IP Library › Granted Patent US 12,480,166
Granted Patent B2
US 12,480,166 · App. 17/258,434 · Granted Nov 25, 2025

Multiplexed fuel analysis

Inventors: Richard F. Selden (Lincoln, MA); Rosemary Turingan Witkowski (Stoneham, MA)
Assignee: ANDE Corporation
C12Q1/6888C12Q1/6848C12Q2600/16
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Quick Facts
Patent No.
US 12,480,166
App. No.
17/258,434
Granted
Nov 25, 2025
Kind
B2
Abstract

Compositions, testing chambers and methods for testing a fuel sample for microbial contamination (including fuels treated with a biocide) are provided, which comprise: a quantity of hydrocarbon fuel; a microbial contamination wherein the microbial contamination further comprises nucleic acid in the form of both DNA, RNA or a combination thereof, and an analyzing solution; wherein the analyzing solution comprises at least six (6) primer pairs for amplification of at least one target locus, wherein at least one primer of each pair of primers is labeled with a fluorescent dye and wherein at least one of the primer pair binds to the nucleic acid of the microbial contamination.

Claims (84)

1 . A composition comprising at least six (6) primer pairs in which at least one primer of each pair is labeled with a fluorescent dye;

the first primer of said first primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 1 and the second primer of said first primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 2 or 3;

the first primer of said second primer pair having at least 90% homology to the sequence set forth in of SEQ ID NO: 4 and the second primer of said second primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 5;

the first primer pair of said third primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 6; and said second primer of said fifth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 7; and

the first primer of said fourth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 7, and the second primer of said sixth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 8;

the first primer pair of said fifth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 9, 10 or 11; and said second primer of said fifth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 12; and

the first primer of said sixth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 13 or SEQ ID NO: 14, and the second primer of said sixth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 15 or SEQ ID NO:16.

2 . The composition of claim 1 in a solution.

3 . The composition of claim 1 in a lyophilized pellet.

4 . The composition of claim 3 wherein said lyophilized pellet is in a biochip.

5 . The composition of claim 1 wherein at least 3 different dyes are used to label the primers.

6 . The composition of claim 1 , wherein:

the first primer of said first primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 1 and the second primer of said first primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 2 or 3;

the first primer of said second primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 4 and the second primer of said second primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 5;

the first primer pair of said third primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 6; and said second primer of said fifth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 7; and

the first primer of said fourth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 7, and the second primer of said sixth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 8;

the first primer pair of said fifth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 9, 10 or 11; and said second primer of said fifth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 12; and

the first primer of said sixth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 13 or SEQ ID NO: 14, and the second primer of said sixth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 15 or SEQ ID NO:16.

7 . The composition of claim 1 , wherein:

the first primer of said first primer pair having the sequence set forth in SEQ ID NO: 1 and the second primer of said first primer pair having the sequence set forth in SEQ ID NO: 2 or 3;

the first primer of said second primer pair having the sequence set forth in SEQ ID NO: 4 and the second primer of said second primer pair having the sequence set forth in SEQ ID NO: 5;

the first primer pair of said third primer pair having the sequence set forth in SEQ ID NO: 6; and said second primer of said fifth primer pair having the sequence set forth in SEQ ID NO: 7; and

the first primer of said fourth primer pair having the sequence set forth in SEQ ID NO: 7, and the second primer of said sixth primer pair having the sequence set forth in SEQ ID NO: 8;

the first primer pair of said fifth primer pair having the sequence set forth in SEQ ID NO: 9, 10 or 11; and said second primer of said fifth primer pair having the sequence set forth in SEQ ID NO: 12; and

the first primer of said sixth primer pair having the sequence set forth in SEQ ID NO: 13 or SEQ ID NO: 14, and the second primer of said sixth primer pair having the sequence set forth in SEQ ID NO: 15 or SEQ ID NO:16.

