@thesis{thesis,
		author={Fransisca  Dita Tri Ananda},
		title ={OPTIMASI SETIL ALKOHOL, TRIETHANOLAMIN DAN ASAM
STEARAT PADA FORMULASI SEDIAAN LOTION DARI FRAKSI ETIL
ASETAT EKSTRAK ETANOL HERBA KROKOT (Portulaca oleracea L.)
SEBAGAI TABIR SURYA},
		year={2021},
		url={http://librepo.stikesnas.ac.id/795/},
		abstract={The ethyl acetate fraction of krokot herb ethanol extract (Portulaca oleracea
L.) contains flavonoids and has activity as a sunscreen. The optimum formula for
the lotion ethyl acetate fraction of krokot herb ethanol extract was obtained based
on the Simplex Lattice Design (SLD) method using Design Expert software version
11 with variations of cetyl alcohol, triethanolamine and stearic acid. The lotion
preparations were made in 10 formulas and then tested for their physical properties.
Physical properties data is used to determine the optimum formula. The difference
in the physical properties of the experimental optimum formula to the predicted
physical properties was determined by the t-test. The results showed that the
optimum lotion formula was obtained with a composition of 3.00% cetyl alcohol,
3.00% triethanolamine and 9.00% stearic acid. The t-test showed no significant
difference between the physical properties of the experimental results and the
predicted physical properties. The ethyl acetate fraction lotion of krokot herb
ethanol extract has activity as a sunscreen with an SPF value of 17.592 so it is
classified as having ultra-protective power.}
		}