Skip to main content
AMB Express

Table 2 Identification and Characterization of major Rhamnolipids compounds using LC-ESI-MS (Both in negative and positive mode).

From: Simultaneous polyhydroxyalkanoates and rhamnolipids production by Thermus thermophilus HB8

Substance

[M+H]+ m/z

[M+Na]+ m/z

[M+K]+ m/z

[M-H+Na2]+ m/z

[M-H]- m/z

Mono-rhamno-mono-lipidic congeners

[Rha-C8:2]

303

 

341

 

301

[Rha-C8:1]

305

    

[Rha-C10:2]

331

    

[Rha-C10:1]

333

   

331

[Rha-C10]

335

    

[Rha-C12:2]

359

381

   

Octyl phathalate

 

413

   

Mono-rhamno-di-lipidic congeners

[Rha-(C8-C8:1)] or [Rha-(C8:1-C8)]

447

 

485

491

445

[Rha-(C8-C8)]

449

471

487

493

447

[Rha-(C10-C8)] or [Rha-(C8-C10)]

477

499

515

521

475

[Rha-(C8-C10:1)] or [Rha-(C8:1-C10)]

475

   

473

[Rha-(C10-C10:1)] or [Rha-(C10:1-C10)]

503

525

541

547

501

[Rha-(C10-C10)]

505

 

543

 

503

[Rha-(C10-C10:1)-CH3] or [Rha-(C10:1-C10)-CH3]

517

    

[Rha-(C10-C12:1)] or [Rha-(C10:1-C12)]

531

553

569

575

529

[Rha-(C10-C12)] or [Rha-(C12-C10)]

533

555

571

577

531

[Rha-(C12-C14:1)] or [Rha-(C14-C12:1)]

587

 

625

631

585

[Rha-(C14-C14)]

617

  

661

 

[Rha-(C14-C14:1)] or [Rha-(C14:1-C14)]

615

   

613

[Rha-(C14-C16)] or [Rha-(C16-C14)]

645

   

643

[Rha-(C14-C16:1)] or [Rha-(C14-C16:1)]

643

   

641

[Rha-(C16-C16)]

673

   

671

Di-rhamno-mono-lipidic congeners

[Rha-Rha-C8)]

453

   

451

[Rha-Rha-C10:1)]

479

   

477

[Rha-Rha-C10)]

481

   

479

[Rha-Rha-C12:1)]

507

   

505

[Rha-Rha-C12)]

509

   

507

Di-rhamno-di-lipidic congeners

[Rha-Rha-(C8-C8)]

595

617

633

 

593

[Rha-Rha-(C8-C10:1)] or [Rha-Rha-(C8:1-C10)] [Rha-Rha-(C10-C8:1)] or [Rha-Rha-(C10:1-C8)]

621

 

659

665

619

[Rha-Rha-(C10-C8)] or [Rha-Rha-(C8-C10)]

623

645

661

667

621

[Rha-Rha-(C10-C10)]

651

673

689

695

649

[Rha-Rha-(C10-C10:1)] or [Rha-Rha-(C10:1-C10)]

[Rha-Rha-(C8-C12:1)] or [Rha-Rha-(C8:1-C12)]

649

671

687

693

647

[Rha-Rha-(C10-C10:1)-CH3] or [Rha-Rha-(C10:1-C10)-CH3]

663

    

[Rha-Rha-(C10-C12:1)] or [Rha-Rha-(C10:1-C12)] [Rha-Rha-(C12:1-C10)] or [Rha-Rha-(C12-C10:1)]

677

699

715

721

675

[Rha-Rha-(C10-C12)] or [Rha-Rha-(C12-C10)]

679

701

717

723

677

[Rha-Rha-(C12-C12:1)] or [Rha-Rha-(C12:1-C12)]

705

727

743

749

703

[Rha-Rha-(C12-C12:2)] or [Rha-Rha-(C12:2-C12)]

703

725

741

747

701

[Rha-Rha-(C12-C12)]

707

729

 

751

705

[Rha-Rha-(C12-C14:1)] or [Rha-Rha-(C14:1-C12)] [Rha-Rha-(C14-C12:1)] or [Rha-Rha-(C12:1-C14)]

733

  

777

731

[Rha-Rha-(C14-C14:1)] or [Rha-Rha-(C14:1-C14)]

762

784

 

806

760

[Rha-Rha-(C16-C14)] or [Rha-Rha-(C14-C16)]

792

814

  

790

  1. Data shown in bold represent major components of the corresponding Rhamnolipid mixture
Back to article page