8 . The composition of claim 1 , wherein at least one primer has:

(i) at least one mismatch to nontarget sequences within 3 nucleotides from the 3′ end creating a primer with one mismatch to nontarget sequences; or

(ii) at least 2 mismatches to nontarget sequences within 3 nucleotides from the 3′ end and wherein said at least 2 mismatches are adjacent creating a primer with one mismatch to target sequences and two mismatches to nontarget sequences; or

(iii) at least one nucleotide truncation from the 5′ end to result in at least one primer with a Tm of 1-2° C. below the optimized annealing temperature; or

(iv) at least one nucleotide elongation at the 5′ end; or

(v) an elimination of at least one GC nucleotide pair within the first two positions of the 3′ end.

9 . The composition of claim 1 further comprising at least one genus-specific primer pair in which at least one primer of each primer pair is labeled with a fluorescent dye, wherein the genus-specific primer pair is specific for the genus selected from the group consisting of: Pseudomonas, Bacillus, Aspergillus, Penicillium, Flavobacteriaceae, Fusarium, Burkholderia, Marinobacter, Halomonas , and Candida.

10 . The composition of claim 1 further comprising at least one species-specific primer pair in which at least one primer of each primer pair is labeled with a fluorescent dye, wherein the species specific primer pair is specific for the species selected from the group consisting of: Penicillium chrysogenum, Candida glabrata, Hormoconis resinae and Desulfovibrio vulgaris.

11 . A composition comprising at least twelve (12) primer pairs in which at least one primer of each primer pair is labeled with a fluorescent dye;

(i) the first primer of said first primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 1 and the second primer of said first primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 2;

(ii) the first primer of said second primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 1 and the second primer of said second primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 3;

(iii) the first primer of said third primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 4 and the second primer of said third primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 5;

(iv) the first primer pair of said fourth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 6; and said second primer of said fourth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 7;

(v) the first primer pair of said fifth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 8; and said second primer of said fifth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 7;

(vi) the first primer of said sixth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 9, and the second primer of said sixth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 12;

(vii) the first primer of said seventh primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 10, and the second primer of said seventh primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 12;

(viii) the first primer of said eighth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 11, and the second primer of said eighth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 12;

(ix) the first primer pair of said ninth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 13 and said second primer of said ninth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 15; and

(x) the first primer pair of said tenth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 13 and said second primer of said tenth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 16; and

(xi) the first primer pair of said eleventh primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 14 and said second primer of said eleventh primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 15; and

(xii) the first primer pair of said twelfth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 14 and said second primer of said twelfth primer pair having at least 90% homology to the sequence set forth in SEQ ID NO: 16.

12 . The composition of claim 11 in a solution.

13 . The composition of claim 11 in a lyophilized pellet.

14 . The composition of claim 13 , wherein said lyophilized pellet is in a biochip.

15 . The composition of claim 11 , wherein at least 3 different dyes are used to label the primers.

16 . The composition of claim 11 , wherein:

(i) the first primer of said first primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 1 and the second primer of said first primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 2;

(ii) the first primer of said second primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 1 and the second primer of said second primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 3;

(iii) the first primer of said third primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 4 and the second primer of said third primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 5;

(iv) the first primer pair of said fourth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 6; and said second primer of said fourth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 7;

(v) the first primer pair of said fifth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 8; and said second primer of said fifth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 7;

(vi) the first primer of said sixth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 9, and the second primer of said sixth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 12;

(vii) the first primer of said seventh primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 10, and the second primer of said seventh primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 12;

(viii) the first primer of said eighth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 11, and the second primer of said eighth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 12;

(ix) the first primer pair of said ninth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 13 and said second primer of said ninth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 15; and

(x) the first primer pair of said tenth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 13 and said second primer of said tenth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 16; and

(xi) the first primer pair of said eleventh primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 14 and said second primer of said eleventh primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 15; and

(xii) the first primer pair of said twelfth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 14 and said second primer of said twelfth primer pair having at least 95% homology to the sequence set forth in SEQ ID NO: 16.

