You can collect the sea weeds , dry and extract in petrolum ether. Removal of the solvent will residue which you can column chromatograph. This way you can isolate different fractions , from which you can isolate auxin(growth promotor).
Dear Noorjahan A
Pls. find the attached files,
Hoping this will be helpful to your project, good luck
Regards
Prof. Houda Kawas
http://www.sciencedirect.com/science/article/pii/S0176161787800937
http://onlinelibrary.wiley.com/doi/10.1111/j.0022-3646.1993.00251.x/full
https://biologicalproceduresonline.biomedcentral.com/articles/10.1186/s12575-016-0050-1
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4913069/
http://pubs.acs.org/doi/abs/10.1021/jf904500e?journalCode=jafcau
https://books.google.com/books?id=1wM6BQAAQBAJ&pg=PA76&lpg=PA76&dq=protocol+to+isolate+auxin+from+seaweeds&source=bl&ots=5NqoY-AuYW&sig=anrnRmct3Ys4sSga1630ettBx64&hl=ar&sa=X&ved=0ahUKEwie19ib3drUAhXkDZoKHS22DJo4ChDoAQhZMAQ#v=onepage&q=protocol%20to%20isolate%20auxin%20from%20seaweeds&f=false
http://onlinelibrary.wiley.com/doi/10.1111/j.0022-3646.1991.00322.x/full
Thank you very much @ Houda Kawas for giving me more informative articles .
Hello Noorjahan
You can find some useful references on attachment 1
https://puyallup.wsu.edu/wp-content/uploads/sites/403/2015/03/seaweed-extracts.pdf
7
https://academic.oup.com/femsec/article/88/2/213/467628/Seaweed-microbial-interactions-key-functions-of
9
https://www.pphouse.org/admin/uploadpdf/22%20IJBSM_Sept_2012_Panda.pdf
11
http://researchspace.ukzn.ac.za/xmlui/bitstream/handle/10413/10513/Crouch_I_J_1990.pdf?sequence=1
15
https://www.semanticscholar.org/paper/Eckol-a-new-plant-growth-stimulant-from-the-brown-Rengasamy-Kulkarni/d8bb58627418fd3e064b1310233383deeda88635
17
https://onlinelibrary.wiley.com/doi/10.1111/j.0022-3646.1991.00322.x/full
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