?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KADAR+LIPID+MIKROALGA+Tetraselmis+sp.+TERHADAP+PEMBERIAN%0D%0ASTRESS+OSMOTIK+BERUPA+pH+DAN+SALINITAS+YANG+BERBEDA&rft.creator=INAS+FADHILAH%2C+1517021098&rft.subject=570+Biologi&rft.description=Microalgae+Tetraselmis+sp.+has+a+high+lipid+content%2C+so+it+can+be+used+as+a%0D%0Abiodegradable+alternative+energy+source.+It+is+possible+for+lipid+levels+to+increase+if%0D%0Agiven+osmotic+stress.+This+study+aims+to+determine+population+density%2C+growth+rate%2C+and+total+lipid+levels+of+microalgae+Tetraselmis+sp.+Osmotic+stress+is+given+in+the%0D%0Aform+of+different+pH+and+salinity+in+each+culture+medium.+This+research+was%0D%0Aconducted+in+December+2018+until+January+2019+in+the+Molecular+Biology%0D%0AAquatic+Laboratory%2C+Biology+Department%2C+Faculty+of+Mathematics+and+Natural%0D%0ASciences%2C+University+of+Lampung.+This+study+uses+a+completely+randomized%0D%0Adesign+(CRD)+with+a+factorial+pattern.+The+use+of+factorial+CRD+with+2+factors%0D%0Aconsisting+of+9+treatments+and+3+replications.+The+first+factor+(F1)+is+the+difference%0D%0Ain+pH+levels+(5%2C+8%2C+and+9%2C5)+and+the+second+factor+(F2)+is+the+difference+in+salinity%0D%0A(10+ppt%2C+15+ppt%2C+and+20+ppt).%0D%0A%0D%0Aiii%0D%0A%0D%0AThe+parameters+that+will+be+observed+in+this+study+are+cell+density%2C+growth%0D%0Arate%2C+and+total+lipid+levels+of+microalgae+Tetraselmis+sp.+Data+were+analyzed+using%0D%0AAnalysis+of+Variance+(ANOVA)+and+tested+further+with+the+LSD+Test+at+the+level%0D%0Aof+5%25.+The+results+showed+that+the+population+density+of+Tetraselmis+sp.+the%0D%0Ahighest+was+found+in+the+salinity+treatment+of+20+ppt+with+a+pH+of+9.5.+The+highest%0D%0Agrowth+rate+in+the+salinity+treatment+was+10+ppt%2C+namely+with+pH+9.5+of+10%25+%2F+day%2C+in+the+salinity+treatment+of+15+ppt+with+a+pH+of+5+at+21%25+%2F+day%2C+and+a+salinity+of+20%0D%0Appt+with+a+pH+of+9.5+at+43%25+%2F+day.+The+highest+total+lipid+level%0D%0AMikroalga+Tetraselmis+sp.+memiliki+kandungan+lipid+cukup+tinggi%2C+sehingga+dapat+digunakan+sebagai+sumber+energi+alternatif+yang+biodegradabel.+Dimungkinkan+kadar+lipid+dapat+meningkat+jika+diberikan+stress+osmotik.+Penelitian+ini+bertujuan+untuk+mengetahui+kepadatan+populasi%2C+laju+pertumbuhan%2C+dan+kadar+total+lipid+mikroalga+Tetraselmis+sp.+yang+diberikan+stress+osmotik%0D%0Aberupa+kadar+pH+dan+salinitas+yang+berbeda+pada+tiap+media+kultur.+Penelitian+ini%0D%0Atelah+dilaksanakan+pada+bulan+Desember+2018+sampai+bulan+Januari+2019+di%0D%0ALaboratorium+Perairan+Biologi+Molekuler+Jurusan+Biologi+Fakultas+Matematika%0D%0Adan+Ilmu+Pengetahuan+Alam+Universitas+Lampung.+Penelitian+ini+menggunakan%0D%0ARancangan+Acak+Lengkap+(RAL)+dengan+pola+Faktorial.+Penggunaan+RAL%0D%0Afaktorial+dengan+2+faktor+yang+terdiri+atas+9+perlakuan+dan+3+kali+ulangan.+Faktor%0D%0Apertama+(F1)+adalah+perbedaan+kadar+pH+(5%2C+8%2C+dan+9%2C5)+dan+Faktor+kedua+(F2)%0D%0Aadalah+perbedaan+salinitas+(10+ppt+%2C+15+ppt%2C+dan+20+ppt).%0D%0A%0D%0Av%0D%0A%0D%0AParameter+yang+akan+diamati+dalam+penelitian+ini+adalah+kepadatan+sel%2C+laju+pertumbuhan%2C+dan+kadar+total+lipid+dari+mikroalga+Tetraselmis+sp.+Data%0D%0Adianalisis+menggunakan+Analysis+of+Variance+(ANOVA)+dan+diuji+lanjut+dengan%0D%0AUji+BNT+pada+taraf+5%25.+Hasil+penelitian+menunjukkan+bahwa+kepadatan+populasi%0D%0ATetraselmis+sp.+tertinggi+terdapat+pada+perlakuan+salinitas+20+ppt+dengan+pH+9%2C5.+Laju+pertumbuhan+tertinggi+pada+perlakuan+salinitas+10+ppt+yaitu+dengan+pH+9%2C5%0D%0Asebesar+10%25%2Fhari%2C+pada+perlakuan+salinitas+15+ppt+dengan+pH+5+sebesar+21%25%2Fhari%2C+dan+pada+salinitas+20+ppt+dengan+pH+9%2C5+sebesar+43%25%2Fhari.+Kadar+total+lipid%0D%0Atertinggi+Tetraselmis+sp.+pada+perlakuan+salinitas+10+ppt+dengan+pH+9%2C5+sebesar%0D%0A14%2C29%25.+Kata+kunci%3A+kadar+total+lipid%2C+pH%2C+salinitas%2C+Tetraselmis+sp.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F56161%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F56161%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F56161%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++INAS+FADHILAH%2C+1517021098++(2019)+KADAR+LIPID+MIKROALGA+Tetraselmis+sp.+TERHADAP+PEMBERIAN+STRESS+OSMOTIK+BERUPA+pH+DAN+SALINITAS+YANG+BERBEDA.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F56161%2F