.

For US dietary supplement projects, buyers should also assess applicable manufacturing, labeling, and regulatory requirements with their qualified compliance or regulatory personnel. General sourcing guidance does not replace a product-specific regulatory assessment.

Reference: [FDA — Small Entity Compliance Guide: Current Good Manufacturing Practice in Manufacturing, Packaging, Labeling, or Holding Operations for Dietary Supplements](https://www.fda.gov/regulatory-information/search-fda-guidance-documents/small-entity-compliance-guide-current-good-manufacturing-practice-manufacturing-packaging-labeling)

## 6. How to Evaluate Suppliers for Bulk Mushroom Orders

For bulk purchases, supplier evaluation should cover both the material and the supplier’s ability to meet the project requirements.

### 6.1 Specification and document review

Start by checking whether the proposed material matches the requested species, product form, ratio definition, source material, extraction method, marker specifications, and documentation requirements.

Where details are unclear, request a revised specification or written clarification before comparing the offer with other suppliers.

### 6.2 Traceability and lot verification

Confirm what lot-level information is available and how the offered material can be linked to its supporting documentation.

For a project requiring a lot-specific COA, do not treat an unrelated or generic document as confirmation of the offered lot.

### 6.3 Capacity, stock and lead time

Ask whether the required quantity is currently available, can be allocated, or must be produced.

For a bulk order, verify:

- Quantity available under the requested specification;
- Whether the inventory is confirmed or only estimated;
- Whether additional production is needed;
- Expected preparation and dispatch timing;
- Any testing or documentation steps that could affect release;
- Whether the supplier can support the requested delivery schedule.

Stock, production capacity, and dispatch dates should be confirmed for the specific order. Availability for a small sample does not prove availability for a commercial quantity.

### 6.4 Sample evaluation

A sample can help the buyer assess material characteristics and determine whether the proposed specification warrants further evaluation.

Before requesting one, confirm the sample’s identity, specification, availability, cost, shipping arrangement, and expected dispatch timing.

Where consistency between sample and bulk material is important, establish how the sample relates to the proposed commercial lot and how the final material will be verified.

### 6.5 Quality review and additional testing

If the existing documentation does not answer a key question, request the missing information or discuss whether additional testing is appropriate.

Depending on the project, this may involve reviewing existing reports, checking batch documentation, or coordinating third-party testing. Scope, laboratory availability, cost, and timing should be confirmed before testing is commissioned.

### 6.6 Compare suppliers on a like-for-like basis

Supplier comparisons are most useful when the offers cover the same specification and commercial assumptions.

A comparison matrix can include:

| Evaluation area | Questions to ask |
| --------------- | ---------------- |
| Product identity | Is the scientific identity confirmed? |
| Specification | Are source material, form, ratio and methods clearly defined? |
| Markers | Are required marker targets and test methods stated? |
| Documentation | Are the requested specification sheet and COA available? |
| Testing | Which tests exist, and which require additional work? |
| Traceability | Can the offered lot be linked to the documentation? |
| Quantity | Is the required amount confirmed, estimated, or to be produced? |
| MOQ | What minimum applies to this product and specification? |
| Lead time | What is the confirmed preparation and dispatch schedule? |
| Logistics | What delivery terms and charges apply to the destination? |
| Samples | Can a representative sample be supplied, and on what terms? |

The number of suppliers compared will depend on the project. The objective is not simply to obtain the lowest quoted price, but to compare technically relevant offers and understand the associated supply and quality requirements.

## 7. Comparing Total Sourcing Costs for US Buyers

For US buyers, the quoted ingredient price is only one part of the purchasing decision.

A useful comparison should consider the commercial assumptions behind each offer, including:

- Price basis and quoted quantity;
- Product specification and any differences between offers;
- Minimum order quantity;
- Packaging requirements;
- Sample and testing costs, where applicable;
- Freight and delivery arrangements;
- Duties, brokerage, or other charges where applicable;
- Expected lead time and any project-specific constraints.