17 . The composition of claim 11 , wherein:

(i) the first primer of said first primer pair having the sequence set forth in SEQ ID NO: 1 and the second primer of said first primer pair having the sequence set forth in SEQ ID NO: 2;

(ii) the first primer of said second primer pair having the sequence set forth in SEQ ID NO: 1 and the second primer of said second primer pair having the sequence set forth in SEQ ID NO: 3;

(iii) the first primer of said third primer pair having the sequence set forth in SEQ ID NO: 4 and the second primer of said third primer pair having the sequence set forth in SEQ ID NO: 5;

(iv) the first primer pair of said fourth primer pair having the sequence set forth in SEQ ID NO: 6; and said second primer of said fourth primer pair having the sequence set forth in SEQ ID NO: 7;

(v) the first primer pair of said fifth primer pair having the sequence set forth in SEQ ID NO: 8; and said second primer of said fifth primer pair having the sequence set forth in SEQ ID NO: 7;

(vi) the first primer of said sixth primer pair having the sequence set forth in SEQ ID NO: 9, and the second primer of said sixth primer pair having the sequence set forth in SEQ ID NO: 12;

(vii) the first primer of said seventh primer pair having the sequence set forth in SEQ ID NO: 10, and the second primer of said seventh primer pair having the sequence set forth in SEQ ID NO: 12;

(viii) the first primer of said eighth primer pair having the sequence set forth in SEQ ID NO: 11, and the second primer of said eighth primer pair having the sequence set forth in SEQ ID NO: 12;

(ix) the first primer pair of said ninth primer pair having the sequence set forth in SEQ ID NO: 13 and said second primer of said ninth primer pair having the sequence set forth in SEQ ID NO: 15; and

(x) the first primer pair of said tenth primer pair having the sequence set forth in SEQ ID NO: 13 and said second primer of said tenth primer pair having the sequence set forth in SEQ ID NO: 16; and

(xi) the first primer pair of said eleventh primer pair having the sequence set forth in SEQ ID NO: 14 and said second primer of said eleventh primer pair having the sequence set forth in SEQ ID NO: 15; and

(xii) the first primer pair of said twelfth primer pair having the sequence set forth in SEQ ID NO: 14 and said second primer of said twelfth primer pair having the sequence set forth in SEQ ID NO: 16.

18 . The composition of claim 11 , wherein at least one primer has:

(i) a first mismatch to nontarget sequences within 3 nucleotides from the 3′ end creating a primer with one mismatch to nontarget sequences; or

(ii) at least 2 mismatches to nontarget sequences within 3 nucleotides from the 3′ end and wherein said at least 2 mismatches are adjacent creating a primer with one mismatch to target sequences and two mismatches to nontarget sequences; or

(iii) at least one nucleotide truncation from the 5′ end to result in at least one primer with a Tm of 1-2° C. below the optimized annealing temperature; or

(iv) at least one nucleotide elongation at the 5′ end; or

(v) an elimination of at least one GC nucleotide pair within the first two positions of the 3′ end.

19 . The composition of claim 11 , further comprising at least one genus-specific primer pair in which at least one primer of each primer pair is labeled with a fluorescent dye, wherein the genus-specific primer pair is specific for the genus selected from the group consisting of: Pseudomonas, Bacillus, Aspergillus, Penicillium, Flavobacteriaceae, Fusarium, Burkholderia, Marinobacter, Halomonas , and Candida.

20 . The composition of claim 11 , further comprising at least one species-specific primer pair in which at least one primer of each primer pair is labeled with a fluorescent dye, wherein the species specific primer pair is specific for the species selected from the group consisting of: Penicillium chrysogenum, Candida glabrata, Hormoconis resinae and Desulfovibrio vulgaris.

Assignments (2)
SECURITY INTEREST Recorded May 2, 2024
From: ANDE CORPORATION
To: ORBIMED ROYALTY & CREDIT OPPORTUNITIES IV, LP
Reel/Frame 067298/0851 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 19, 2024
From: SELDEN, RICHARD F.; TURINGAN WITKOWSKI, ROSEMARY
To: ANDE CORPORATION
Reel/Frame 066185/0298 →
Continuity (2)
Provisional Application 62712075 · Jul 30, 2018
Related Publication 20220177980A1 · Jun 9, 2022
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