Electronic Theses and Dissertation

Kultivasi mikroalga chorella vulgaris dan thalassiosira sp. pada media pome (palm oil mill effluent) berhasil dilakukan dengan kondisi miksotrof. kultur miksotrof mengombinasikan suplai karbon organik dari pome dan karbon anorganik dari nahco3 sebesar 3000 ppm. hasil penelitian menunjukkan bahwa kadar karbohidrat, protein dan pigmen pada mikroalga chorella vulgaris dan thalassiosira sp. yang dikultivasi dalam media pome lebih rendah dibandingkan dengan mikroalga chorella vulgaris dan thalassiosira sp. yang dikultivasi dalam media kontrol (bold bassal medium). namun, kandungan lipid pada mikroalga chorella vulgaris yang ditumbuhkan pada media pome menunjukkan presentase yang lebih tinggi dibandingkan dengan media bbm. selain itu, mikroalga chorella vulgaris juga memiliki kemampuan efisinsi penghilangan cod sebesar 21,33%. hal ini menunjukkan kemampuan yang lebih baik dibandingkan dengan mikroalga thalassiosira sp. sebesar 16,56% pada hari ke-14. kata kunci: chorella vulgaris, thalassiosira sp., pome (palm oil mill effluent), cod (chemical oxygen demand)

The cultivation of microalgae Chorella vulgaris and Thalassiosira sp. in POME (Palm Oil Mill Effluent) medium was successfully carried out under mixotrophic conditions. Mixotrophic culture combines organic carbon supply from POME and inorganic carbon from NaHCO3 at 3000 ppm. The results of the study indicate that the levels of carbohydrates, proteins, and pigments in the microalgae Chorella vulgaris and Thalassiosira sp. cultivated in POME medium are not yet competitive with those in the microalgae Chorella vulgaris and Thalassiosira sp. cultivated in the control medium (Bold Bassal Medium). However, the lipid content in the microalgae Chorella vulgaris grown in POME medium showed a higher percentage compared to BBM medium. Additionally, the microalgae Chorella vulgaris also demonstrated a COD removal efficiency of 21.33%. This indicates better performance compared to the microalgae Thalassiosira sp., which achieved 16.56% on day 14. Keyword: Chorella vulgaris, Thalassiosira sp, POME (Palm Oil Mill Effluent), COD (Chemical Oxygen Demand)