Ask each supplier to identify what is included and excluded from the quotation. If the delivery price is based on an estimate, request the assumptions used.

When offers differ in extraction-ratio definitions, carrier content, marker specifications, test coverage, or documentation, the lowest price may not represent the most comparable option.

Nourish Ingredients can coordinate quotation requests and compare available offers across specification, MOQ, lead time, freight, and other project requirements. Final terms depend on the selected product, supplier, quantity, and destination.

## 8. Practical RFQ Checklist for Mushroom Ingredients

A clear Request for Quotation (RFQ) reduces avoidable clarification and helps suppliers assess the project more efficiently.

Include the following information where available.

### Product requirements

- Common name and scientific name;
- Powder or extract powder;
- Target extraction ratio and its required definition;
- Source material;
- Extraction method or solvent requirements;
- Target marker specifications and analytical methods, if required;
- Carrier or additive requirements;
- Required quality and contaminant testing;
- Specification sheet and COA requirements.

### Commercial requirements

- Initial order quantity;
- Estimated annual demand, if known;
- Target delivery date;
- Destination city and ZIP code;
- Required delivery terms;
- Target MOQ, if applicable;
- Sample requirements;
- Any special packaging or documentation requirements.

### Quality and supply requirements

- Whether stock is required or production lead time is acceptable;
- Whether lot-specific documentation is required before order approval;
- Whether third-party testing is needed;
- Whether the sample must be linked to a proposed commercial lot;
- Whether additional supplier or traceability documentation is required.

Not every field must be finalized before making an inquiry. If a specification is still under development, identify it as provisional so that the supplier does not treat it as an approved final requirement.

## 9. Copy-and-Use RFQ Template

Buyers can adapt the following template when contacting an ingredient sourcing partner.

**Subject: RFQ — Bulk Mushroom Ingredients for US Capsule Manufacturing**

Hello,

We are evaluating bulk mushroom ingredients for a dietary supplement and capsule manufacturing program in the United States.

Please review the requirements below and confirm which items you can support.

**Requested ingredients**

- Lion’s Mane (*Hericium erinaceus*) — 8:1 water extract powder — target quantity: [insert quantity]
- Cordyceps militaris — 8:1 extract powder — target quantity: [insert quantity]
- Reishi (*Ganoderma lucidum*) — 8:1 extract powder — target quantity: [insert quantity]
- Turkey Tail (*Trametes versicolor*) — 8:1 extract powder — target quantity: [insert quantity]
- Shiitake (*Lentinula edodes*) — 1:1 extract powder — target quantity: [insert quantity]
- King Trumpet (*Pleurotus eryngii*) — mushroom powder — target quantity: [insert quantity]

Please confirm the following for each item:

- Current product specification and scientific identity;
- Source material and extraction method;
- Extraction-ratio definition and calculation basis, where applicable;
- Carrier or additive identity and percentage, where applicable;
- Available marker specifications and test methods;
- Current specification sheet and lot-specific COA availability;
- Existing identity, microbiological, heavy-metal, pesticide, residual-solvent, mycotoxin, or other relevant test reports;
- Whether the requested quantity is in stock, can be allocated, or requires production;
- MOQ, quotation validity, and estimated preparation and dispatch time;
- Sample availability, cost, and shipping arrangements;
- Quotation terms and estimated delivery charges to [city, state, ZIP code, USA];
- Any additional testing, documentation, or commercial requirements.

Please identify any specification that cannot be confirmed at this stage and distinguish estimates from confirmed information.

Thank you.

## 10. How Nourish Ingredients Supports Mushroom Ingredient Sourcing

Nourish Ingredients works with B2B buyers to coordinate sourcing and supply-chain requirements for botanical and mushroom ingredients.

Rather than assuming that every supplier offers identical materials or documentation, the sourcing process focuses on clarifying the buyer’s requirements and evaluating available supply options against them.

