Low fiber pennycress meal, seeds, and methods of making

Gary Hartnell, St. Peters, MO (US); John C. Sedbrook, Bloomington, IL (US); Maliheh Esfahanian, San Diego, CA (US); Michael David Marks, Roseville, MN (US); Ratan Chopra, St. Louis, MO (US); Tim Ulmasov, San Diego, CA (US)

USPTO: us-12667119 · published 2026-06-30 · patents · A23K 10/30· A23K 20/158

Low fiber pennycress meal, seeds, and methods of making

Tim Ulmasov, San Diego, CA (US) , Gary Hartnell, St. Peters, MO (US) , John C. Sedbrook, Bloomington, IL (US) , Michael David Marks, Roseville, MN (US) , Ratan Chopra, St. Louis, MO (US) , Maliheh Esfahanian, San Diego, CA (US) This is my paper

Pith reviewed 2026-07-02 15:01 UTC · model grok-4.3

classification patents A23K 10/30A23K 20/158

keywords pennycressseed mealacid detergent fiberloss-of-function mutationdefatted mealpolynucleotideallelic variantgenetic modification

0 comments

The pith

Pennycress seed meal reaches 7% to 25% acid detergent fiber when defatted and carrying a detectable loss-of-function mutation in the gene of SEQ ID NO: 11 or 173.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The patent establishes a composition for defatted pennycress seed meal that maintains acid detergent fiber between 7 and 25 percent by dry weight. This outcome occurs when the meal contains a detectable polynucleotide sequence with at least one loss-of-function mutation in the endogenous gene matching SEQ ID NO: 11 or SEQ ID NO: 173, or in an allelic variant with at least 95 percent sequence identity. A reader would care because the mutation supplies a direct genetic route to the stated fiber reduction, allowing the meal to meet the low-fiber specification without separate chemical or mechanical treatments.

Core claim

The paper claims that pennycress seed meal comprising an acid detergent fiber content of 7% to 25% by dry weight, when defatted, contains a detectable amount of a polynucleotide with at least one loss-of-function mutation in the endogenous wild-type pennycress gene of SEQ ID NO: 11 or SEQ ID NO: 173 or in an allelic variant having at least 95% sequence identity to those sequences.

What carries the argument

The loss-of-function mutation in the endogenous pennycress gene (SEQ ID NO: 11 or 173) that is required to produce the claimed low acid detergent fiber level in the defatted seed meal.

If this is right

Seeds carrying the mutation can be planted to produce the low-fiber meal after defatting.
Methods of making include growing the mutated plants, harvesting the seeds, and defatting the resulting meal.
The mutation enables breeding programs that consistently yield meal meeting the 7-25 percent ADF range.
The composition extends to any allelic variant meeting the 95 percent identity threshold.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

If the mutation affects fiber biosynthesis pathways, similar edits in related Brassicaceae species might produce comparable low-fiber meals.
Commercial feed formulations could incorporate this meal to reduce overall fiber without added processing steps.
The patent's range of 7-25 percent ADF sets a target that could be tested against standard pennycress meal baselines for measurable improvement.

Load-bearing premise

The presence of the loss-of-function mutation in the referenced gene produces or is reliably associated with the claimed reduction in acid detergent fiber content in the defatted seed meal.

What would settle it

A defatted pennycress seed meal sample that carries the described mutation yet shows acid detergent fiber above 25 percent, or a defatted meal sample lacking the mutation yet showing fiber between 7 and 25 percent.

read the original abstract

1 . Pennycress seed meal comprising an acid detergent fiber (ADF) content of 7% to 25% by dry weight, wherein the seed meal is defatted, and wherein said meal comprises a detectable amount of a polynucleotide comprising: (i) at least one loss-of-function mutation in an endogenous wild-type pennycress gene comprising the polynucleotide sequence of SEQ ID NO: 11 or SEQ ID NO: 173; or (ii) at least one loss-of-function mutation in an allelic variant of the endogenous wild-type pennycress gene having at least 95% sequence identity to SEQ ID NO: 11 or SEQ ID NO: 173.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Desk Editor's Note private letter to a colleague

Patent asserts low-fiber pennycress meal tied to specific gene mutation but supplies zero data or methods to support the link.

read the letter

This patent application claims defatted pennycress seed meal with acid detergent fiber between 7 and 25 percent that also carries a detectable loss-of-function mutation in the gene given by SEQ ID NO: 11 or 173 (or a 95 percent identical allelic variant). That is the entire substance.

The specific ADF range paired with those exact sequences is the only element that could count as new in a patent sense. Using loss-of-function mutations to change seed composition is an established technique, so the novelty sits entirely in the precise claim language rather than any new biological insight.

The document does what a patent filing is supposed to do: it states a composition-of-matter claim in clear legal terms. Beyond that there is nothing.