Depending on the project, support may include:

- **Specification clarification:** Organizing the requested species, material form, extraction ratio, source material, marker requirements, and documentation needs.
- **Supplier matching:** Identifying potential supply options against the requested specification and project requirements.
- **Supplier comparison:** Comparing available quotations, specifications, MOQ, lead time, freight, and documentation.
- **Document coordination:** Requesting specification sheets, COAs, and other relevant supplier documents.
- **Sample coordination:** Checking sample availability and arranging requests where feasible.
- **Quality verification coordination:** Reviewing available lot documentation and discussing additional third-party testing when needed.
- **Supply and logistics coordination:** Checking bulk availability, production requirements, dispatch timing, and destination-specific shipping terms.

The exact scope depends on the ingredient, supplier, requested quantity, testing needs, and destination. Product availability, document coverage, and delivery commitments must be confirmed for each inquiry.

For buyers sourcing multiple mushroom ingredients, a consolidated RFQ can help organize the requirements in one place while preserving the individual specification and verification needs of each material.

## 11. Frequently Asked Questions

### What should I check before buying bulk mushroom extract powder?

Start with scientific identity, source material, product form, extraction method, ratio definition, marker requirements, carrier information, COA availability, relevant contaminant testing, and lot traceability. Confirm MOQ, quantity availability, lead time, and delivery terms separately.

### Does an 8:1 mushroom extract mean it contains eight times more active compounds?

Not necessarily. The ratio notation alone does not establish the concentration of a specific constituent. Ask the supplier to explain how the ratio is calculated and request separate assay documentation for any required marker.

### Is mushroom powder the same as mushroom extract powder?

No. The terms describe different product forms and should not be treated as interchangeable. Confirm the processing method, specification, and source material before selecting a product for a formulation.

### Can I request a COA before placing a bulk order?

You can request the available documentation during supplier evaluation. Confirm whether the document is a general specification, an existing test report, or a COA linked to a specific lot. Lot-specific documentation may depend on which material is ultimately offered.

### Can beta-glucan or other marker testing be arranged?

Marker specifications and testing can be requested for evaluation. Confirm the target specification, analytical method, sample requirements, laboratory availability, cost, and timing for the particular project. Do not assume that every product includes the same marker test.

### How can I confirm that a sample matches the bulk material?

Ask the supplier to clarify the sample’s source and specification, and how it relates to the proposed commercial material. Where required, agree on lot identification, documentation, and verification steps before bulk approval.

### Can mushroom extracts be supplied in bulk to the United States?

Potential supply and delivery arrangements can be evaluated for US-bound projects. Availability, quantity, production schedule, documentation, and shipping terms must be confirmed for each ingredient and order.

### Does Nourish Ingredients manufacture every mushroom ingredient directly?

Nourish supports B2B ingredient sourcing and supply-chain coordination. The actual manufacturing source depends on the product and qualified supply option. Buyers can request clarification of the supplier, available documentation, and verification scope for their project.

### How do I request a quotation for multiple mushroom ingredients?

Prepare a list of species, product forms, target ratios, quantities, destination, documentation requirements, stock preferences, and sample needs. Submit the information through the contact or inquiry channel so the requirements can be reviewed together.

## 12. Request a Bulk Mushroom Ingredient Quote or Sample

Planning a capsule or dietary supplement project with multiple mushroom ingredients?

Send Nourish Ingredients your target species, product form, extraction ratio, quantity, destination, and documentation requirements. If your specification is still being finalized, identify the open items so that they can be clarified during sourcing.

We can review the inquiry and coordinate the next steps based on the requirements, available supply options, and project timeline.

[Request a Bulk Quote](https://www.nourishingr.net/contact-us/) — Discuss specifications, quantities, supply options, and delivery requirements.

[Request a Sample](https://www.nourishingr.net/contact-us/) — Ask about sample availability, documentation, costs, and shipping arrangements.

All product specifications, stock status, MOQ, lead time, testing scope, and commercial terms are subject to project-specific confirmation.