The central weakness is exactly what the stress-test note flags. The claim requires that the mutation produces or reliably correlates with the stated fiber reduction, yet the abstract (and apparently the full filing) contains no fiber measurements, no plant genotypes, no preparation methods, and no comparison to wild-type material. The phenotype-genotype connection is simply asserted. Without any supporting results, it is impossible to judge whether the claim is enabled or whether the 7-25 percent range is even realistic.

This is for patent counsel and companies working on pennycress as an oilseed crop for animal feed. A reader looking for new data on fiber modification or validated breeding targets will find none. It does not rise to the level of a scientific result that would justify referee time.

Referee Report

1 major / 0 minor

Summary. The manuscript claims a defatted pennycress seed meal with an acid detergent fiber (ADF) content of 7% to 25% by dry weight that contains a detectable loss-of-function mutation in an endogenous wild-type pennycress gene (SEQ ID NO: 11 or SEQ ID NO: 173, or an allelic variant with at least 95% sequence identity).

Significance. If the claimed genotype-phenotype association holds, the result would enable targeted reduction of fiber in pennycress meal for improved feed applications, representing a potentially useful composition-of-matter advance in oilseed crop improvement.

major comments (1)

[Abstract] Abstract (claim 1): the composition is asserted to exhibit ADF of 7-25% precisely when it contains the specified loss-of-function mutation, yet the document supplies no plant genotypes, fiber assay data, measurements, or experimental results establishing that the mutation produces or correlates with this ADF range. This association is load-bearing for the claim.

Simulated Author's Rebuttal

1 responses · 1 unresolved

We thank the referee for their review of the patent application. We respond to the major comment below, with an honest assessment of what the provided manuscript contains.

read point-by-point responses

Referee: [Abstract] Abstract (claim 1): the composition is asserted to exhibit ADF of 7-25% precisely when it contains the specified loss-of-function mutation, yet the document supplies no plant genotypes, fiber assay data, measurements, or experimental results establishing that the mutation produces or correlates with this ADF range. This association is load-bearing for the claim.

Authors: The referee correctly observes that the manuscript consists solely of the claim language and supplies no plant genotypes, fiber assay data, measurements, or experimental results. No supporting evidence for the asserted association between the loss-of-function mutation and the 7-25% ADF range is present in the document. revision: no

standing simulated objections not resolved

The manuscript provides no experimental data, genotypes, or assay results to establish or support the claimed association between the specified loss-of-function mutation and the ADF content range of 7-25%.

Circularity Check

0 steps flagged

No derivation chain or mathematical structure present in patent claim

full rationale

This document is a legal patent claiming a composition-of-matter (pennycress seed meal with ADF 7-25% and a detectable loss-of-function mutation in SEQ ID NO:11 or 173 or 95% identical variant). It contains no equations, models, predictions, fitted parameters, or derivation steps of any kind. The patterns for circularity (self-definitional claims, fitted inputs called predictions, self-citation load-bearing, etc.) do not apply because there is no derivation chain to inspect. The claim is a standalone legal assertion whose validity depends on enablement and non-obviousness under patent law, not on any internal reduction to its own inputs. This matches the expected honest non-finding for documents without scientific derivations.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

The claim rests on standard molecular biology concepts of loss-of-function mutations and sequence identity thresholds but introduces no free parameters, additional axioms, or new invented entities.

pith-pipeline@v0.9.1-grok · 5712 in / 1145 out tokens · 38935 ms · 2026-07-02T15:01:57.997235+00:00 · methodology

discussion (0)

Lean theorems connected to this paper

Citations machine-checked in the Pith Canon. Every link opens the source theorem in the public Lean library.

IndisputableMonolith.Foundation.RealityFromDistinction reality_from_one_distinction unclear

?

unclear
Relation between the paper passage and the cited Recognition theorem.

Pennycress seed meal comprising an acid detergent fiber (ADF) content of 7% to 25% by dry weight, wherein the seed meal is defatted, and wherein said meal comprises a detectable amount of a polynucleotide comprising at least one loss-of-function mutation in an endogenous wild-type pennycress gene comprising the polynucleotide sequence of SEQ ID NO: 11 or SEQ ID NO: 173
IndisputableMonolith.Cost.FunctionalEquation washburn_uniqueness_aczel unclear

?

unclear
Relation between the paper passage and the cited Recognition theorem.

or (ii) at least one loss-of-function mutation in an allelic variant of the endogenous wild-type pennycress gene having at least 95% sequence identity to SEQ ID NO: 11 or SEQ ID NO: 173

What do these tags mean?

matches: The paper's claim is directly supported by a theorem in the formal canon.
supports: The theorem supports part of the paper's argument, but the paper may add assumptions or extra steps.
extends: The paper goes beyond the formal theorem; the theorem is a base layer rather than the whole result.
uses: The paper appears to rely on the theorem as machinery.
contradicts: The paper's claim conflicts with a theorem or certificate in the canon.
unclear: Pith found a possible connection, but the passage is too broad, indirect, or ambiguous to say the theorem truly supports the claim.